div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · nuzzo jl mccaulley go cormie p cavill m mcbride jim 2008 trunk muscle activity during stability ball and free weight exercises journal of strength and conditioning research src=https:reader033vdocumentsusreader033viewer20220420105e71f92967a5a46bda0b8f24html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · nuzzo jl mccaulley go cormie p cavill m mcbride jim 2008 trunk muscle activity during stability ball and free weight exercises journal of strength and conditioning research src=https:reader033vdocumentsusreader033viewer20220420105e71f92967a5a46bda0b8f24html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv