Motor Performance of Dominant and Non-dominant Hand in Right-handed and Left-handed Children
Journal Title: Journal of Medical Science And clinical Research - Year 2018, Vol 6, Issue 9
Abstract
Handedness is a trait of unequal distribution of fine motor skills between the right and left hands. Earlier studies showed that the percentage of dominant hand superiority decreased with age, and the non-dominant hand motor performance improves and equalizes with the dominant hand. This is linked to the establishment of inter-hemispheric connectivity. This study explores the neuro-motor development pattern in children aged 10 to 14 years, This study evaluates and compares motor performance and hand preference in children aged 10-14 years thereby exploring the neuro-motor development pattern in this age group. 100 students (90 right-handed and 10 left-handed in accordance with the universal incidence of handedness) were the subjects. Three reliable measures of motor performance have been used in this study. Hand grip strength, finger tapping and hand steadiness were tested using dynamometer, mechanical tapper and arm-hand steadiness machine respectively. The results show that the dominant hand significantly outperforms the nondominant hand on all three measures in the same individual. The study indicates that among children aged between 10 to 14 years, the lateral differences are still present. And suggest that the age group when the right-left differences decreases may be used as a marker for maturation of inter-hemispheric connectivity. This study also shows that the performance asymmetries between the dominant and non-dominant hand of left-handers are similar to that of right-handers. This may imply that the different patterns of lateralization (homogeneous and heterogeneous) and its extent have not been established in right- and left-handers of this age group.
Authors and Affiliations
Dr Mahantha M
Keywords
Related Articles
- EP ID EP513988
- DOI -
- Views 82
- Downloads 0
Awareness about Occupational Exposure for Blood Borne Infections among Medical and Dental Students
Occupational exposure to blood and body fluids has an increased risk for acquiring blood-borne infections. Needle stick injury poses one of the greatest risks for medical personnel. The study was conducted to know the aw...
Hydatid Cyst in Lung- A Rare Case Report
Hydatid cyst is the cystic space occupying lesion caused by echinococcus .Cystic echinococcosis is a zoonosis caused by larval stage of E. granulosus .Other less common species are vogeli, oligarthrus, multilocularis. In...
Hyponatremia in Congestive Cardiac Failure
Hyponatremia is the most common electrolyte abnormality in hospitalized patients with congestive cardiac failure. The prevalence in hospitalized patients is 20 – 25%. This study was done in RMMCH among congestive cardiac...
Open reduction and internal fixation of talar fractures using various approaches and its outcome: A case series study
Introduction: Talus fractures are common in injuries of high-energy mechanisms and also with other musculoskeletal injuries and systemic trauma. Treating talus fracture in the multiple injured patient is a challenge. Var...
The Reliability of the Cerebroplacental Ratio in the Prediction of Perinatal Outcome in IUGR Babies
Introduction: IUGR complicates up to 10%of pregnancies. Cerebroplacental ratio (CPR-MCA PI/ Umbilical artery PI) is emerging as a good tool for the prediction of perinatal adverse outcomes in IUGR babies. We attempted to...