Fig. 3. Maximum sprint velocity as a function of radius for normal curve running (open circles) and tethered running (filled circles). Velocity decreased with decreasing radius. The tether reduced the need to generate centripetal force and increased velocity on the curve, but to magnitudes less than those predicted by Greene (Greene, 1985). Data represent means for five subjects at each condition. Error bars are the s.e.m. for absolute velocities. The broken line indicates mean maximum velocity on straight path (V_o) and the gray band indicates ± s.e.m.