The wok head should be tilted toward the employee so that the pants would be inserted up, away from the employee. This would eliminate the wrist flexion. The employee retrieves the pants from the left, double turns and places in the folder. This is repeated for the other leg. The pants are then disposed to the right to the flow through buggy.
Employee uses poor sitting posture.
Any adjustments available on the chair do not appear to have been used. Employees were observed to have the chair far back from the work while leaning forward into the work. This leaning posture was accompanied by repeated torso reciprocating flexion as an aid to feed material through the sewing machine. Repeated torso flexion with force is a causative factor in back pain. Use chairs with adjustable lumbar support, adjustable seat height to allow the employee to have both feet on the floor with thighs parallel to the floor without excessive force on the underside of the thighs.