Showing papers by "Mohamad Parnianpour published in 2016"
TL;DR: Coordination pattern and variability could be influenced by trunk flexion-extension conditions and was higher during asymmetric and low velocity conditions (p<0.001); however, there was less adaptation in the DP for the CNSLBP group, as shown by interactions of Group by Load.
55 citations
TL;DR: Compulsory ergonomic lifting training courses could be proposed for workers and regulations adjusting an upper limit for maximum baggage weight must be also enacted in order to improve occupational health and prevent the prevalence of increasing MSDs.
Abstract: Objectives. Musculoskeletal disorders (MSDs) are prevalent among airline baggage handlers due to manual materials handling. In this study, the Nordic musculoskeletal questionnaire (NMQ), the revised National Institute for Occupational Safety and Health (NIOSH) lifting equation, and the University of Michigan 3D Static Strength Prediction Program™ (3DSSPP) were used to analyze MSDs among baggage handlers. Methods. The NMQ was filled out by 209 baggage handlers and 46 arbitrarily selected baggage handlers were evaluated using the NIOSH method and 3DSSPP. Results. The obtained results showed that the most common MSDs occurred in the lower back region. The next risky regions included knees, neck, and upper back, respectively. The NIOSH results confirmed that the subjects lifted loads heavier than the permitted limit and their lifting postures were inappropriate. The results of the 3DSSPP also indicated that compression forces exceeded the NIOSH limit in these awkward postures. Conclusions. Relying on this stu...
23 citations
TL;DR: The observed increase in the complexity coupled with the decrease in the amount of variability could be explained by the exploratory behavior of postural control system to gather information during difficult postural conditions relative to the easy ones.
16 citations
TL;DR: Computational methods show that the synergies can reduce the complexity of load distributions and allow reduced dimensional space to be used in clinical settings.
8 citations
TL;DR: The model is valid and can be used for simulating exercises with the FLEXI-BAR for excitations in the range of the natural frequency and in combination with AnyBody musculoskeletal modeling software, where various lumbar disc, spinal muscles and hand muscles forces were determined during different FLExI- BAR exercise simulations.
6 citations