Strength and dexterity of less affected hand of children with unilateral cerebral palsy: a comparison study with normal peers.

Background/aim: A key aspect of hand function is dexterity, which is described as fine voluntary movements used to manipulate small objects during a specific task. The contralateral hand in children with unilateral cerebral palsy (U-CP); is commonly referred to as a "good" and "unimpaired" hand, while others have noted that it has subtle limitations. Therefore, this study aimed to assess and compare between the strength and dexterity of less-affected hand of children with U-CP and the dominant hand of normal peers.

Methods: A sample of 120 volunteer children from both sexes and age ranged from 6 to 10 years participated in this study. Out of the 120 children, sixty were normal typically developing (TD) and sixty children with U-CP. Assessment of fine motor dexterity and grip and pinch strength were carried out by the Functional dexterity test (FDT) and Pneumatic squeeze Blub Dynamometer respectively.

Results: The results showed that there was a significant lower in pinch and grip strength (p < 0.01) and significant higher FDT scores of children with U-CP compared with that of TD children (p = 0.001). Moreover, there was a significant higher functional levels in TD children compared with that of children with U-CP (p < 0.001) with no significant difference between groups in penalty distribution (p > 0.05).

Conclusion: Children with U-CP underperformed with their less-affected hand than the dominant hand of TD age matched peers. Future researches on bilateral hand function may be used to determine the best rehabilitation interventions.