Stevens C J, Hacene J, Sculley D V, Taylor L, Callister R, Dascombe B
ASSET Laboratory Exercise and Sport Sciences, University of Newcastle, Ourimbah, Australia.
School of Biomedical Sciences and Pharmacy, University of Newcastle, Ourimbah, Australia.
Int J Sports Med. 2015 Aug;36(9):705-9. doi: 10.1055/s-0034-1398680. Epub 2015 Mar 19.
The purpose of the study was to establish the reliability of performance and physiological responses during a self-paced 5 km running time trial on a non-motorized treadmill. 17 male runners (age: 32±13 years, height: 177±7 cm, body mass: 71±9 kg, sum of 7 skinfolds: 55±21 mm) performed familiarization then 2 separate maximal 5 km running time trials on a non-motorized treadmill. Physiological responses measured included heart rate, oxygen uptake, expired air volume, blood lactate concentration, tissue saturation index and integrated electromyography. Running time (1,522±163 s vs. 1,519±162 s for trials 1 and 2, respectively) demonstrated a low CV of 1.2% and high ICC of 0.99. All physiological variables had CVs of less than 4% and ICCs of >0.92, with the exception of blood lactate concentration (7.0±2 mmol·L(-1) vs. 6.5±1.5 mmol·L(-1) for trials 1 and 2, respectively; CV: 12%, ICC: 0.83) and the electromyography measures (CV: 8-27%, ICC: 0.71-0.91). The data demonstrate that performance time in a 5 km running time trial on a non-motorized treadmill is a highly reliable test. Most physiological responses measured across the 5 km run also demonstrated good reliability.
本研究的目的是确定在非电动跑步机上进行的自定步速5公里跑步计时测试中，运动表现和生理反应的可靠性。17名男性跑步者（年龄：32±13岁，身高：177±7厘米，体重：71±9千克，7处皮褶厚度之和：55±21毫米）先进行适应性训练，然后在非电动跑步机上进行2次独立的最大强度5公里跑步计时测试。测量的生理反应包括心率、摄氧量、呼气量、血乳酸浓度、组织饱和度指数和肌电图积分。跑步时间（第一次测试为1522±163秒，第二次测试为1519±162秒）的变异系数（CV）较低，为1.2%，组内相关系数（ICC）较高，为0.99。除血乳酸浓度（第一次测试为7.0±2毫摩尔·升-1，第二次测试为6.5±1.5毫摩尔·升-1；CV：12%，ICC：0.83）和肌电图测量值（CV：8 - 27%，ICC：0.71 - 0.91）外，所有生理变量的CV均小于4%，ICC均大于0.92。数据表明，在非电动跑步机上进行的5公里跑步计时测试中的运动表现时间是一项高度可靠的测试。在5公里跑步过程中测量的大多数生理反应也显示出良好的可靠性。
Zotero 插件