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Influence of angular position on radar gun peak cricket ball speed measurements

Smith, N.D.W. and Burke, D.J. (2021) Influence of angular position on radar gun peak cricket ball speed measurements. Sports Biomechanics .

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The purpose of this study was to determine the agreement in peak ball speed measured using a radar gun and motion capture system then examine the influence of angular position. Peak ball speed was recorded with the radar gun in-line with the ball trajectory (0° offset) and at 5° offsets up to 35°. Agreement between devices was calculated at 0° and for grouped offset bins (0–5°, 10–15°, 20–25°, and 30–35°). At 0°, a strong correlation (r = 0.99) and intraclass correlation coefficient (.984) were observed with a systematic overestimation by the radar gun (1.7 ± 0.8 m/s). The residual speed between devices at the 30–35° offset was significantly different to both 0–5° (p < .001) and 10–15° (p < .001) offsets. The radar gun consistently overestimated peak ball speed up to a ~20° offset and thus can be positioned out of the line-of-throw to avoid obstructions.

Item Type: Journal Article
Murdoch Affiliation(s): Murdoch Applied Sports Science Laboratory
Publisher: Taylor & Francis
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