Clifford et al., 2017 IJSPP.pdf (440.29 kB)

Cryotherapy reinvented: application of phase change material for recovery in elite soccer

Download (440.29 kB)
journal contribution
posted on 21.10.2019, 08:47 by Tom CliffordTom Clifford, Will Abbott, Susan Y Kwiecien, Glyn Howatson, Malachy P McHugh
Purpose: 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 Performance

Volume

13

Issue

5

Pages

584 - 589

Publisher

Human Kinetics

Version

AM (Accepted Manuscript)

Rights holder

© Human Kinetics

Publisher 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

15/08/2015

Publication date

2018-05-01

Copyright date

2018

ISSN

1555-0265

eISSN

1555-0273

Language

en

Depositor

Dr Tom Clifford. Deposit date: 18 October 2019

Usage metrics

Categories

Exports