Effects of electromyostimulation on sarcolipin and Ca2+ signaling in rat skeletal muscles
Why the study?
Expression of Ca2+ regulators is modified by resistance training, suggesting that Ca2+ signaling may be altered during a period of resistance training.
Does repeated transcutaneous electromyostimulation alter sarcolipin and Ca2+ signaling expression in male Sprague-Dawley rats?
Population
Male Sprague-Dawley rats
Comparison
Exercised legs vs control legs
Design
Animal experimental study
Follow-up
3 h after the 1st, 5th, and 10th exercise sessions
Key result
Repeated electromyostimulation significantly increased sarcolipin and RCAN1 expression in exercised rat legs compared to control legs after the 5th and 10th sessions (p<0.001).
Authors
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Should not change clinical practice; leaves open SLN/RCAN1 role in resistance training muscle adaptations.
Does repeated transcutaneous electromyostimulation alter sarcolipin and Ca2+ signaling expression in male Sprague-Dawley rats?
Repeated electromyostimulation increases sarcolipin expression in rat skeletal muscle, which correlates with enhanced Ca2+ signaling markers.
p-value: p=<0.001
Okumura et al. (2026) studied Healthy rats. Transcutaneous electromyostimulation vs. Control legs was evaluated on Expression of sarcolipin (SLN) and regulator of calcineurin 1 (RCAN1) (p=<0.001). Repeated electromyostimulation significantly increased sarcolipin and RCAN1 expression in exercised rat legs compared to control legs after the 5th and 10th sessions (p<0.001).