The low back pain risks in a beef skinning operation at a high stand kill floor workstation was evaluated. The increases in compressive forces at lower back (L5/S1) between normal slump (back angle 25 degrees, measured in the sagittal plane) and severe (45 degrees ) and between normal slump and very severe (70 degrees ) bent back postures were 387 N or 28% and 616 N or 45%, respectively. The hi...

The influences of body posture and tidal volume (VT) on inter- and intraregional ventilation inhomogeneity were assessed by normalized phase III slope (Sn(III)) analysis of multiple-breath washout recordings of SF(6) and He in 11 healthy men. Washouts with target VT of 750, 1,000, and 1,250 ml were performed standing and supine. A linear-fit method was used to establish the contributions of con...

Objectives: To investigate the relationship between foot posture and plantar arch among adolescent wearers and non-wearers of high-heeled shoes. Methods: Thirty-six female adolescents aged 13 to 20 years were selected and grouped as 16 high-heel nonwearers and 20 high-heel wearers. Foot posture was analyzed using photos, firstly barefoot and, secondly, after wearing previously standardized high...

Currently little is known about how adaptive responses to virtual environments are different between individuals who experience sickness related symptoms and those who do not. It is believed that sensory interactions between visually perceived self-motion and static inertial cues from vestibular and/or proprioceptive sensory systems contribute to the development of adaptation symptoms. The aim ...

For several decades the problem of prevention and correction posture disorders in primary school children has not lost its relevance. Statistics show that 68-94 % students have disorders. A special place classification is occupied by a scoliotic posture. Such statement indicates health improving physical education does fully solve tasks assigned to it. Analysis literature sources allowed us est...