STRENGTH TRAINING MACHINE DRILL, EXERCISE 12: TRUNK EXTENSION
Purpose: This exercise develops strength in the low back muscles (Figure 6-54).
Starting Position: Sit in the machine, leaning slightly forward, with the back firmly against the padded lever arm. Select the appropriate weight and ensure the pin is secure in the weight stack. The hands grip the support bars using a neutral, closed-grip. The head is in a neutral position with the eyes looking straight ahead.
- Raise the upper body and continue extending the trunk, moving to the supine position.
- Return to the starting position.
Figure 6-54. Trunk extension
- Keep the head and neck in a neutral position.
- Exhale on count 1 and inhale on count 2.
Precautions: Do not jerk into position. Keep the hips and low back in contact with the pads throughout the exercise.