Measurements
LENS
Height was measured by a stadiometer (Seca 222, Terre Haute, IN) mounted on the wall and recorded to the nearest 0.5 cmThe geometric figure was recorded using two CASIO Exilim EX-ZR700 high-definition video cameras with the following setup: resolution: 1280 × 720 pixels per inch; frequency: 30 Hz; focal length: 52 mm; sensitivity: ISO 400; aperture: 2.7; shutter. The lens was located at a height of 0.68 m from the ground, and 30 frames per second were used for the recording of gait. These cameras were placed on both sides of the walking path at a different distance of two meters from each otherTwo marks were placed on the footbridge that the participants had to walk on. These marks were placed two meters between them, to contrast the measurement in the video and to obtain the parameter of stride length. The procedure for obtaining the spatiotemporal parameters began with the drawing of a line joining the two marks located on the walkway. Next, we contrasted its measurement in the program (2 m), which allowed us to obtain the stride length with the use of the “line” tool. To obtain the step time, stride time, stance time, and swing time parameters, the “chronometer” tool in the software was used. If it is activated from the initial contact of a foot to the initial contact of the contralateral, we will obtain the step time to calculate cadence. Additionally, if the chronometer is activated from heel strike to toe-off the same limb the stance time will be obtained for individuals. Finally, if measured from the toe-off to heel strike of the same limb, individuals will be measured through the swing timeTo measure gait speed, a six-meter walking speed test was used