Which of the following is a key component of the CIMT for upper extremity rehabilitation?

The key component of Constraint-Induced Movement Therapy (CIMT) for upper extremity rehabilitation is the forced use of the affected limb. This approach is designed to encourage patients to actively use their weaker, affected arm, which can help to promote neural plasticity and recovery following a stroke. By restricting the use of the unaffected limb, individuals are effectively "forced" to engage their affected limb, thereby increasing the frequency and intensity of practice for that limb. This structured practice is crucial for improving motor function and facilitating re-learning of movements.

Forced use is central to CIMT because it addresses learned non-use, where patients may avoid using their affected limb due to difficulty or frustration, which can hinder recovery. The therapy's focus on engaging the affected limb allows for a more significant opportunity for rehabilitation and helps to build confidence in the patient's abilities.

In contrast, extended periods of rest, avoiding the use of the unaffected limb, and reduced training frequency do not align with the principles of CIMT, which emphasize active participation and intensive practice of the affected arm for optimal recovery outcomes.