Maturity alters drop vertical jump landing force‐time profiles but not performance outcomes in adolescent females

The stretch‐shortening cycle (SSC) assists in effective force attenuation upon landing and augments force generation at take‐off during a drop vertical jump (DVJ). General performance outcomes such as jump height or peak measures have been used to assess SSC function in youth populations; however, t...

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Bibliographic Details
Published in:Scandinavian journal of medicine & science in sports 2021-11, Vol.31 (11), p.2055-2063
Main Authors: Pedley, Jason S., DiCesare, Christopher A., Lloyd, Rhodri S., Oliver, Jon L., Ford, Kevin R., Hewett, Tim E., Myer, Gregory D.
Format: Article
Language:English
Subjects:
Adolescent
Adolescent Development - physiology
anterior cruciate ligament
Athletic Injuries - prevention & control
Biomechanical Phenomena
Child
depth jump
Female
Females
growth
Humans
Jumping
maturation
Movement - physiology
plyometric
Plyometric Exercise
Weight-Bearing - physiology
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Summary:The stretch‐shortening cycle (SSC) assists in effective force attenuation upon landing and augments force generation at take‐off during a drop vertical jump (DVJ). General performance outcomes such as jump height or peak measures have been used to assess SSC function in youth populations; however, these discrete metrics fail to provide insight into temporal jump‐landing characteristics. This study assessed DVJ force‐time profiles in 1013 middle and high‐school female athletes (n = 279 prepubertal, n = 401 pubertal, and n = 333 postpubertal). Maturity status was determined using the Pubertal Maturation Observation Scale. Ground reaction force data were analyzed to extract a range of variables to characterize force‐time profiles. SSC function was categorized as poor, moderate, or good dependent on the presence of an impact peak and spring‐like behavior. No differences in jump height or ground contact time were observed between maturity groups (p > 0.05). Significant differences in absolute peak landing and take‐off force were evident between all maturational statuses (p 
ISSN:0905-7188
1600-0838
DOI:10.1111/sms.14025