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 before and after exercise does not further augment skeletal muscle hypertrophy after resistance training in elderly men.
BACKGROUND Considerable discrepancy exists in the literature on the proposed benefits of protein supplementation on the adaptive response of skeletal muscle to resistance-type exercise training in the elderly . OBJECTIVE The objective was to assess the benefits of timed protein supplementation on the increase in muscle mass and strength during prolonged resistance-type exercise training in healthy elderly men who habitually consume adequate amounts of dietary protein . DESIGN Healthy elderly men ( n = 26 ) aged 72 + /- 2 y were r and omly assigned to a progressive , 12-wk resistance-type exercise training program with ( protein group ) or without ( placebo group ) protein provided before and immediately after each exercise session ( 3 sessions/wk , 20 g protein/session ) . One-repetition maximum ( 1RM ) tests were performed regularly to ensure a progressive workload during the intervention . Muscle hypertrophy was assessed at the whole-body ( dual-energy X-ray absorptiometry ) , limb ( computed tomography ) , and muscle fiber ( biopsy ) level . RESULTS The 1RM strength increased approximately 25 - 35 % in both groups ( P < 0.001 ) . Dual-energy X-ray absorptiometry and computed tomography scans showed similar increases in leg muscle mass ( 6 + /- 1 % in both groups ; P < 0.001 ) and in the quadriceps ( 9 + /- 1 % in both groups ) , from 75.9 + /- 3.7 and 73.8 + /- 3.2 to 82.4 + /- 3.9 and 80.0 + /- 3.0 cm2 in the placebo and protein groups , respectively ( P < 0.001 ) . Muscle fiber hypertrophy was greater in type II ( placebo : 28 + /- 6 % ; protein : 29 + /- 4 % ) than in type I ( placebo : 5 + /- 4 % ; protein : 13 + /- 6 % ) fibers , but the difference between groups was not significant . CONCLUSION Timed protein supplementation immediately before and after exercise does not further augment the increase in skeletal muscle mass and strength after prolonged resistance-type exercise training in healthy elderly men who habitually consume adequate amounts of dietary protein . This trial was registered at clinical trials.gov as NCT00744094
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 .