Effects on Quadriceps Muscle Strength Using EMG in Supervised vs Unsupervised Post-Operative Anterior Crucial Ligament Reconstruction

Abstract

Anterior crucial ligament (ACL) injury is one of the most common ligament injuries in the knee. The
ACL injury is the anterior ligament tear or sprain (ACL). The objective of this paper is to compare the
effectiveness, recovery rate and the variance in the affected and non-affected limbs muscle strength/
activation potential readings of both knees in supervised v/s unsupervised groups of patients after
undergone ACL reconstruction surgery at RML Hospital Delhi. The participants were divided into two
groups (A-Supervised, and B-Unsupervised) through random sampling. The supervised exercise in group
a performed according to the WILK protocol at RML hospital, and un-supervised group B performed the
same WILK protocol at home. The method adopted for this study is to compare both Pre-operative and
Post-Operative quadriceps(vastus medialis and vastus latralis) EMG readings of the respondents has been
recorded using NEURON SPECTRUM 5 using NEUROSOFT Neuro-MEP.NET software at RML Hospital
Delhi. The study findings indicated the significant difference in recovery rate as well as the difference in
between supervised v/s unsupervised groups i.e. The average pre-operative-VM values of EMG- affected
for supervised was 97.1?V, and for unsupervised was 94.2?V and the average post-operative-VM values of
EMG for supervised was 130.1?V (36% variance), and for unsupervised was 95.2 ?V (1% variance). The
average pre-operative-VM values of EMG- normal for supervised was 135.8 ?V, and for unsupervised was
139 ?V and the average post-operative-VM values of EMG for supervised was 135.1 ?V (-7% variance),
and for unsupervised was 135.7 ?V (-6% variance).