Institute of Sport Sciences and Physiotherapy, University of Tartu, Jakobi, Tartu, Estonia.
Medical Physiology Department, College of Health Sciences, Moi University, Eldoret, Kenya.
J Strength Cond Res. 2021 Feb 1;35(2):481-486. doi: 10.1519/JSC.0000000000002669.
Mooses, M, Haile, DW, Ojiambo, R, Sang, M, Mooses, K, Lane, AR, and Hackney, AC. Shorter ground contact time and better running economy: evidence from female Kenyan runners. J Strength Cond Res 35(2): 481-486, 2021-Previously, it has been concluded that the improvement in running economy (RE) might be considered as a key to the continued improvement in performance when no further increase in V̇o2max is observed. To date, RE has been extensively studied among male East African distance runners. By contrast, there is a paucity of data on the RE of female East African runners. A total of 10 female Kenyan runners performed 3 × 1,600-m steady-state run trials on a flat outdoor clay track (400-m lap) at the intensities that corresponded to their everyday training intensities for easy, moderate, and fast running. Running economy together with gait characteristics was determined. Subjects showed moderate to very good RE at the first (202 ± 26 ml·kg-1·km-1) and second (188 ± 12 ml·kg-1·km-1) run trials, respectively. Correlation analysis revealed significant relationship between ground contact time (GCT) and RE at the second run (r = 0.782; p = 0.022), which represented the intensity of anaerobic threshold. This study is the first to report the RE and gait characteristics of East African female athletes measured under everyday training settings. We provided the evidence that GCT is associated with the superior RE of the female Kenyan runners.
穆斯，M，黑尔，DW，奥贾姆博，R，桑，M，穆斯，K，莱恩，AR，和哈克尼，AC。着地时间更短，跑步经济性更好：来自肯尼亚女性跑步者的证据。J 力量与体能研究 35(2)：481-486，2021 年-此前，人们得出结论，当 V̇o2max 不再增加时，跑步经济性（RE）的提高可能被认为是提高成绩的关键。迄今为止，RE 已在东非长跑运动员中进行了广泛研究。相比之下，关于东非女性跑步者的 RE 数据却很少。共有 10 名肯尼亚女性在平坦的户外粘土赛道（400 米一圈）上进行了 3 次 1600 米稳态跑步试验，强度相当于她们日常轻松、中等和快速跑步的训练强度。同时确定了跑步经济性和步态特征。受试者在第一次（202 ± 26 ml·kg-1·km-1）和第二次（188 ± 12 ml·kg-1·km-1）跑步试验中表现出中等至非常好的 RE。相关分析显示，第二次跑步的 GCT 与 RE 之间存在显著关系（r = 0.782；p = 0.022），这代表了无氧阈的强度。这项研究首次报告了在日常训练环境下测量的东非女性运动员的 RE 和步态特征。我们提供的证据表明，GCT 与肯尼亚女性跑步者优越的 RE 有关。
