Effect Of Exercise And High Protein Diet On Older Women

In older women, when a high protein diet is combined with exercise, no changes in body composition, muscle strength, or LEPF were seen

A study was conducted to determine the efficacy of a high protein diet with or without exercise to improve muscle strength, body composition, and lower extremity physical function (LEPF) in older inactive overweight/obese women after weight loss.

The research conducted by Evans and colleagues is published in the journal American College of Sports Medicine

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‘Obesity has a negative effect on the lower extremity physical function (LEPF) in older women. When a high protein diet is combined with exercise, no changes in body composition, muscle strength, or LEPF were seen.’
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Obesity has a negative effect on the lower extremity physical function (LEPF) in older adults. Exercise and a high protein diet can positively and independently affect body composition, muscle strength, and LEPF during weight loss. In older women, the potential interactive effects have not been well characterized.

For the study, postmenopausal women were enrolled for a duration of a 6-month to weight loss program after randomization to three groups. The groups consisted of

High protein diet
High protein diet plus exercise
Conventional protein control diet plus exercise

Exercise was performed under supervision, three sessions per week and had components like aerobic, balance, muscle strengthening, and flexibility. The leg strength was determined by isokinetic dynamometry, body composition by dual-energy x-ray absorptiometry, and LEPF by a 6-min walk, 8-ft up and go, and 30-s chair stand tests.

During weight loss, exercise is important to preserve strength and enhance LEPF. However, when a high protein diet is combined with multicomponent exercise, no influence on body composition, muscle strength, or LEPF were seen.

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