Physical Therapist's Guide to
Diabetes is a condition in which the body either does not produce enough of the hormone insulin, or the cells in the body do not react normally to insulin. When either of these conditions occurs, it causes the level of glucose (sugar) in the blood to become too high. High blood glucose can cause many health problems.
In 2012, nearly 30 million Americans, or 9.3% of the population, had diabetes. Only an estimated 21 million Americans currently know they have diabetes; another 8.1 million may be unaware that they have the disease. Diabetes rates are almost double for Native Americans and African Americans. About 86 million Americans have "prediabetes," a condition in which blood glucose levels are abnormal but are not yet considered diabetic. In 2010, diabetes was the seventh leading cause of death in the United States. Worldwide, 382 million people were known to have diabetes in 2013.
Diabetes can affect anyone at any age, and can be related to physical problems such as weakness, loss of endurance, obesity, balance problems, and a sedentary lifestyle. Physical activity and exercise are important and effective ways to lower high blood glucose levels. Physical therapists help people with diabetes improve or avoid related problems, and can teach sedentary people how to add physical activity to their daily lives in safe, effective, and enjoyable ways.
What Is Diabetes?
Diabetes, also known as diabetes mellitus, is a disease in which the body does not produce, or properly use, insulin. Insulin is a hormone produced by the pancreas that allows glucose (sugar) to enter cells and provide the necessary energy for daily activities. When the pancreas doesn't produce enough insulin, or when muscle, fat, and liver cells don't properly respond to insulin, glucose builds up in the blood (hyperglycemia). This can be toxic to cells throughout the body. In addition, because the cells don’t have enough glucose to use for energy, they use an abnormal amount of fats for fuel (ketoacidosis) and may become undernourished.
There are 3 types of diabetes:
- Type 1 diabetes develops most often in children and young adults. The immune system destroys insulin-producing cells (beta cells) of the pancreas.
- Type 2 diabetes can develop at any age and is usually preventable. The cells of the body become resistant to insulin, and the pancreas can't produce enough insulin to override the resistance.
- Gestational diabetes develops in women during pregnancy. This condition occurs more often in African Americans, Native Americans, Hispanic Americans, and women with a family history of diabetes. It is also associated with obesity and inactivity.
Although the exact cause of diabetes is unknown, factors such as poor diet, obesity, and lack of exercise play important roles in developing type 2 diabetes.
Complications of all types of diabetes can include:
- Heart disease
- Heart attack
- High blood pressure
- Retinopathy (eye disease)
- Vision problems
- Kidney disease
- Neuropathy (nervous system disease)
- Foot and hand pain
- Inner-ear nerve damage, which causes balance problems
- Peripheral vascular disease
- Reduced muscle strength and physical function
- Kidney disease
- Skin problems, including sores, ulcers, and infections
- Cell death (necrosis), particularly in toes and feet
- Premature death
A related condition is called "prediabetes" or "insulin resistance." Blood sugar levels are normal or only moderately elevated and often are accompanied by elevated insulin levels, but have not yet reached the diabetic stage. With prediabetes, you have a greater risk not only for diabetes, but for heart attacks and strokes.
Signs and Symptoms
Signs and Symptoms
Signs of diabetes include:
- Slow-healing sores
- High blood pressure
- Frequent infections, such as gum or skin infections and vaginal or bladder infections
- Unexplained weight loss
Diabetes symptoms include:
- Increased thirst
- Frequent urination
- Constant or extreme hunger
- Tingling, burning, or numbness in feet and hands
- Blurred vision
- Pain in joints or muscles
- Cramping in the legs when walking
- Pain or limping with walking
- Chronic pain
The American Diabetes Association provides information on target blood glucose levels and other measurements.
How Is It Diagnosed?
