Differences in forearm strength, endurance, and hemodynamic kinetics between male boulderers and lead rock climbers

Fryer, Simon M, Stone, Keeron J, Sveen, Joakim, Dickson, Tabitha, España-Romero, Vanesa, Giles, David, Baláš, J, Stoner, Lee and Draper, Nick (2017) Differences in forearm strength, endurance, and hemodynamic kinetics between male boulderers and lead rock climbers. European Journal of Sport Science, 17 (9). pp. 1177-1183. ISSN 1746-1391

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Abstract

This study examined differences in the oxygenation kinetics and strength and endurance characteristics of boulderers and lead sport climbers. Using near infrared spectroscopy, 13-boulderers, 10-lead climbers, and 10-controls completed assessments of oxidative capacity index and muscle oxygen consumption (mV˙O2) in the flexor digitorum profundus (FDP), and extensor digitorum communis (EDC). Additionally, forearm strength (maximal volitional contraction MVC), endurance (force–time integral FTI at 40% MVC), and forearm volume (FAV and ΔFAV) was assessed. MVC was significantly greater in boulderers compared to lead climbers (mean difference = 9.6, 95% CI 5.2–14 kg). FDP and EDC oxidative capacity indexes were significantly greater (p = .041 and .013, respectively) in lead climbers and boulderers compared to controls (mean difference = −1.166, 95% CI (−3.264 to 0.931 s) and mean difference = −1.120, 95% CI (−3.316 to 1.075 s), respectively) with no differences between climbing disciplines. Climbers had a significantly greater FTI compared to controls (mean difference = 2205, 95% CI= 1114–3296 and mean difference = 1716, 95% CI = 553–2880, respectively) but not between disciplines. There were no significant group differences in ΔFAV or mV˙O2. The greater MVC in boulderers may be due to neural adaptation and not hypertrophy. A greater oxidative capacity index in both climbing groups suggests that irrespective of climbing discipline, trainers, coaches, and practitioners should consider forearm specific aerobic training to aid performance.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Oxidative capacity; Microvascular adaptation; Near infrared spectroscopy; Blood flow; Perfusion; Sport climbing
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure > GV191.2 Outdoor Life. Outdoor recreation. > GV199.44 Rock climbing.
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Schools and Research Institutes > School of Sport and Exercise > Applied Sport & Exercise Sciences
Research Priority Areas: Sport, Exercise, Health & Wellbeing
Depositing User: Susan Turner
Date Deposited: 08 Aug 2017 11:28
Last Modified: 07 May 2019 13:46
URI: http://eprints.glos.ac.uk/id/eprint/4831

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