The evaluation of force exertions and muscle activities when operating a manual guided vehicle

Effect of a powered drive on pushing and pulling forces when transporting bariatric hospital beds

“…Laboratory studies have also assessed risk of injury for pushing and pulling tasks, with the majority focused on moving carts (e.g., Boyer et al, 2013;Lin et al, 2010;Glitsch et al, 2007;Hoozemans et al, 2004;Resnick and Chaffin, 1995). Resnick and Chaffin (1995) found that pushing carts weighing more than 225 kg in a straight path resulted in spinal compression forces that exceed the NIOSH recommended limit of 3400 N. Lin et al (2010) observed push and pull forces that far exceeded psychophysical limits when initiating and arresting movement on 220 kg and 240 kg carts. Transporting patients in a hospital bed may impose greater physical demands than those quantified in previous studies of carts because of the weight of hospital beds and the confined spaces within which they must be moved.…”

Effectiveness of Fitting Pressure Garments for Minor and Moderate Burn Patients

“…The skin surface expands and contracts during body movement. Each point has a different maximum pull, especially at the hands, upper arms, elbows, and forearm, and impact on the parts of the body where tension is particularly severe [60,61]. Many studies on the measurement of the human body were concerned with static measurement [7,10,[30][31][32][33][34][35]39].…”

Dynamic push–pull characteristics at three hand-reach envelopes: Applications for the workplace

“…With the shoulder and neck frequently implicated in overexertion injuries related to pushepull activities ( Van der Beek et al, 1993), it is evident that further knowledge regarding the mechanical load on the upper extremities is needed (Hoozemans et al, 1998). Harmful effects of this load may be minimized by exerting the push or pull force in a mechanically favorable manner, utilizing the advantages of perpendicular handle placement and larger reach envelopes (Lin et al, 2010;Seo et al, 2010). Recognizing normal scapular and shoulder muscle balance patterns may aid in matching the proper job assignment to prospective workers when evaluating their ability to perform a seated pushepull task at the workplace.…”