October is National Breast Cancer Awareness Month and there is good news to report!
A recent study in the Journal of the American Medical Association from Harvard has found that regular exercise can improve the survival of patients with breast cancer. I have discussed these findings with local physician, Dr. Christopher Peters of Northeast Radiation Oncology Center and he says that he regularly councils his patients about the value of exercise in the recovery from breast cancer. As found in the study, he recommends aerobic exercise such as walking and/or biking and mild resistance exercise. He also encourages patients to enroll in a formal rehabilitation program, especially to prevent a frozen shoulder if invasive surgery was performed.
Previous studies have shown many benefits of exercise for breast cancer patients including improving immune functioning and controlling depression. However, new research recently presented at the American Association for Cancer Research annual meeting was the first report to conclude that physical exercise may improve survival in breast cancer patients. Additional studies have shown other benefits of exercise. For example, a study conducted at Vanderbilt University found that women who had high activity levels throughout life were less likely to develop endometrial cancer. At the Hutchinson Cancer Research Center in Seattle, researchers found that exercise with moderate intensity can reduce serum markers of inflammation (C-reactive protein), which, when elevated, are associated with chronic disease and poor cancer survival.
In the current study, conducted at Harvard University, researchers compared survival rates in women with breast cancer with exercise levels in terms of metabolic equivalent (MET) hours per week. While women with high activity levels of exercise had the best outcomes, even women with moderate exercise benefited.
NEXT MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!”
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.
Back to school also means back to sports. Countless students are participating in tennis, soccer, cross country running, gymnastics, and other sports. These student athletes and others who engage in recreational sports and exercise can be vulnerable to excessive training for all the right and wrong reasons. Parents, family members, coaches, teachers, athletic trainers, friends and health providers must be aware of potential for exercise abuse…as part of the “fitspiration” movement.
It takes only a cursory glance through social media to become aware of the “fitspiration” movement. This catchy term may accompany posts of workout videos, pictures depicting physical activity, or pictures of individuals showing off the muscular bodies they obtained through dedication to rigorous exercise regimens. In a sense, exercise and fitness have become trendy in our society, with more strenuous exercise routines being perceived as more impressive. Cars boast bumper stickers with numbers such as “13.1,” “26.2,” or even “50,” referring to the distances so proudly conquered by runners. When we hear a friend has decided to commit to a rigid training schedule to complete a marathon, we are often in awe of their self-control and motivation, wishing we were that dedicated. But can exercise be a bad thing? The answer is complicated. Exercise is one of the best things we can do for our health. I have heard physicians say that if all the benefits of exercise could be bottled up into a pill; pharmaceutical companies would be fighting for the chance to sell it. However, it can get complicated when one’s reasons for exercising stem from a potentially destructive place, rather than a pursuit of health.
Exercise bulimia is a term used to refer to the excessive use of exercise to burn calories or try to keep a low body weight. It is not a medical diagnosis in and of itself, but the notion of using exercise to make up for excessive calorie consumption or maintain an unhealthily low body weight can occur in both anorexia nervosa and bulimia nervosa. Moreover, when excessive exercise occurs in combination with a significantly low body weight, an intense fear of gaining weight, a disturbed body image, undue influence of body shape on self-worth, or a failure to recognize the seriousness of the condition, an individual would meet the criteria for anorexia nervosa.
Anorexia nervosa can cause serious complications in all body systems. Some examples include disrupted functioning of the heart, reduced lung capacity, hormonal imbalance, amenorrhea, (loss of the menstrual period in women), changes in brain structure, and in severe cases, difficulty with memory. The hormonal changes associated with amenorrhea, especially when coupled with extreme exercise, can lead to reduced bone density and can put women at high risk of stress fractures. Stress fractures are breaks in the bone that occur from overuse through large amounts of exercise rather than the traumatic bone breaks we typically think of where an obvious event results in a broken bone.
