Lower extremity kinematics of curve sprinting displayed by runners using a transtibial prosthesis. Issue 3 (1st February 2018)

• Record Type: Journal Article
• Authors: Li, Yumeng; Simpson, Kathy J.; Nolan, Lee; Miller, Marilyn; Johnson, Benjamin
• Is Part Of: Journal of sports sciences. Volume 36:Issue 3(2018)
• Page Start: 293
• Page End: 302
• Publication Date: 2018-02-01
• Subjects: Running -- below-knee amputation -- prostheses -- biomechanics; Sports -- Periodicals; Sports -- Physiological aspects -- Periodicals; Sports -- Psychological aspects -- Periodicals; 612.044
• DOI: 10.1080/02640414.2017.1303186
• Languages: English
• ISSNs: 0264-0414

Abstract

ABSTRACT: The purpose of the study was to determine if the kinematics exhibited by skilled runners wearing a unilateral, transtibial prosthesis during the curve section of a 200-m sprint race were influenced by interaction of limb-type (prosthetic limb (PROS-L) vs. nonprosthetic limb (NONPROS-L)) and curve-side ( inside and outside limb relative to the centre of the curve). Step kinematics, toe clearance and knee and hip flexion/extension, hip ab/adduction for one stride of each limb were generated from video of 13 males running the curve during an international 200 m transtibial-classified competition. Using planned comparisons ( P < 0.05), limb-type and curve-side interactions showed shortest support time and lowest hip abduction displacement by outside- NONPROS-L; shortest step length and longest time to peak knee flexion by the inside -PROS-L. For limb-type, greater maximum knee flexion angle and lower hip extension angles and displacement during support and toe clearance of PROS-Ls occurred. For curve-side, higher hip abduction angles during non-support were displayed by inside-limbs. Therefore, practitioners should consider that, for curve running, these kinematics are affected mostly by PROS-L limitations, with no clear advantage of having the PROS-L on either side of the curve.