Key result
Low-intensity resistance training with mild blood flow restriction increased muscle mass more than high-intensity and low-intensity training without restriction (6% vs 2% and -1%, p<0.05).
Why the study?
The study evaluated changes in muscle mass, strength, vascular function, oxidative stress, and inflammatory biomarkers in older adults across different resistance training intensities with or without blood flow restriction.
Does low-intensity resistance training with blood flow restriction improve muscle strength, mass, and vascular function in older adults compared to resistance training without blood flow restriction?
Population
Thirty-two untrained individuals (72±7 y)
Comparison
RT-CON vs RT-BFR vs RT-HI
Design
Randomized trial
Follow-up
12-week
Authors
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Low-intensity BFR RT may safely increase strength and mass in older adults; leaves open efficacy versus high-intensity training in larger trials.
RCT (n=32)
randomized
Does low-intensity resistance training with blood flow restriction improve muscle strength, mass, and vascular function in older adults compared to resistance training without blood flow restriction?
Absolute Event Rate: 6% vs -1%
p-value: p=< 0.05
Low-intensity resistance training with mild blood flow restriction improves muscle strength and mass while preserving vascular function in older adults, offering an alternative for those intolerant to high loads.
Lopes et al. (2022) conducted an RCT in untrained older adults (n=32). Low-intensity resistance training with mild blood flow restriction (RT-BFR) vs. Low-intensity without BFR (RT-CON) and high-intensity without BFR (RT-HI) was evaluated on Increase in muscle mass (p=< 0.05). Low-intensity resistance training with mild blood flow restriction increased muscle mass more than high-intensity and low-intensity training without restriction (6% vs 2% and -1%, p<0.05).
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