Journal article
Heated jackets and dryland-based activation exercises used as additional warm-ups during transition enhance sprint swimming performance
Journal of science and medicine in sport, Vol.19(4), pp.354-358
01/04/2016
PMID: 25987491
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Abstract
Objectives: The lengthy competition transition phases commonly experienced by competitive swimmers may mitigate the benefits of the pool warm-up. To combat this, we examined the impact of additional passive and active warm-up strategies on sprint swimming performance.
Design: Counterbalanced, repeated-measures cross-over study.
Methods: Sixteen junior competitive swimmers completed a standardised pool warm-up followed by a 30 min transition and 100 m freestyle time-trial. Swimmers completed four different warm-up strategies during transition: remained seated wearing a conventional tracksuit top and pants (Control), wore an insulated top with integrated heating elements (Passive), performed a 5 min dryland-based exercise circuit (Dryland), or a combination of Passive and Dryland (Combo). Swimming time-trial performance, core and skin temperature and perceptual variables were monitored. Time variables were normalised relative to Control.
Results: Both Combo (-1.05 +/- 0.26%; mean 90% confidence limits, p = 0.00) and Dryland (-0.68 +/- 0.34%; p = 0.02) yielded faster overall time-trial performances, with start times also faster for Combo (-0.37 +/- 0.07%; p = 0.00) compared to Control. Core temperature declined less during transition with Combo (-0.13 +/- 0.25 degrees C; p = 0.01) and possibly with Dryland (-0.24 +/- 0.13 degrees C; p =0.09) compared to Control (-0.64 +/- 0.16 degrees C), with a smaller reduction in core temperature related to better time-trial performance (R-2 = 0.91; p = 0.04).
Conclusions: Dryland-based exercise circuits completed alone and in combination with the application of heated tracksuit jackets during transition can significantly improve sprint swimming performance. Attenuation in the decline of core temperature and a reduction in start time appear as likely mechanisms. (C) 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Details
- Title
- Heated jackets and dryland-based activation exercises used as additional warm-ups during transition enhance sprint swimming performance
- Creators
- Courtney J. McGowan - University of CanberraKevin G. Thompson - University of CanberraDavid B. Pyne - Australian Institute of SportJohn S. Raglin - Indiana University BloomingtonBen Rattray - University of Canberra
- Publication Details
- Journal of science and medicine in sport, Vol.19(4), pp.354-358
- Publisher
- Elsevier
- Number of pages
- 5
- Grant note
- Faculty of Health at the University of Canberra
- Identifiers
- 991013065340302368
- Copyright
- © 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
- Academic Unit
- Human Sciences; Faculty of Health
- Language
- English
- Resource Type
- Journal article