Reliability of ultrasound in combination with surface electromyogram for evaluating the activity of abdominal muscles in individuals with and without low back pain
Journal of Exercise Rehabilitation. 2014;10(4):230-235 
Altered ultrasonographic activity of abdominal muscles during breathing in males with and without nonspecific chronic low back pain
Journal of Ultrasound. 2020;24(4):457-462
Reliability of ultrasound measurement of automatic activity of the abdominal muscle in participants with and without chronic low back pain
Chiropractic & Manual Therapies. 2013;21(1):
Ultrasound measurement of deep and superficial abdominal muscles thickness during standing postural tasks in participants with and without chronic low back pain
Manual Therapy. 2016;23:98-105
Reliability of ultrasound measurement of the lateral abdominal and lumbar multifidus muscles in individuals with chronic low back pain: A cross-sectional test-retest study
Journal of Bodywork and Movement Therapies. 2021;26:394-400
Ultrasonographic Changes of Abdominal Muscles in Subjects with and without Chronic Low Back Pain
Healthcare. 2022;10(1):123
Ultrasound Measurement of Abdominal Muscle Thickness With and Without Transducer Fixation During Standing Postural Tasks in Participants With and Without Chronic Low Back Pain: Intrasession and Intersession Reliability
PM&R. 2016;8(12):1159-1167
Ultrasound measurement of deep abdominal muscle activity in sitting positions with different stability levels in subjects with and without chronic low back pain
Manual Therapy. 2011;16(4):388-393
Automatic activity of deep and superficial abdominal muscles during stable and unstable sitting positions in individuals with chronic low back pain
Journal of Bodywork and Movement Therapies. 2018;22(3):627-631
Effect of Prior Instructions on Preprogrammed Reactions of Trunk Muscles in Individuals with and without Chronic Low Back Pain
Neurophysiology. 2014;46(1):64-70