{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T00:20:43Z","timestamp":1773879643070,"version":"3.50.1"},"reference-count":37,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,6,11]],"date-time":"2021-06-11T00:00:00Z","timestamp":1623369600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004281","name":"Narodowe Centrum Nauki","doi-asserted-by":"publisher","award":["2016\/23\/D\/NZ7\/02003"],"award-info":[{"award-number":["2016\/23\/D\/NZ7\/02003"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The aim of this study was to perform a reliability and agreement analysis and to compare lateral abdominal muscles (LAMs) thickness and elasticity results obtained by an experienced operator, by a non-experienced operator, and in an ultrasound imaging probe compression controlled (PCC) condition with minimal force necessary to obtain a proper ultrasound image. The sample consisted of 39 adolescents. An Aixplorer ultrasound scanner was used to evaluate the LAM. The probe in PCC condition was positioned in a prepared probe holder coupled with a pressure sensor. The LAM thickness and elasticity measurements were significantly (p &lt; 0.05) different in the ultrasound PCC condition, compared to results obtained by both examiners. The abdominal oblique external and internal muscle thickness measurements were underestimated and all LAM shear moduli were overestimated during measurements without controlling the probe compression by an external sensor. The intra-class correlation coefficient was excellent in all conditions, but the smallest detectable differences were approximately 43\u201360% lower during the measurements collected in PCC condition. Differences in LAM measurements between PCC and \u2018on-hand\u2019 conditions may be clinically irrelevant when the force applied by the probe is consciously controlled by the examiner. However, during ultrasound measurements of the LAM morphology, the potential under\/over estimation should always be considered when measurements are performed without controlling probe compression by an external sensor.<\/jats:p>","DOI":"10.3390\/s21124036","type":"journal-article","created":{"date-parts":[[2021,6,14]],"date-time":"2021-06-14T22:25:46Z","timestamp":1623709546000},"page":"4036","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Lateral Abdominal Muscles Shear Modulus and Thickness Measurements under Controlled Ultrasound Probe Compression by External Force Sensor: A Comparison and Reliability Study"],"prefix":"10.3390","volume":"21","author":[{"given":"Grzegorz","family":"Miko\u0142ajowski","sequence":"first","affiliation":[{"name":"Musculoskeletal Elastography and Ultrasonography Laboratory, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"},{"name":"Musculoskeletal Diagnostic and Physiotherapy\u2014Research Team, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3446-6920","authenticated-orcid":false,"given":"Ma\u0142gorzata","family":"Pa\u0142ac","sequence":"additional","affiliation":[{"name":"Musculoskeletal Elastography and Ultrasonography Laboratory, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"},{"name":"Musculoskeletal Diagnostic and Physiotherapy\u2014Research Team, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomasz","family":"Wolny","sequence":"additional","affiliation":[{"name":"Musculoskeletal Elastography and Ultrasonography Laboratory, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"},{"name":"Musculoskeletal Diagnostic and Physiotherapy\u2014Research Team, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8542-8123","authenticated-orcid":false,"given":"Pawe\u0142","family":"Linek","sequence":"additional","affiliation":[{"name":"Musculoskeletal Elastography and Ultrasonography Laboratory, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"},{"name":"Musculoskeletal Diagnostic and Physiotherapy\u2014Research Team, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Emami, F., Yoosefinejad, A.K., and Razeghi, M. (2018). Correlations between core muscle geometry, pain intensity, functional disability and postural balance in patients with nonspecific mechanical low back pain. Med. Eng. Phys.","DOI":"10.1016\/j.medengphy.2018.07.006"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1080\/09593985.2018.1441345","article-title":"Ultrasound measurement of abdominal muscles during clinical isometric endurance tests in women with and without low back pain","volume":"35","author":"ShahAli","year":"2019","journal-title":"Physiother. Theory Pract."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"905","DOI":"10.1002\/jum.14427","article-title":"Comparative Study of Abdominal Muscle Thickness on Ultrasonography in Healthy Adolescents and Patients with Low Back Pain","volume":"37","author":"Rahmani","year":"2018","journal-title":"J. Ultrasound Med."