Constraint-Induced Movement Therapy (CIMT)
Improves use of an affected arm/hand by constraining the stronger arm, forcing intensive practice with the weaker limb over a concentrated period.
What Is CIMT?
Constraint-Induced Movement Therapy (CIMT) is an intensive rehabilitation approach for people with weakness or reduced function in one arm. The stronger arm is constrained (usually with a cast, mitt, or sling) while the person intensively practises using the weaker arm.
CIMT is based on the principle of 'learned non-use' — when one hand is weaker, the brain learns to avoid using it, making the weakness worse over time. By constraining the strong hand, CIMT forces the brain to rewire and develop new neural pathways for the weak hand.
Traditional CIMT involves wearing the constraint for 90% of waking hours over 2-3 weeks with 3-6 hours of daily structured practice. Modified protocols use shorter constraint periods and are often used with children.
Who Benefits from CIMT?
cerebral palsy
Highly effective for hemiplegic CP (one-sided weakness). CIMT improves hand function, bimanual skills, and quality of arm use in daily activities.
brain injury
Strong evidence for improving arm function after stroke or traumatic brain injury with one-sided weakness.
spinal cord injury
May benefit individuals with incomplete spinal cord injury who have asymmetric arm function.
What to Expect in a Session
First Session
Assessment of arm function, candidacy screening, and discussion of the intensive protocol. Not all individuals are candidates — sufficient baseline movement in the weaker arm is required.
Ongoing Sessions
Intensive practice of functional tasks — reaching, grasping, releasing, manipulating objects — using the weaker arm while the strong arm is constrained. Activities are structured, repetitive, and progressively challenging.
Your Child's Role
Your child uses their weaker arm intensively for functional and play-based activities. CIMT is demanding, so therapists work hard to keep children motivated.
Caregiver's Role
Caregivers play a major role in CIMT, helping maintain the constraint and encouraging use of the weaker arm throughout the day. This requires significant commitment during the treatment period.
When to Start
Early Childhood (0-5)
Modified CIMT has been used with children as young as 12 months. Early intervention can prevent learned non-use from becoming established.
School Age (6-17)
CIMT camps and intensive programs are effective for school-age children. Summer breaks are often a good time for intensive protocols.
Adults (18+)
CIMT has the strongest evidence base in adult stroke rehabilitation, typically within the first year after stroke but also effective in chronic stages.
General guidance: CIMT requires significant motivation and commitment from the family. Discuss the protocol carefully with your therapist to determine if the timing is right.
| Item | Range | Details |
|---|---|---|
| Initial Assessment | $200–$400 | CIMT candidacy assessment |
| Per Session | $120–$200 | 60-120 minutes |
| Insurance | May be covered under physiotherapy or occupational therapy benefits depending on the provider | |
| Tax Credit | Eligible for Medical Expense Tax Credit (METC) when provided by a registered PT or OT | |
Money-Saving Tips
- Children's rehabilitation hospitals sometimes offer CIMT programs at no cost
- Ask about intensive camp-style CIMT programs which can be more cost-effective than weekly sessions
- University research programs sometimes offer CIMT at reduced rates as part of clinical studies
| Province | Status | Program | Details |
|---|---|---|---|
| BC | No data | — | — |
| AB | Partially Funded | Alberta Health Services | Offered through Glenrose Rehabilitation Hospital and Alberta Children's Hospital as part of rehabilitation programs. |
| SK | No data | — | — |
| MB | No data | — | — |
| ON | Partially Funded | Children's Treatment Centres / OHIP | Available at specialized centres like Holland Bloorview; covered when delivered in hospital or treatment centre settings.(Under 18) |
| QC | No data | — | — |
| NB | No data | — | — |
| NS | No data | — | — |
| PE | No data | — | — |
| NL | No data | — | — |
| NT | No data | — | — |
| NU | No data | — | — |
| YT | No data | — | — |
Evidence & Research
CIMT has strong evidence, particularly for hemiplegic cerebral palsy and post-stroke rehabilitation. Systematic reviews and randomized controlled trials consistently show improvements in arm and hand function. It is one of the most researched and evidence-based rehabilitation interventions available.
Red Flags to Watch For
Be cautious of any provider who:
- The therapist has no specific training in CIMT protocols
- The constraint is causing skin irritation, pain, or significant distress that is not addressed
- There is no structured, intensive practice component — the constraint alone is not sufficient
- The program does not include strategies for maintaining gains after the intensive period ends
- Your child does not meet candidacy criteria (minimum baseline movement) but is enrolled anyway
How to Find a Provider
- 1
Contact your children's rehabilitation hospital — many offer CIMT programs or intensive upper limb camps
- 2
Ask your physiotherapist or occupational therapist about CIMT training and whether they can deliver a modified protocol
- 3
Search for university-based CIMT research programs that may offer treatment as part of clinical studies
- 4
Contact cerebral palsy organizations like the Ontario Federation for Cerebral Palsy for program referrals
- 5
Look for intensive summer camp programs that incorporate CIMT protocols for children
Conditions That Use CIMT
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