Delayed onset muscle soreness following repeated bouts of downhill running. Journal Article uri icon



  • Perceived muscle soreness ratings, serum creatine kinase (CK) activity, and myoglobin levels were assessed in three groups of subjects following two 30-min exercise bouts of downhill running (-10 degrees slope). The two bouts were separated by 3, 6, and 9 wk for groups 1, 2, and 3, respectively. Criterion measures were obtained pre- and 6, 18, and 42 h postexercise. On bout 1 the three groups reported maximal soreness at 42 h postexercise. Also, relative increases in CK for groups 1, 2, and 3 were 340, 272, and 286%, respectively. Corresponding values for myoglobin were 432, 749, and 407%. When the same exercise was repeated, significantly less soreness was reported and smaller increases in CK and myoglobin were found for groups 1 and 2. For example, the percent CK increases on bout 2 for groups 1 and 2 were 63 and 62, respectively. Group 3 demonstrated no significant difference in soreness ratings, CK activities, or myoglobin levels between bouts 1 and 2. It was concluded that performance of a single exercise bout had a prophylactic effect on the generation of muscle soreness and serum protein responses that lasts up to 6 wk.

publication date

  • September 1, 1985

has restriction

  • closed

Date in CU Experts

  • October 28, 2013 1:02 AM

Full Author List

  • Byrnes WC; Clarkson PM; White JS; Hsieh SS; Frykman PN; Maughan RJ

author count

  • 6

Other Profiles

International Standard Serial Number (ISSN)

  • 8750-7587

Additional Document Info

start page

  • 710

end page

  • 715


  • 59


  • 3