Vibration Rolling, Non-Vibration Rolling, and Static Stretching for Delayed- Onset Muscle Soreness on Physiological Changes and Recovery of Athletic Performance in Runners.

No significant interaction effects were observed for any outcome variable across the three recovery interventions.

• Three interventions compared: vibrating roller (VR), non-vibrating roller (NVR), and static stretching (SS)
• Outcome variables included CK, CRP, IL-6, hamstrings flexibility, muscle stiffness, vertical jump performance, and Y-balance test (YBT)
• The absence of interaction effects indicates none of the interventions produced a trajectory of recovery distinct from the others
• Study used a crossover design with 11 participants who experienced DOMS completing the study

Hamstrings flexibility, YBT scores, and creatine kinase (CK) levels showed significant time effects, indicating natural recovery over 48 hours.

• Blood samples were collected at baseline (T0), 24 hours (T24), and 48 hours (T48) post-exercise
• Significant time effects were observed for hamstrings flexibility, YBT, and CK regardless of intervention group
• Changes were attributed to general physiological recovery rather than distinct benefits from any specific intervention
• Group differences in CK and YBT remained unchanged over time

Muscle stiffness, jump performance, CRP, and IL-6 levels did not differ between interventions.

• CRP and IL-6 were assessed as markers of inflammatory response at T0, T24, and T48
• Vertical jump performance was used as a measure of athletic performance recovery
• Muscle stiffness was measured across all three intervention conditions
• No between-group differences were found for these variables at any time point

DOMS was successfully induced in 11 of 18 enrolled participants through downhill treadmill running.

• 18 experienced adult runners with an average running experience of 6 years were initially enrolled
• Only 11 participants experienced DOMS and completed the study
• DOMS induction protocol involved downhill treadmill running
• The study used a crossover design allowing each participant to complete all three intervention conditions

The VR intervention used a vibration frequency of 28 Hz applied to four bilateral muscle groups for 30 seconds per group.

• Muscle groups targeted bilaterally included gluteal, anterior/posterior thigh, and anterior/posterior calf
• Each muscle group received 30 seconds of intervention per session
• Vibration frequency was set at 28 Hz for the VR condition
• NVR used the same rolling protocol without vibration, and SS served as the active control condition