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Titolo:
MUSCLE LENGTH CHANGES DURING SWIMMING IN SCUP - SONOMICROMETRY VERIFIES THE ANATOMICAL HIGH-SPEED CINE TECHNIQUE
Autore:
COUGHLIN DJ; VALDES L; ROME LC;
Indirizzi:
UNIV PENN,DEPT BIOL PHILADELPHIA PA 19104 UNIV PENN,DEPT BIOL PHILADELPHIA PA 19104 WOODS HOLE OCEANOG INST,COASTAL RES CTR WOODS HOLE MA 02543
Titolo Testata:
Journal of Experimental Biology
fascicolo: 2, volume: 199, anno: 1996,
pagine: 459 - 463
SICI:
0022-0949(1996)199:2<459:MLCDSI>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
POWER OUTPUT; TEMPERATURE; CARP; RECRUITMENT; VELOCITY; FISH;
Keywords:
STENOTOMUS CHRYSOPS; SCUP; SONOMICROMETRY; RED MUSCLE; WHITE MUSCLE; FISH SWIMMING; MUSCLE STRAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
D.J. Coughlin et al., "MUSCLE LENGTH CHANGES DURING SWIMMING IN SCUP - SONOMICROMETRY VERIFIES THE ANATOMICAL HIGH-SPEED CINE TECHNIQUE", Journal of Experimental Biology, 199(2), 1996, pp. 459-463

Abstract

Recent attempts to determine how fish muscles are used to power swimming have employed the work loop technique (driving isolated muscles using their in vivo strain and stimulation pattern). These muscle strains have in turn been determined from the anatomical high-speed cine technique. In this study, we used an independent technique, sonomicrometry, to attempt to verify these strain measurements and the conclusions based on them. We found that the strain records measured from sonomicrometry and the anatomical-cine techniques were very similar. The ratioof the strain measured from sonomicrometry to that from the anatomical-cine technique was remarkably close to unity (1.046+/-0.013, mean +/- S.E.M., N=15, for transducers placed on the muscle surface and corrected for muscle depth, and 0,921-c0,028, N=8, in cases where the transducers were inserted to the average depth of the red muscle). These measurements also showed that red muscle shortening occurs simultaneously with local backbone curvature, unlike previous results which suggested that white muscle shortening during the escape response occurs prior to the change in local backbone curvature.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 19:20:42