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Título
Improvements in Attention and Cardiac Autonomic Modulation After a 2-Weeks Sprint Interval Training Program: A Fidelity Approach
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Facultad/Centro
Área de conocimiento
Título de la revista
Frontiers in Physiology
Datos de la obra
De Sousa, A. F. M.; Medeiros, A. R.; Benitez-Flores, S.; Del Rosso, S.; Stults-Kolehmainen, M.; Boullosa Álvarez, D. A. (2018). Improvements in Attention and Cardiac Autonomic Modulation After a 2-Weeks Sprint Interval Training Program: A Fidelity Approach. Frontiers in Physiology, 9
Editor
Faculty of Kinesiology, University of Zagreb
Fecha
2018
Abstract
[EN] This study aimed to: (1) investigate the influence of a 2-weeks sprint interval training (SIT)
program on aerobic capacity, cardiac autonomic control, and components of attention
in young healthy university students; and (2) to ascertain whether training fidelity would
influence these adaptations. One hundred and nine participants were divided into an
experimental (EG) and control (CG) groups. The EG performed a SIT program that
consisted of 6 sessions of 4 × 30 s “all-out” efforts on a cycle ergometer, interspersed
with active rests of 4 min. The criterion for fidelity was achieving >90% of estimated
maximum heart rate (HR) during sprint bouts. After analyses, the EG was divided into
HIGH (n = 26) and LOW (n = 46) fidelity groups. Components of attention were assessed
using the Attention Network Test (ANT). Aerobic capacity (VO2max) was estimated while
the sum of skinfolds was determined. Autonomic control of HR was assessed by means
of HR variability (HRV) and HR complexity at rest and during ANT. Both HIGH and LOW
significantly increased aerobic capacity, vagal modulation before and during ANT, and
executive control, and decreased body fatness after SIT (p < 0.05). However, only
participants from HIGH showed an increase in HR complexity and accuracy in ANT
when compared to LOW (p < 0.05). Two weeks of SIT improved executive control, body
fatness, aerobic fitness, and autonomic control in university students with better results
reported in those individuals who exhibited high fidelity.
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