Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/31839
Title: | Lower-Limb Passive Heat Maintenance Combined With Pre-cooling Improves Repeated Sprint Ability |
Contributor(s): | Beaven, C Martyn (author); Kilduff, Liam P (author); Cook, Christian J (author) |
Publication Date: | 2018 |
Early Online Version: | 2018-08-03 |
Open Access: | Yes |
DOI: | 10.3389/fphys.2018.01064 |
Handle Link: | https://hdl.handle.net/1959.11/31839 |
Abstract: | | Pre-conditioning strategies to potentiate performance are a common feature of pre-competition routines. The elevation of muscle temperature is seen as a vital component of preparing for physical performance, while pre-cooling strategies have been adopted to offset fatigue during repeated efforts. We investigated the individual and combined effects of a passive heat maintenance strategy and the ingestion of an ice-water slurry on repeated sprint performance. In a random cross-over design, 12 professional male athletes performed 5 x 40 m maximal running sprints under one of four conditions following a standardized warm-up: 15-min passive rest (Control); wearing a lower-body survival garment (HEAT); consuming a 500 mL ice slushy (COLD); or wearing the survival garment and consuming the slushy (H+C). Measures of sprint speed, fatigue, heart rate, and rectal temperature were collected. Compared to COLD: HEAT improved Sprint 1 (ES: 0.84; p = 0.05), but negatively impacted Sprint 4 (ES: -0.87; p = 0.08), and Sprint 5 (ES: -1.57; p = 0.002). H+C was faster than Control for every sprint (ES: 0.28 to 0.66), clearly faster than COLD on Sprints 1-3 (ES: 0.73 to 0.54), and clearly faster than HEAT on Sprints 4 and 5 (ES: 1.31 and 1.87). Fatigue was greatest after the HEAT intervention with a large correlation between fatigue and rectal temperature (r = 0.66; p = 0.0204). While there are undoubtedly peripheral effects of cooling and heating on various aspects of muscle function and fatigue, understanding the integration of psychophysiological homeostatic feedback loops relating to a combined warming and cooling intervention may benefit sports in which repeat sprints are performed.
Publication Type: | Journal Article |
Source of Publication: | Frontiers in Physiology, v.9, p. 1-7 |
Publisher: | Frontiers Research Foundation |
Place of Publication: | Switzerland |
ISSN: | 1664-042X |
Fields of Research (FoR) 2020: | 320803 Systems physiology |
Socio-Economic Objective (SEO) 2020: | 280103 Expanding knowledge in the biomedical and clinical sciences |
Peer Reviewed: | Yes |
HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
Appears in Collections: | Journal Article School of Science and Technology
|
Files in This Item:
2 files
File |
Description |
Size | Format | |
Show full item record