Effect of Half Time Cooling on Thermoregulatory Responses and Soccer-Specific Performance Tests
Journal Title: Montenegrin Journal of Sports Science and Medicine - Year 2014, Vol 3, Issue 1
Abstract
This study examined two active coolings (forearm and hand cooling, and neck cooling) during a simulated half-time recovery on thermoregulatory responses and subsequent soccer-specific exercise performance. Following a 45-min treadmill run in the heat, participants (N=7) undertook 15-min recovery with either passive cooling, forearm and hand cooling, or neck cooling in a simulated cooled locker room environment. After the recovery, participants performed a 6×15-m sprint test and Yo-Yo Intermittent Recovery Level 1 test (YYIR1) in a temperate environment. During the 15-min recovery, rectal temperature fell significantly (p<0.05). Neither active coolings induced further reduction in rectal temperature compared to passive cooling. No effect of active coolings was found in repeated sprint test. However, neck cooling reduced (p<0.05) the thermal sensation (TS) compared to passive cooling during the 15-min recovery. Active coolings attenuated (p<0.05) the sweat rate compared to passive cooling: 1.2±0.3 l•h-1 vs. 0.8±0.1 l•h-1 vs. 0.8±0.3 l•h-1, for passive cooling, forearm and hand cooling, and neck cooling, respectively. For passive cooling, elevated sweat rate resulted in higher (p<0.05) dehydration (2.1±0.3%) compared to neck cooling (1.5±0.3%) and forearm and hand cooling (1.4±0.3%). YYIR1 was improved (p<0.05) following forearm and hand cooling (869±320 m) and neck cooling (814±328 m) compared to passive cooling (654±311 m). Neck cooling (4.6±0.6) reduced (p=0.03) the session TS compared to passive cooling (5.3±0.5). These results suggest that active coolings effectively improved comfort and sweating response, which delayed exercise-heat induced performance diminish during a second bout of exercise.
Authors and Affiliations
Yang Zhang, Svetlana Nepocatych, Charlie P. Katica, Annie B. Collins, Catalina Casaru, Gytis Balilionis, Jesper Sjökvist, Phillip A. Bishop
Keywords
Related Articles
- EP ID EP190412
- DOI -
- Views 63
- Downloads 0
Exponential versus linear tapering in junior elite soccer players: effects on physical match performance according to playing positions
Th e purpose of the present study was to investigate the eff ects of exponential and linear tapering protocols on the distance covered according to playing positions among junior elite soccer players. One-hundred and fi...
Psychological State and Behavioural Profiles of Freshman Enrolled in College and University Instructional Physical Activity Programmes under Different Policy Conditions
Between late adolescence and early adulthood, people experience a precipitous decline in their participation in physical activity. Those attending college or university are often presented with opportunities to partake i...
Theoretical Issues and Methodological Implications in Researching Visual Search Behaviours: A Preliminary Study Comparing the Cognitive and Ecologic Paradigms
A number of research papers have been devoted to understanding the mechanisms underpinning successful decision-making in sports, and analysis of eye movements has deserved special attention in this concern. A thorough re...
Middle School Students’ Free-living Physical Activity on Physical Education Days, Non-physical Education Days, and Weekends
This study measured students’ free-living Physical Activity (PA) in order to examine activity patterns of youth. Students (N=221) in 12-classes wore accelerometers to measure their PA over six weeks in and out-of-school...
Two Aspects of Bias in Multivariate Studies: Mixing Specific with General Concepts and “Comparing Apples and Oranges”
This paper presents two types of bias that occur relatively often when using multivariate analysis. For both types of bias, it is characteristic that the number and choice of different types of variables are not balanced...