Psychophysically determined MAWL, MALF and MAW are overestimate the condition of real lifting and underestimate the RPE values.

心物法实验中所估计MAWL、MALFMAW都比实际抬举高，而RPE有低估的情。

This finding shows the limitation of the direct estimation method in developing MAWL although we can obtain the MAWL more quickly and easily.

这发现显示出直接估计法虽能容易的获得MAWL，但在现今发展MAWL下是有其限制的。