Because exercise bulimia can be a part of an eating disorder with potentially life-threatening consequences, it is important to be aware of the warning signs that someone’s exercise routine might be part of an eating disorder. Signs of exercise bulimia may include:
While the definition of exercise bulimia implies a voluntary engagement in excessive exercise for weight loss, my experience from being on female track and cross country teams in high school and college has shown me that anorexia nervosa does not always fit the mental picture we may have of someone who refuses to eat at all or even of exercise bulimia where an individual compulsively engages in excessive exercise. During cross country, the mileage we ran likely would have been considered excessive by the average person. Our team often trained 7 days a week with run-length ranging from 5-12 miles. Most runs were at least 7 miles, and some of my teammates had long runs in excess of 12 miles. The men on our team ran even farther. In hindsight, one of my teammates may have met the criteria for a diagnosis of anorexia nervosa. Her weight was significantly below normal, she feared weight gain, did not eat sufficient calories to replenish what she burned on runs, and despite knowing she was thin, did not fully recognize the potential health consequences due to her low weight. However, it was not a clear cut problem. She was not an obvious candidate for an eating disorder because she was not pursuing the excessive exercise; she was simply following her coach’s training plan. If she did not exercise to the extent she did, the amount of food she ate would have been considered normal, so seeing her eating habits alone did not trigger any red flags. Finally, cross country runners are known for being lean, often even emaciated; it was a common side effect of the sport often not given a second thought. Thankfully, this runner never fell victim to the dangerous downward spiral that is sometimes seen in patients with anorexia nervosa. However, it is important to be aware of the unsuspecting ways in which an eating disorder can sometimes present.
Treatment of eating disorders typically involves a multi-pronged approach with nutritional counseling, psychotherapy, and general medical care playing a role. The nutritional counseling aims to help the patient restore a healthy diet to attain a healthy weight, the psychotherapy aims at getting to the root of the issues that may have contributed to the onset of the eating disorder, and general medical care may be necessary to manage any complications from the eating disorder depending on its seriousness. Educational programs about eating disorders and risk factors have also been shown to be successful in helping to prevent eating disorders.
It can sometimes be a fine line between a healthy passion for exercising and eating well and the start of an eating disorder. Especially in athletes where extreme exercise is part of the sport and putting in extra training is rewarded, it is valuable to be aware of the signs and symptoms of exercise bulimia to help prevent a loved one from crossing over that line. Though serious health consequences are possible in the setting of an eating disorder, treatment and recovery are very possible.
For More Information: www.nationaleatingdisorders.org
GCSOM Guest Author: Mary Pelkowski, MD4 is a student in the Geisinger Commonwealth School of Medicine MD Class of 2022. She grew up in Sayre, PA and graduated from Notre Dame High School. She received her undergraduate degree in biology with a minor in chemistry from Saint John Fisher College in Rochester, NY.
NEXT MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!”
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
For all of Dr. Mackarey's articles visit: https://mackareyphysicaltherapy.com/forum/
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.
82 million adults spend an estimated 28 billion dollars on gym memberships each year! WHY? There are many reasons we exercise. Some people exercise to prevent illness such as cardiovascular disease or osteoporosis. Others exercise for mental health and as a stress release; others do it to improve strength, flexibility, and endurance to prepare for a sport. However, the number one reason people exercise is TO LOOSE WEIGHT!
When it comes to losing weight, patients have asked me a wide variety of questions over the years. However, certain questions are consistent. “What exercise is the best to burn calories?” “Even though I exercise 2-3 times per week, why can’t I lose weight?” “What is BMR?” “If I eat a Snickers bar, how much exercise do I need to do to burn it off?” “Are there any tools that I can use to help me track my calories and exercise output?”
