TY  - JOUR
A1  - Maurer-Grubinger, Christian
A1  - Holzgreve, Fabian Christian
A1  - Fräulin, Laura
A1  - Betz, Werner
A1  - Erbe, Christina
A1  - Brüggmann, Dörthe
A1  - Wanke, Eileen M.
A1  - Nienhaus, Albert
A1  - Groneberg, Jan David Alexander
A1  - Ohlendorf, Daniela Maren
T1  - Combining ergonomic risk assessment (RULA) with inertial motion capture technology in dentistry - using the benefits from two worlds
T2  - Sensors
N2  - Traditional ergonomic risk assessment tools such as the Rapid Upper Limb Assessment (RULA) are often not sensitive enough to evaluate well-optimized work routines. An implementation of kinematic data captured by inertial sensors is applied to compare two work routines in dentistry. The surgical dental treatment was performed in two different conditions, which were recorded by means of inertial sensors (Xsens MVN Link). For this purpose, 15 (12 males/3 females) oral and maxillofacial surgeons took part in the study. Data were post processed with costume written MATLAB® routines, including a full implementation of RULA (slightly adjusted to dentistry). For an in-depth comparison, five newly introduced levels of complexity of the RULA analysis were applied, i.e., from lowest complexity to highest: (1) RULA score, (2) relative RULA score distribution, (3) RULA steps score, (4) relative RULA steps score occurrence, and (5) relative angle distribution. With increasing complexity, the number of variables times (the number of resolvable units per variable) increased. In our example, only significant differences between the treatment concepts were observed at levels that are more complex: the relative RULA step score occurrence and the relative angle distribution (level 4 + 5). With the presented approach, an objective and detailed ergonomic analysis is possible. The data-driven approach adds significant additional context to the RULA score evaluation. The presented method captures data, evaluates the full task cycle, and allows different levels of analysis. These points are a clear benefit to a standard, manual assessment of one main body position during a working task.
KW  - inertial motion units
KW  - wearable sensors
KW  - human factors
KW  - work place evaluation
KW  - ergonomics
KW  - kinematic analysis
KW  - dentist
KW  - dental assistant
KW  - dental treatment concept
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62464
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-624641
SN  - 1424-8220
VL  - 21
IS  - 12, art. 4077
SP  - 1
EP  - 17
PB  - MDPI
CY  - Basel
ER  -