Strength Isometric Test: Knee Extension

To test knee extension isometric strength with a Muscle Meter, you can follow these steps:

1. If the massage table allows it, anchor the leg and ankle strap to the supporting structure underneath the table. 
2. Have the client loop their foot through the slack and have them sitting upright on the long edge of the massage table, with their knee resting in less than 20 degrees of extension.
3. Once set, queue the client to extend their knee as best as they can, holding for 2-3 seconds to achieve peak force production.
4. As soon as the client has done this, hit save on the Measurz app and compare to the other side.

It's important to note that proper training and experience with muscle meter are necessary to obtain accurate and reliable results. Additionally, ensure that the patient is in a comfortable and stable position, and that the muscle meter is applied consistently each time to ensure consistent and reliable results.

Normative data for isometric knee extension strength with a handheld dynamometer varies depending on the population being tested and the specific dynamometer used. However, here are some general normative values for knee extension strength in adults:

• For males, the normative value for isometric knee extension strength is around 250-300 Nm (Newton meters).
• For females, the normative value for isometric knee extension strength is around 170-200 Nm (Newton meters).

References:

1. Bohannon RW. Reference values for extremity muscle strength obtained by hand-held dynamometry from adults aged 20 to 79 years. Arch Phys Med Rehabil. 1997;78(3):26-32.
2. Clark BC, Manini TM, Bolanowski SJ, et al. Relative safety of 4 weeks of blood flow-restricted resistance exercise in young, healthy adults. Scand J Med Sci Sports. 2011;21(5):653-662.
3. Kruse RL, Shurtz J, Miles T, Maly MR. Examination of knee extension strength measures: Handheld dynamometry compared to an isokinetic dynamometer. Knee. 2011;18(6):417-421.
4. Reid DA, McNair PJ. Effects of an anterior cruciate ligament injury prevention program on performance in adolescent female soccer players. Scand J Med Sci Sports. 2011;21(3):e542-e548.