Have you ever heard people say that they never felt better or burned more calories as they did when they ran? Well, they may be right! The following numbers are based on the average male weighing 150 pounds: running 6 miles per hour will burn 700+ calories (11-12 calories per minute); vigorously skipping with jump rope or fast cycling will do the same; vigorous walking at 4 miles per hour and moderate biking will burn 600+ calories (10 calories per minute). The 400-500 calorie club includes the following activities: slow jogging, swimming, football, basketball, baseball, tennis, skiing, and moderate walking (3.5 miles per hour). Light gardening burns more calories than golfing using a cart (250 vs. 180).
How many times have you heard people say, “It is hard for me to lose weight because I have a slow metabolism?” What does that mean? To explain this in detail you first must understand BMR. BMR is basic metabolic rate. It is the number of calories that your body requires to operate basic body functions that you don actively control, such as continuing to breathe, and keep your cells and organs working each day. The BMR is influenced by age, height, gender, body fat, and fitness level. BMR is inherently different (high or low) in each individual. While you can’t change your gender or height, you can influence some things to influence your BMR and burn more calories at rest. One, exercise for longer durations, with greater intensity and more frequently. Two, lower your body fat by eating less calories, especially fat and carbohydrates in your diet. Simply, eat less calories than you burn! Three, improve you muscle/fat ratio by weight training.
BMI: < 18.5 = Underweight
BMI: 18.5 – 24.5 = Normal Weight
BMI: 25. - 29.9 = Overweight
BMI: >30. = Obestiy
For example, I am a 57 year old male, weighing 150 pounds at 5 feet 8 inches tall with a BMI of 22.8
*Calculate you BMI by entering you gender, height and weight and find how many calories per food item at:
There are several tools available for free online to help with tracking calories and exercise visit Prevention Magazine at: www.myfooddiary.com or try the App “Lose It”
BMI Calculator – to calculate your BMI
Calorie Burner – to calculate how many calories are burned with various activities
Daily Calorie Calculator – Find how many calories are in specific foods and what you need to do to loose or gain weight.
So remember, the number one reason we exercise is TO LOSE WEIGHT! But depending on exercise alone to lose weight is an exercise in futility. Losing weight is an intelligent and consistent combination of a balanced diet with portion control, proper nutrition, adequate exercise and activity grounded in lifestyle changes.
Read Dr. Mackarey’s Health & Exercise Forum – every Monday
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.
As the country prepares to return to school and work this fall during a new wave of infections from the Delta variant of COVID-19, it is more important than ever to find healthy ways to control stress and anxiety. While exercise is important to trim our waistline or to speed up our metabolism, there may be more benefit to lacing up those sneakers than you’d think. Recent studies have established a link between exercise, stress and cognition, making physical activity even more important.
Exercise has been shown to improve sleep and mood, decrease stress, and even increase libido. It also can bolster our self-esteem and ability to problem-solve and to remember details. In fact, strength training has even been shown to reverse cognitive decline to a degree in aging adults with mild impairment. Though the medical community is still trying to elucidate exactly how exercise boosts our brains physiologically, increased circulation to the brain and modulation of the hypothalamus-pituitary-adrenal axis that regulates the body’s response to stress have been implicated as the bearers of benefit. While exercise can be advantageous for everyone, it perhaps is even more valuable to those struggling with mood disorders. Exercise can help combat anxiety and depression and quell the symptoms of Attention Deficit Hyperactivity Disorder and Post Traumatic Stress Disorder as it helps the brain to pump out neurotransmitters and pain-fighting endorphins. Exercise makes addiction management easier, as well, and has recently been shown to help alcoholics lessen consumption.
So, how much exercise exactly is enough to illicit tangible cognitive benefit, you ask? Any amount of weight lifting, running, walking, or yoga helps, but habitual activity helps the most. Studies cite that a few consecutive weeks of participation in a fitness regimen yielded notable, positive results in subjects. Try to make exercise part of your daily routine to encourage good fitness habits. If you find the idea of adopting a strenuous new fitness program intimidating or off-putting, have no fear. Moderate exercise is enough to do the trick. The Mayo Clinic cites both brisk walking and mowing the lawn as examples of moderate activity, so an average fitness level is adequate for yielding positive mental results.
