There Is No Global Running Pattern More Economic Than Another at Endurance Running Speeds
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Purpose: The subjective Volodalen® score (V®score) and the objective duty factor metric can both assess global running patterns. The authors aimed to investigate the relation between running economy (RE) at endurance running speeds and the global running pattern quantified using both subjective and objective measures. Methods: RE and 3-dimensional whole-body kinematics were acquired by indirect calorimetry and an optoelectronic system, respectively, for 52 trained runners during treadmill runs at 10, 12, and 14 km/h. Results: Correlations between RE and V®score and RE and duty factor were negligible and nonsignificant across speeds tested (P ≥ .20), except for a low and significant correlation between RE and V®score at 10 km/h. Conclusions: These findings suggest there is no global running pattern more economic than another at endurance running speeds. Therefore, there is no advantage of choosing, favoring, or prescribing one specific global running pattern along a continuum based on V®score or duty factor metrics, and coaches should not try to modify the spontaneous running pattern of runners at endurance running speed to improve RE.
Patoz is with the Inst of Sport Sciences, University of Lausanne, Lausanne, Switzerland. Patoz, Lussiana, Breine, and Gindre are with the Research and Development Dept, Volodalen Swiss Sport Lab, Aigle, Switzerland. Lussiana and Gindre are with the Research and Development Dept, Volodalen, Chavéria, France. Lussiana is also with the Research Unit EA3920 Prognostic Markers and Regulatory Factors of Cardiovascular Diseases and Exercise Performance, Health, Innovation Platform, University of Bourgogne Franche-Comté, Besançon, France. Breine is also with the Dept of Movement and Sports Sciences, Ghent University, Ghent, Belgium. Hébert-Losier is with the Div of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Adams Centre for High Performance, Tauranga, New Zealand, and the Dept of Sports Science, National Sports Inst of Malaysia, Kuala Lumpur, Malaysia.
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