“…Electromyography (EMG) has shown that reaching exercises performed in a seated position activate the erector spinae and abdominal muscles 5 ) . Furthermore, stability during walking relies on the coordinated activation of the trunk muscles 6 ) , and there is a positive correlation between trunk muscle thickness and walking speed 7 , 8 ) . The transversus abdominis (TrA) is a lateral abdominal muscle that plays a vital role in trunk control 9 ) .…”