If you’re thinking about beginning an exercise program for the first time, start gradually. Begin with walking for 10 to 15 minutes twice daily, and add 1 or 2 minutes to your session every time you walk until you can walk continuously for 45 to 60 minutes. The same principle can be used when beginning other fitness routines involving biking, swimming, running, etc. Begin a weight training program to strengthen bones and tendons using 3 to 5 pound dumbbells, and increase the weight you use by a pound once you can easily perform 30 consecutive repetitions. Be careful to pay close attention to posture and form. Contact your physical therapist or a personal trainer for assistance with designing an appropriate exercise program. Don’t hesitate to contact your physician, either, if you have questions about whether a particular exercise program is safe and suitable for your age group or current fitness level.
Read Dr. Mackarey’s Health & Exercise Forum – every Monday. This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at Geisinger Commonwealth School of Medicine.
For all of Dr. Mackarey's Articles visit: https://mackareyphysicaltherapy.com/forum/
In 2000, President Bill Clinton dedicated March as National Colorectal Cancer Awareness Month. The purpose of this designation is to increase public awareness of the facts about colon cancer – a cancer that is preventable, treatable and has a high survival rate. Regular screening tests, expert medical care and a healthy lifestyle, which includes a proper diet and exercise, are essential for prevention. Several studies have demonstrated that exercise can also help prevent colon cancer.
The American Cancer Society estimates that there will be approximately 150,000 new cases of colorectal cancer in 2021. Of these, 52,980 men and women will succumb to the disease. It is the second-leading cause of U.S. cancer deaths for both men and women combined. The good news is incidence and mortality rates are dropping both nationally as well as in northeast Pennsylvania. The bad news is northeast Pennsylvania still has increased incidence and mortality rates when compared to the national average.
Studies show that prevention of this disease is multifaceted and includes: engaging in daily exercise, eating a low-fat diet with little red meat, avoiding smoking, drinking in moderation and having regular colonoscopy screenings.
Early detection is the key to survival. Death from colorectal cancer can be eliminated if caught at the earliest signs of disease. Colorectal cancer progresses very slowly, usually over years. It often begins as non-cancerous polyps in the lining of the colon. In some cases, these polyps can grow and become cancerous, often without any symptoms. Some symptoms that may develop are: blood in stool, changes in bowel movement, feeling bloated, unexplained weight loss, feeling tired easily, abdominal pain or cramps, and vomiting. Contact your physician if you have any of these symptoms.
The risk of colon cancer increases with age, as 90 percent of those diagnosed are older than age 50. A family history of colon cancer increases risk. Also, those with benign polyps, inflammatory bowel disease, ulcerative colitis or Crohn’s disease are at greater risk and should be screened more frequently.
The intestine works like a sewage plant, recycling the food and liquid needed by your body. However, it also stores waste prior to disposal. The longer the wastes remain idle in your colon or rectum, the more time toxins have to be absorbed from you waste into the surrounding tissues. One method in which exercise may help prevent colon cancer is to get your body moving, including your intestines. Exercise stimulates muscular contraction called peristalsis to promote movement of waste through your colon.
Exercise to prevent colon cancer does not have to be extreme. A simple increase in daily activity for 15 minutes, two times per day or 30 minutes, once per day is adequate to improve the movement of waste through your colon. This can be simply accomplished by walking, swimming, biking or playing golf, tennis or basketball. For those interested in a more traditional exercise regimen, perform aerobic exercise for 30-45 minutes four to five days per week, with additional sports and activities for the remainder of the time. For those in poor physical condition, begin slowly. Start walking for five to 10 minutes, two to three times per day. Then, add one to two minutes each week until you attain a 30-45 minute goal.
