Use the drop-down tool to select the word or phrase that completes each sentence.When your muscles lengthen and then become shorter, this is known as posture/bendingtwisting/rotatingextension/contraction. When you are working with something, you should face it directly rather than twistingliftingpushing. If you have to liftreachpull something, you should use a ladder. Rather than lifting something, you should try to push or pullextend or contractbend or reach it instead.