The Key Technical Characteristics Affecting the 1 500-m Straight Performance of Chinese Male Speed Skaters
10.16156/j.1004-7220.2024.03.018
- VernacularTitle:影响我国男子1 500 m速滑直道速度的关键技术特征
- Author:
Masen ZHANG
1
;
Jing CUI
;
Zhongping SHAO
;
Hui LIU
Author Information
1. 西北工业大学体育部,西安 710072
- Keywords:
speed skating;
straight technique;
automatic capture;
motion analysis;
biomechanics
- From:
Journal of Medical Biomechanics
2024;39(3):497-503
- CountryChina
- Language:Chinese
-
Abstract:
Objective Biomechanical analyses of straight techniques for Chinese male skaters during the 1 500-m race were conducted to determine the influence of motion techniques on sports performance.Methods Thirty-four male skaters participating in the 1 500-m National Speed Skating Championship race were selected as research subjects.Kinematic characteristics were collected using three-dimensional fixed-point video analysis.The correlations between the periodic characteristics,motion phase characteristics,moment characteristics,and periodic velocity were analyzed.Results The period distance(r=0.560),gliding distance(r=0.554),and push-off distance(r=0.512)showed strong positive correlations with the periodic velocity.The trunk range of motion(ROM)(r=0.651),ankle angle(r=0.434),and ankle ROM(r=0.446)showed moderate or high positive correlations with the gliding velocity.The trunk angle(r=-0.427)showed a moderate negative correlation with the gliding velocity.Additionally,the trunk angle(r=0.673),hip extension angle(r=0.804),abduction angle(r=0.560),and abduction angle speed(r=0.566)were highly positively correlated with the push-off velocity.The push-off angle(r=-0.605)showed a high negative correlation with the push-off velocity.Conclusions The velocity of a straight line in 1 500-m speed skating depends on the dancing distance.Greater gliding and push-off distances result in higher velocities.The trunk and ankle angles significantly influence the gliding velocity,and appropriately increasing the trunk ROM can effectively improve the gliding velocity.The trunk,hip,and push-off angles are key determinants affecting the push-off velocity,and actively extending the hip and pushing-off can effectively enhance the push-off velocity.