Medical Contributor: Christopher A. Peters, M.D
Dr. Christopher Peters is a partner of Radiation Medicine Associates of Scranton (RAMAS) and serves as medical director of Northeast Radiation Oncology Centers (NROC). He is an associate professor of clinical medicine at GCSOM.
Sources: American Cancer Society/Northeast Regional Cancer Institute, and CA Cancer J Clin.
This article is not intended as a substitute for medical treatment.
If you have questions related to your medical condition, please contact your family physician.
For further inquires related to this topic email: drpmackarey@msn.com
For all of Dr. Mackarey's articles visit: https://mackareyphysicaltherapy.com/forum/
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.
Part II of II
Last week in Part I on Depression I discussed the importance of laughter for the prevention of depression. In this column, I will discuss one of the most understated benefits of exercise – mental health! Specifically, aerobic exercise (exercise that increases your heart rate for 30 minutes or more) such as walking, biking, running, swimming, hiking, elliptical & stepper machines to name a few, is the secret to “runner’s high.” This exercise euphoria is not limited to runners alone, but all who engage in aerobic exercise are more likely to experience high energy, positive attitude, and mental wellness.
Physical activity, specifically aerobic exercise, is a scientifically proven useful tool for preventing and easing depression symptoms. Studies in the British Journal of Medicine and the Journal of Exercise and Sports Science found that depression scores were significantly reduced in groups that engaged in aerobic running, jogging or walking programs, 30-45 minutes 3-5 days per week for 10-12 weeks, when compared to a control group and a psychotherapy counseling group.
Depression is the most common mental disorder and is twice as common among women as in men. Symptoms include: fatigue, sleeplessness, decreased appetite, decreased sexual interest, weight change, and constipation. Many of these symptoms are likely to bring an individual to their family physician. Unfortunately, depression is on the increase in the United States. According to the National Ambulatory Medical Care Survey, in the early 2000’s, 7 million visits to a primary care physician were for the treatment of depression. 10 years later the number doubled.
According to research reported in The Physical and Sportsmedicine, exercise reduces depression in two ways, psychologically (mentally) and physiological (physically).
Psychological or Mental Benefits of Exercise on Depression:
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Access all of Dr. Mackarey's articles in the Health and Exercise Forum at: https://mackareyphysicaltherapy.com/forum/
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice in downtown Scranton and is an associate professor of clinical medicine at GCSOM.
2nd of 3 Columns on Balance Disorders and Falls Prevention
Last week we discussed the causes of balance loss. Today, we will discuss treatment for this problem. Two primary treatments are medication and vestibular rehabilitation.
Medication for dizziness and loss of balance requires a visit to your family doctor. In a more involved case, your family physician may refer you to a specialist such as an ear, nose and throat physician or neurologist. There are many medications available for loss of balance. While this can be complicated, the specialist will determine the most appropriate one for your balance disorder.
Vestibular rehabilitation for dizziness and loss of balance is a great adjunct to medication to manage your balance disorder. It is a comprehensive program that addresses a wide range of problems that may cause imbalance such as: addressing the inability to tolerate motion, visual changes, providing balance rehabilitation, instruction in repositioning techniques for BPPV (benign paroxysmal positional vertigo), correcting postural dysfunctions, muscle weakness, joint stiffness, offering education for prevention, maintenance and self care after discharge. Through experience and motion, vestibular rehabilitation allows: formation of internal models (one learns what to expect from ones actions), learning of limits (learning what is safe and what is not) and sensory weighting (one sense, either vision, vestibular or somatosensory is selected in favor of another in maintaining balance).
In some minor cases, vestibular rehabilitation may be performed at home. However, more serious cases may require an evaluation by a physician specializing in the dizzy patient such as an ear, nose and throat physician or neurologist. These specialists will determine the nature of your problem and may enroll you in a more structured program under the direction of a physical therapist. Vestibular rehabilitation addresses not only vertigo (i.e. dizziness) but also balance problems.