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Borna, S., Noormohammadpour, P., Linek, P., Mansournia, M.A., and Kordi, R. (2017). Ultrasound measurements of the lateral abdominal muscle thicknesses in girls with adolescent idiopathic scoliosis. Asian J. Sports Med., 8.","DOI":"10.5812\/asjsm.32274"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"452","DOI":"10.1164\/ajrccm.158.2.9710116","article-title":"Neck and abdominal muscle activity in patients with severe thoracic scoliosis","volume":"158","author":"Estenne","year":"1998","journal-title":"Am. J. Respir. Crit. Care Med."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"65","DOI":"10.3233\/BMR-169667","article-title":"A comparison of ultrasonography measurement on the abdominal muscle thickness between adolescent idiopathic scoliosis and healthy subjects","volume":"31","author":"Kim","year":"2018","journal-title":"J. Back Musculoskelet. Rehabil."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"224","DOI":"10.5606\/tftrd.2017.333","article-title":"Side differences of the lateral abdominal wall in supine rest position in mild adolescent idiopathic thoracolumbar scoliosis","volume":"63","author":"Linek","year":"2017","journal-title":"Turkish J. Phys. Med. Rehabil."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1097\/BSD.0000000000000055","article-title":"Ultrasound Assessment of the Abdominal Muscles at Rest and during the ASLR Test among Adolescents with Scoliosis","volume":"30","author":"Linek","year":"2017","journal-title":"Clin. Spine Surg."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1589\/jpts.27.465","article-title":"Ultrasound evaluation of the symmetry of abdominal muscles in mild adolescent idiopathic scoliosis","volume":"27","author":"Linek","year":"2015","journal-title":"J. Phys. Ther. Sci."},{"key":"ref_10","first-page":"453","article-title":"Inter-tester and intra-tester reliability of ultrasound imaging measurements of abdominal muscles in adolescents with and without idiopathic scoliosis: A case-controlled study","volume":"24","author":"Yang","year":"2014","journal-title":"Biomed. Mater. Eng."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"6026","DOI":"10.1038\/s41598-021-85552-4","article-title":"Shear wave elastography of the lateral abdominal muscles in C-shaped idiopathic scoliosis: A case\u2013control study","volume":"11","author":"Linek","year":"2021","journal-title":"Sci. Rep."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"185","DOI":"10.14366\/usg.16053","article-title":"Current status of musculoskeletal application of shear wave elastography","volume":"36","author":"Ryu","year":"2017","journal-title":"Ultrasonography"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"102105","DOI":"10.1016\/j.msksp.2019.102105","article-title":"Influence of phase of respiratory cycle on ultrasound imaging of deep abdominal muscle thickness","volume":"46","author":"Amerijckx","year":"2020","journal-title":"Musculoskelet. Sci. Pract."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1159","DOI":"10.1016\/j.pmrj.2016.05.007","article-title":"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","volume":"8","author":"Ehsani","year":"2016","journal-title":"PMR"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Linek, P., Klepek, A., Wolny, T., and Miko\u0142ajowski, G. (2018). Reliability of the lateral abdominal muscle thickness measurements in idiopathic scoliosis patients. Musculoskelet. Sci. Pract.","DOI":"10.1016\/j.msksp.2018.05.001"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1551","DOI":"10.1016\/j.ultrasmedbio.2019.03.001","article-title":"Supersonic Shear Imaging for Quantification of Lateral Abdominal Muscle Shear Modulus in Pediatric Population with Scoliosis: A Reliability and Agreement Study","volume":"45","author":"Linek","year":"2019","journal-title":"Ultrasound Med. Biol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1049","DOI":"10.7863\/ultra.33.6.1049","article-title":"Reliability of B-mode sonography of the abdominal muscles in healthy adolescents in different body positions","volume":"33","author":"Linek","year":"2014","journal-title":"J. Ultrasound Med."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"114","DOI":"10.1016\/j.math.2016.01.004","article-title":"Measuring ultrasound images of abdominal and lumbar multifidus muscles in older adults: A reliability study","volume":"23","author":"Wilson","year":"2016","journal-title":"Man. Ther."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1016\/j.pmrj.2014.07.007","article-title":"Intra-rater reliability of B-mode ultrasound imaging of the abdominal muscles in healthy adolescents during the active straight leg raise test","volume":"7","author":"Linek","year":"2015","journal-title":"PMR"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1002\/jum.14661","article-title":"Reliability of Real-time Ultrasound Imaging for the Assessment of Trunk Stabilizer Muscles: A Systematic Review of the Literature","volume":"38","author":"Taghipour","year":"2019","journal-title":"J. Ultrasound Med."