Sex-specific landing biomechanics and energy absorption during unanticipated single-leg drop-jumps in adolescents : implications for knee injury mechanics
(2020) In Journal of Biomechanics 113.- Abstract
Females aged between 13 and 17 years old possess the highest non-contact ACL injury incidence of any sex-age strata. Considering that energy absorption strategies have been associated with a reduced risk for sustaining an ACL injury, evaluating landing performance in youth athletes requires investigations beyond the kinematic level. The purpose of this study was to identify sex-specific energy absorption strategies in adolescent males and females, including the relationship between strength and the observed strategies. Thirty-one healthy adolescent athletes completed unanticipated single-leg drop-jump landings on their dominant limb. Sex-specific kinematics and lower-limb contributions to energy absorption were then compared over the... (More)
Females aged between 13 and 17 years old possess the highest non-contact ACL injury incidence of any sex-age strata. Considering that energy absorption strategies have been associated with a reduced risk for sustaining an ACL injury, evaluating landing performance in youth athletes requires investigations beyond the kinematic level. The purpose of this study was to identify sex-specific energy absorption strategies in adolescent males and females, including the relationship between strength and the observed strategies. Thirty-one healthy adolescent athletes completed unanticipated single-leg drop-jump landings on their dominant limb. Sex-specific kinematics and lower-limb contributions to energy absorption were then compared over the landing phase for each jump. Pearson and Spearman correlation coefficients determined the relationship between isometric joint strength and the observed kinematics and energy absorption. Female participants absorbed a larger proportion of the landing energy at the ankle (p = 0.046, d = 0.75) and smaller proportion at the hip (p = 0.028, d = 0.85) compared to males. Females also reached larger peak negative joint power in their knee (p = 0.001, d = 1.1) and ankle (p = 0.04, d = 0.79). Hip extension strength was positively correlated with trunk flexion (r = 0.559, p = 0.001) and negatively correlated with forward pelvic tilt (r = -0.513, p = 0.003). Females adopted an energy absorption strategy which utilized the distal joints to absorb a larger portion of the landing forces and tended to absorb the forces later in the landing phase relative to males. The greater reliance on distal joints is correlated to reduced hip strength and may increase the risk for sustaining an ACL injury.
(Less)
- author
- Romanchuk, Nicholas J. ; Del Bel, Michael J. and Benoit, Daniel L. LU
- publishing date
- 2020-12-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Adolescent, Drop-jumps, Energy absorption, Joint strength, Kinematics
- in
- Journal of Biomechanics
- volume
- 113
- article number
- 110064
- publisher
- Elsevier
- external identifiers
-
- scopus:85095916829
- pmid:33190054
- ISSN
- 0021-9290
- DOI
- 10.1016/j.jbiomech.2020.110064
- language
- English
- LU publication?
- no
- additional info
- Funding Information: The authors would like to thank Lisa Ek Orloff, Saskia Hanssen, Laura Boonstra, Laryssa Kemp and Céline Girard for their contributions in data collections. They would also like to thank the Ontario Graduate Scholarship, Natural Sciences and Engineering Research Council of Canada, Canadian Institutes of Health Research, and the University of Ottawa for their support. Publisher Copyright: © 2020 Elsevier Ltd
- id
- 750d02a3-94d6-4ce2-b92a-bb30956829d8
- date added to LUP
- 2023-08-24 16:54:34
- date last changed
- 2024-06-15 06:58:18
@article{750d02a3-94d6-4ce2-b92a-bb30956829d8,
abstract = {{<p>Females aged between 13 and 17 years old possess the highest non-contact ACL injury incidence of any sex-age strata. Considering that energy absorption strategies have been associated with a reduced risk for sustaining an ACL injury, evaluating landing performance in youth athletes requires investigations beyond the kinematic level. The purpose of this study was to identify sex-specific energy absorption strategies in adolescent males and females, including the relationship between strength and the observed strategies. Thirty-one healthy adolescent athletes completed unanticipated single-leg drop-jump landings on their dominant limb. Sex-specific kinematics and lower-limb contributions to energy absorption were then compared over the landing phase for each jump. Pearson and Spearman correlation coefficients determined the relationship between isometric joint strength and the observed kinematics and energy absorption. Female participants absorbed a larger proportion of the landing energy at the ankle (p = 0.046, d = 0.75) and smaller proportion at the hip (p = 0.028, d = 0.85) compared to males. Females also reached larger peak negative joint power in their knee (p = 0.001, d = 1.1) and ankle (p = 0.04, d = 0.79). Hip extension strength was positively correlated with trunk flexion (r = 0.559, p = 0.001) and negatively correlated with forward pelvic tilt (r = -0.513, p = 0.003). Females adopted an energy absorption strategy which utilized the distal joints to absorb a larger portion of the landing forces and tended to absorb the forces later in the landing phase relative to males. The greater reliance on distal joints is correlated to reduced hip strength and may increase the risk for sustaining an ACL injury.</p>}},
author = {{Romanchuk, Nicholas J. and Del Bel, Michael J. and Benoit, Daniel L.}},
issn = {{0021-9290}},
keywords = {{Adolescent; Drop-jumps; Energy absorption; Joint strength; Kinematics}},
language = {{eng}},
month = {{12}},
publisher = {{Elsevier}},
series = {{Journal of Biomechanics}},
title = {{Sex-specific landing biomechanics and energy absorption during unanticipated single-leg drop-jumps in adolescents : implications for knee injury mechanics}},
url = {{http://dx.doi.org/10.1016/j.jbiomech.2020.110064}},
doi = {{10.1016/j.jbiomech.2020.110064}},
volume = {{113}},
year = {{2020}},
}