[article] 
inAmerican Journal of Occupational Therapy > Vol. 67/2 (mars-avril 2013) . - p. 218-227

Titre :	Writing forces associated with fo
Type de document :	texte imprimé
Auteurs :	Heidi SCHWELLNUS ; et al. ; Azadeh KUSHKI ; Heather CARNAHAN
Année de publication :	2013
Article en page(s) :	p. 218-227
Langues :	Anglais (eng)
Mots-clés :	Préhension  Ecriture
Résumé :	OBJECTIVE. We investigated differences in handwriting kinetics, speed, and legibility among four pencil grasps after a 10-min copy task. METHOD. Seventy-four Grade 4 students completed a handwriting assessment before and after a copy task. Grip and axial forces were measured with an instrumented stylus and force-sensitive tablet. We used multiple linear regression to analyze the relationship between grasp pattern and grip and axial forces. RESULTS. We found no kinetic differences among grasps, whether considered individually or grouped by the number of fingers on the barrel. However, when grasps were grouped according to the thumb position, the adducted grasps exhibited higher mean grip and axial forces. CONCLUSION. Grip forces were generally similar across the different grasps. Kinetic differences resulting from thumb position seemed to have no bearing on speed and legibility. Interventions for handwriting difficulties should focus more on speed and letter formation than on grasp pattern.
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[article] Writing forces associated with fo [texte imprimé] / Heidi SCHWELLNUS ; et al. ; Azadeh KUSHKI ; Heather CARNAHAN . - 2013 . - p. 218-227.
Langues : Anglais (eng)
in American Journal of Occupational Therapy > Vol. 67/2 (mars-avril 2013) . - p. 218-227

Mots-clés :	Préhension  Ecriture
Résumé :	OBJECTIVE. We investigated differences in handwriting kinetics, speed, and legibility among four pencil grasps after a 10-min copy task. METHOD. Seventy-four Grade 4 students completed a handwriting assessment before and after a copy task. Grip and axial forces were measured with an instrumented stylus and force-sensitive tablet. We used multiple linear regression to analyze the relationship between grasp pattern and grip and axial forces. RESULTS. We found no kinetic differences among grasps, whether considered individually or grouped by the number of fingers on the barrel. However, when grasps were grouped according to the thumb position, the adducted grasps exhibited higher mean grip and axial forces. CONCLUSION. Grip forces were generally similar across the different grasps. Kinetic differences resulting from thumb position seemed to have no bearing on speed and legibility. Interventions for handwriting difficulties should focus more on speed and letter formation than on grasp pattern.
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