Factors affecting minimum push and pull forces of manual carts

Pushing and Pulling in Relation to Musculoskeletal Complaints

“…The diameter of the wheels and the surface appeared to be important factors, next to the weight of the cart which is confirmed by the results of the present study. According to Al-Eisawi et al 2 results of the present study can be generalised to using carts with hard rubber wheels on a tile or asphalt surface, which is commonly used in, for instance, distribution centres.…”

“…However, the absolute level of the exerted forces and mechanical load might be different for situations with different carts and surfaces. Recently, Al-Eisawi et al 2 reported on minimum exerted forces required to push or pull carts. The diameter of the wheels and the surface appeared to be important factors, next to the weight of the cart which is confirmed by the results of the present study.…”

“…2 i prospective study on ow back and shoulder complaints imong workers with pushing and pulling tasks Yiarco J.M. Hoozemans illard J. van der Beek '" Objectives Low back and shoulder complaints were examined in relation to the selfreported and objectively assessed exposure to work-related pushing/pulling in a prospective study.…”

Biomechanical and Physiological Analyses of a Luggage-Pulling Task

“…Additionally, the 15 cm wheels required 6% less energy expenditure. It is well known that large wheels reduce physical stress on a user of operating manual vehicles [22][23][24][25][26] . Al-Eisawi et al 26) calculated the coefficients of rolling friction between wheels and several floor types with Eq.…”

“…Large physical workloads are required when manual vehicles are maneuvered on a carpeted floor due to large rolling friction between wheels and the floor 23,26,31,34) . In this study, the downward and sideward reaction forces increased at the right arm and handle joints on the car- peted floor.…”