Comparison of Different Functional Tests for Leg Power and Normative Bilateral Asymmetry Index in Healthy Collegiate Athletes.
athlete
functional testing
limb symmetry
lower leg
power testing
return to play
Journal
Open access journal of sports medicine
ISSN: 1179-1543
Titre abrégé: Open Access J Sports Med
Pays: New Zealand
ID NLM: 101566036
Informations de publication
Date de publication:
2021
2021
Historique:
received:
10
04
2021
accepted:
13
07
2021
entrez:
16
8
2021
pubmed:
17
8
2021
medline:
17
8
2021
Statut:
epublish
Résumé
Bilateral leg power is being increasingly investigated as a proxy for the recovery of muscle performance after injury. Functional tests like the single leg hop for distance (SLHD) and single leg vertical jump (SLVJ) are often used to determine symmetry and return to play (RTP) readiness. As an injury predictor, leg power is accurately measured with the Keiser Air420 seated leg press. To measure and analyze lower leg asymmetry in healthy collegiate athletes across each test battery. Eighty-eight healthy student-athletes (44 males, 44 females) across 14 varsity teams at Wake Forest University performed the SLHD, SLVJ, and the Keiser. Horizontal and vertical displacement were measured via the SLHD and SLVJ, respectively. Peak power was recorded via the Keiser Air420 leg press. Pearson correlations and repeated measures ANOVA were used to calculate associations and compare bilateral asymmetry indices (BAI) and raw scores. There was a significant effect on each test's raw BAI ( At the 90th percentile, healthy collegiate athletes attained <15% BAI. We recommend the implementation of a battery of tests to determine normative lower limb asymmetry. A battery of functional tests may present different asymmetry indices as opposed the 10% reference asymmetry.
Sections du résumé
BACKGROUND
BACKGROUND
Bilateral leg power is being increasingly investigated as a proxy for the recovery of muscle performance after injury. Functional tests like the single leg hop for distance (SLHD) and single leg vertical jump (SLVJ) are often used to determine symmetry and return to play (RTP) readiness. As an injury predictor, leg power is accurately measured with the Keiser Air420 seated leg press.
PURPOSE
OBJECTIVE
To measure and analyze lower leg asymmetry in healthy collegiate athletes across each test battery.
METHODS
METHODS
Eighty-eight healthy student-athletes (44 males, 44 females) across 14 varsity teams at Wake Forest University performed the SLHD, SLVJ, and the Keiser. Horizontal and vertical displacement were measured via the SLHD and SLVJ, respectively. Peak power was recorded via the Keiser Air420 leg press. Pearson correlations and repeated measures ANOVA were used to calculate associations and compare bilateral asymmetry indices (BAI) and raw scores.
RESULTS
RESULTS
There was a significant effect on each test's raw BAI (
CONCLUSION
CONCLUSIONS
At the 90th percentile, healthy collegiate athletes attained <15% BAI. We recommend the implementation of a battery of tests to determine normative lower limb asymmetry. A battery of functional tests may present different asymmetry indices as opposed the 10% reference asymmetry.
Identifiants
pubmed: 34393525
doi: 10.2147/OAJSM.S315162
pii: 315162
pmc: PMC8354771
doi:
Types de publication
Journal Article
Langues
eng
Pagination
119-128Informations de copyright
© 2021 Sullivan et al.
Déclaration de conflit d'intérêts
B.U.N. reports ownership interest in BICMD, outside the submitted work. The other authors have no conflicts of interest to report.
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