标题：Chronic Effects of Resistance Training with Blood Flow Restriction on Maximal Dynamic Strength and Flexibility at Different Phases of the Menstrual Cycle
摘要：The aim of the present study was to assess the chronic effects of resistance training (RT) with or without blood flow restriction (BFR) on maximal dynamic strength (MDS) and flexibility at different phases of the menstrual cycle (MC). Twenty-nine sedentary women were randomly divided into three groups: (a) HI = high-intensity resistance training at 80% of onerepetition maximum (1RM); (b) LL+BFR = low-load resistance training at 20% 1RM combined with BFR; and (c) CG = control group (no training performed). The biceps curl exercise was significantly increased between the follicular vs. ovulation phases in the HI and LL+BFR groups (P<0.05), between the follicular vs. luteal phases in the HI group (P<0.001), and between the ovulation vs. luteal phases in the LL+BFR group (P=0.009). The knee extension exercise was significantly increased between the follicular vs. ovulation, follicular vs. luteal, and ovulation vs. luteal phases in the HI and LL+BFR groups (all P<0.001). No differences occurred between the groups in either exercise (P>0.05). The flexibility analysis showed that no significant intra-and inter-group differences occurred (P>0.05). Resistance training combined with BFR appears to progressively increase upper and lower limb MDS between phases of the MC, although it is not effective for increasing flexibility.
