The trunk lift is measured by determining the distance from the floor to the participant's chin during the lift, with a maximum allowable height of 12 inches.
Here's a breakdown of the measurement process:
- Starting Position: The individual lies face down (prone position) on the floor.
- The Lift: The participant lifts their upper body off the floor using their back muscles. They should aim to lift smoothly and control their movement.
- Measurement: The distance between the floor and the participant's chin is measured at the peak of the lift. This measurement should not exceed 12 inches.
- Trials: Typically, two attempts are allowed, and the better of the two scores is recorded.
- Recording: The measurement is recorded in inches or centimeters, depending on the testing protocol.
Key Considerations:
- Maximum Height: The maximum allowable height for the trunk lift is generally 12 inches. Any lift exceeding this height is usually recorded as 12 inches.
- Proper Form: Emphasize the importance of controlled movement to prevent injury. Jerky or uncontrolled movements should be discouraged.
- Tester Consistency: The person administering the test should be consistent in their measurement technique to ensure accurate results.
- Purpose of the Test: The trunk lift assesses lower back and trunk extensor strength and flexibility. The results can be used to evaluate fitness levels or track progress in rehabilitation programs.
