TY - JOUR
T1 - The relationship between Core Stability Related Measurements and Countermovement Jump Height with/without Arm Swing
AU - Liang, Guo
AU - Li, Li
AU - Ying, Wu
PY - 2018/1/1
Y1 - 2018/1/1
N2 - 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.
AB - 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.
KW - Flexibility
KW - Jump on one leg
KW - Motion control
KW - Sit-ups
KW - trunk
UR - https://digitalcommons.georgiasouthern.edu/health-kinesiology-facpubs/142
UR - https://doi.org/10.16469/j.css.201804008
U2 - 10.16469/j.css.201804008
DO - 10.16469/j.css.201804008
M3 - Article
VL - 38
JO - China Sports Science
JF - China Sports Science
ER -