跑步生物力學參數與速度的關聯
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2023
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前言：對於跑者而言，找到長時間維持穩定心率、配速和最佳跑步速度是對提高跑步效率和品質的關鍵因素。目的:本研究旨在探討跑者在戶外速度漸增負荷測試之下，生理指標、跑步生物力學參數與速度之間的關聯。方法：招募15名跑團之市民跑者，進行戶外速度漸增負荷速測試。在跑者身上配戴心率帶及胸椎、薦椎以及雙腳脛骨黏貼慣性感測器，分別測量軀幹旋轉角速度、軀幹垂直加速度、步頻以及雙腳脛骨加速度峰值、觸地時間與騰空時間等生理學指標與運動學參數。進一步分析RPE量表7對應的速度，且使用最大距離法 (Dmax) 得到生理指標 (心率) 與各運動學參數的轉折點速度，最後以皮爾森積差相關進行統計分析，觀察無氧閾值速度與各項跑步生物力學參數的相關性。結果：各項跑步生物力學參數與(心率)無氧閾值未達顯著相關，但VTRAV-DP、VCAD-DP、VCT-DP (standardization) 與VCAD-DP (standardization) 與 (RPE) 無氧閾值速度呈現中-高度相關(r=.55-.79)。結論:在跑者的部分跑步生物力學參數轉折點速度與無氧閾值速度顯著相關之下，未來可以進一步推估預測無氧閾值速度方程式，以建立預測無氧閾值速度測量的新里程碑。
Background: For runners, finding ways to maintain a steady heart rate, pace and optimal running speed over a long period of time is a key factor in improving running efficiency and quality. Purpose: The purpose of this study was to investigate the relationship between physiological parameters, running biomechanical parameters and speed of runners under outdoor speed incremental load test. Method: Fifteen recreational runners were recruited and tested by outdoor speed increasing load speed test. The runners were fitted with heart rate bands and inertia sensors for thoracic vertebrae, sacral vertebrae and tibia adhesion of both feet to measure physiological and kinematic parameters such as trunk rotation angular speed, trunk vertical acceleration, stride frequency, peak of tibia acceleration of both feet, touch time and air time, respectively. The speed corresponding to RPE scale 7 was further analyzed, and the turning point speed of physiological index (heart rate) and kinematic parameters was obtained by using maximum distance method (Dmax). Finally, the correlation between anaerobic threshold speed and various running biomechanical parameters was statistically analyzed by using Pearson product difference correlation. Result: There was no significant correlation between biomechanical parameters of running and anaerobic threshold. However, VTRA-DP, VCAD-DP, VCT-DP (standardization), VCAD-DP (standardization) and (RPE 7) anaerobic threshold speed show a medium to high correlation (r=.55-.79). Conclusion: Since the turning point speed of some running biomechanical parameters of runners is significantly correlated with anaerobic threshold speed, the anaerobic threshold speed equation can be further estimated in the future to establish a new milestone in predicting anaerobic threshold speed measurement.
Background: For runners, finding ways to maintain a steady heart rate, pace and optimal running speed over a long period of time is a key factor in improving running efficiency and quality. Purpose: The purpose of this study was to investigate the relationship between physiological parameters, running biomechanical parameters and speed of runners under outdoor speed incremental load test. Method: Fifteen recreational runners were recruited and tested by outdoor speed increasing load speed test. The runners were fitted with heart rate bands and inertia sensors for thoracic vertebrae, sacral vertebrae and tibia adhesion of both feet to measure physiological and kinematic parameters such as trunk rotation angular speed, trunk vertical acceleration, stride frequency, peak of tibia acceleration of both feet, touch time and air time, respectively. The speed corresponding to RPE scale 7 was further analyzed, and the turning point speed of physiological index (heart rate) and kinematic parameters was obtained by using maximum distance method (Dmax). Finally, the correlation between anaerobic threshold speed and various running biomechanical parameters was statistically analyzed by using Pearson product difference correlation. Result: There was no significant correlation between biomechanical parameters of running and anaerobic threshold. However, VTRA-DP, VCAD-DP, VCT-DP (standardization), VCAD-DP (standardization) and (RPE 7) anaerobic threshold speed show a medium to high correlation (r=.55-.79). Conclusion: Since the turning point speed of some running biomechanical parameters of runners is significantly correlated with anaerobic threshold speed, the anaerobic threshold speed equation can be further estimated in the future to establish a new milestone in predicting anaerobic threshold speed measurement.
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長跑運動, 自覺努力程度量表, 穿戴式裝置, Long-Distance Running, Rating of Perceived Exertion, Wearable Device