An Experimental Study on "Skilanglauf"
“Skilanglauf”的实验研究
基本信息
- 批准号:63580082
- 负责人:
- 金额:$ 1.15万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1988
- 资助国家:日本
- 起止时间:1988 至 1989
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The purpose of this study was to obtain fundamental information about the prescription of cross-country skiing as an exercise which is effective in improving the health and fitness of people living in snowy regions. A total of 20 healthy beginning and intermediate skiers were selected as subjects in experiments to examine: (1) the relationship between stride characteristics and the physiological responses, (2) the changes in these parameters caused by training, and (3) biomechanical characteristics of stride techniques of beginners. The results were summarized as follows:1. From the aspect of oxygen uptake, this study confirmed the hypothesis that a stride technique engendering longer stride length and lower stride rate is more advantageous than a stride technique with a shorter stride length and higher stride rate. At the same rate of speed this applies to beginning and intermediate cross-country skiers as well as racers.2. Although oxygen uptake increases proportionately to speed, there exists a somewhat larger variable related to stride technique and snow conditions.3. The EMG findings on diagonal stride techniques for beginners were: (1 ) phasic discharge of m. gastrocnemius in the kick phase, (2) tonic discharge of m. tibialis anterior in the gliding phase, and (3) phasic discharge in m. triceps brachii in the poling motion.4. According to the results of motion analysis by VTR, a shorter stride length for beginners was characterized by the following: (1) a smaller leg angle at the end of a kick, (2) insufficient knee flexion of the supporting leg during the glide, and (3) a smaller poling motion in the upper limbs.
本研究的目的是为了获得越野滑雪作为一种有效改善雪区人们健康和健身的运动处方的基本信息。选取20名健康的初级和中级滑雪者作为实验对象,研究步幅特征与生理反应的关系,训练引起的这些参数的变化,以及初学者步幅技术的生物力学特征。结果总结如下:1。从摄氧量方面,本研究证实了较长步幅和较低步幅率的步幅技术比短步幅和较高步幅率的步幅技术更有利的假设。在同样的速度下,这适用于初级和中级越野滑雪者以及赛车手。虽然摄氧量与速度成比例地增加,但与步幅技术和雪况有关的变量更大。初学者斜跨步技术的肌电表现为:(1)踢腿期腓肠肌的相性放电,(2)滑行期胫骨前肌的强直性放电,(3)撑杆运动时肱三头肌的相性放电。根据VTR的运动分析结果,初学者步幅较短的特点是:(1)踢腿结束时腿部角度较小,(2)滑行时支撑腿膝关节屈曲不足,(3)上肢的杆动较小。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Suda, K.Kawahatsu and T.Sasaki: "Stride characteristics and work intensity in beginners' "Skilanglauf"." Bulletin of The Faculty of Education Hokkaido University, Vol.55, 1990.
T.Suda、K.Kawahatsu 和 T.Sasaki:“初学者“Skilanglauf”的步幅特征和工作强度。”
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
須田力,川初清典,佐々木敏,三宅章介,晴山紫恵子: クロスカントリースキー. (1990)
须田力、川端清典、佐佐木智、三宅翔介、春山美惠子:越野滑雪(1990)。
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- 影响因子:0
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SUDA Tsutomu其他文献
SUDA Tsutomu的其他文献
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