Diabetes is diagnosed by a physician, based on a test of your blood glucose level. This test is often ordered by a physician when a person reports some of the signs and symptoms listed in the previous section, or has risk factors determined by a physician. If you are diagnosed with diabetes, a physical therapist can evaluate your symptoms and problems associated with the condition. A physical therapist will identify physical problems that can be helped with an individualized exercise program, and provide specialized treatments based on your needs and goals.
How Can a Physical Therapist Help?
Physical therapists help people with diabetes participate in safe, effective exercise programs to improve their ability to move, perform daily activities, reduce their pain, and possibly lower their blood glucose levels. Physical therapy treatments also can help people with diabetes heal any associated skin problems faster than they would without treatment.
Your physical therapist will examine your record of blood glucose levels, and will check your skin for wounds. Your physical therapist will conduct a complete assessment of your strength, flexibility, endurance, and balance, and use the results of the testing to design an individualized treatment program that addresses your problems and needs. Your treatment program can help improve your:
Motion. Your physical therapist will choose specific activities and treatments to help restore normal movement. These might begin with “passive” motions that the physical therapist performs for you to gently move your joints, and progress to “active” exercises and stretches that you do yourself.
Strength. Your physical therapist will choose and teach you the correct exercises and equipment to use to steadily and safely restore your strength.
Flexibility. Your physical therapist will determine if any muscles are tight, begin to help you gently stretch them, and teach you stretches that you can do yourself.
Endurance. Regaining your endurance is important. If you are suffering from weakness due to inactivity, your physical therapist will teach you exercises to improve endurance, so you can return to your normal activities.
Balance and coordination. Regaining your sense of balance is important in order to prevent falling. Your physical therapist will teach you exercises to improve your balance ability. Coordination is also essential for daily and work activities. Your physical therapist can teach you exercises and movements that restore your coordination.
Walking ability. Your physical therapist can improve your walking ability and comfort by adjusting and refitting your shoes, or by adding shoe inserts or orthotics that support your feet and ankles. Your physical therapist can teach you to use support equipment, such as walkers and canes, to help you walk safely.
Pain levels. Physical therapy treatment is a safe way to treat chronic pain. Your physical therapist may use different types of treatments and technologies, and choose the most effective and safe exercises for you to perform to control and reduce pain. If you have diabetic nerve pain (neuropathy), your physical therapist can teach you how to protect painful areas and make them less sensitive.
Blood glucose levels. Physical activity, such as prescribed exercise, can help lower your blood glucose levels. Your physical therapist can design a safe, individualized exercise program for you to help control and lower your blood glucose levels each day.
Healing of sores. Your physical therapist can apply different types of bandages, dressings, lotions, and treatments to help sores heal faster than they would on their own. Your physical therapist also may check your footwear for proper fit and overall condition, and teach you to perform daily foot and skin checks to prevent wounds, sores, and blisters. from developing.
Home exercise. Your physical therapist will teach you strengthening, stretching, and aerobic exercises to perform on your own at home. These exercises will be specific for your needs; if you do them as prescribed by your physical therapist, you can speed your recovery.
Ability to perform daily and work activities. Your physical therapist will discuss your activity goals with you and use them to set your recovery goals. Your treatment program will help you reach your goals in the safest, fastest, and most effective way possible.
Always talk with a physical therapist before you begin an exercise program that addresses your diabetes symptoms.
If Surgery Is Required
If a part of your body, such as your foot or lower leg, becomes too damaged by high blood glucose levels and the effects of diabetes requires amputation, your physical therapist can help you prepare for surgery and recover from it afterward. Your physical therapist can help you manage pain, heal faster, learn how to use any needed prosthetics, regain your walking ability, and get back to being physically active as soon as possible.
Can this Injury or Condition be Prevented?
Type 1 diabetes cannot be prevented because science has yet to determine its cause(s).
Type 2 diabetes can often be prevented by keeping one’s weight at a normal level in relation to one’s height, avoiding obesity by eating a healthy diet, and exercising regularly. A physical therapist can develop an individualized exercise plan to help prevent the development of type 2 diabetes, or the progression of prediabetes to diabetes.
