The relationship between Core Stability Related Measurements and Countermovement Jump Height with/without Arm Swing

Title from Publication (Original Language)

核心稳定性相关测试与摆臂和不摆臂下蹲跳高度的关系

Document Type

Article

Publication Date

2018

Publication Title

China Sports Science

DOI

10.16469/j.css.201804008

ISSN

1000-677X

Abstract

Objective: To explore the relationship between the core stability related test (CSRM) and the swing-arm and non-swing-arm squat jump (CMJ). Method: 20 college students were recruited in a university in the United States. The vertical support reaction force (VGRF) data of the subject's CMJ process was collected through the force plate, and the height of the swing arm CMJ (HAS) and the unswing arm CMJ height were calculated using the law of conservation of mechanical energy ( HNAS). CSRM includes 5 tests including trunk flexion and extension range (TFE), dominant side single-leg standing (DLS), dominant side single-leg long jump (DLH), trunk extensor endurance (EE), and sit-ups (SU). The sum of flexion range (TF) and trunk extension range (TE) is counted as TFE. Pearson correlation coefficient is used to reflect the correlation between CMJ height and CSRM, and multiple linear regression method is used to determine the CSRM that can effectively predict CMJ height. Results: DLH and HNAS have a significant correlation (P<0.05), and the two share a 45.3% variability. DLH and HAS also have a significant correlation (P<0.05), and the two share a 46.5% variability. The difference between TF and TE (DFE) and the difference between HAS and HNAS (DAN) have a significant correlation (P<0.05), and the two share a 34.0% variability. Conclusion: DLH is a good indicator for predicting HNAS and HAS, and DFE is a good indicator for predicting DAN. When studying the swing arm to increase the height of CMJ, larger TF and smaller TE should be considered as key factors.

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© 2018 China HowNet (the CNKI)

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