The Influence of Ski Type on Muscle Activity, Performance, and Self-Efficacy in Young Alpine Ski Racers
作者机构：Movement Science LaboratoryMontana State UniversityBozemanMT 59717USA Squaw Valley Ski TeamOlympic ValleyCAUSA University of DenverDenverCOUSA Department of Sport and Exercise ScienceUniversity of SalzburgHallein-RifAustria Athletes Performance CenterRed Bull SportsSalzburgAustria
出 版 物：《Journal of Science in Sport and Exercise》 (体育运动科学（英文）)
年 卷 期：2021年第3卷第3期
页 面：312-319页
主 题：Alpine skiing Electromyography Ski type Confidence
摘 要：Wide skis are the most popular ski sold in the United States and are skied routinely in all types of terrain,especially by young *** study investigated the influence of slalom(SL,64 mm underfoot width)and wide skis(WS,97.7 mm underfoot width)on perceptual responses,timed performance,edge inclination angles,and EMG in young alpine ski *** subjects,mean age 12.8±0.5 years,completed one run on each of two courses which were set to approximate the different turning radii of each *** completed a Likert-type questionnaire to assess components of self-efficacy after each *** activity was recorded on the gluteus medius(GM),vastus lateralis,tibialis anterior and peroneus longus(PL).Per-ceptions of confidence,aggressiveness,speed,and skiing on line were significantly greater,by about 31%,for SL than WS regardless of *** times were significantly less by 4% for SL than WS,peak edge inclination angle was 7%greater for SL than WS,and PL activity was 40% less for SL compared to *** racers are developing skills to improve their racing techniques and are still forming technique strategies to deal with the many factors present in skiing which may disrupt learning *** lower perceptual and performance responses on WS,young ski racers who ski on groomed snow with WS could be interfering with the adaptation of fundamental racing technique at a critical time in their development.
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