Effects of prolonged load carriage on angular jerk of frontal and sagittal knee motion.

ABSTRACT:

Background

During training, service members routinely walk with heavy body borne loads for long periods of time. These loads alter knee biomechanics and may produce jerky knee motions that reportedly increase joint loading and risk of musculoskeletal injury. Yet, it is unknown if service members use jerky knee motions during prolong walking with body borne load.

Research question

To quantify the effects of body borne load and duration of walking on the jerkiness of sagittal and frontal plane knee motion.

Methods

Eighteen participants had angular jerk of knee motion quantified while they walked (1.3 m/s) for 60-min with three body borne loads (0, 15, and 30 kg). Peak and cost of angular jerk for sagittal and frontal plane knee motion was quantified and submitted to a r

SUBMITTER: Krammer SM 

PROVIDER: S-EPMC7902472 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature