Affiliation:
1. Department of Physical Education and Sport Sciences National Taiwan Normal University Taipei City Taiwan
2. Physical Education Office Ming Chuan University Taipei City Taiwan
3. Department of Athletic Performance National Taiwan Normal University Taipei City Taiwan
4. Graduate Institute of Sport Leisure and Hospitality Management National Taiwan Normal University Taipei City Taiwan
5. School of Medical and Health Sciences, Centre for Human Performance Edith Cowan University Joondalup Australia
Abstract
ABSTRACTThe present study investigated the effects of a far‐infrared radiation (FIR) lamp therapy on changes in muscle damage and proprioception markers after maximal eccentric exercise of the elbow flexors (EF: Study 1) and the knee flexors (KF: Study 2) in comparison to a sham treatment condition. In each study, 24 healthy sedentary women were assigned to a FIR or a sham treatment group (n = 12/group). They performed 72 maximal EF eccentric contractions (Study 1) or 100 maximal KF eccentric contractions (Study 2) with their non‐dominant limbs. They received a 30‐min FIR (wavelength: 8–14 µm) or sham treatment at 1, 25, 49, 73 and 97 h post‐exercise to the exercised muscles. Maximum voluntary isometric contraction (MVC) torque, muscle soreness, plasma creatine kinase activity, and proprioception assessed by position sense, joint reaction angle, and force match were measured before, and 0.5, 24, 48, 72, 96 and 120 h post‐exercise. The outcome measures showed significant changes (P < 0.05) at 0.5‐hour post‐exercise (before treatment) similarly (P > 0.05) between the conditions in both studies. However, changes in all measures at 24–120 h post‐exercise were smaller (P < 0.05) for the FIR than sham condition in both studies. For example, MVC torque returned to the baseline by 72 h post‐exercise for the FIR condition in both studies, but was still 19 ± 6% (Study 1) or 17 ± 12% (Study 2) lower than the baseline at 120 h post‐exercise for the sham condition. These results suggested that the FIR lamp therapy was effective for accelerating recovery from muscle damage.
Funder
Ministry of Science and Technology
Ministry of Education
Subject
Orthopedics and Sports Medicine,Physical Therapy, Sports Therapy and Rehabilitation,General Medicine
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