What methods is the most effective in determining muscular strength if you do not want to worry about selecting the wrong weight?

The most effective method for determining muscular strength without the concern of selecting the wrong weight is the use of isokinetic testing. This technique measures the force exerted by muscles at a constant speed, allowing for accurate assessment without the need for predetermined weights. Additionally, 1-repetition maximum (1RM) testing can also be adapted using estimation formulas based on submaximal lifts, providing a safer alternative while still yielding reliable strength estimates.