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The increased treadmill speed resulted in a significant increase in the mean step frequency from 118 ± 10 steps per min at 3 mph (i.e., 100% of body weight) to 133 ± 6 at 4.1 mph (i.e., 50% of body weight).
Naturally, to match the VCO2 while reducing the body weight up to 50% of normal required a significant increase in the treadmill speed from 3.0 ± 0.1 to 4.1 ± 0.2 mph, which resulted in a significant (P < 0.05) increase in the mean step frequency (steps per minute) from 118 ± 10 at 3 mph (i.e., 100% of body weight) to 133 ± 6 at 4.1 mph (i.e., 50% of body weight).
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In this paper, the compactness of a newly-paved road is assessed by means of non-destructive Step Frequency Radar (SFR) as an alternative to cores testing and nuclear gauges usually performed in laboratory or on site.
The following dependent variables were assessed: preferred walking speed, walk ratio (step length normalized by step frequency), gait instability (local dynamic stability, Lyapunov exponent method), and acceleration variability (root mean square [RMS]).
A person's pace depends, of course, on both step length and step frequency.
then the step frequency is 100 Hz.
Step frequency benchmark tests to analyze dynamic response of the methods in frequency step condition.
These parameters are: kinetic energy, pelvic sway along the transversal axis, standard deviation of gait periodicity, mean step duration, step length, number of steps during Timed Up & Go test and a number of spectral density distribution parameters such as the frequency of the most prominent spectral density peak.
Step frequency is the number of steps per second (walking cadence).
Mean steps per day are presented.
A Step Activity Monitor (accelerometer) assesses mean steps per day and activity intensity (steps per minute).
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