{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T07:46:08Z","timestamp":1791272768907,"version":"4.1.0"},"reference-count":0,"publisher":"American Physiological Society","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Cell Physiology"],"published-print":{"date-parts":[[1997,3,1]]},"abstract":"<jats:p> Muscle performance is improved after a brief period of exercise (warm-up). One factor that is known to strongly affect force production is the myoplasmic concentration of inorganic phosphate ([P(i)]). Improved performance after warm-up may therefore be due to a reduction of [P(i)]. Herein, we show that after a warm-up protocol (15 tetani at 2-s intervals), tetanic force is increased by approximately 6% (P &lt; 0.05) and [P(i)] is almost halved (P &lt; 0.05) in isolated mouse soleus muscle. A warm-up protocol with longer intervals (15 tetani at 5-s intervals) reduced tetanic force and did not alter [P(i)]. We conclude that a reduction of [P(i)] contributes to the force-potentiating effect of warm-up. <\/jats:p>","DOI":"10.1152\/ajpcell.1997.272.3.c870","type":"journal-article","created":{"date-parts":[[2017,12,24]],"date-time":"2017-12-24T16:40:01Z","timestamp":1514133601000},"page":"C870-C874","source":"Crossref","is-referenced-by-count":36,"title":["Increased tetanic force and reduced myoplasmic [P(i)] following a brief series of tetani in mouse soleus muscle"],"prefix":"10.1152","volume":"272","author":[{"given":"J. D.","family":"Bruton","sequence":"first","affiliation":[{"name":"Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.","family":"Wretman","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Katz","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"Westerblad","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"24","container-title":["American Journal of Physiology-Cell Physiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.physiology.org\/doi\/pdf\/10.1152\/ajpcell.1997.272.3.C870","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T19:34:10Z","timestamp":1718652850000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.physiology.org\/doi\/10.1152\/ajpcell.1997.272.3.C870"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,3,1]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1997,3,1]]}},"alternative-id":["10.1152\/ajpcell.1997.272.3.C870"],"URL":"https:\/\/doi.org\/10.1152\/ajpcell.1997.272.3.c870","relation":{},"ISSN":["0363-6143","1522-1563"],"issn-type":[{"value":"0363-6143","type":"print"},{"value":"1522-1563","type":"electronic"}],"subject":[],"published":{"date-parts":[[1997,3,1]]}}}