title: Effects of pulsed electromagnetic field therapy on delayed-onset muscle soreness in biceps brachii.
abstract: OBJECTIVE
  to compare the effects of pulsed electromagnetic field (PEMF) therapy and sham treatment on DOMS-related variables in elbow flexors at 24, 48 and 72 h after delayed onset muscle soreness (DOMS) induction exercise.
  
  
  METHODS
  randomized, double-blind, placebo-controlled study.
  
  
  METHODS
  Yonsei University laboratory.
  
  
  METHODS
  In total, 30 healthy male college students.
  
  
  METHODS
  Muscle soreness, peak torque, median frequency (MDF) and electromechanical delay (EMD) during isometric contraction at 24, 48 and 72 h after DOMS induction exercise.
  
  
  RESULTS
  Overall, the application of the PEMF was found to be effective in reducing the physiological deficits associated with DOMS, including improved recovery of perceived muscle soreness, MDF, and EMD during isometric contraction. Our results did not show that PEMF treatment was mechanically more effective for isometric peak torque generation compared to the sham group.
  
  
  CONCLUSIONS
  this study indicates that PEMF may be useful as a modality to reduce DOMS symptoms. However, further well-designed experiments are required to determine optimal treatment dosage and duration, and to investigate the physiological and clinical mechanisms of PEMF on DOMS.
authors.affiliation: Dept. of Physical Therapy, College of Health Science, and Dept. of Ergonomic Therapy, The Graduate School of Health and Environment, Yonsei University, Republic of Korea. Electronic address: hyeseonj@yonsei.ac.kr.
authors.forename: Hye-Seon
authors.initials: HS
authors.lastname: Jeon
authors.affiliation: Dept. of Physical Therapy, The Graduate School, Yonsei University, Republic of Korea. Electronic address: rloveush@hanmail.net.
authors.forename: Sun-Young
authors.initials: SY
authors.lastname: Kang
authors.affiliation: Dept. of Physical Therapy, The Graduate School, Yonsei University, Republic of Korea. Electronic address: pjh1325@naver.com.
authors.forename: Joo-Hee
authors.initials: JH
authors.lastname: Park
authors.affiliation: Dept. of Oriental Biomedical Engineering, College of Health Science, Sangji University, Usan-dong, Wonju-si, Gangwon-do, Republic of Korea. Electronic address: hslee@sangji.ac.kr.
authors.forename: Hyun-Sook
authors.initials: HS
authors.lastname: Lee
mesh_terms: D001132:Arm; D004311:Double-Blind Method; D004550:Elbow; D004576:Electromyography; D006801:Humans; D007537:Isometric Contraction; D055909:Magnetic Field Therapy / Q000379:methods*; D008297:Male; D018482:Muscle, Skeletal / Q000293:injuries*; D063806:Myalgia / Q000534:rehabilitation*; D017063:Outcome Assessment, Health Care; D055815:Young Adult
keywords: Biceps brachii; Delayed onset muscle soreness; Pulsed electromagnetic field