Context: Research into alleviating muscle pain and symptoms in individuals after delayed-onset muscle soreness (DOMS) has been inconsistent and unsuccessful in demonstrating a useful recovery modality.Objective: To investigate the effects of short-term wholebody vibration (WBV) on DOMS over a 72-hour period after a high-intensity exercise protocol.Design: Randomized controlled clinical trial. Setting: University laboratory.Patients or Other Participants: Thirty women volunteered to participate in 4 testing sessions and were assigned randomly to a WBV group (n ¼ 16; age ¼ 21.0 6 1.9 years, height ¼ 164.86 6 6.73 cm, mass ¼ 58.58 6 9.32 kg) or a control group (n ¼ 14; age ¼ 22.00 6 1.97 years, height ¼ 166.65 6 8.04 cm, mass ¼ 58.69 6 12.92 kg).Intervention(s): Participants performed 4 sets to failure of single-legged split squats with 40% of their body weight to induce muscle soreness in the quadriceps. The WBV or control treatment was administered each day after DOMS.Main Outcome Measure(s): Unilateral pressure-pain threshold (PPT), range of motion (ROM), thigh circumference, and muscle-pain ratings of the quadriceps were collected before and for 3 days after high-intensity exercise. Each day, we collected 3 sets of measures, consisting of 1 measure before the WBV or control treatment protocol (pretreatment) and 2 sets of posttreatment measures.Results: We observed no interactions for PPT, thigh circumference, and muscle pain (P . .05). An interaction was found for active ROM (P ¼ .01), with the baseline pretreatment measure greater than the measures at baseline posttreatment 1 through 48 hours posttreatment 2 in the WBV group. For PPT, a main effect for time was revealed (P , .05), with the measure at baseline pretreatment greater than at 24 hours pretreatment and all other time points for the vastus medialis, greater than 24 hours pretreatment through 48 hours posttreatment 2 for the vastus lateralis, and greater than 24 hours pretreatment and 48 hours pretreatment for the rectus femoris. For dynamic muscle pain, we observed a main effect for time (P , .001), with the baseline pretreatment measure less than the measures at all other time points. No main effect for time was noted for thigh circumference (P ¼ .24). No main effect for group was found for any variable (P . .05).Conclusions: The WBV treatment approach studied did not aid in alleviating DOMS after high-intensity exercise. Further research is needed in various populations.Key Words: range of motion, edema, pressure-pain threshold
Key PointsExposure to whole-body vibration did not effectively manage delayed-onset muscle soreness after high-intensity exercise in healthy, recreationally trained women. Researchers should study treatments to alleviate muscle pain in various populations.