APPROXIMATE LOAD ON L3 DISC IN 70KG INDIVIDUAL IN VARIOUS POSITIONS, MOVEMENTS, MANOEUVRES AND EXERCISES
ACTIVITY LOAD (KG)
Lying Flat on Back 30
Standing 70
Walking 85
Upright sitting 100
Coughing 110
Jumping 110
Straining 120
Laughing 120
Bending forward 20 120
Sit-Up Exercise with knees bent 180
Lifting of 20kg, back straight, knees bent 210
Lifting of 20kg, back bent, knees straight 340
