Background: Delayed-onset muscle soreness (DOMS) is an acute micro-trauma or inflammatory response experienced in the most runners; and, it concurrently impairs athletic performance and may increase risk of sports injury. Alleviating the symptoms of DOMS strategies are various; however, the specific recovery way remains unconcluded. Furthermore, few studies have investigated that the effects of vibrating roller on alleviating the symptoms of DOMS, and understand the biochemical changes in response to recovery of athletic performance. Therefore, this study hypothesizes that vibration rolling (VR) could provide self-myofascia release. Meanwhile, vibration exercise could tramsit vibration to speific muscle groups to decrease inflammation in corresponding to reduce muscular pain. Therefore, it could offer positve effects including improvements of flexability, muscle stiffness, visual analog scale (VAS) for pain, jmup, and dynmaic balance. Purpose: To investigate VR, non-vibration rolling (NVR), and static stretching for DOMS on physiological changes and recovery of athletic performance in runners. Methods: Thirty healthy and recreationally adult runners will be voluntarily recruited in the experiment. Participant will be induced DOMS on the treadmill exercise firstly. Next, participants will be matched up and randomly assigned to the VR group, NVR group or static stretching group treatment. Each participant will be instructed to 20-minutes treatment on bilateral muscles including gluteus, anterior, and posterior thighs as well as anterior, and posterior legs. All subjects will receive blood analysis (leukocyte, lymphocyte, creatine kinase, c-reactive protein, interleukin-6) and perform flexibility muscular stiffness, VAS for pain, counter movement jump, Y balance tests on lower limb before exercise and after 24hour and 48 hour interventions. Expected outcomes: VR could effectively alleviate the symptoms of DOMS including decreasing inflammatory biochemical values, decreasing muscular stiffness, reducing muscular pain, and increasing flexibility and jump ability as well as improving dynamic balance on lower limb. This data may provide in alleviating the symptoms of DOMS to healthy populations, athletes, and medical team members.~Key Words: Delayed-onset muscle soreness, vibration therapy, foam roller, stretching exercise, recovery, performance
Delayed-onset muscle soreness (DOMS) is an acute micro-trauma or inflammatory response experienced in the most runners; and, it concurrently impairs athletic performance and may increase the risk of sports injury. Alleviating the symptoms of DOMS strategies are various; however, the specific recovery way remains unconcluded. Furthermore, few studies have investigated the effects of vibrating roller on alleviating the symptoms of DOMS and understand the biochemical changes in response to recovery of athletic performance. Therefore, this study hypothesizes that vibration rolling (VR) could provide a self-myofascial release. Meanwhile, vibration exercise could transmit vibration to specific muscle groups to decrease inflammation in corresponding to reduce muscular pain. Therefore, it could offer positive effects including improvements of flexibility, muscle stiffness, visual analog scale (VAS) for pain, jump, and dynamic balance.