Prediabetes can be reversed or kept from progressing to full diabetes by:
- Performing enough physical activity each week
- Eating a healthy diet (and being aware of and reducing sugar intake)
- Avoiding obesity or becoming overweight
The risk for gestational diabetes can be reduced by the same measures that can help prevent type 2 diabetes: eating healthy foods, staying active, and exercising regularly. Losing extra pounds prior to pregnancy is highly recommended.
The complications from diabetes, listed above, can be limited and prevented by controlling your blood glucose levels each day with good nutrition and daily exercise.
Sores on the feet can be prevented by daily foot and skin inspection, by wearing properly fitting shoes and orthotics, and by practicing good foot care that you can learn from your physical therapist.
Real Life Experiences
Scott is a 46-year-old bank teller who was recently diagnosed by his physician as having type 2 diabetes. Scott is obese, has not exercised since high school, and eats candy and drinks sodas every day. He has become too tired and weak to mow his lawn or walk his dog, and has several sores on his feet and toes that won’t heal. Scott’s physician prescribes medication, and refers him to a physical therapist.
Scott’s physical therapist tests his strength, flexibility, endurance, and balance. She finds weakness and tightness in his leg muscles, and notes that he severely lacks endurance when attempting to perform extended activity. She examines Scott’s feet and the sores that have developed on them. Scott reports that he is having difficulty walking up the stairs, and can no longer walk his dog.
Scott’s physical therapist creates an individualized treatment program for him that includes stretches, and strengthening and aerobic exercises. At each of his physical therapy sessions, she cleans and redresses his foot sores, using special ointments and bandages. She adjusts his insole orthotics, so they don’t cause friction on his toes. She designs and teaches Scott a home-exercise and skin-check program, so he can continue to improve at home. She also encourages Scott to meet with the dietician in his health care team to learn more about how food choices can affect diabetes.
Scott finds that he starts feeling better quickly when he’s exercising. His physical therapist notes that his blood glucose levels lower immediately after he exercises. He performs his home-exercise program and checks his skin every day, and, with the help of his dietician, changes his diet to lower his sugar intake and include more healthy foods and snacks. His physical therapist adjusts and increases his exercises based on his improvements.
Scott performs all the exercises in his home program, and, with the help of a dietician, works hard to stop eating candy and drinking sodas, and to add healthier foods to his diet. He checks his feet daily, wears his orthotics, and focuses on being active every day.
After his first month of physical therapy treatments, Scott is thrilled to report that he is able to climb a flight of stairs twice daily, and walk his dog twice a day for 10 minutes. He is happy to see that his foot sores have healed. He proudly reports that he has lost some weight, and doesn’t feel so tired anymore.
After more weeks of regular physical therapy and hard work at home, Scott has reached his goals for walking and stair-climbing. His blood glucose levels are reduced, and his physician has reduced his diabetes medication by half. Scott is discharged from physical therapy, and continues his home program daily.
Months later, Scott has lost another 15 pounds, and has joined his friends biking on an urban bike trail twice a week. Scott’s physician discontinues the diabetes medication, telling him he no longer needs it. Scott reports that he hasn’t felt this good in years.
Just this week, Scott joined a dog-walking club, and is looking forward to participating in the city’s annual Walk to Stop Diabetes next month!
What Kind of Physical Therapist Do I Need?
All physical therapists are prepared through education and experience to treat people who have diabetes or prediabetes.
You can find physical therapists who have these and other credentials by using Find a PT, the online tool built by the American Physical Therapy Association to help you search for physical therapists with specific clinical expertise in your geographic area.
General tips when you're looking for a physical therapist (or any other health care provider):
- Get recommendations from family and friends or from other health care providers.
- When you contact a physical therapy clinic for an appointment, ask about the physical therapists' experience in helping people with diabetes or prediabetes.
