Increased muscle size following 12 weeks of elastic band blood flow-restricted training was well maintained (6.9% above pre-training levels) after 12 weeks of detraining in older women.
RCT (n=14)
Open-label
Randomly divided
No
Does blood flow-restricted low-load elastic band training improve muscle size, strength, and arterial stiffness in older women, and are these effects maintained after detraining?
Increased muscle strength and size following 12 weeks of elastic band BFR training are partially maintained after 12 weeks of detraining in older women, without negatively affecting arterial stiffness.
p-value: p=<0.01
BACKGROUND: We examined the effects of detraining after blood flow-restricted (BFR) low-load elastic band training on muscle size and arterial stiffness in older women. FINDINGS: Fourteen women were divided into BFR training (BFR-T) or non-BFR training (CON-T). Each group participated in 12 weeks of arm curl and press down training using an elastic band either with (BFR-T) or without BFR (CON-T). Muscle cross-sectional area (CSA) and maximum voluntary isometric contraction (MVIC) for upper arms and cardio-ankle vascular index (CAVI) were evaluated before and after the 12-week training period and also after 12 weeks of detraining. CSA and MVIC were higher at post and detraining (CSA: 16.3% (p 0.05) for elbow extension; MVIC: 7.3 and 3.9% (both p > 0.05) for elbow flexion and 17.6 and 15.1% (both p < 0.01) for elbow extension) than at pre for the BFR-T, but not for the CON-T. There was no change in CAVI for the two groups. CONCLUSIONS: Increased muscle strength/size following 12 weeks of elastic band BFR-T was well maintained with a low risk of arterial stiffness after 12 weeks of detraining in older women.
Yasuda et al. (Tue,) conducted a rct in Sarcopenia (untrained older women) (n=14). Blood flow-restricted (BFR) low-load elastic band training vs. Non-BFR low-load elastic band training was evaluated on Muscle cross-sectional area (CSA) for elbow flexion after 12 weeks of detraining compared to pre-training (p=<0.01). Increased muscle size following 12 weeks of elastic band blood flow-restricted training was well maintained (6.9% above pre-training levels) after 12 weeks of detraining in older women.