Analysis of length of finger segments with different hand postures to enhance glove design. (July 2021)

• Record Type: Journal Article
• Authors: Yu, Annie; Yick, Kit-lun; Wong, Sin-tung
• Is Part Of: Applied ergonomics. Volume 94(2021)
• Publication Date: 2021-07
• Subjects: Proportion of finger segments -- Hand posture -- Glove displacement; Human engineering -- Periodicals; 620.82
• DOI: 10.1016/j.apergo.2021.103409
• Languages: English
• ISSNs: 0003-6870

Abstract

Abstract: It is important to understand how the hand and fingers elongate and contract with hand posture for optimally fitting and comfortable gloves. Nevertheless, the measurement and analysis of the finger segments for glove designs remain largely neglected. Here, the length and proportion of the finger segments when splayed and during gripping, and between the dorsal and palm sides of 30 participants are 3D scanned and analysed. The full digit lengths change by 7.6–11.9% with hand posture, but the finger segment changes are not proportional. The ratios of the fingertip to distal interphalangeal joint/full digit, and fingertip to the proximal interphalangeal joint/full digit, are important variables. The results are validated with 10 more subjects based on ratings of a ready-to-wear sports glove. Inaccurate proportioning of the finger regions causes shifting which results in displacement and discomfort. This research contributes to glove pattern engineering, with a focus on the finger segments. Highlights: Finger segments do not increase in proportion with finger length. The proportion of finger segments differs on the palm and dorsal sides. The finger length and ratio when hand is splayed and during gripping are significantly correlated. Improper proportioning of the finger segments causes glove displacement and a poor fit.