Effects of detraining after blood flow restricted low-intensity training on muscle size and strength in older adults
Effects of detraining after blood flow restricted low-intensity training on muscle size and strength in older adults
复制标题
血流限制低强度训练后停止训练对老年人肌肉大小和力量的影响
DOI：
10.1007/s40520-014-0208-0
复制
发表时间：
2014
影响因子：
4
通讯作者：
Nakajima T
中科院分区：
文献类型：
--
作者：
Yasuda T;Fukumura K;Sato Y;Yamasoba T;Nakajima T
背景虽然血流限制低强度阻力训练（BFR-RT）增加了老年人的肌肉大小和力量，但停止训练对肌肉适应性的影响尚不清楚。MethodsWe调查了24周停止训练对曾参加过12周训练的老年人大腿肌肉横截面积（CSA）和一次重复最大力量（1-RM）的影响结果BFR-RT组的1-RM和相对动态强度（1-RM除以股四头肌（QF）肌肉CSA）在训练后和停止训练时均高于训练前（p< 0.05）。QF肌肉CSA仅在训练后高于训练前的BFR-RT group.Conclusionincreased肌肉力量后12周的训练与BFR-RT在24周的停训，这主要是由于在老年人的神经适应保存完好。
BackgroundAlthough blood flow-restricted low-intensity resistance training (BFR-RT) increases muscle size and strength in older adults, the effect of detraining on muscle adaptation is unclear.MethodsWe investigated the effects of 24 weeks of detraining on thigh muscle cross-sectional area (CSA) and one-repetition maximum strength (1-RM) in older adults who had previously participated in 12 weeks of training (BFR-RT, 20–30 % 1-RM, knee extension and leg press) or non-BFR training.ResultsBoth 1-RM and relative dynamic strengths (1-RM divided by quadriceps femoris (QF) muscle CSA) were higher at both post-training and detraining than at pre-training for the BFR-RT group (p< 0.05). QF muscle CSA was higher at only post-training than at pre-training for the BFR-RT group (p< 0.01).ConclusionIncreased muscle strength following 12 weeks of training with BFR-RT was well preserved at 24 weeks of detraining, which is due mainly to neural adaptation in older adults.