Hyperbaric oxygen therapy does not affect recovery from delayed onset muscle soreness
2000 (English)In: Medicine & Science in Sports & Exercise, ISSN 0195-9131, E-ISSN 1530-0315, Vol. 32, no 3, 558-563 p.Article in journal (Refereed) Published
PURPOSE: This study investigated whether hyperbaric oxygen therapy (HBOT) improves recovery after exercise-induced muscle injury.
METHODS: Healthy male subjects (N = 24) were randomly assigned to either a placebo group or a HBOT group. Subjects were tested for maximal isometric strength (preexercise) of their right elbow flexors. Each subject then completed a high-force eccentric workout of the elbow flexor muscle group to induce delayed onset muscle soreness (DOMS). On the seven successive days after this workout, the subjects were exposed to a hyperbaric environment of 2.5 ATA for 60 min, inspiring either a normoxic mixture (P(I)O2 = 0.2 ATA; placebo group) or a hyperoxic gas mixture (P(I)O2 = 2.5 ATA; HBOT group). Before the eccentric workout and daily for the next 10 d, measurements were obtained regarding: maximal isometric muscle strength of the elbow flexor muscles, right upper arm circumferences, and rating of the perceived muscle soreness.
RESULTS: Isometric strength decreased significantly from preexercise levels of 25.1 +/- 3.8 kp to postexercise levels of 12.0 +/- 4.6 kp, for the HBOT group, and from 24.6 +/- 3.4 kp to 12.5 +/- 3.7 kp, respectively, for the placebo group. Over the 10-d recovery period, there was no difference in the rate of recovery of muscle strength between the two groups. Perceived soreness peaked at about 48 h after exercise with no difference between groups. Also, the exercise-induced increases in arm circumference were similar in the two groups.
CONCLUSIONS: These results indicate that HBOT is not an effective therapy for the treatment of DOMS.
Place, publisher, year, edition, pages
2000. Vol. 32, no 3, 558-563 p.
ECCENTRIC EXERCISE, HYPEROXIA, ISOMETRIC STRENGTH, MUSCLE EDEMA, SORENESS
IdentifiersURN: urn:nbn:se:kth:diva-44610PubMedID: 10730995OAI: oai:DiVA.org:kth-44610DiVA: diva2:451658
QC 201111022011-10-262011-10-252011-11-02Bibliographically approved