Benign paroxysmal positional vertigo (BPPV) and vestibular hypofunction (e.g. unilateral and bilateral vestibular loss) are two causes of vertigo that can be addressed by a vestibular rehabilitation. Your physical therapist will tailor a program designed to address your specific vestibular disorder (i.e. BPPV or hypofunction).
If you have been diagnosed with BPPV, your therapist may take you through an Epley maneuver. In BPPV, particles in the inner ear become displaced and get lodged in an area that produces vertigo. Vertigo is experienced with tilting head, looking up/down and rolling over in bed. The causes include: infection, head trauma and degeneration. During the Epley maneuver the patient is guided through positional changes which clear these particles from the symptomatic part of the ear.
If you have been diagnosed with either unilateral or bilateral vestibular hypofunction, your therapist will most likely design a program to “retrain” your vestibular system with special exercises, including:
If you have a vestibular problem that primarily manifests as loss of balance, exercises to stimulate your balance responses, strengthen your legs, and enhance your joint position sense may be helpful. These exercises encourage reliance on vestibular and/or visual input. The exercises are performed on unstable surfaces (i.e. tilt boards, balance beams, and foam) and include a variety of tasks from simple standing to more complex arm and leg movements requiring coordination.
In addition to the above mentioned treatments, Posturography and Virtual Reality Training are computerized programs that may be used by your therapist to address your vestibular and/or balance problem. Also, Recreational Activities that involve using your eyes while head and body is in motion (i.e. dancing, golfing, tennis, walking while looking from side to side) are shown to be helpful in stimulating balance and vestibular responses. Furthermore, you may consider Alternative Balance Activities (i.e. Yoga, Tai Chi, Pilates) which incorporate slow gentle movements to improve strength, balance and posture as well as relaxation techniques for the anxiety that accompanies dizziness/off-balance.
Whatever you do, just DO NOT give into your dizziness. People that just “give up” become sedentary. A sedentary lifestyle further denies your body the necessary stimuli to challenge your vestibular system and make it stronger. Eventually, these people end up in a vicious cycle because the more they sit the dizzier and more off balance they get which only makes them sit more!
Remember, one fall increases your risk of another fall. It is imperative to determine what caused your fall and take action! Ask your physician or physical therapist to assess your fall risk.
Medical Reviewer: Mark Frattali, MD, ENT at Delta Medix, Division Chairman Otolaryngology – Head Neck Surgery at Commonwealth Health Regional Hospital
NEXT MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!” Next Monday Part III on Balance Disorders and Falls Prevention
Read all of Dr. Mackarey's articles at: https://mackareyphysicaltherapy.com/forum/
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate clinical professor of medicine at GCSOM.
According to the New York Times, there is a shortage and backorder of bicycles this summer due to COVID-19, especially in the cities where public transportation is discouraged. Fortunately, in NEPA, the problem is not so extreme. For those who have a bike, now might be a good time to dust them off and enjoy the many beautiful and well-maintained trails are available at the Countryside Conservancy at Lackawanna State Park, other locations in the Abingtons or the Lackawanna Heritage Valley Authority.
However, whether you head out for 5 or 50 miles, ensuring a proper bike fit should be on your checklist. Riding a bicycle that is properly fit to your style and body will not only help to prevent injury, but allow for a more comfortable riding experience. There are many things to take into consideration when checking your bike fit. First and foremost you must choose a bike that fits your style of riding.
For the sake of simplicity 3 basic styles of bikes include Road bikes, Hybrid bikes and Mountain bikes. Road bikes are designed for long distance riders, hybrid bicycles can be used for longer distance riders, but usually accommodates a recreational cyclist, and mountain bikes are designed for dirt or gravel and technical trails. The next component of ensuring a proper bike fit is making sure that you have a good foundation by choosing the right sized frame. To find the right sized frame you can use the following guidelines as a way to start or simply ask the local bike shop or bike fit consultant of your choice for help.
