… Jobs that require static trunk flexion create biomechanical loads on the muscles and soft-tissue
of the lower back, and may contribute to disability caused by low back pain. This paper …

… Within each 55 s work cycle, operators on both tasks spent … trunk flexion, and half (∼25
s) standing (∼55% duty cycle); there was very little within-subject variability in the duty cycle …

… We recorded EMG activity from 16 to 32 ipsilateral limb and trunk muscles in 13 healthy …
segment undergoes at least two cycles of activation in the step cycle, thus supporting the idea of …

… Qu, 2014) have been restricted to short duration lifting cycles and failed to consider the
effects of fatigue. Our findings of increased trunk flexion among the older group are in contrast to …

… in a functional ROM, and (4) flex and extend your trunk (sagittal) as fast as you can comfortably
… , we are measuring their flexing capability with minimal trunk extension. Instructions 2, 3, …

… Maximal voluntary contractions (MVC) in six directions (flexion, extension, left and right
lateral bending and axial rotation) were performed while standing in an isometric trunk …

… trunk flexion, … duty cycle of flexion was not enough to cause further tissue creep. Further
investigation into the disturbance of paraspinal reflexes as a result of various flexion duty cycles …

… trunk muscle activation during prolonged standing has been shown to be typical in people
who experience LBP, intermittent trunk flexion … : (i) Only one duty cycle of sit-stand was tested …

… inertial measurement units provide valid trunk flexion angle measurements. Before … trunk
lean angle from the beginning to end of the load carriage task. Progressive increases in trunk …