Levels of serum creatine kinase and myoglobin in women after two isometric exercise conditions. Journal Article uri icon

Overview

abstract

  • The purpose of this study was to measure serum creatine kinase (CK) activity and serum myoglobin (MG) concentrations in women after two unilateral isometric knee extension exercises. Forty maximal voluntary contractions (MVC) were held for 10 s, with either a 5 s (10:5) or 20 s 10:20 exercise (349.4 +/- 66.1 mU . ml-1) and 6 h and MG values were measured pre, 0, 3, 6, and 18 h post exercise. For CK, the highest post exercise values were observed at 6 h following the 10:20 exercise (349.4 +/- 66.1 mU . ml-1) and 6 h following the 10:5 exercise (194.1 +/- 18.6 mU . ml-1). For MG, the highest values were found 3 h after the 10:20 exercise (148.9 +/- 61.7 ng . ml-1) and 6 h after the 10:5 exercise (67.3 +/- 10.9 ng . ml-1). Serum CK and MG levels were significantly greater (p less than 0.01) after the 10:20 exercise bout. The data demonstrate that CK and MG values for women increase significantly after isometric exercise. Since greater tension levels were maintained during the 10:20 exercise it is hypothesized that increased serum CK and MG values after isometric exercise may be related to the tension generated by the contracting muscle.

publication date

  • January 1, 1986

has restriction

  • closed

Date in CU Experts

  • October 28, 2013 1:02 AM

Full Author List

  • Kirwan JP; Clarkson PM; Graves JE; Litchfield PL; Byrnes WC

author count

  • 5

Other Profiles

International Standard Serial Number (ISSN)

  • 0301-5548

Additional Document Info

start page

  • 330

end page

  • 333

volume

  • 55

issue

  • 3