THE EFFECT OF TEMPERATURE ON ECCENTRIC CONTRACTION-INDUCED ISOMETRIC FORCE LOSS IN ISOLATED PERFUSED RAT MEDIAL GASTROCNEMIUS MUSCLE

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VASAGHI GHARA MALEKI B.; KESHAVARZ MANSOUR; GHARIBZADEH SHAHRIAR; MARVI H.R.; MOSAYEBNEZHAD J.; EBRAHIMI TAKAMJANI ESMAEIL

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Journal: Tehran University Medical Journal Year:2008 | Volume:66 | Issue:6 Page(s): 388-395

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Title

THE EFFECT OF TEMPERATURE ON ECCENTRIC CONTRACTION-INDUCED ISOMETRIC FORCE LOSS IN ISOLATED PERFUSED RAT MEDIAL GASTROCNEMIUS MUSCLE

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Keywords

ISOLATED PERFUSED MUSCLEQ3

SKELETAL MUSCLEQ2

ECCENTRIC CONTRACTIONSQ3

ISOMETRIC FORCEQ3

GASTROCNEMIUS MUSCLEQ3

TEMPERATUREQ3

Abstract

Background: The typical features of eccentric exercise-induced muscle damage are delayed-onset muscle soreness (DOMS) and prolonged loss of muscle strength. It has been shown that passive warmth is effective in reducing muscle injury. Due to the interaction of different systems in vivo, we used isolated perfuse medial gastrocnemius SKELETAL MUSCLE to study the direct effect of TEMPERATURE on the eccentric contraction-induced force loss.Methods: After femoral artery cannulation of a rat, the left medial GASTROCNEMIUS MUSCLE was separated and then the entire lower limb was transferred into a prewarmed (35oC) chamber. With the chamber TEMPERATURE at 31, 35 and 39oC before and during eccentric contraction. ISOMETRIC FORCE loss was measured after 15 ECCENTRIC CONTRACTIONS (N=7-9).Results: Maximum contraction force reduction has been used as an index for eccentric contraction-induced force loss. In this study eccentric contraction caused a significant reduction in maximum isometric tension (p<0.01), but no significant difference was seen in ISOMETRIC FORCE loss at 31oC and 39oC compared with that at 35oC.Conclusions: Our results suggest that TEMPERATURE changes before or during ECCENTRIC CONTRACTIONS have no effect on eccentric contraction-induced force loss.

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APA: Copy

VASAGHI GHARA MALEKI, B., KESHAVARZ, MANSOUR, GHARIBZADEH, SHAHRIAR, MARVI, H.R., MOSAYEBNEZHAD, J., & EBRAHIMI TAKAMJANI, ESMAEIL. (2008). THE EFFECT OF TEMPERATURE ON ECCENTRIC CONTRACTION-INDUCED ISOMETRIC FORCE LOSS IN ISOLATED PERFUSED RAT MEDIAL GASTROCNEMIUS MUSCLE. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), 66(6), 388-395. SID. https://sid.ir/paper/38330/en

Vancouver: Copy

VASAGHI GHARA MALEKI B., KESHAVARZ MANSOUR, GHARIBZADEH SHAHRIAR, MARVI H.R., MOSAYEBNEZHAD J., EBRAHIMI TAKAMJANI ESMAEIL. THE EFFECT OF TEMPERATURE ON ECCENTRIC CONTRACTION-INDUCED ISOMETRIC FORCE LOSS IN ISOLATED PERFUSED RAT MEDIAL GASTROCNEMIUS MUSCLE. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ)[Internet]. 2008;66(6):388-395. Available from: https://sid.ir/paper/38330/en

IEEE: Copy

B. VASAGHI GHARA MALEKI, MANSOUR KESHAVARZ, SHAHRIAR GHARIBZADEH, H.R. MARVI, J. MOSAYEBNEZHAD, and ESMAEIL EBRAHIMI TAKAMJANI, “THE EFFECT OF TEMPERATURE ON ECCENTRIC CONTRACTION-INDUCED ISOMETRIC FORCE LOSS IN ISOLATED PERFUSED RAT MEDIAL GASTROCNEMIUS MUSCLE,” TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), vol. 66, no. 6, pp. 388–395, 2008, [Online]. Available: https://sid.ir/paper/38330/en

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