What Is Potassium? Potassium is a mineral that, among other things, helps muscles contract, helps regulate fluids and mineral balance in and out of body cells, and helps maintain normal blood pressure by blunting the effect of sodium. Potassium also may reduce the risk of recurrent kidney stones and bone loss as we age.
Racking strength, simply explained, is the ability of a square or rectangular (wall) area to maintain its shape under duress. The picture below (from an old federal document testing racking strength) demonstrates what can happens with stress exceeds a wall's racking strength.acking strength, simply explained, is the ability of a square or rectangular (wall) area to maintain its shape under duress. The picture below (from an old federal document testing racking strength) demonstrates what can happens with stress exceeds a wall's racking strength.
Strength tests to measure maximal strength are suitable for many athletes. For the reasons why maximal strength is important to athletic performance, see the strength training programs article. The one repetition maximum (1-RM) is still considered the 'gold standard' of strength assessment by most coaches.esting Procedure. Here is the protocol for 1-RM testing as set out by the National Strength & Conditioning Association: Results. Take your 1-RM weight for the bench press and leg press and divide it by your body weight.