Abstract

BackgroundThe ability to generate high levels of force with the finger flexor muscles and sustain it for the maximum time was reported as a climbing performance factor. This study aimed to answer the question of which is the most reliable edge depth to measure maximum hanging time in non-elite and elite rock climbers: 6, 8, 10, 12 or 14 mm. MethodsThirty-six climbers (10 female, 26 male; 6b-8c redpoint level) were assessed twice, one week apart. ResultsSystematic bias (95 % limits of agreements) was -1.84 (6.31) for HT6, -0.26 (8.83) for HT8, -1.30 (8.72) for HT10, -4.37 (9.57) for HT12, and -2.94 (9.53) for HT14 at non-elite group (all P values > 0.05 but HT12 and HT14). Among elite group, -1.38 (7.58), 0.68 (12.09), -2.20 (13.35), -0.49 (9.80) and 0.73 (10.44) was found (all P > 0.05) for HT6, HT8, HT10, HT12 and HT14, respectively. No patterns of heteroscedasticity were observed for any of the trials for non-elite and elite climbers. SignificanceAmong all edge depths analysed, 8 mm seemed to be the most accurate edge to evaluate hanging time. Alternatively, a 10 mm hold depth could be recommended for climbers from 6b to 7c, and 12 mm for climbers from 7c+ to 8c.

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