Road bikes: When straddling the bike you should have about 1” of clearance between your body and the top tube if the bike has a straight top tube (which runs parallel to the ground). When lifting the bike you should have 1” clearance between the tires and the ground. If the bike has a sloping top tube (semi-compact design) you should have a clearance of 2” or more.
Mountain bikes: When straddling the bike lift the bike off the ground and you should have a minimum of 2” clearance between the ground and the tires. With full suspension bikes you will want 1”-2” standover clearance because when you sit on the bike the frame will become lower from compressing the suspension. More aggressive riders will likely have 3”-5” of clearance.
Comfort bikes: Standing over a comfort bike to chose the right sized frame is not necessary. They are commonly designed with a steep sloping top tube and allow the rider to put feet firmly on the ground when the rider comes to a stop.
Now that you have right size for your bike you should adjust the components of the bike to allow for a more comfortable riding experience. Please use the diagram as a point of reference for the following tips. Also be sure to reexamine your bike fit after any bad falls. Keep in mind these measurements are meant to be used as a simple guideline and if you have any pre existing injuries or concerns please be sure to consult your local Physical Therapist or bike fit consultant.
Handlebars (HB)
Knee to Pedal
Foot to Pedal
If you are a recreational cyclist it’s a good idea to take all the proper steps in preventing injury. This article can be used as a reference point to help to prevent common cycling injuries, enhance your comfort and improve your riding efficiency. If you have any further questions about enhancing your bike fit please contact your local physical therapist or bike fit consultant.
Sources: REI.com APTA.org
CoAuthor: Sarah Singer, PTA is a physical therapist assistant at Mackarey Physical Therapy, specializing in orthopedic and sports rehab.
EVERY MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!” at https://mackareyphysicaltherapy.com/forum/
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com. Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice in downtown Scranton and is an associate professor of clinical medicine at GCSOM.
Due to social distances and other appropriate precautions during the COVID-19 pandemic, many people are filling the void in their lives with outdoor endurance exercises such as running, cycling, hiking etc. However, as summer is in full swing, with temperature and humidity rising, remembering to properly hydrate is essential.
Next to oxygen, water is the nutrient most needed for life. A person can live without food for a month, but most can survive only three to four days without water. Even though proper hydration is essential for health, water gets overlooked as one of the six basic nutrients. Dehydration occurs when the amount of water taken into the body is less than the amount that is being lost. Dehydration can happen very rapidly (i.e. in less than eight hours); the consequences can be life threatening and the symptoms can be alarmingly swift.
In the body, water is needed to regulate body temperature, carry nutrients, remove toxins and waste materials, and provide the medium in which all cellular chemical reactions take place. Fluid balance is vital for body functions. A significant decrease in the total amount of body fluids leads to dehydration. Fluids can be lost through the urine, skin, or lungs. Along with fluids, essential electrolytes, such as sodium and potassium, are also perilously depleted in a dehydrated individual.
The risk of dehydration is not limited to endurance athletes and outdoor enthusiasts. Dehydration is the most common fluid and electrolyte disorder of frail elders, both in long term care facilities and in the community! Elders aged 85 to 99 years are six times more likely to be hospitalized for dehydration than those aged 65 to 69 years.
Is water adequate to prevent dehydration? Will a sports drink improve my performance? While some answers to these questions apply generally to all, others vary according to the temperature, humidity, length of time and intensity of the activity and condition of the athlete.
Proper hydration is essential for the comfort and safety of the recreational and serious athlete. Hydration is critical to maintain cardiovascular function, body temperature and muscle performance. As temperature, humidity, intensity, and duration of exercise increase, so too does the importance of proper hydration. Excessive sweating can lead to a loss of blood volume which requires the heart to work much harder to circulate you blood through your body.
