Retraining Postural Responses With Exercises Emphasizing Speed Poststroke

Vicki L. Gray; Larissa M. Juren; Tanya D. Ivanova; S. Jayne Garland

doi:10.2522/ptj.20110432

Figures

Figure 1.

Arm acceleration and biceps femoris muscle electromyographic (EMG) signals during the arm raise task for a representative participant from the stroke group (A) and a representative participant from the control group (B). Traces are an average of the 10 arm raise trials: pre-exercise data represented by thin black line with gray shading, post-exercise data represented by thick black line, and retention data represented by dashed line. The vertical line represents the onset of movement.

Figure 2.

The group means of the vertical ground reaction forces of the stroke group (squares) and the control group (circles) with standard error bars. The stroke group was divided into the symmetrical (Symm) subgroup with ≥45% weight on the paretic leg (diamonds) and the asymmetrical (Asymm) subgroup with <45% weight distribution on the paretic leg (triangles) for the arm raise (A) and load drop tasks (B) for pre-exercise, post-exercise and retention measurements. * Between-group differences, symmetrical and asymmetrical, P<.05; † within-group differences (pre-exercise to post-exercise; pre-exercise to retention), P<.05

Figure 3.

Biceps femoris muscle electromyographic (EMG) signals from a representative participant from the control group and 2 representative participants from the stroke group of the paretic/nondominant side (A) and nonparetic/dominant side (B). Traces are an average of 10 load drop trials: pre-exercise data represented by thin black line with gray shading, post-exercise data represented by thick black line, and retention data represented by dashed line. The vertical line represents the onset of movement.