Effects of transverse and frontal plane knee laxity on hip and knee neuromechanics during drop landings.

ABSTRACT:

Background

Varus-valgus (LAX(VV)) and internal-external (LAX(IER)) rotational knee laxity have received attention as potential contributing factors in anterior cruciate ligament injury. This study compared persons with above-and below-average LAX(VV) and LAX(IER) values on hip and knee neuromechanics during drop jump landings.

Hypothesis

People with greater LAX(VV) and LAX(IER) values will have greater challenges controlling frontal and transverse plane knee motions, as evidenced by greater joint excursions, joint moments, and muscle activation levels during the landing phase.

Study design

Descriptive laboratory study.

Methods

Recreationally active participants (52 women and 44 men) between 18 and 30 years old were measured for LAX(VV) and LAX(IER) and for thei

SUBMITTER: Shultz SJ 

PROVIDER: S-EPMC2894638 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature