Figure 2.

In-Synergy Position for Knee Flexion Practice. Panel (a) is the start position of the exercise. The position is shown from a semi-aerial view, looking down on the exercise board (powder board with short wooden legs to hold the board off the mat and off the uninvolved leg, which is resting on the mat). The position of training is side-lying with the uninvolved leg resting on the mat. The involved leg is resting on the top of the exercise board. The in-synergy start position for knee flexion practice is with the joint(s) contiguous to the knee (hip and ankle) in a flexed position. Panel (b) shows the end position of the knee flexion exercise, with the knee as fully flexed as can be performed. The hip is in a flexed position throughout (with permission, JRRD, 2012, Daly et al. [31]).