Table 1 Comparison of trunk electromyography activities for each exercise

Muscle APTE APTH ASTE F-value P-value
ICT 0.33±0.13 0.45±0.17 0.24±0.08 17.540 0.000
ICL 0.39±0.14 0.54±0.17 0.13±0.06 79.744 0.000
LT 0.29±0.09 0.39±0.12 0.27±0.11 12.472 0.000
ICT/ICL 0.85±0.23 0.84±0.19 2.00±0.79 31.704 0.000
LT/ICL 0.78±0.25 0.73±0.17 2.33±1.07 31.784 0.000
APTE: active prone thoracic extension; APTH: active prone thoracic hyper-extension; ASTE: active sitting thoracic extension; ICT: iliocostalis thoracis; ICL: iliocostalis lumborum; LT: longissimus thoracis. Data are expressed as mean±SD.