Effects of far-infrared radiation lamp therapy on recovery from a simulated soccer-match in elite female soccer players

Wei-Chin Tseng, Kazunori Nosaka, Tai-Ying Chou, Glyn Howatson, Trevor Chen*

*Corresponding author for this work

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We investigated the effects of far-infrared radiation (FIR) lamp therapy on changes in muscle damage and performance parameters following six sets of 15-minute Loughborough intermittent shuttle test (LIST), a simulated soccer match. Twenty-four elite female soccer players (20-24 y) were assigned into FIR or sham treatment group (n=12/group). The participants received a 60-minute FIR or sham treatment (30 minutes per muscle) over knee extensors (KE) and flexors (KF) at 2, 25, 49, 73 and 97 hours post-LIST. Maximal voluntary isometric contraction (MVC) torque and muscle soreness of the KE and KF, plasma creatine kinase (CK) activity as muscle damage markers, and several performance parameters including countermovement jump (CMJ) and Yo-Yo intermittent recovery test level 1 (YYIR1) were measured before and 1, 24, 48, 72, 96 and 120 hours post-LIST. Changes in the measures were compared between groups by a mixed-design two-way ANOVA. The running distance covered during LIST and changes in the measures at 1-hour post-LIST (before the treatment) were similar (P=0.118-0.371) between groups. Changes in muscle damage markers at 24-120 hours post-LIST were smaller (P<0.05, η2=0.208-0.467) for the FIR (e.g., MVC-KE torque decrease at 48-hour post-LIST: -12%, peak KE soreness: 1610 mm, peak CK: 17242 IU/L) than sham group (-119%, 337 mm, 466220 IU/L, respectively). Performance parameters recovered faster (P<0.05, η2=0.142-0.308) to baseline for the FIR (e.g., decreases at 48-hour post-LIST; CMJ: 01%, YYIR1: 01%) than sham group (-62%, -96%, respectively). These results suggest that the FIR lamp therapy was effective for enhancing recovery from a soccer match.
Original languageEnglish
Article numbere14615
JournalScandinavian Journal of Medicine and Science in Sports
Issue number4
Early online date31 Mar 2024
Publication statusPublished - 1 Apr 2024

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