Figure 4. Position-matching errors in the vertical plane after concentric exercise.

A, data from a single subject. Matching conditions as in Fig. 3. •, exercised arm as the reference; ○, unexercised arm as the reference. Values on the left before exercise (Pre-ex); values on the right after the exercise (Post-ex). B, pooled data from eight subjects. Values shown as means (± s.e.m) before and after exercise. These have been joined by a solid line for values where the arm to be exercised was the reference and a dashed line where it was the indicator. *Significant differences, before and after exercise.