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<h5 class="section-title" id="d7700307e161">Objective</h5>
<p id="d7700307e163">The purpose of this study is to determine the intraexaminer and
interexaminer reliability
of electromyographic assessment of biceps brachii (BB) and triceps brachii (TB) muscles
in cricketers.
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<h5 class="section-title" id="d7700307e166">Methods</h5>
<p id="d7700307e168">Sixteen healthy male cricketers (ages 14-35 years) recruited
from Jamia Millia Islamia,
New Delhi, India were tested on 2 occasions that were held 1 week apart. On the first
occasion, only examiner 1 performed the testing; on the second occasion, examiner
1, examiner 2, and examiner 3 all performed testing. While testing for surface electromyography
(sEMG) activity of BB and TB muscles, participants were asked to produce maximal voluntary
isometric contraction (MVIC), which was to be held for 5 seconds against the resistance
provided by an examiner. Participants performed 3 MVICs per muscle per examiner, with
a rest interval of 3 minutes between consecutive contractions. Intraclass correlation
coefficient, standard error of measurement, and minimum detectable change were calculated
to determine the reliability of repeated sEMG measurements.
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<h5 class="section-title" id="d7700307e171">Results</h5>
<p id="d7700307e173">Nonsignificant differences were observed for the 2 trials completed
by examiner 1
(paired
<i>t</i> test) and testing done by all 3 examiners (repeated measures analysis of
variance)
at
<i>P</i> < .05 for both BB and TB. Intraclass correlation coefficient values ranged
from .84
to .86 for BB and .89 to .98 for TB. Standard error of measurement (minimum detectable
change) was .052 (.144) mV and .041 (.114) mV for BB intraexaminer and interexaminer
reliability testing, respectively, and .018 (.051) mV and .043 (.119) mV for TB intraexaminer
and interexaminer reliability testing. Ninety-five percent of the mean differences
between almost all of the repeated measurements were found to lie within the agreement
intervals estimated by Bland-Altman plots.
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<h5 class="section-title" id="d7700307e182">Conclusion</h5>
<p id="d7700307e184">This preliminary study suggests that sEMG is a reliable tool
with excellent intraexaminer
and interexaminer reliability for assessing the activity of BB and TB muscles in male
cricketers. These findings suggest that sEMG can be used to assess MVIC activity of
these muscles in clinical settings, as well as in research area.
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