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1018","DOI":"10.1016\/j.ultrasmedbio.2015.12.002","article-title":"Reliability of Abdominal Muscle Stiffness Measured Using Elastography during Trunk Rehabilitation Exercises","volume":"42","author":"MacDonald","year":"2016","journal-title":"Ultrasound Med. Biol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1016\/j.jmpt.2018.11.034","article-title":"Intrarater Reliability of Shear Wave Elastography for the Quantification of Lateral Abdominal Muscle Elasticity in Idiopathic Scoliosis Patients","volume":"43","author":"Linek","year":"2020","journal-title":"J. Manip. Physiol. Ther."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1111\/j.1469-7580.2008.00946.x","article-title":"Abdominal muscle size and symmetry at rest and during abdominal hollowing exercises in healthy control subjects","volume":"213","author":"Mannion","year":"2008","journal-title":"J. Anat."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"775","DOI":"10.7863\/ultra.16.03086","article-title":"Body mass normalization for ultrasound measurements of adolescent lateral abdominal muscle thickness","volume":"36","author":"Linek","year":"2017","journal-title":"J. Ultrasound Med."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1055\/s-0033-1335205","article-title":"EFSUMB Guidelines and Recommendations on the Clinical Use of Ultrasound Elastography. Part 1: Basic Principles and Technology","volume":"34","author":"Bamber","year":"2013","journal-title":"Ultraschall Med. Eur. J. Ultrasound"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1177\/0161734618793837","article-title":"Evaluation of the Effect of Tissue Compression on the Results of Shear Wave Elastography Measurements","volume":"40","author":"Vachutka","year":"2018","journal-title":"Ultrason. Imaging"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"895","DOI":"10.7863\/jum.2012.31.6.895","article-title":"Effects of Precompression on Elasticity Imaging of the Breast","volume":"31","author":"Barr","year":"2012","journal-title":"J. Ultrasound Med."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"320","DOI":"10.5507\/bp.2017.024","article-title":"Shear wave elastography parameters of normal soft tissues of the neck","volume":"161","author":"Herman","year":"2017","journal-title":"Biomed. Pap."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Hirayama, K., Akagi, R., and Takahashi, H. (2015). Reliability of ultrasound elastography for the quantification of transversus abdominis elasticity. Acta Radiol. Short Rep., 4.","DOI":"10.1177\/2058460115603420"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"118","DOI":"10.1016\/j.jshs.2015.10.002","article-title":"Assessment of the abdominal muscles at rest and during abdominal drawing-in manoeuvre in adolescent physically active girls: A case\u2013control study","volume":"6","author":"Linek","year":"2017","journal-title":"J. Sport Heal. Sci."},{"key":"ref_31","first-page":"127","article-title":"Developing criteria for establishing interrater reliability of specific items: Applications to assessment of adaptive behavior","volume":"86","author":"Cicchetti","year":"1981","journal-title":"Am. J. Ment. Defic."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1191\/026921598672178340","article-title":"Reliability of assessment tools in rehabilitation: An illustration of appropriate statistical analyses","volume":"12","author":"Rankin","year":"1998","journal-title":"Clin. Rehabil."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"957","DOI":"10.1016\/j.ultrasmedbio.2005.03.012","article-title":"Investigation of the effect of subcutaneous fat on image quality performance of 2D conventional imaging and tissue harmonic imaging","volume":"31","author":"Browne","year":"2005","journal-title":"Ultrasound Med. Biol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1121\/1.1336896","article-title":"Empirical relationships between acoustic parameters in human soft tissues","volume":"1","author":"Mast","year":"2000","journal-title":"Acoust. Res. Lett. Online"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1179","DOI":"10.1148\/rg.294085199","article-title":"US Artifacts","volume":"29","author":"Feldman","year":"2009","journal-title":"RadioGraphics"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1043","DOI":"10.1111\/j.1478-3231.2010.02258.x","article-title":"Feasibility of liver transient elastography with FibroScan\u00ae using a new probe for obese patients","volume":"30","author":"Vergniol","year":"2010","journal-title":"Liver Int."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"433","DOI":"10.2217\/iim.11.41","article-title":"What challenges must be overcome before ultrasound elasticity imaging is ready for the clinic?","volume":"3","author":"Palmeri","year":"2011","journal-title":"Imaging Med."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/12\/4036\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:13:21Z","timestamp":1760163201000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/12\/4036"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,11]]},"references-count":37,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2021,6]]}},"alternative-id":["s21124036"],"URL":"https:\/\/doi.org\/10.3390\/s21124036","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,6,11]]}}}