Mehdi Ahmadian1, Valiollah Dabidi Roshan2, Mahdi Hosseinzadeh3. 1. Department of Sport Physiology, College of Physical Education and Sport Sciences, University of Mazandaran, Pasdaran Street, 47415, P.O. Box: 416, Babolsar, Iran. m_ahmadian98@yahoo.com. 2. Department of Sport Physiology, College of Physical Education and Sport Sciences, University of Mazandaran, Pasdaran Street, 47415, P.O. Box: 416, Babolsar, Iran. 3. Department of Health Science and Technology, Faculty of Medicine, Center for Sensory-Motor Interaction (SMI), Aalborg University, Fredrik Bajers vej 7 D-3, 9220, Aalborg, Denmark.
Abstract
PURPOSE: This study examined the effect of various modes of exercise on parasympathetic reactivation in children. METHODS: Twelve healthy boys volunteered for this study. Time domain measurement of heart rate variability in 5 and 10 min and heart rate recovery (HRR) in 1 (HRR1) and 2 min (HRR2) were measured during recovery after incremental exercise tests by a 12-lead ECG. Incremental exercise tests were performed using either upper (arm cranking) or lower body (cycling) ergometers. RESULTS: The amounts of increase in RMSSD and PNN50 in 5 and 10 min of recovery were higher in arm cranking compared to cycling. HRR1 and HRR2 were significantly higher after arm cranking compared to cycling. CONCLUSIONS: These results suggest that parasympathetic reactivation is likely greater following exercises that use smaller muscle mass (arm cranking) rather than larger muscle mass (cycling) in healthy boys.
PURPOSE: This study examined the effect of various modes of exercise on parasympathetic reactivation in children. METHODS: Twelve healthy boys volunteered for this study. Time domain measurement of heart rate variability in 5 and 10 min and heart rate recovery (HRR) in 1 (HRR1) and 2 min (HRR2) were measured during recovery after incremental exercise tests by a 12-lead ECG. Incremental exercise tests were performed using either upper (arm cranking) or lower body (cycling) ergometers. RESULTS: The amounts of increase in RMSSD and PNN50 in 5 and 10 min of recovery were higher in arm cranking compared to cycling. HRR1 and HRR2 were significantly higher after arm cranking compared to cycling. CONCLUSIONS: These results suggest that parasympathetic reactivation is likely greater following exercises that use smaller muscle mass (arm cranking) rather than larger muscle mass (cycling) in healthy boys.
Authors: R González-Camarena; S Carrasco-Sosa; R Román-Ramos; M J Gaitán-González; V Medina-Bañuelos; J Azpiroz-Leehan Journal: Med Sci Sports Exerc Date: 2000-10 Impact factor: 5.411
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