Handwriting assessment through photogrammetry – dynamic tripod grasp evaluation
DOI:
https://doi.org/10.11606/issn.2238-6149.v24i1p38-47Keywords:
Handwriting, Occupational therapy, Evaluation, PhotogrammetryAbstract
INTRODUCTION: Different grasp patterns can be used for handwriting and the dynamic tripod is the most prevalent among adults. Although it is considered an ideal grasp pattern, there are few studies that analyses the range of motion of hand joints during this activity. OBJECTIVE: To obtain the variations of range of motion in distal upper limb articulations during a handwriting task among healthy adults. METHODS: 50 young adults, right-handed and without impairment in the upper limb had their hands photographed during a handwriting task and analyzed with Postural Assessment Software (SAPO). RESULTS: A common pattern of forearm pronation, abduction of the fi rst interdigital space, fl exion of metecarpophalangeal and proximal interphalangeal joints of the index fi nger was observed among subjects, matching previous studies and descriptions for this grasp
pattern. CONCLUSION: It was possible to establish a standard
postural pattern for handwriting through photogrammetric analysis, demonstrating the applicability of this method for the upper limb.
