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Study on Treadmill Running and Overground Operation

Writer:realleaderfitnessDate:2017-2-4 09:24:43
Treadmill Running: Eight young people voluntarily participated in the study. They are students of physical education and are experienced in treadmill running. After a 5 minute warm-up at 3.33 m · s -1, they performed 30 seconds of running on a treadmill dynamometer at different stepping frequencies. Using the same calibration procedure, we determined that the static nonlinearity of the treadmill was less than 0.5% and 1%. The natural frequency (treadmill with hammer impact) was 147 Hz in the vertical direction and 135 Hz in the front-rear direction and the middle-side direction. The vertical ground reaction force, belt speed, and flight and contact time were measured at a sampling frequency of 500 Hz. For each speed, all values are averaged over 10 consecutive steps.
Ground Run: 10 young men who are elite mid-range runners voluntarily run more than 10m-meter platforms at 4, 5, 6 and 7 m-s-1 and maximum run speed. The speed is measured by two pairs of photocells placed at each end of the force platform. At a sampling rate of 1.8 kHz, the vertical ground reaction force is measured at each speed and the flight and contact times are one step.
This entry was posted on February 4, 2017 Fitness