High Density Surface Electromyography Activity of the Lumbar Erector Spinae Muscles and Comfort/Discomfort Assessment in Piano Players: Comparison of Two Chairs.

Front Physiol · 2021 · PMC8671302 · PMID 34925054

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a decreasing trendno p-value reported

Finally, a decreasing trend of mean RMS was observed over time, but no significant change of the ROA’s centroid was observed possibly because the inter-subject variability was considerable.

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