Differences in oxygenation kinetics between the dominant and non-dominant flexor digitorum profundus in rock climbers
Journal article
Authors | Giles, David, España-Romero, Vanesa, Garrido, Inmaculada, de la O Puerta, Alex, Stone, Keeron and Fryer, Simon |
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Abstract | Purpose. This study examined differences in oxygenation kinetics in the non-dominant and dominant flexor digitorum profundus (FDP) of rock climbers. Methods. Participants consisted of 28 sport climbers with a range of on-sight abilities (6a+ to 8a French Sport). Using near infrared spectroscopy, oxygenation kinetics of the FDP was assessed by calculating the time to half recovery (t½ recovery) of the tissue saturation index (TSI) following 3-5 min of ischemia. Results. A 2-way mixed model ANOVA found a non-significant interaction (p =0.112) for TSI x sex. However, there was a significant the main effect (p =0.027) handedness (dominant vs. non-dominant FDP). The dominant forearm recovered 13.6% quicker (t½ recovery mean difference = 1.12 sec, 95% CI 0.13 to 2.10 sec) compared to the non-dominant FDP. This was not affected by 6-month on-sight climbing ability or sex (p =0.839, p =0.683). Conclusions. Significant intra-individual differences in oxygenation kinetics of the FDP were found. Improvements in oxygenation kinetics within the FDP are likely due to the abilities of the muscle to deliver, perfuse and consume oxygen. These enhancements may be due to structural adaptations in the microvasculature such as an increase in capillary density and an enhanced improvement in capillary filtration. |
Keywords | Rock climbing; Asymmetry; Handedness; Oxygenation kinetics; Near infrared spectroscopy |
Year | 2016 |
Journal | International Journal of Sports Physiology and Performance |
Publisher | Human Kinetics |
ISSN | 1555-0265 |
1555-0273 | |
Digital Object Identifier (DOI) | https://doi.org/10.1123/ijspp.2015-0651 |
Web address (URL) | http://hdl.handle.net/10545/621060 |
http://creativecommons.org/licenses/by/4.0/ | |
hdl:10545/621060 | |
Publication dates | 24 Aug 2016 |
Publication process dates | |
Deposited | 25 Nov 2016, 10:02 |
Accepted | 03 Apr 2016 |
Rights | Archived with thanks to International Journal of Sports Physiology and Performance |
Contributors | University of Derby, University of Cadiz, Andalusian Mountain Federation, University of Granada and University of Gloucestershire |
File | File Access Level Open |
File | File Access Level Open |
File | File Access Level Open |
https://repository.derby.ac.uk/item/952w4/differences-in-oxygenation-kinetics-between-the-dominant-and-non-dominant-flexor-digitorum-profundus-in-rock-climbers
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