
Keywords: الکتروفورز ژل پلی آکریل آمید SDS; Muscle atrophy; Transcutaneous electrical stimulation; Eccentric contractions; Isometric contractions; Concentric contractions; Ubiquitin-proteasome pathway; ATPase; adenosine triphosphatase; BSA; bovine serum albumin; CSA; cross-sectional area; HU; hin