OBJECTIVE The purpose of this study is to determine if an alternative mouse promotes more neutral postures and decreases forearm muscle activity and if training enhances these biomechanical benefits. BACKGROUND Computer mouse use is a risk factor for developing musculoskeletal disorders; alternative mouse designs can help lower these risks. Ergonomic training combined with alternative input d...

Most current applications of digital human figure models for ergonomic assessments of manual tasks focus on the analysis of a static posture. Tools available for static analysis include joint-specific strength, calculation of joint moments, balance maintenance capability, and lowback compression or shear force estimates. Yet, for many tasks, the inertial loads due to acceleration of body segmen...

The potential of digital human modeling to improve the design of products and workspaces has been limited by the time-consuming manual manipulation of figures that is required to perform simulations. Moreover, the inaccuracies in posture and motion that result from manual procedures compromise the fidelity of the resulting analyses. This paper presents a new approach to the control of human fig...

Hand tools described as ergonomic in design are intended to reduce exposure to physical risk factors associated with work-related musculoskeletal disorders. Additionally, using the right tool for the job is believed to reduce exposure and, consequently, risk of disease. Sheet metal workers frequently use a cutting tool called aviation snips when fabricating and installing ductwork. The purpose ...

BACKGROUND Musical performance-associated musculoskeletal disorders (MSD) are a common health problem among professional musicians. Considering the manifold consequences arising for the musicians, they can be seen as a threat for their professional activity. String players are the most affected group of musicians in this matter. Faults in upper body posture while playing the instrument, causing...

conclusions our study revealed a high prevalence of postural disorders especially fhp, rsp and scoliosis among iranian dental staff. the female dentists were less susceptible to fhp and scoliosis. results the prevalence of the forward head posture (fhp), rounded shoulder posture (rsp), scoliosis and hyperlordosis were reported in 85.5%, 68.8%, 18.8% and 17.3% of the participants, respectively. ...

background: work-related musculoskeletal disorders are the most important problems in the health workforce. these discomforts cause many working days losses, increase absenteeism from work, and impose annual economic costs. awkward posture is the most important factor among the risk factors for work-related musculoskeletal disorders. this study aimed at implementing an interventional ergonomic ...

BACKGROUND This study was conducted to evaluate working posture of operating room nurses and its relationship with demographic and job details of this group. METHODS This cross-sectional study was conducted among 147 operating room nurses in Tabriz, Iran using a questionnaire and the Rapid Entire Body Assessment (REBA) checklist. The data were analyzed with SPSS.16 using t test, Pearson corre...

Handwriting is a specific motor task in which the movement is realized by following a precise spatio-temporal sequence. In this process particular care must be placed both in the correct automation of each grapheme and in the ergonomic aspect of the posture. Dysgraphia, representing a learning disability resulting from the difficulty in expressing thoughts in writing, refers to the poor handwri...

As the use of computer-aided ergonomic tools become more prominent in performing ergonomic evaluations early in the design phase, the drive to improve upon the validity, reliability, and accuracy of the technology will increase. Posturing a digital human (DH) in a virtual environment proves to be a challenging task. There are a very large number of possible positions in which the DH can be posi...