TY - JOUR
T1 - Influences of gender, hand dominance, and anthropometric characteristics on different types of pinch strength
T2 - A partial least squares (PLS) approach
AU - Maleki-Ghahfarokhi, Azam
AU - Dianat, Iman
AU - Feizi, Hossein
AU - Asghari -Jafarabadi, Mohammad
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/9
Y1 - 2019/9
N2 - The relationships of demographic and anthropometric characteristics (17 dimensions related to the hand, wrist, and arm) with four different pinch strengths (lateral pinch, key pinch, three-jaw chuck pinch and tip-to-tip pinch strengths) were evaluated among 196 (96 males and 100 females) young adults aged 19–30 years. For both dominant and non-dominant hands, the lateral pinch was greatest, followed by the key pinch, three-jaw chuck pinch and tip-to-tip pinch strengths. Mean pinch strengths of the dominant and non-dominant hands of females varied between 62%–78% and 61%–73% of those exerted by males, respectively. Strength of the dominant hand was 5.3%–7.5% stronger than of that of the non-dominant hand, with this difference being generally higher in females than in males. Hand length and forearm length showed the strongest correlation with all types of pinch strengths exerted by both the dominant and non-dominant hands. In the partial least squares analysis, 10 out of 17 anthropometric indices including hand length, forearm length, arm length, middle finger width, thumb length, index finger width, thumb width, wrist depth, palm depth and index finger depth had considerable loadings in the extracted component, explaining 37% of the total variance. These findings can fill the gap in the strength data, or used by health professionals and designers in the field.
AB - The relationships of demographic and anthropometric characteristics (17 dimensions related to the hand, wrist, and arm) with four different pinch strengths (lateral pinch, key pinch, three-jaw chuck pinch and tip-to-tip pinch strengths) were evaluated among 196 (96 males and 100 females) young adults aged 19–30 years. For both dominant and non-dominant hands, the lateral pinch was greatest, followed by the key pinch, three-jaw chuck pinch and tip-to-tip pinch strengths. Mean pinch strengths of the dominant and non-dominant hands of females varied between 62%–78% and 61%–73% of those exerted by males, respectively. Strength of the dominant hand was 5.3%–7.5% stronger than of that of the non-dominant hand, with this difference being generally higher in females than in males. Hand length and forearm length showed the strongest correlation with all types of pinch strengths exerted by both the dominant and non-dominant hands. In the partial least squares analysis, 10 out of 17 anthropometric indices including hand length, forearm length, arm length, middle finger width, thumb length, index finger width, thumb width, wrist depth, palm depth and index finger depth had considerable loadings in the extracted component, explaining 37% of the total variance. These findings can fill the gap in the strength data, or used by health professionals and designers in the field.
KW - Anthropometry
KW - Key pinch
KW - Lateral pinch
KW - Three-jaw chuck pinch
KW - Tip-to-tip pinch
UR - http://www.scopus.com/inward/record.url?scp=85064161196&partnerID=8YFLogxK
U2 - 10.1016/j.apergo.2019.04.002
DO - 10.1016/j.apergo.2019.04.002
M3 - Article
C2 - 31109465
AN - SCOPUS:85064161196
SN - 0003-6870
VL - 79
SP - 9
EP - 16
JO - Applied Ergonomics
JF - Applied Ergonomics
ER -