The Acute Effects of Intermittent Running on Serum CK and LDH Enzyme Activities in Runners and Non-Runners

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Acute effects of repeated sprinting upon serum creatine kinase (CK), lactic dehydrogenase (LDH), and isozymal activities were studied in five collegiate runners (R_s) and six non-runners (NR_s ). After an intermittent running treadmill test, blood sampling showed three-fold mean increases in CK with no change in LDH in both groups; group differences were insignificant (p>.05). Results suggest (1) intense anaerobic exercise produces moderate enzyme elevations; (2) relatively equivalent exercise intensities are critical to enzyme responses in exercising individuals of varying fitness levels; and (3) exercise-induced enzyme release may be consequential to muscle cell membrane permeability changes from decreased intracellular high-energy ... continued below

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vi, 58 leaves: ill.

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Heffner, Kyle Daniels August 1983.

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  • Heffner, Kyle Daniels

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Acute effects of repeated sprinting upon serum creatine kinase (CK), lactic dehydrogenase (LDH), and isozymal activities were studied in five collegiate runners (R_s) and six non-runners (NR_s ). After an intermittent running treadmill test, blood sampling showed three-fold mean increases in CK with no change in LDH in both groups; group differences were insignificant (p>.05). Results suggest (1) intense anaerobic exercise produces moderate enzyme elevations; (2) relatively equivalent exercise intensities are critical to enzyme responses in exercising individuals of varying fitness levels; and (3) exercise-induced enzyme release may be consequential to muscle cell membrane permeability changes from decreased intracellular high-energy phosphates.

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vi, 58 leaves: ill.

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  • August 1983

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  • May 10, 2015, 6:16 a.m.

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  • Dec. 7, 2016, 2:52 p.m.

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Heffner, Kyle Daniels. The Acute Effects of Intermittent Running on Serum CK and LDH Enzyme Activities in Runners and Non-Runners, thesis, August 1983; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc503834/: accessed April 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .