Scientific research
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Topic- Exercise
Exercise restores function after knee replacement surgery
Total knee replacement surgery (called total knee arthroplasty or TKA) is performed when osteoarthritis in the knee impairs function. Although knee replacement improves function, people continue to have impaired quadriceps strength and function for activities such as walking and climbing stairs, which remain below those of healthy people of the same age.
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Strength training can relieve knee osteoarthritis
Osteoarthritis in the knee wears away the cushion of cartilage surrounding the joint and is a leading cause of disability, according to the American Academy of Orthaepedic Surgeons. While exercise and weight loss can help reduce pain and increase function, studies on the influence of quadriceps muscle strength on the knee have shown conflicting results, according to press information provided for a new study. The research team expanded the study parameters to include more areas of the knee joint than were covered in previous studies.
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Exercise for fall prevention: Who, me?
Exercise is part of a comprehensive falls management program because it has been effective in reducing the number of falls (ICAA Research Review, 8(43) December 2008). Yet, the authors of a new study point out, less than half of the people ages 40+ living in the United Kingdom achieve recommended levels of physical activity. What are the attitudes of younger older adults toward exercise as a method to prevent falling?
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Physical activity lower in women, yet it prevents cognitive decline
Older women (and men) generally have too little physical activity, but has that always been the case? According to two studies presented at the recent UK Society for Behavioural Medicine conference, beginning as girls, women are less physically active than men. Once they reach age 70 years or older, women are more likely to be less active than men and have lower levels of physical function. Another study shed light on the important role of physical activity in maintaining cognitive function.
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Physical activity regulates blood sugar, which supports cognitive health
Researchers are seeking to identify the underlying causes of dementia and Alzheimer’s disease. One research team discovered that too much blood glucose was associated with cognitive decline, and another team found that too little blood glucose and oxygen could lead to Alzheimer’s. In both cases, the lead investigators cited physical activity as a key prevention strategy.
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Imagination and technique increase physical activity
While many people in middle age probably know that exercise is good for them, they have trouble getting started. Are there techniques that can help them?
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