07.10.2022 | Original Article
Mixed circuit training acutely reduces arterial stiffness in patients with chronic stroke: a crossover randomized controlled trial
verfasst von:
André C. Michalski, Arthur S. Ferreira, Adrian W. Midgley, Victor A. B. Costa, Guilherme F. Fonseca, Nádia S. L. da Silva, Juliana Borges, Sandra A. Billinger, Felipe A. Cunha
Erschienen in:
European Journal of Applied Physiology
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Ausgabe 1/2023
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Abstract
Purpose
Investigate whether a single bout of mixed circuit training (MCT) can elicit changes in arterial stiffness in patients with chronic stroke. Second, to assess the between-day reproducibility of post-MCT arterial stiffness measurements.
Methods
Seven participants (58 ± 12 years) performed a non-exercise control session (CTL) and two bouts of MCT on separate days in a randomized counterbalanced order. The MCT involved 3 sets of 15 repetition maximum for 10 exercises, with each set separated by 45-s of walking. Brachial-radial pulse wave velocity (br-PWV), radial artery compliance (AC) and reflection index (RI1,2) were assessed 10 min before and 60 min after CTL and MCT. Ambulatory arterial stiffness index (AASI) was calculated from 24-h recovery ambulatory blood pressure monitoring.
Results
Compared to CTL, after 60 min of recovery from the 1st and 2nd bouts of MCT, lower values were observed for br-PWV (mean diff = − 3.9 and − 3.7 m/s, respectively, P < 0.01; ICC2,1 = 0.75) and RI1,2 (mean diff = − 16.1 and − 16.0%, respectively, P < 0.05; ICC2,1 = 0.83) concomitant with higher AC (mean diff = 1.2 and 1.0 × 10–6 cm5/dyna, respectively, P < 0.01; ICC2,1 = 0.40). The 24-h AASI was reduced after bouts of MCT vs. CTL (1st and 2nd bouts of MCT vs. CTL: mean diff = − 0.32 and − 0.29 units, respectively, P < 0.001; ICC2,1 = 0.64).
Conclusion
A single bout of MCT reduces arterial stiffness during laboratory (60 min) and ambulatory (24 h) recovery phases in patients with chronic stroke with moderate-to-high reproducibility.
Trial registration: Ensaiosclinicos.gov.br identifier RBR-5dn5zd.