Results indicate that physical exercise has a positive impact on muscle mass and muscle function in subjects aged 65 years and older .
Conclusion Physical exercise has a positive impact on muscle mass and muscle function in healthy subjects aged 60 years and older .
The biggest effect of exercise intervention , of any type , has been seen on physical performance ( gait speed , chair rising test , balance , SPPB test , etc . )
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We observed huge variations in regard to the dietary supplementation protocol s. Based on the included studies , mainly performed on well-nourished subjects , the interactive effect of dietary supplementation on muscle function appears limited
Summary This systematic review summarizes the effect of combined exercise and nutrition intervention on muscle mass and muscle function .
However , any interactive effect of dietary supplementation appears to be limited .
Introduction In 2013 , Denison et al. conducted a systematic review including 17 r and omized controlled trials ( RCTs ) to explore the effect of combined exercise and nutrition intervention to improve muscle mass , muscle strength , or physical performance in older people .
They concluded that further studies were needed to provide evidence upon which public health and clinical recommendations could be based .
The purpose of the present work was to up date the prior systematic review and include studies published up to October 2015 .
Protein supplementation increases muscle mass gain during prolonged resistance-type exercise training in frail elderly people: a randomized, double-blind, placebo-controlled trial.
OBJECTIVES Protein supplementation has been proposed as an effective dietary strategy to augment the skeletal muscle adaptive response to prolonged resistance-type exercise training in elderly people . Our objective was to assess the impact of protein supplementation on muscle mass , strength , and physical performance during prolonged resistance-type exercise training in frail elderly men and women . DESIGN / SETTING / PARTICIPANTS A r and omized , double-blind , placebo-controlled trial with 2 arms in parallel among 62 frail elderly subjects ( 78 ± 1 year ) . These elderly subjects participated in a progressive resistance-type exercise training program ( 2 sessions per week for 24 weeks ) during which they were supplemented twice daily with either protein ( 2 * 15 g ) or a placebo .  MEASUREMENTS Lean body mass ( DXA ) , strength ( 1-RM ) , and physical performance ( SPPB ) were assessed at baseline , and after 12 and 24 weeks of intervention . RESULTS Lean body mass increased from 47.2 kg ( 95 % CI , 43.5 - 50.9 ) to 48.5 kg ( 95 % CI , 44.8 - 52.1 ) in the protein group and did not change in the placebo group ( from 45.7 kg , 95 % CI , 42.1 - 49.2 to 45.4 kg , 95 % CI , 41.8 - 48.9 ) following the intervention ( P value for treatment × time interaction = .006 ) . Strength and physical performance improved significantly in both groups ( P = .000 ) with no interaction effect of dietary protein supplementation . CONCLUSIONS Prolonged resistance-type exercise training represents an effective strategy to improve strength and physical performance in frail elderly people  . Dietary protein supplementation is required to allow muscle mass gain during exercise training in frail elderly people . TRIAL REGISTRATION clinical trials.gov identifier : NCT01110369
Results indicate that physical exercise has a positive impact on muscle mass and muscle function in subjects aged 65 years and older .
Conclusion Physical exercise has a positive impact on muscle mass and muscle function in healthy subjects aged 60 years and older .
The biggest effect of exercise intervention , of any type , has been seen on physical performance ( gait speed , chair rising test , balance , SPPB test , etc . )
.
We observed huge variations in regard to the dietary supplementation protocol s. Based on the included studies , mainly performed on well-nourished subjects , the interactive effect of dietary supplementation on muscle function appears limited
Summary This systematic review summarizes the effect of combined exercise and nutrition intervention on muscle mass and muscle function .
However , any interactive effect of dietary supplementation appears to be limited .
Introduction In 2013 , Denison et al. conducted a systematic review including 17 r and omized controlled trials ( RCTs ) to explore the effect of combined exercise and nutrition intervention to improve muscle mass , muscle strength , or physical performance in older people .
They concluded that further studies were needed to provide evidence upon which public health and clinical recommendations could be based .
The purpose of the present work was to up date the prior systematic review and include studies published up to October 2015 .