Jyotpal Singh, Chase J Ellingson, Cody A Ellingson, Parker Scott, J Patrick Neary
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Cardiac cycle timing and contractility following acute sport-related concussion.
Cardiac sequelae following sport-related concussion are not well understood. This study describes changes in the cardiac cycle timing intervals and contractility parameters during the acute phase of concussion. Twelve athletes (21 ± 2 years, height = 182 ± 9 cm, mass = 86 ± 15 kg, BMI = 26 ± 3 kg/m2) were assessed within 5 days of sustaining a diagnosed concussion against their own pre-season baseline. A non-invasive cardiac sensor (LLA RecordisTM) was used to record the cardiac cycle parameters of the heart for 1 minute during supine rest. Cardiac cycle timing intervals (Isovolumic relaxation and contraction time, Mitral valve open to E wave, Rapid ejection period, Atrial systole to mitral valve closure, Systole, and Diastole) and contractile forces (Twist force and Atrial systole: AS) were compared. Systolic time significantly decreased during acute concussion (p = 0.034). Magnitude of AS significantly increased during acute concussion (p = 0.013). These results imply that concussion can result in altered systolic function.
期刊介绍:
Research in Sports Medicine is a broad journal that aims to bridge the gap between all professionals in the fields of sports medicine. The journal serves an international audience and is of interest to professionals worldwide. The journal covers major aspects of sports medicine and sports science - prevention, management, and rehabilitation of sports, exercise and physical activity related injuries. The journal publishes original research utilizing a wide range of techniques and approaches, reviews, commentaries and short communications.