{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T04:49:31Z","timestamp":1791175771602,"version":"4.1.0"},"reference-count":22,"publisher":"American Physiological Society","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Applied Physiology"],"published-print":{"date-parts":[[1997,9,1]]},"abstract":"<jats:p>Hodges, Paul W., Simon C. Gandevia, and Carolyn A. Richardson. Contractions of specific abdominal muscles in postural tasks are affected by respiratory maneuvers. J. Appl. Physiol. 83(3): 753\u2013760, 1997.\u2014The influence of respiratory activity of the abdominal muscles on their reaction time in a postural task was evaluated. The electromyographic (EMG) onsets of the abdominal muscles and deltoid were evaluated in response to shoulder flexion initiated by a visual stimulus occurring at random throughout the respiratory cycle. Increased activity of the abdominal muscles was produced by inspiratory loading, forced expiration below functional residual capacity, and a static glottis-closed expulsive maneuver. During quiet breathing, the latency between activation of the abdominal muscles and deltoid was not influenced by the respiratory cycle. When respiratory activity of the abdominal muscles increased, the EMG onset of transversus abdominis and internal oblique, relative to deltoid, was significantly earlier for movements beginning in expiration, compared with inspiration [by 97\u2013107 ms ( P &lt; 0.01) and 64\u201390 ms ( P &lt; 0.01), respectively]. However, the onset of transversus abdominis EMG was delayed by 31\u201354 ms ( P &lt; 0.01) when movement was performed during a static expulsive effort, compared with quiet respiration. Thus changes occur in early anticipatory contraction of transversus abdominis during respiratory tasks but they cannot be explained simply by existing activation of the motoneuron pool.<\/jats:p>","DOI":"10.1152\/jappl.1997.83.3.753","type":"journal-article","created":{"date-parts":[[2017,12,22]],"date-time":"2017-12-22T18:13:01Z","timestamp":1513966381000},"page":"753-760","source":"Crossref","is-referenced-by-count":115,"title":["Contractions of specific abdominal muscles in postural tasks are affected by respiratory maneuvers"],"prefix":"10.1152","volume":"83","author":[{"given":"Paul W.","family":"Hodges","sequence":"first","affiliation":[{"name":"Department of Physiotherapy, The University of Queensland, Brisbane, Queensland 4072; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon C.","family":"Gandevia","sequence":"additional","affiliation":[{"name":"Prince of Wales Medical Research Institute, University of New South Wales, Sydney, New South Wales 2031, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carolyn A.","family":"Richardson","sequence":"additional","affiliation":[{"name":"Department of Physiotherapy, The University of Queensland, Brisbane, Queensland 4072; and"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"24","reference":[{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1971.sp009485"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.1007\/BF00231718"},{"key":"B4","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(87)90052-2"},{"key":"B5","doi-asserted-by":"publisher","DOI":"10.1111\/j.1748-1716.1992.tb09314.x"},{"key":"B6","doi-asserted-by":"publisher","DOI":"10.1007\/BF00228421"},{"key":"B7","doi-asserted-by":"publisher","DOI":"10.1016\/0034-5687(83)90124-X"},{"key":"B8","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.1990.68.3.1010"},{"key":"B9","doi-asserted-by":"publisher","DOI":"10.1002\/cne.903470106"},{"key":"B10","first-page":"132","volume":"84","author":"Floyd W. 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