INVESTIGATION OF LOWER LIMB FATIGUE ON TWO STANDING POSTURE
Abstract: The purpose
of this study
was to investigate
the different effect
from the two
standing posture on lower
limb fatigue and
discomfort. Sixteen subjects
(eight females and
eight males), aged between 23-29 years, participated in the experiment.
They performed a sorting task in front of a grading table by picking and placing
objects for 90 minutes in two posture (1)
standing and (2)
standing using a
footrest. Muscle activity
was recorded with
surface EMG through disposable
electrodes. The result
shows that standing
for ninety minutes developed fatigue
in lower limb
muscles and back
muscles that lead
to low back
pain. Standing using a
footrest result proper
posture for prolonged
standing period and
reduce force at the
back. It also
results less fatigue
and reduce the
%MVC of EMG.
So, it is recommended to
attach a footrest
in standing workstation
to reduce the
fatigue and discomfort.
Author: Sari Julia Sartika,
Siti Zawiah Dawal
Journal Code: jptindustrigg120003
