When lift requirement is in excess of 50#, lift assistance (2 person) and/or transfer device is required.
Essential – Absolute Necessity.
Marginal – Minimal Necessity.
Constantly – 5.5 to 8 hours or more or 200 reps/shift.
Frequently – 2.5 to 5.5 hours or more or 32-200 reps/shift.
Occasionally – 0.25 to 2.5 hours or 2-32 reps/shift.
Rarely – Less than 0.25 hours or less than 2 reps/shift.