In conclusion , we observed no improvement in muscle strength after the administration of vitamin D with or without calcium supplements .
We did find a small but significant deterioration of mobility .
BACKGROUND It has been suggested that vitamin D status or supplementation is important for maintaining or improving muscle strength and mobility in older adults .
The study results , however , do not provide consistent results .
We therefore aim ed to summarise the available evidence systematic ally , including only studies conducted in community-dwelling older persons .
Muscle architecture and strength: adaptations to short-term resistance training in older adults.
INTRODUCTION Muscle morphology and architecture changes in response to 6 weeks of progressive resistance training were examined in healthy older adults . METHODS In this r and omized , controlled design , muscle strength , quality , and architecture were evaluated with knee extension , DEXA , and ultrasound , respectively , in 25 older adults . RESULTS Resistance training result ed in significant increases in strength and muscle quality of 32 % and 31 % , respectively . Cross-sectional area of the vastus lateralis increased by 7.4 % ( p ≤ 0.05 ) . Physiological cross-sectional area ( PCSA ) of the thigh , a composite measure of muscle architecture , was related significantly to strength ( r = 0.57 ; p ≤ 0.01 ) and demonstrated a significant interaction after training ( p ≤ 0.05 ) . Change in PCSA of the vastus lateralis was associated with change in strength independent of any other measure . CONCLUSIONS Six weeks of resistance training was effective at increasing strength , muscle quality , and muscle morphology in older adult men and women
In conclusion , we observed no improvement in muscle strength after the administration of vitamin D with or without calcium supplements .
We did find a small but significant deterioration of mobility .
BACKGROUND It has been suggested that vitamin D status or supplementation is important for maintaining or improving muscle strength and mobility in older adults .
The study results , however , do not provide consistent results .
We therefore aim ed to summarise the available evidence systematic ally , including only studies conducted in community-dwelling older persons .