Key result
Aerobic exercise with blood flow restriction resulted in significantly greater energy expenditure than volume-matched aerobic exercise and similar EPOC to high-intensity aerobic exercise.
Why the study?
The study compared the effects of aerobic exercise with and without blood flow restriction to high-intensity aerobic exercise on energy expenditure, excess postexercise oxygen consumption, and respiratory exchange ratio during and after exercise.
Does aerobic exercise with blood flow restriction increase energy expenditure and excess postexercise oxygen consumption compared to standard aerobic exercise in recreationally active males?
RCT (n=22)
Randomized
Does aerobic exercise with blood flow restriction increase energy expenditure and excess postexercise oxygen consumption compared to standard aerobic exercise in recreationally active males?
p-value: p=<0.05
Aerobic exercise with blood flow restriction increases energy expenditure compared to volume-matched standard aerobic exercise and achieves similar excess postexercise oxygen consumption as high-intensity aerobic exercise.
May augment energy expenditure during moderate aerobic exercise; hypothesis-generating for clinical outcomes pending randomized trials.
We compared the effects of aerobic exercise with and without blood flow restriction (BFR) to high-intensity aerobic exercise on energy expenditure (EE), excess Postexercise oxygen consumption (EPOC), and respiratory exchange ratio (RER) during and after exercise. Twenty-two recreationally active males randomly completed the following experimental conditions: AE-aerobic exercise without BFR, AE + BFR-aerobic exercise with BFR, HIAE-high-intensity aerobic exercise, CON-non-exercise control condition. EE was significantly (p < 0.05) greater during exercise for HIAE compared to all conditions, and for AE + BFR compared to AE and CON during and postexercise exercise. There were no significant (p > 0.05) differences in EPOC between HIAE and AE + BFR at any time point, however, both conditions were significantly (p < 0.05) greater than the AE (d = 1.50 and d = 1.03, respectively) and CON at the first 10 min postexercise. RER during exercise for HIAE was significantly (p < 0.05) greater than AE + BFR at the first 6 min of exercise (p = 0.003, d = 0.88), however, no significant differences were observed from 9 min up to the end of the exercise. HIAE was also significantly (p < 0.05) greater than AE and CON at all time points during exercise, whereas, AE + BFR was significantly (p < 0.05) greater than CON at all time points but not significantly (p < 0.05) different than AE (p < 0.05); although the overall session RER was significantly (p < 0.05) greater during AE + BFR than AE. Altogether, continuous AE + BFR results in greater EE compared to volume matched AE, as well as a similar EPOC compared to HIAE.
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Silva et al. (2022) conducted an RCT in Recreationally active (n=22). Aerobic exercise with blood flow restriction (AE + BFR) vs. Aerobic exercise without BFR, high-intensity aerobic exercise, and non-exercise control was evaluated on Energy expenditure, excess postexercise oxygen consumption, and respiratory exchange ratio (p=<0.05). Aerobic exercise with blood flow restriction resulted in significantly greater energy expenditure than volume-matched aerobic exercise and similar EPOC to high-intensity aerobic exercise.
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