David Weir won the men's wheelchair event in 22.30 ahead of Velocity club-mate Tushar Patel, whose time was 22.56.

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One or more wearable motion trackers, connected to a smartphone, deliver real-time 3D joint angles, position and velocity.

ENGADGET: Xsens teases wearable 3D body sensors that won't cost, will track an arm and a leg (video)

This is arguably a fair way to handle community reviews -- weight reviews over time and look for velocity.

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