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Introduction to Sports Biomechanics: Analysing Human Movement ...

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MOVEMENT PATTERNS – THE ESSENCE OF SPORTS BIOMECHANICS<br />

Figure 1.18 Three-year-old boy running at his preferred speed. Top left: left foot <strong>to</strong>e-off (0 s); <strong>to</strong>p right: right foot<br />

<strong>to</strong>uchdown (0.08 s); middle left: right foot mid-stance; middle right: right foot <strong>to</strong>e-off (0.24 s); bot<strong>to</strong>m left: left<br />

foot <strong>to</strong>uchdown (0.30 s); bot<strong>to</strong>m right: left foot mid-stance.<br />

until <strong>to</strong>e-off, as the whole support leg lengthens. The ankle then dorsiflexes <strong>to</strong> a neutral<br />

position in the swing phase and plantar flexes slightly just before <strong>to</strong>uchdown. As<br />

you should note from Figures 1.13 <strong>to</strong> 1.19, and from the video clips on the book’s<br />

website, this sequence of movements varies somewhat from person <strong>to</strong> person (see<br />

also, for example, Figure 3.11(b)), with the shoes worn, with running speed, and<br />

between overground and treadmill running. The movement pattern for a child running<br />

(Figure 1.18) is very different from that of an adult.<br />

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