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Temporal Kinematic Differences between Forward and Backward Jump-Landing

Backward jump-landing during sports performance will result in dynamic postural instability with a greater risk of injury, and most research studies have focused on forward landing. Differences in kinematic temporal characteristics between single-leg and double-leg backward jump-landing are seldom r...

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Autores principales: Xu, Datao, Cen, Xuanzhen, Wang, Meizi, Rong, Ming, István, Bíró, Baker, Julien S., Gu, Yaodong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7559031/
https://www.ncbi.nlm.nih.gov/pubmed/32933208
http://dx.doi.org/10.3390/ijerph17186669
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author Xu, Datao
Cen, Xuanzhen
Wang, Meizi
Rong, Ming
István, Bíró
Baker, Julien S.
Gu, Yaodong
author_facet Xu, Datao
Cen, Xuanzhen
Wang, Meizi
Rong, Ming
István, Bíró
Baker, Julien S.
Gu, Yaodong
author_sort Xu, Datao
collection PubMed
description Backward jump-landing during sports performance will result in dynamic postural instability with a greater risk of injury, and most research studies have focused on forward landing. Differences in kinematic temporal characteristics between single-leg and double-leg backward jump-landing are seldom researched and understood. The purpose of this study was to compare and analyze lower extremity kinematic differences throughout the landing phases of forward and backward jumping using single-leg and double-leg landings (FS and BS, FD and BD). Kinematic data were collected during the landing phases of FS and BS, FD and BD in 45 participants. Through statistical parametric mapping (SPM) analysis, we found that the BS showed smaller hip and knee flexion and greater vertical ground reactive force (VGRF) than the FS during 0–37.42% (p = 0.031), 16.07–32.11% (p = 0.045), and 23.03–17.32% (p = 0.041) landing phases. The BD showed smaller hip and knee flexion than the FD during 0–20.66% (p = 0.047) and 0–100% (p < 0.001) landing phases. Most differences appeared within a time frame during the landing phase at 30–50 ms in which non-contact anterior cruciate ligament (ACL) injuries are thought to occur and are consistent with the identification of risk in biomechanical analysis. A landing strategy that consciously increases the knee and hip flexion angles during backward landing should be considered for people as a measure to avoid injury during the performance of this type of physical activity.
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spelling pubmed-75590312020-10-29 Temporal Kinematic Differences between Forward and Backward Jump-Landing Xu, Datao Cen, Xuanzhen Wang, Meizi Rong, Ming István, Bíró Baker, Julien S. Gu, Yaodong Int J Environ Res Public Health Article Backward jump-landing during sports performance will result in dynamic postural instability with a greater risk of injury, and most research studies have focused on forward landing. Differences in kinematic temporal characteristics between single-leg and double-leg backward jump-landing are seldom researched and understood. The purpose of this study was to compare and analyze lower extremity kinematic differences throughout the landing phases of forward and backward jumping using single-leg and double-leg landings (FS and BS, FD and BD). Kinematic data were collected during the landing phases of FS and BS, FD and BD in 45 participants. Through statistical parametric mapping (SPM) analysis, we found that the BS showed smaller hip and knee flexion and greater vertical ground reactive force (VGRF) than the FS during 0–37.42% (p = 0.031), 16.07–32.11% (p = 0.045), and 23.03–17.32% (p = 0.041) landing phases. The BD showed smaller hip and knee flexion than the FD during 0–20.66% (p = 0.047) and 0–100% (p < 0.001) landing phases. Most differences appeared within a time frame during the landing phase at 30–50 ms in which non-contact anterior cruciate ligament (ACL) injuries are thought to occur and are consistent with the identification of risk in biomechanical analysis. A landing strategy that consciously increases the knee and hip flexion angles during backward landing should be considered for people as a measure to avoid injury during the performance of this type of physical activity. MDPI 2020-09-13 2020-09 /pmc/articles/PMC7559031/ /pubmed/32933208 http://dx.doi.org/10.3390/ijerph17186669 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xu, Datao
Cen, Xuanzhen
Wang, Meizi
Rong, Ming
István, Bíró
Baker, Julien S.
Gu, Yaodong
Temporal Kinematic Differences between Forward and Backward Jump-Landing
title Temporal Kinematic Differences between Forward and Backward Jump-Landing
title_full Temporal Kinematic Differences between Forward and Backward Jump-Landing
title_fullStr Temporal Kinematic Differences between Forward and Backward Jump-Landing
title_full_unstemmed Temporal Kinematic Differences between Forward and Backward Jump-Landing
title_short Temporal Kinematic Differences between Forward and Backward Jump-Landing
title_sort temporal kinematic differences between forward and backward jump-landing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7559031/
https://www.ncbi.nlm.nih.gov/pubmed/32933208
http://dx.doi.org/10.3390/ijerph17186669
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