Ítem
Acceso Abierto

Effect of Moderate Versus High-Intensity Interval Exercise Training on Heart Rate Variability Parameters in Inactive Latin-American Adults: A Randomised Clinical Trial

Título de la revista
Autores
Téllez Tinjaca, Luis Andrés
Tordecilla Sanders, María Alejandra
Camelo Prieto, Diana
Hernandez Quiñonez, Paula Andrea
Correa Bautista, Jorge Enrique
Ramirez Campillo, Rodrigo
Izquierdo, Mikel

Archivos
Fecha
2017-03-18

Directores
Ramírez-Vélez, Robinson
Correa Bautista, Jorge Enrique

ISSN de la revista
Título del volumen
Editor
Universidad del Rosario

Buscar en:

Métricas alternativas

Resumen
Abstract
We investigated the effect of moderate versus high-intensity interval exercise training on the HRV indices in physically inactive adults. Twenty inactive adults were randomly allocated to receive either moderate intensity training (MCT group) or high-intensity interval training (HIT group). The MCT group performed aerobic training at an intensity of 55-75%, which consisted of walking on a treadmill at 60-80% of the maximum heart rate (HRmax) until the expenditure of 300 kcal. The HIT group ran on a treadmill for 4 minutes at 85-95% peak HRmax and had a recovery of 4 minutes at 65% peak HRmax until the expenditure of 300 kcal. Supine resting HRV indices (time domain: SDNN, standard deviation of normal-to-normal intervals; rMSSD, Root mean square successive difference of RR intervals and frequency domain: HFLn, high-frequency spectral power; LF, low-frequency spectral power and HF/LF ratio) were measured at baseline and 12 weeks thereafter. The SDNN changes were 3.4 (8.9) ms in the MCT group and 29.1 (7.6) ms in the HIT group (difference between groups 32.6 [95% CI, 24.9 to 40.4 (P = 0.01)]. The LF/HFLn ratio change 0.19 (0.03) ms in the MCT group and 0.13 (0.01) ms in the HIT group (P between groups = 0.016). No significant group differences were observed for the rMSSD, HF and LF parameters. In inactive adults, this study showed that a 12-week HIT training program could increase short-term HRV, mostly in vagally mediated indices such as SDNN and HF/LFLn ratio power.
Palabras clave
Randomized controlled trial , Exercise training , Autonomic nervous system , Cardiac autonomic control , Intensity
Keywords
Buscar en:
Enlace a la fuente