Therapeutic Exercises for Impaired Wrist Function with Bill Counting Activity
Since the patient finds counting bills therapeutic and demonstrates good grasping strength, implement task-specific practice focusing on wrist extension movements as the core rehabilitation strategy, incorporating the bill-counting activity itself as functional training. 1, 2
Core Exercise Program
Task-Specific Practice (Primary Intervention)
- Use the bill-counting activity directly as therapeutic exercise, as it represents functional, goal-oriented practice that the patient finds engaging 3
- Perform repeated, challenging practice of this specific activity, as task-specific training improves performance of the practiced action 3
- Progress the difficulty by increasing the number of bills, speed of counting, or adding variations in hand positioning 3
- Continue this activity-based training for 9-12 months depending on functional goals 1, 2
Structured Exercise Regimen
- Perform 2-3 times per week
- Hold static stretches for 10-30 seconds
- Complete 3-4 repetitions for each stretch
- Focus on wrist extension, flexion, and radial/ulnar deviation movements
Resistance Training Progression 1, 2
- Initial phase: Start with low-intensity exercises at 40% of 1-repetition maximum (1-RM)
- Perform 10-15 repetitions per set
- Progression phase: Advance to moderate intensity (41-60% of 1-RM) when 15 repetitions feel only "somewhat difficult" (Borg RPE 12-14)
- Reduce to 8-10 repetitions at the higher intensity
- Target exercises should improve joint mobility, muscle strength, and thumb base stability 3
Hand-Specific Exercise Focus
Exercises should aim at: 3
- Improving joint mobility across all finger and wrist joints
- Building muscle strength in both intrinsic and extrinsic hand muscles
- Enhancing thumb base stability, as the first carpometacarpal joint requires different exercises than interphalangeal joints
The bill-counting activity naturally addresses these goals by requiring fine motor coordination, repetitive grasping and releasing motions, and sustained wrist positioning 4, 5
Critical Management Principles
What to AVOID 1, 2, 6
- Do not use splinting, as it prevents restoration of normal movement and function
- Avoid prolonged positioning of the wrist at end ranges, as this exacerbates symptoms
- Do not discontinue exercises once improvement occurs, as beneficial effects are not sustained when patients stop exercising 3
Monitoring and Progression 1, 2
- Gradually increase resistance or difficulty when current level becomes only "somewhat hard" (Borg RPE 12-14)
- The patient should work to a perceived exertion of 11-14 on the Borg scale during resistance exercises
- Continue rehabilitation for the full 9-12 month period for optimal functional recovery
Practical Implementation Strategy
Integrate the therapeutic bill-counting activity throughout the day: 3
- The activity produces continuous, repetitious motion in functional ranges
- Purposeful activities like bill counting generate significantly higher volumes of movement repetitions compared to isolated ROM exercises 5
- Activities selected for importance and challenge produce more active time (up to 97% of session time) versus traditional exercises (43% of session time) 5
Supplement with formal exercise sessions: 3
- Home-based exercises can be effective after proper instruction
- Multiple supervised sessions per week for several weeks may be beneficial initially
- The frequency and type of exercises (strengthening versus stretching) should be varied
Additional Considerations
Education and assistive devices: 3
- Provide training in ergonomic principles and pacing of activity
- Consider assistive devices to improve self-management if needed
- This care can be delivered by occupational therapists, physical therapists, or trained nurses
Expected outcomes: 3
- Hand exercises produce small but beneficial effects on pain, function, joint stiffness, and grip strength
- Few and non-severe adverse effects are expected
- The patient's existing good grasping strength is a positive prognostic indicator 1