impact peak

impact peak

the high point of the sharp increase seen on a force-time trace due to impact between two bodies or objects (or one body or object and the ground).
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Traditionally shod rearfoot strikers often take long strides, characterized by a vertical displacement of the center of mass and an impact peak present at approximately 10% to 12% of the stance phase on the vertical ground reaction force curve (Figure 1).
40,42,43) A 25% to 63% reduction in plantar contact area while running in bare feet (44) may counteract the 15% to 33% reduction in impact peak vertical ground reaction forces (9,13) achieved from using a toeheel-toe strike pattern.
Since forefoot and midfoot strikers characteristically lack an impact peak, only subjects with a heel strike while running at the speeds used in this study participated.
But you could also argue that all those steps don't have that impact peak, so that might be injury protective.
The results of impact peak energy and peak force were normalized by dividing them by the average thickness of each specimen.
Figure 17 shows the impact peak energy and peak force dependencies on the rotation velocity of the mold surface.
A second impact peak that began 500 million years ago and continues today coincided with a sudden eruption of new life forms known as the Cambrian explosion.
The problem is even more pronounced for energy shortages where the lack of ability to impact peak demand has necessitated rolling blackouts in California.
The vertical force traces for the SS and XS largely lacked the characteristic impact peak observed during the Run and reported for heel-toe running in the literature (Cavanagh and Lafortune, 1980; Hamill et al.
Ground reaction forces were generally lower and largely lack a vertical impact peak which appears to indicate a reduced risk of overuse injury for the athlete compared to heel-toe running.
For business customers, the company is advocating greater availability of funding for energy-efficiency projects that impact peak consumption periods.
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