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. Tong, Julien S. Baker, Haifeng Zhang, Zhaowei Kong, Jinlei Nie

Research output: Contribution to journalArticle

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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 team sport-specific sprint performance in 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 were not restored satisfactorily (-6.4%, -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.
Original languageEnglish
Pages (from-to)479-489
Number of pages11
JournalJournal of Sports Science and Medicine
Volume18
Issue number3
Early online date1 Sep 2019
Publication statusE-pub ahead of print - 1 Sep 2019

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Cross-Over Studies
Sports
Leg
Perfusion
Athletic Performance
Respiration
Muscles

Keywords

  • Repeated-sprint ability
  • High-intensity intermittent exercise
  • Core stability
  • Inspiratory muscle
  • Fatigability

Cite this

@article{97cb2a9c954d43b1a896bfb503928ae5,
title = "Effects of specific core re-warm-ups on core function, leg perfusion and second-half team sport-specific sprint performance: a randomized crossover study",
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 team sport-specific sprint performance in 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 were not restored satisfactorily (-6.4{\%}, -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.",
keywords = "Repeated-sprint ability, High-intensity intermittent exercise, Core stability, Inspiratory muscle, Fatigability",
author = "Tong, {Tomas K.} and Baker, {Julien S.} and Haifeng Zhang and Zhaowei Kong and Jinlei Nie",
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Effects of specific core re-warm-ups on core function, leg perfusion and second-half team sport-specific sprint performance : a randomized crossover study. / Tong, Tomas K.; Baker, Julien S.; Zhang, Haifeng; Kong, Zhaowei; Nie, Jinlei.

In: Journal of Sports Science and Medicine, Vol. 18, No. 3, 01.09.2019, p. 479-489.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of specific core re-warm-ups on core function, leg perfusion and second-half team sport-specific sprint performance

T2 - a randomized crossover study

AU - Tong, Tomas K.

AU - Baker, Julien S.

AU - Zhang, Haifeng

AU - Kong, Zhaowei

AU - Nie, Jinlei

PY - 2019/9/1

Y1 - 2019/9/1

N2 - 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 team sport-specific sprint performance in 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 were not restored satisfactorily (-6.4%, -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.

AB - 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 team sport-specific sprint performance in 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 were not restored satisfactorily (-6.4%, -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.

KW - Repeated-sprint ability

KW - High-intensity intermittent exercise

KW - Core stability

KW - Inspiratory muscle

KW - Fatigability

M3 - Article

VL - 18

SP - 479

EP - 489

JO - Journal of Sports Science and Medicine

JF - Journal of Sports Science and Medicine

SN - 1303-2968

IS - 3

ER -