Preferred Hip Strategy During Landing Reduces Knee Abduction Moment in Collegiate Female Soccer Players.
BACKGROUND
Hip-focused interventions are aimed to decrease frontal plane knee loading related to anterior cruciate ligament injuries. Whether a preferred hip landing strategy decreases frontal plane knee loading is unknown.


OBJECTIVE
To determine if a preferred hip landing strategy during a drop vertical jump (DVJ) is utilized during a single-leg landing (SLL) task and whether differences in frontal plane knee loading are consistent between a DVJ and an SLL task.


METHODS
Descriptive laboratory study.


METHODS
Research laboratory.


METHODS
Twenty-three collegiate, female soccer players.


METHODS
Participants were dichotomized into a hip (HIP; n = 9) or knee/ankle (KA; n = 14) strategy group based on the percentage distribution of each lower extremity joint relative to the summated moment (% distribution) during the DVJ. Separate 1-way analysis of variances examined the differences in joint-specific % distribution and external knee abduction moment between the HIP and KA groups.


RESULTS
The HIP group had significantly greater % distribution of hip moment and less % distribution of knee moment compared with the KA group during the DVJ and SLL. External knee abduction moment was also significantly less in the HIP group compared with the KA group during the DVJ.


CONCLUSIONS
Female soccer athletes who land with a preferred hip strategy during a DVJ also land with a preferred hip strategy during an SLL. The preferred hip strategy also resulted in less external knee abduction moments during the DVJ.


CONCLUSIONS
Targeting the neuromuscular control of the hip extensor may be useful in reducing risk of noncontact anterior cruciate ligament injuries.
Anh-Dung
AD
Nguyen
Jeffrey B
JB
Taylor
Taylor G
TG
Wimbish
Jennifer L
JL
Keith
Kevin R
KR
Ford
D000293:Adolescent; D000843:Ankle Joint / Q000502:physiology; D056352:Athletes; D001696:Biomechanical Phenomena; D005260:Female; D006621:Hip Joint / Q000502:physiology*; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D016059:Range of Motion, Articular; D012916:Soccer; D055815:Young Adult
ACL risk factors; knee loading; lower extremity joint distribution