Article

Research is needed to understand how upper limb prosthesis users take
advantage of multiple grip options. OBJECTIVES: To quantify usage of DEKA hand
grip patterns during home use and compare patterns of usage at home to test
sessions. STUDY DESIGN: Observational study design. METHODS: Data were collected
from 21 subjects. Engineering data on grip were downloaded at various intervals.
Proportion of time in each grip was calculated for the first 4 weeks of home use,
later months, and test sessions (testing use) and compared statistically across
intervals. Exploratory analyses compared grip proportion by DEKA Arm level and
prior prosthesis use. RESULTS: Three most commonly used grips during home use
were power, pinch open, and lateral pinch. There were no significant differences
between grip use during the first month and later months. Power grip was used 55%
of the time at home and 23% of the time in testing use. Pinch closed, lateral,
and chuck grip were used less at home than in tests. Comparisons were by
configuration level and prosthetic use and no significant differences were found.
CONCLUSION: Patterns of DEKA hand grip usage differed between home and test
environments, suggesting that users relied on fewer grip patterns at home.
Clinical relevance These findings have implications for prosthetic training with
multi-articulating terminal devices.

Langue : ANGLAIS