Dehydration is a major cause of fatigue, loss of coordination, and muscle cramping leading to poor performance. Prehydration, (drinking before exercise) is the first step in preventing dehydration. Marathon runners, other long-distance runners, and cyclists often prehydrate1-2 days before a big event. Rehydration, (drinking during or after exercise) is the second step in preventing dehydration. While athletes may be more vulnerable to dehydration, all persons engaging in exercise would benefit from increased performance, delayed muscle fatigue and pain by maintaining adequate hydration. Proper prehydration would include drinking 12-16 ounces of water 1-2 hours before exercise. Athletes with other health issues should consult their family physician before engaging in long distance endurance sports.
NEXT MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!”
For all of Dr. Mackarey articles visit https://mackareyphysicaltherapy.com/forum/
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.
Part II of II
I think we would all agree, technology is a wonderful thing. However, like all good things, it comes at a price. Students and workers alike are suffering from the many physical effects of sitting for too many hours...especially with COVID-19 home confinement! Studies show the impact of prolonged sitting, especially with poor posture, are multifaceted: pain, headaches, vision problems, poor concentration, excess fat storage with weight gain. Studies strongly support the use of using good posture, ergonomic workstations, posture stretches and frequent changes of positions, including the use of standing desks to prevent pain and injury as we discussed last week in part I.
The Problem is Gravity!
The average head weighs 10 to 12 pounds and when tilted down at a 45 degree angle the forces of gravity are multiplied by 5. While reading, studying or working on the computer with poor posture, one must support 50 or more pounds of pressure on the neck, middle and lower back for hours on end. It is no wonder why this activity is associated with headaches, neck and back pain, numbness and tingling in arms and legs, muscle spasms etc. Some studies report the lifetime prevalence of neck and shoulder pain in office workers as high as 80%.
Spine problems can be prevented with good posture and proper body mechanics. Poor posture and improper body mechanics subject the spine to abnormal stresses that, over time, can lead to degeneration and pain. Good posture and proper body mechanics and frequent changes in positions, can minimize current spine pain and prevent recurrent episodes. Posture is the position in which you hold your body upright against gravity. Good posture involves positions that place the least amount of stress on the spine. Good posture maintains the spine in a “neutral” position. In a neutral spine, the three normal curves are preserved (a small hollow at the base of the neck, a small roundness at the midback and a small hollow in the low back). When viewed from the side, the upper back appears straight with a small hollow in the lower back.
GOOD POSTURE
Standing: Feet should be shoulder width apart. Distribute body weight evenly through both feet. Do not lock knees. Maintain a small hollow in lower back with “tailbone” slightly tucked down. Lift the breastbone by drawing shoulder blades back and down. Make chin level. Earlobes should be in line with the middle of shoulders. Relax jaw and neck muscles by resting tongue on the roof of mouth.
Sitting: Sit in a firm, high-back, straight-back chair. Buttocks should touch the back of chair while maintaining a small space between the back of knees and the seat of the chair. Distribute body weight evenly on both hips. Maintain an arch in the low back. A lumbar roll is recommended. It is a foam roll, 4” to 5” in diameter and 12” long, placed at belt level. Place feet flat on the floor with hips and knees bent at a right angle. Keep knees even with or slightly higher than hips. Use a footstool or footrest if necessary. Do not cross legs! Lift the breastbone by drawing shoulder blades back and down. Earlobes should be in line with the middle of shoulders. Position the armrests properly allowing elbows and forearms to rest with shoulders relaxed. If armrests are too high shoulders will shrug up and if too low will cause slouching.
POSTURE EXERCISES
The following exercises should be performed throughout the day as a break from sitting, studying or working at home, school or the office. They should be performed gently, slowly, held for 3-5 seconds and repeated 5-10 times. The exercises should only cause a slight stretch but NOT PAIN.
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This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com. Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at Geisinger Commonwealth School of Medicine.
