Influence of Recovery Posture on Blood Pressure and Heart Rate After Resistance Exercises in Normotensive Subjects
- Autores: Paulo de Tarso Veras Farinatti, Fábio Yuzo Nakamura, Marcos Doederlein Polito
- Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 23, Nº. 9, 2009, págs. 2487-2492
- Idioma: inglés
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Resumen
This study investigated the effects of body posture on systolic (SBP) and diastolic (DBP) blood pressure, mean arterial pressure (MAP), and heart rate (HR) after a session of resistance exercises. Twelve normotensive men were randomly assigned to either a control group (CG) or exercise group (EG). The EG performed 4 sets of 10 lifts at 80% of repetition maximum (10RM) using 4 different exercises. The BP and HR were assessed on different days in seated and supine postures at rest and at 10-minute intervals during 30 minutes of postexercise recovery. Except for DBP, a 3-way ANOVA revealed that postexercise SBP in EG was always lower than at rest during seated (minimum of 109.5 ± 1.4 mm Hg at 10 min vs. 119.2 ± 3.4 mm Hg at rest; p < 0.01) and supine recovery (minimum of 112.7 ± 3.0 mm Hg at 20 min vs. 118.4 ± 1.7 mm Hg at rest; p < 0.05). The MAP during recovery in the seated posture was lower than at rest (minimum 83.3 ± 2.6 mm Hg at 30 min vs. 89.3 ± 0.9 mm Hg at rest; p < 0.05), whereas in the supine posture, no difference was identified (minimum 83.6 ± 1.9 mm Hg at 10 min vs. 87.1 ± 1.8 mm Hg at rest; p > 0.05). The HR at 10 minutes (82.0 ± 4.8 bpm; p < 0.01), 20 minutes ([83.7 ± 6.3 bpm; p < 0.05), and 30 minutes (80.5 ± 6.2 bpm; p < 0.01) of recovery during the seated posture was higher than at rest (71.5 ± 2.1 bpm). In contrast, in the supine posture, HR was higher than at rest (66.8 ± 3.7 bpm; p < 0.01) throughout 10 minutes (79.7 ± 5.3 bpm) and 20 minutes of recovery (74.5 ± 4.2 bpm). In conclusion, the postexercise hypotensive response can be affected by posture during BP assessment.
