Key result
Male subjects with low back pain exhibited significantly higher entropy values during a fatiguing submaximal muscle contraction compared to female subjects (p=0.01).
Why the study?
Does gender affect entropy and median frequency slope during a fatiguing submaximal muscle contraction in subjects with low back pain?
Population
44 subjects with low back pain, ranging in age from 26 to 64 years old.
Comparison
Modified Sorenson test vs Male vs. female subjects
Design
Cross-sectional
Authors
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Gender differences in EMG entropy during low back pain fatigue may exist; hypothesis-generating and should not yet change practice.
Cross-Sectional (n=44)
Does gender affect entropy and median frequency slope during a fatiguing submaximal muscle contraction in subjects with low back pain?
p-value: p=0.01
Shannon entropy measures of electromyographic power spectral analysis can differentiate between genders during fatiguing muscle contractions in patients with low back pain.
Sung et al. (2008) conducted a cross-sectional in Low back pain (n=44). Male gender vs. Female gender was evaluated on Entropy values of the back muscles during a fatiguing submaximal muscle contraction (p=0.01). Male subjects with low back pain exhibited significantly higher entropy values during a fatiguing submaximal muscle contraction compared to female subjects (p=0.01).
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