Effects of 5 week low-intensity blood flow restriction resistance exercise and moderate-intensity resistance exercise on body composition and blood lipids in normal weight obese women

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Abstract

PURPOSE: The primary objective of this study was to investigate and compare the effects of 5 weeks resistance training protocols (i.e., low-load blood flow restriction resistance training and moderate-load resistance training) especially on blood lipids, muscle strength, anaerobic power and body composition in young normal weight obese women. METHODS: Twenty-nine young normal weight obese women were randomly divided into three groups: blood flow restriction resistance training (BFR-RT, n=9), resistance training (RT, n=10) and non-training control (CON, n=10). BFR-RT group fitted a pneumatic cuff over the upper and lower extremities by using Kaatsu Nano equipment to apply the same pressures with each systolic blood pres-sure. The subjects in the BFR-RT group performed the training with 40% of 1RM and the RT group executed the resistance training with their 60-70% of 1RM. Both groups had performed the resistance training protocols twice per week for 5 weeks, and each training protocol consisted of bench press, barbell row, squat, and lunge. RESULTS: There were no changes in body weight, fat mass, BMI and %body fat in all groups after interventions for 5 weeks. However, the anaerobic power was significantly increased in both BFR-RT and RT groups compared to the CON group. Interestingly, only in the RT group, muscle mass and high-density lipoprotein cholesterol were significantly increased after the intervention. CONCLUSIONS: In conclusion, this study suggests that moderate-intensity RT is better than low-intensity BFR-RT to improve muscle mass and high-density lipoprotein cholesterol in young normal weight obese women.

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Kim, N., Lee, D., & Lee, S. (2021). Effects of 5 week low-intensity blood flow restriction resistance exercise and moderate-intensity resistance exercise on body composition and blood lipids in normal weight obese women. Exercise Science, 30(1), 70–79. https://doi.org/10.15857/ksep.2021.30.1.70

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