PPubMed5 Sep 2025

Evaluation of the reduction in perceived and performance fatigability by functional compression tights during squat exercises via electromyography and electroencephalography analysis Perceived and performance fatigability reduction by functional compression tights assessed with EMG and EEG

Takuma Isshiki, Shinnosuke Tsukada, Minami Akao, Yuna Ishikura, Hayato Shigetoh, Takayuki Kodama, Junya Miyazaki, Hasan Sozen

Abstract

This study investigated the effects of functional compression tights on perceived fatigability, muscle activity, and EEG responses. The tights significantly reduced perceived fatigability and selectively suppressed RMS activity in the VMO, suggesting reduced post-task neuromuscular demand. Although no significant changes were observed in EEG across most regions, a relatively stable alpha power in the Fz region may indicate potential modulation of frontal brain activity. These results suggest that compression garments may influence both motor and cognitive performance fatigability through muscl

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Functional compression tights reduce perceived fatigability and lower VMO muscle activity during squats, with trends toward stabilizing frontal EEG activity.

What’s new

i.First quantitative comprehensive assessment of functional compression tights on perceived fatigability, muscle activity, and EEG responses
ii.Demonstrated significant reduction in perceived fatigability and VMO RMS when wearing tights
iii.Identified significant correlations between EMG and EEG indicators under the compression condition
iv.Provided evidence of a potential stabilizing effect on frontal EEG activity (moderate effect size)

How they did it

Twenty healthy young adults performed squat tasks in a crossover design with and without functional compression tights. Surface EMG of five thigh muscles measured RMS and mean frequency, while EEG at Fp1, Fp2, and Fz recorded alpha, beta, and theta power. Perceived fatigability was rated on an 11‑point NRS and statistical comparisons used Wilcoxon signed‑rank tests and Spearman correlations.

What they found

Perceived fatigability significantly lower with tights (p=0.003, r=-0.46)
RMS of vastus medialis obliquus significantly reduced with tights (p=0.041, r=0.46)
No significant MF differences between conditions
Alpha power at Fz showed a trend toward reduction with tights (p=0.054, r=-0.43)
RF RMS positively correlated with perceived fatigability under tights (ρ=0.53, p=0.017)
RF MF negatively correlated with perceived fatigability under tights (ρ=-0.70, p=0.001)
Perceived fatigability positively correlated with alpha/theta power at Fp2 and alpha power at Fz under tights

Caveats

✕Trunk and hip joint angles were not controlled during squatting
✕Wearing tights before the task may have influenced baseline muscle activity or introduced placebo effects
✕EMG analysis was limited to selected lower‑limb muscles, excluding others such as gastrocnemius and erector spinae

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Evaluation of the reduction in perceived and performance fatigability by functional compression tights during squat exercises via electromyography and electroencephalography analysis Perceived and performance fatigability reduction by functional compression tights assessed with EMG and EEG

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