Page 61 - THEi Student Applied Research Presentations 2024

THE STUDY OF KINETICS AND KINEMATICS OF
SINGLE-LEG LANDING TASKS BETWEEN MALES

AND FEMALES USING INERTIAL MEASUREMENT

UNITS (IMU) AND FORCE-PLATE

ABSTRACT Poster

RESEARCH BACKGROUND
Various sports frequently incorporate single-leg landings (SLL) along with double
and single-leg take-off actions. Notably, a substantial proportion of anterior cruciate
ligament (ACL) injuries, ranging from 70% to 90%, occur as non-contact injuries,
often associated with SLL. Interestingly, females tend to have a greater knee abduction HO CHIU WAI
motion, particularly at key phases like initial contact and peak abduction than that
of males in various studies. There are limited studies which examine the kinetic and
kinematic aspects of whole-body rotation during SLL, involving both male and female BSocSc (Hons) in Sports and
participants. Recreation Management
Department of Sport and Recreation
METHODOLOGY
The research uses a quasi-experimental design with 30 healthy male and female
participants. Data was collected using a research-grade wearable sensor that include
an inertial measurement unit (IMU, APDM Opal) and vertical ground reaction force OBJECTIVES
(vGRF) data using a force plate (Noraxon, FP4060-05-PT). Each participants took part
in a one-day session lasting 30–60 minutes, which involved warm-up, familiarization, To discern and elucidate the distinctions
and data collection activities. The participants were instructed to perform 3 trials of
single-leg drop landing (using their dominant leg), and single-leg drop landing with a in the kinetics and kinematics underlying
90-degree rotation (using their dominant leg) in order to collect peak vGRF and peak both SLL and SLL executed during a
knee valgus value. 90-degree body rotation, particularly
concerning gender disparities.
FINDINGS
The current research did not reveal any main effect or interaction effect for gender-
specific effects in knee valgus angles and vGRF (p > .05). However, the detailed
post hoc results indicated minimal to moderate differences in the variables across
the conditions and genders (p = .004). In particular, there were significant gender
differences in vGRF and a notable difference in peak knee valgus angles between SLL
and SLL with rotation conditions for males (p=.02).
ABOUT THE INVESTIGATOR

My name is HO Chiu Wai, a sports therapy student fascinated by human anatomy and
human movement analysis. My career aspiration is to become a sports therapist, where
I can provide clinical treatment and on-field support for athletes. I completed my FYP
under the mentorship of Mr HO Man Kit, Indy. A huge gratitude to my supervisor for
his invaluable insights and guidance that sharpened my skills and fueled my passion
for academic research.

Student Applied Research Presentations 2024 Student Applied Research Presentations 2024 61