Rehabilitation Guidelines for Patients with Nerve Injury and Improving Wrist/Finger Weakness

Initial Assessment and Intervention

The American College of Rehabilitation Medicine recommends implementing resistance training as an adjunct to task-specific practice when therapy time permits or when strengthening activities can be performed outside formal therapy sessions 3, 4, 5
Measure active wrist extension range and finger extension capability to determine treatment eligibility and guide exercise prescription 1
Assess grip strength, which may remain preserved despite limited extension and serves as a baseline for monitoring progress 1
Evaluate the degree of motor recovery using standardized scales to determine appropriate intervention intensity 2

Begin with low-intensity resistance at 40% of 1-repetition maximum (1-RM) with 10-15 repetitions 1
Progress to moderate intensity (41-60% of 1-RM) with 8-10 repetitions as tolerated 1
Perform resistance training 2-3 times per week to allow adequate recovery between sessions 1
Continue rehabilitation for 9-12 months depending on return-to-work goals for optimal functional recovery 1

Do NOT use splinting or immobilization, as this prevents restoration of normal movement and function 1
Avoid prolonged positioning of the wrist at end ranges, which exacerbates symptoms 1
Do not progress resistance too quickly—start with very low intensity during initial sessions to avoid muscle damage, particularly if there has been prolonged denervation 6

For patients with demonstrated impaired muscle contraction and wrist motor impairment, Functional Electrical Stimulation (FES) should be considered as it leads to short-term increases in motor strength and motor control 1, 2
Perform static stretches held for 10-30 seconds with 3-4 repetitions for each stretch 1
Implement flexibility training 2-3 times per week in conjunction with resistance work 1

The presence of voluntary finger extension is a positive prognostic indicator for upper extremity motor recovery 2