Clifford et al., 2017 IJSPP.pdf (440.29 kB)
Cryotherapy reinvented: application of phase change material for recovery in elite soccer
journal contribution
posted on 2019-10-21, 08:47 authored by Tom CliffordTom Clifford, Will Abbott, Susan Y Kwiecien, Glyn Howatson, Malachy P McHughPurpose: To examine whether donning lower-body garments fitted with cooled phase change material (PCM) would enhance recovery after a soccer match. Methods: In a randomized, crossover design, 11 elite soccer players from the reserve squad of a team in the second-highest league in England wore PCM cooled to 15°C (PCMcold) or left at ambient temperature (PCMamb; sham control) for 3 h after a soccer match. To assess recovery, countermovement jump height, maximal isometric voluntary contraction (MIVC), muscle soreness, and the adapted Brief Assessment of Mood Questionnaire (BAM+) were measured before 12, 36, and 60 h after each match. A belief questionnaire was completed preintervention and postintervention to determine the perceived effectiveness of each garment. Results: Results are comparisons between the 2 conditions at each time point postmatch. MIVC at 36 h postmatch was greater with PCMcold versus PCMwarm (P = .01; ES = 1.59; 95% CI, 3.9–17.1%). MIVC also tended to be higher at 60 h postmatch (P = .05; ES = 0.85; 95% CI, −0.4% to 11.1%). Muscle soreness was 26.5% lower in PCMcold versus PCMwarm at 36 h (P = .02; ES = 1.7; 95% CI, −50.4 to −16.1 mm) and 24.3% lower at 60 h (P = .04; ES = 1.1; 95% CI, −26.9 to −0.874 mm). There were no between-conditions differences in postmatch countermovement jump height or BAM+ (P > .05). The belief questionnaire revealed that players felt the PCMcold was more effective than the PCMamb after the intervention (P = .004). Conclusions: PCM cooling garments provide a practical means of delivering prolonged postexercise cooling and thereby accelerate recovery in elite soccer players.
History
School
- Sport, Exercise and Health Sciences
Published in
International Journal of Sports Physiology and PerformanceVolume
13Issue
5Pages
584 - 589Publisher
Human KineticsVersion
- AM (Accepted Manuscript)
Rights holder
© Human KineticsPublisher statement
Accepted author manuscript version reprinted, by permission, from International Journal of Sports Physiology and Performance, 2019, 13 (5): pp.584-589, https://doi.org/10.1123/ijspp.2017-0334. © Human Kinetics, Inc.Acceptance date
2015-08-15Publication date
2018-05-01Copyright date
2018ISSN
1555-0265eISSN
1555-0273Publisher version
Language
- en
Depositor
Dr Tom Clifford. Deposit date: 18 October 2019Usage metrics
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