Differences in oxygenation kinetics between the dominant and non-dominant flexor digitorum profundus in rock climbers
Authors
Giles, David
España-Romero, Vanesa
Garrido, Inmaculada
de la O Puerta, Alex
Stone, Keeron
Fryer, Simon
Affiliation
University of DerbyUniversity of Cadiz
Andalusian Mountain Federation
University of Granada
University of Gloucestershire
Issue Date
2016-08-24
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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.Citation
Giles, D. (2016) 'Differences in Oxygenation Kinetics Between the Dominant and Non-Dominant Flexor Digitorum Profundus in Rock Climbers', International Journal of Sports Physiology and Performance, 12 (1) , pp. 137-139. doi: http://dx.doi.org/10.1123/ijspp.2015-0651Publisher
Human KineticsJournal
International Journal of Sports Physiology and PerformanceDOI
10.1123/ijspp.2015-0651Additional Links
http://journals.humankinetics.com/doi/10.1123/ijspp.2015-0651http://journals.humankinetics.com/journal/ijspp
Type
ArticleLanguage
enISSN
1555-0265EISSN
1555-0273ae974a485f413a2113503eed53cd6c53
10.1123/ijspp.2015-0651
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Except where otherwise noted, this item's license is described as Archived with thanks to International Journal of Sports Physiology and Performance