Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
Views
233
Download
679
 
©Journal of Sports Science and Medicine ( 2019 ) 18 , 479 - 489

Research article
Effects of Specific Core Re-Warm-Ups on Core Function, Leg Perfusion and Second-Half Team Sport-Specific Sprint Performance: A Randomized Crossover Study
Tomas K. Tong1, , Julien S. Baker2, Haifeng Zhang3, Zhaowei Kong4, Jinlei Nie5
Author Information
1 Department of Physical Education, Hong Kong Baptist University, Hong Kong, China
2 Institute of Clinical Exercise and Health Sciences, School of Science, University of the West of Scotland, Hamilton, Scotland, UK
3 Physical Education College, Hebei Normal University, Shijiazhuang, China
4 Faculty of Education, University of Macau, Macau, China
5 School of Physical Education and Sports, Macao Polytechnic Institute, Macau, China

Tomas K. Tong
‚úČ Department of Physical Education, AAB935, Academic and Administration Building, Shaw Campus, Hong Kong Baptist University, Renfrew Rd., Kowloon Tong, Hong Kong, China
Email: tongkk@hkbu.edu.hk
Publish Date
Received: 25-03-2019
Accepted: 29-05-2019
Published (online): 01-09-2019
Share this article
 
 
ABSTRACT

This study examined the effects of a specific core exercise program, as a re-warm-up regime during the half-time period, on inspiratory (IM) and core (CM) muscle functions, leg perfusion and the team sport-specific sprint performance in the initial stage of the second half of a simulated exercise task. Nine team-sports players performed a simulated team-sport intermittent exercise protocol (IEP) in two phases, on a non-motorized treadmill, interspersed by a 15-min half-time break. During the half-time period subsequent to the 25-min Phase-1 IEP, the players either rested passively or performed 4-min CM exercise concomitant with inspiratory loaded breathing following 11-min passive recovery. The changes in IM and CM functions, leg perfusion and repeated-sprint ability mediated by the two recovery modes were compared. Following Phase-1 IEP, there was a significant decline in IM and CM functions respectively, revealed by the decreases in maximal inspiratory pressure (PImax: -8.1%) and performance of a sport-specific endurance plank test (SEPT: -29.7%, p < 0.05). With the 15-min passive recovery, the decline in IM and CM functions from pre-exercise levels were not restored satisfactorily (PImax: -6.4%, SEPT: -19.0%, p < 0.05). Moreover, repeated-sprint ability during the Phase-2 IEP tended to decrease (peak velocity: -2.3%, mean velocity: -2.1%) from the levels recorded in Phase-1. In contrast, following the re-warm-up exercises during half-time, the restoration of IM and CM function was accelerated (PImax: -0.9%, SEPT: -3.3%, p <0 .05). This was associated with enhanced repeated-sprint ability (peak velocity: +3.0%, mean velocity: +2.0%, p < 0.05) in Phase-2 IEP. Nevertheless, the changes in the anterior thigh muscle perfusion assessed by near-infrared spectroscopy following the re-warm-up exercises was not different from that of passive recovery (p > 0.05). The findings suggest that a brief inspiratory-loaded CM exercise regime appears to be an effective re-warm-up strategy that optimizes second-half repeated-sprint performance and core function of players in team sports.

Key words: Repeated-sprint ability, high-intensity intermittent exercise, core stability, inspiratory muscle, fatigability


           Key Points
  • IM and CM functions of team-sport players were declined after the first half of a simulated team-sport IEP. Passive recovery during the subsequent 15-min half-time break did not restore the declined muscle functions, and this was associated with the debilitated sprint performance during the initial stage of second half.
  • A re-warm-up protocol composed of four running-specific inspiratory-loaded CM exercises carried out in the players after passive recovery for 11 mins during the half-time break could accelerate the restoration of their IM and CM functions, and retain their sprint performance in the second half.
  • The brief inspiratory-loaded CM exercise regime, which could be accomplished within a few minutes in a small space, is a potential alternative to current re-warm-up strategies to optimize the second-half performance in team sport.
 
 
Home Issues About Authors
Contact Current Editorial board Authors instructions
Email alerts In Press Mission For Reviewers
Archive Scope
Supplements Statistics
Most Read Articles
  Most Cited Articles
 
    
 
JSSM | Copyright 2001-2019 | All rights reserved. | LEGAL NOTICES | Publisher

It is forbidden the total or partial reproduction of this web site and the published materials, the treatment of its database, any kind of transition and for any means, either electronic, mechanic or other methods, without the previous written permission of the JSSM.

This work is licensed under a Creative Commons License Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.