title: An introductory study of common grasps used by adults during performance of activities of daily living.
abstract: This paper presents the results of a descriptive survey on human grasps. Sixty-four videos were selected to represent tasks performed in the main areas of activities of daily living (ADL) (personal care, meal preparation, eating, housekeeping, etc.). All the participants were right-handed. Elementary grasps were identified for each hand, and the grasp type (from a 9-type classification), the hands involved, and the duration were registered for each case. The results show that the most commonly used grasps are: pinch, non-prehensile, cylindrical, lateral pinch and lumbrical. The presence of these grasps in the areas of ADL is, however, very different (e.g., pinch is widely used in food preparation and very little in driving). Some grasps were used more frequently with one hand or when both hands were used simultaneously (e.g., special pinch was hardly used by the left hand). Knowing the grasp types most frequently used in ADL is essential to be able to assess grasp rehabilitation processes or hand prostheses development.
authors.affiliation: Departamento de Ingeniería Mecánica y Construcción, Universitat Jaume I, Spain. Electronic address: vergara@uji.es.
authors.forename: Margarita
authors.initials: M
authors.lastname: Vergara
authors.affiliation: Departamento de Ingeniería Mecánica y Construcción, Universitat Jaume I, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: Sancho-Bru
authors.affiliation: Departamento de Ingeniería Mecánica y Construcción, Universitat Jaume I, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Gracia-Ibáñez
authors.affiliation: Departamento de Ingeniería Mecánica y Construcción, Universitat Jaume I, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Pérez-González
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D005260:Female; D018737:Hand Strength; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D012016:Reference Values; D013647:Task Performance and Analysis; D055815:Young Adult
keywords: Daily life activities; Frequency of grasps; Grasp taxonomy; Right and left hand; Simultaneous use of hands