Key result
Resistance training to failure acutely raises blood pressure and arterial stiffness more than low-effort training.
Why the study?
The cardiovascular response to resistance training is influenced by variables like intensity and volume, but the effects of training sessions differing in level of effort on blood pressure and arterial stiffness needed evaluation.
Does resistance training to failure compared to submaximal effort increase blood pressure and arterial stiffness in young healthy men?
Does resistance training to failure compared to submaximal effort increase blood pressure and arterial stiffness in young healthy men?
Effect estimate: ES >0.20
p-value: p=0.012
Resistance training to failure causes greater acute increases in blood pressure and arterial stiffness compared to submaximal effort in young healthy men.
High-effort failure training may acutely elevate hemodynamic stress; leaves open effects on training prescriptions in clinical populations.
BACKGROUND: The cardiovascular response to resistance training is influenced by different variables such as intensity and volume. OBJECTIVE: To compare the effects of resistance training sessions differing in level of effort on blood pressure and arterial stiffness. METHODS: Thirty-two men performed 3 sets at 75% of 1-RM during the bench press and squat exercises to failure ([Formula: see text] 16; high-effort group), or performing half of the maximum possible number of repetitions per set ([Formula: see text] 16; low-effort group). Blood pressure (systolic blood pressure [SBP], diastolic blood pressure [DBP], and mean arterial pressure [MAP]) and arterial stiffness (pulse wave velocity [PWV]) were measured before training (Pre), immediately after training (Post 1), 5 minutes after training (Post 2), and 24 hours after training (Post 3). RESULTS: A main effect of time ([Formula: see text] 0.012) was observed for all variables due to higher values at Post 1 compared to Post 2 (effect size [ES] range: 0.34–1.37) and Post 3 (ES range: 0.37–0.92). When compared to Pre, increases higher than a ES of 0.20 were observed for the high-effort group compared to the low-effort group at all time points. CONCLUSIONS: Training to failure should be discouraged to avoid acute increases in blood pressure and arterial stiffness.
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Rodríguez‐Pérez et al. (2020) studied Healthy (n=32). High-effort resistance training (to failure) vs. Low-effort resistance training (half of maximum possible repetitions) was evaluated on Blood pressure (SBP, DBP, MAP) and arterial stiffness (PWV) (ES >0.20, p=0.012). High-effort resistance training to failure caused greater acute increases in blood pressure and arterial stiffness compared to low-effort training (effect size >0.20).
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