Premium
Effect of wrist position on grip force sense in healthy adults
Author(s) -
Li Lin,
Li Yanxia,
Gong Rui,
Fu Hao
Publication year - 2020
Publication title -
human factors and ergonomics in manufacturing and service industries
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.408
H-Index - 39
eISSN - 1520-6564
pISSN - 1090-8471
DOI - 10.1002/hfm.20836
Subject(s) - wrist , isometric exercise , ulnar deviation , physical medicine and rehabilitation , position (finance) , proprioception , physical therapy , medicine , psychology , mathematics , anatomy , finance , economics
To achieve a better understanding of the causes of higher rates of musculoskeletal disorders and to develop preventive strategies to decrease the risk of injury and optimally design hand tools, it is necessary to understand the effects of both wrist position and force level on grip force sense. In this study, the effects of both wrist position and force level on grip force sense in healthy males during an ipsilateral force reproduction task were investigated. Twenty healthy subjects were instructed to produce varying levels of target forces (i.e., 10%, 30%, and 50% of maximal voluntary isometric contraction [MVIC]) for five wrist positions (i.e., neutral position, full radial deviation, full ulnar deviation, full‐extension, and full flexion), and to reproduce these forces using the same hand. The results of our study revealed that the absolute error, constant error, and MVIC decreased as the wrist joint angle deviated from the neutral position. Subjects had a more accurate estimation of medium target force (30% MVIC), while low target force (10% MVIC) was overestimated and high target force (50% MVIC) was underestimated, in contrast to most previous studies.