- During your first visit with the physical therapist, be prepared to describe your symptoms in as much detail as possible, and say what makes your symptoms worse.
The American Physical Therapy Association (APTA) believes that consumers should have access to information that could help them make health care decisions and also prepare them for their visit with their health care provider.
The following articles provide some of the best scientific evidence related to physical therapist management of diabetes. The articles report recent research and give an overview of the standards of practice for treatment of TMD both in the United States and internationally. The article titles are linked either to a PubMed abstract of the article or to free full text, so that you can read it or print out a copy to bring with you to your health care provider.
Tomas-Carus P, Ortega-Alonso A, Pietilainen KH et al. A randomized controlled trial on the effects of combined aerobic-resistance exercise on muscle strength and fatigue, glycemic control and health-related quality of life of type 2 diabetes patients. J Sports Med Phys Fitness. 2016;56(5):572–578. Article Summary on PubMed.
Alvarez C, Ramirez-Campillo R, Martinez-Salazar C, et al. Low-volume high-intensity interval training as a therapy for type 2 diabetes. Int J Sports Med. 2016;37(9):723–729. Article Summary on PubMed.
Liubaoerjijin Y, Terada T, Fletcher K, Boulé NG. Effect of aerobic exercise intensity on glycemic control in type 2 diabetes: a meta-analysis of head-to-head randomized trials. Acta Diabetol. 2016;53(5):769–781. Article Summary on PubMed.
Mendes GF, Nogueira JA, Reis CE, DE Meiners MM, Dullius J. Diabetes education program with emphasis on physical exercise promotes significant reduction in blood glucose, HbA1c and triglycerides in subjects with type 2 diabetes: a community-based quasi-experimental study. J Sports Med Phys Fitness. 2016 May 24 [Epub ahead of print]. Article Summary on PubMed.
Mottola MF, Artal R. Role of exercise in reducing gestational diabetes mellitus. Clin Obstet Gynecol. 2016;59(3):620–628. Article Summary on PubMed.
Kluding PM, Bareiss SK, Hastings M, Marcus RL, Sinacore DR, Mueller MJ. Physical training and activity in people with diabetic peripheral neuropathy: paradigm shift. Phys Ther. 2016 Jul 21 [Epub ahead of print]. Article Summary on PubMed.
Tsai YJ, Yang YC, Lu FH, Lee PY, Lee IT, Lin SI. Functional balance and its determinants in older people with diabetes. PLoS One. 2016;11(7):e0159339. Free Article.
Pinsker JE, Kraus A, Gianferante D, et al. Techniques for exercise preparation and management in adults with type 1 diabetes. Can J Diabetes. 2016;40(6):503–508. Article Summary on PubMed.
Kruse RL, Lemaster JW, Madsen RW. Fall and balance outcomes after an intervention to promote leg strength, balance, and walking in people with diabetic peripheral neuropathy: "feet first" randomized controlled trial. Phys Ther. 2010;90(11):1568–1579. Article Summary on PubMed.
Taylor JD, Fletcher JP, Tiarks J. Impact of physical therapist-directed exercise counseling combined with fitness center-based exercise training on muscular strength and exercise capacity in people with type 2 diabetes: a randomized clinical trial. Phys Ther. 2009;89(9):884–892. Free Article.
Ryan AS. Insulin resistance with aging: effects of diet and exercise. Sports Med. 2000;30(5):327–346. Article Summary on PubMed.
US Department of Health and Human Services. Centers for Disease Control and Prevention website. Accessed December 20, 2016.
American Diabetes Association. American Diabetes Association website. Accessed December 20, 2016.
Centers for Disease Control and Prevention
American Diabetes Association
* PubMed is a free online resource developed by the National Center for Biotechnology Information (NCBI). PubMed contains millions of citations to biomedical literature, including citations in the National Library of Medicine’s MEDLINE database.
Revised by Andrea Avruskin, PT, DPT, ATC. Reviewed by the editorial board.