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. Author manuscript; available in PMC: 2013 Apr 21.
Published in final edited form as: Exp Brain Res. 2011 Jul 29;213(4):351–361. doi: 10.1007/s00221-011-2777-x

Table 1.

Constant error of the force produced by young and older adults at 2 and 30% MVC with a visual feedback angle of 0.05, 0.5, and 1.5°

0.05° 0.5° 1.5°
2% MVC
 Young 0.656 ± 0.270 0.623 ± 0.255 0.678 ± 0.266
 Older 0.515 ± 0.142 0.326 ± 0.105 0.414 ± 0.135
30% MVC
 Young −0.132 ± 1.618*+ 0.228 ± 1.637 0.304 ± 1.642
 Older −1.216 ± 0.580*+ −0.004 ± 0.497 −0.108 ± 0.497

At 2% MVC, on average, young and older adults exerted slightly greater force than the target. At 30% MVC, older adults undershot the target at the lowest visual feedback angle (0.05°), whereas young adults were, on average, close to the targeted force for all visual angles

*

Significantly different (P<0.05) from 0.5°

+

Significantly different (P<0.05) from 1.5°