Abstract The Hybrid Assistive Limb Lumbar Type (HAL) is an active exoskeleton that
provides motion according to the wearer's voluntary drive. It was developed to support back …

The mechanical role of the lumbar posterior ligaments during lifting tasks remains
controversial. This study was designed to assess the ligament and disc contribution in …

Irrespective of the lifting technique (squat or stoop), the lumbar spine posture (more kyphotic
versus more lordotic) adopted during lifting activities is an important parameter affecting the …

This study investigated the effects of initial load height and foot placement instruction in four
lifting techniques: free, stoop (bending the back), squat (bending the knees) and a modified …

Lumbar spine injuries caused by repetitive lifting rank as the most prevalent workplace injury
in the United States. While these injuries are caused by both symmetric and asymmetric …

Objective. To evaluate if chronic low back pain patients perform manual material handling
tasks differently from control subjects. Design. Comparative study using a repeated …

While force-velocity-power characteristics of resistance exercises, such as bench presses
and squats, have been well documented, little attention has been paid to load, force, and …

When picking objects from the floor, low back pain patients often tend to support the upper
body by leaning with one hand on a thigh. While this strategy may reduce back load, this has …

Mathematical models are often used to quantify the overall forces and moments acting on
the lumbar spine. However, if the purpose of the research is to explain how spinal tissues …

Push-up exercises are normally performed to challenge muscles that span upper extremity
joints. However, it is also recognized that push-ups provide an effective abdominal muscle …