Effect of deep oscillation as a recovery method after fatiguing soccer training: A randomized cross-over study

摘要

Background/Objective In soccer the recovery time between matches is often not long enough for complete restoration. Insufficient recovery can result in reduced performance and a higher risk of injuries. The purpose of this study was to evaluate the potential of Deep Oscillation (DO) as a recovery method. Methods In a randomized crossover study including 8 male soccer players (22?±?3.3 years) the following parameters were evaluated directly before and 48?h after a fatiguing soccer-specific exercise: Maximum isokinetic strength of the leg and hip extensors and flexors (Con-Trex? Leg Press, Physiomed, Germany), rating of perceived exertion (RPE) during isokinetic testing (Borg scale 6–20), creatine kinase (CK) serum levels and Delayed Onset Muscle Soreness (DOMS; visual analogue scale 1–10). By random allocation, half of the group performed a DO self-treatment twice daily (4 applications of 15min each), whilst the other half received no intervention. 4 weeks later a cross-over was conducted. Two-way repeated measures analysis of variance was used to compare treatment versus control. Results A significant treatment effect was observed for maximum leg flexion strength (p?=?0.03; DO: 125?±?206?N vs. CG:??115?±?194; p?=?0.03) and for RPE (DO:??0.13?±?0.64; vs. CG:?+1.13?±?1.36; p?=?0.03). There was a trend to better recovery for maximum leg extension strength (DO:??31?±?165?N vs. CG:??138?±?212; p?=?0.028), CK values (DO: 72?±?331 U/ml vs. CG: 535?±?797 U/ml; p?=?0.15) and DOMS (DO: 3.4?±?1.5 vs. CG: 4.1?±?2.6; p?=?0.49). Conclusion In the present study we found significant effects of DO on maximum leg flexion strength and perceived rate of exertion. Other variables showed a consistent trend in favour of DO compared with the control without significance. DO seems to be a promising method to accelerate the time-course of peripheral recovery of muscle which should be addressed in larger studies in future. Trial registration ClinicalTrials.gov; NCT03411278, 18.01.2018 (during the study).