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.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc503834 |
| Date | 08 1900 |
| Creators | Heffner, Kyle Daniels |
| Contributors | Patton, Robert W., Kaman, Robert L., 1941- |
| Publisher | North Texas State University |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | vi, 58 leaves: ill., Text |
| Rights | Public, Heffner, Kyle Daniels, Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved. |
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