Key result
Low-load resistance training with blood flow restriction shows no body composition benefit over high-load training.
Why the study?
Does low load resistance training with blood flow restriction improve body composition compared to high load resistance training in postmenopausal women?
RCT (n=18)
Open-label
Randomized for secret allocation
No
Does low load resistance training with blood flow restriction improve body composition compared to high load resistance training in postmenopausal women?
p-value: p=>0.05
Low load resistance training with blood flow restriction and high load resistance training are both ineffective in providing changes in body composition in physically active postmenopausal women over 16 weeks.
Both low- and high-load resistance training leave body composition unchanged in active postmenopausal women; confirms limited efficacy of either protocol over 16 weeks.
Objective:To evaluate the effect of low load resistance training with blood flow restriction (LLRT+BFR) on the body composition of postmenopausal women and to compare the results with the effects obtained from high load resistance training (HLRT). Methods:This is a randomized, open label, controlled trial with two parallel arms. Eighteen postmenopausal women (62,28±5,07years), physically active and functionally independent, were randomly allocated into two groups: LLRT+BFR (n=9) and HLRT (n=9). Body mass index (BMI), waist-hip ratio (WHR), appendicular muscle mass (AMM) and body fat percentage (BF%) were tested before, during and after 16 weeks of resistance training. The LLRT+BFR group performed four sets of 15 repetitions with 50% of the arterial occlusion pressure reduced to 50 mmHg in intervals between series with 30% of 1RM. The HLRT group performed three series of 10 repetitions with 70% of 1RM. Both groups performed the free squat exercise with bar twice a week. ANOVA of repeated measures with Bonferroni post hoc were used. Results:After 16 weeks, no significant differences (p>0,05) occurred in the body composition neither intra and nor between groups. Conclusion:Low load resistance training with blood flow restriction and high load is apparently ineffective in provide changes in body composition.
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Pereira et al. (2018) conducted an RCT in Postmenopausal women (n=18). Low load resistance training with blood flow restriction (LLRT+BFR) vs. High load resistance training (HLRT) with 70% of 1RM was evaluated on Body composition (BMI, waist-hip ratio, appendicular muscle mass, and body fat percentage) (p=>0.05). Low load resistance training with blood flow restriction did not significantly change body composition compared to high load resistance training in postmenopausal women after 16 weeks (p>0.05).
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