Document Detail


Serum hormone and myocellular protein recovery after intermittent runs at the velocity associated with VO(2max).
MedLine Citation:
PMID:  10541924     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The responses of serum myocellular proteins and hormones to exercise were studied in ten well-trained middle-distance runners [maximal oxygen consumption (VO(2max)) = 69.4 (5.1) ml x kg(-1) x min(-1)] during 3 recovery days and compared to various measures of physical performance. The purpose was to establish the duration of recovery from typical intermittent middle-distance running exercises. The subjects performed, in random, order two 28-min treadmill running exercises at a velocity associated with VO(2max): 14 bouts of 60-s runs with 60 s of rest between each run (IR(60)) and 7 bouts of 120-s runs with 120 s of rest between each run (IR(120)). Before the exercises (pre- exercise), 2 h after, and 1, 2 and 3 days after the exercises, the same series of measurements were performed, including those for serum levels of the myocellular proteins creatine kinase, myoglobin and carbonic anhydrase III (S-CK, S-Mb and S-CA III, respectively), serum hormones testosterone, Luteinizing hormone, follicle-stimulating hormone and cortisol (S-testosterone, S-LH, S-FSH and S-cortisol, respectively) and various performance parameters: maximal vertical jump height (CMJ) and stride length, heart rate and ratings of perceived exertion during an 8-min run at 15 km x h(-1) (SL(15 km x h(-1)), HR(15 km x h(-1)) and RPE(15 km x h(-1)), respectively). Two hours after the end of both exercise bouts the concentration of each measured serum protein had increased significantly (P < 0.001) compared to the pre-exercise level, but there were no changes in SL(15 km x h(-1)) or CMJ. During the recovery days only S-CK was significantly raised (P < 0.01), concomitant with a decrease in CMJ (P < 0.01) and an increase in RPE(15 km x h(-1)) (P < 0.01). Hormone levels remained unchanged compared to the pre-exercise levels during the recovery days and there were no significant differences between the two exercise bouts in any of the observed post-exercise day-to-day responses. With the exception of S-CK, after IR(120) the post-exercise responses returned to their pre-exercise levels within the 3 days of recovery. The present findings suggest that a single 28-min intermittent middle-distance running exercise does not induce changes in serum hormones of well-trained runners during recovery over 3 days, while changes in S-CK, CMJ and RPE(15 km x h(-1)) indicate that 2-3 days of light training may be needed before the recovery at muscle level is complete.
Authors:
T Vuorimaa; T Vasankari; K Mattila; O Heinonen; K Häkkinen; H Rusko
Related Documents :
7563294 - The relationship between critical power and running performance.
9338084 - Times to exhaustion at 90, 100 and 105% of velocity at vo2 max (maximal aerobic speed) ...
23568374 - Sodium phosphate as an ergogenic aid.
1806734 - A double-blind, placebo-controlled study of acetylsalicylic acid (asa) in trained runners.
7304764 - Multiple mechanisms of reactive hyperemia in arterioles of the hamster cheek pouch.
8005864 - Interrelationships between regional blood flow, blood volume, and ventilation in supine...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of applied physiology and occupational physiology     Volume:  80     ISSN:  0301-5548     ISO Abbreviation:  Eur J Appl Physiol Occup Physiol     Publication Date:    1999 Nov-Dec
Date Detail:
Created Date:  1999-11-19     Completed Date:  1999-11-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0410266     Medline TA:  Eur J Appl Physiol Occup Physiol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  575-81     Citation Subset:  IM    
Affiliation:
Sport Institute of Finland, FIN 19120 Vierumäki, Finland. timo.vuorimaa@vierumaki.fi
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Carbonic Anhydrases / blood
Creatine Kinase / blood
Follicle Stimulating Hormone / blood
Hormones / blood*
Humans
Hydrocortisone / blood
Luteinizing Hormone / blood
Male
Muscle Proteins / blood*
Myoglobin / blood
Oxygen Consumption*
Running / physiology*
Testosterone / blood
Chemical
Reg. No./Substance:
0/Hormones; 0/Muscle Proteins; 0/Myoglobin; 50-23-7/Hydrocortisone; 58-22-0/Testosterone; 9002-67-9/Luteinizing Hormone; 9002-68-0/Follicle Stimulating Hormone; EC 2.7.3.2/Creatine Kinase; EC 4.2.1.1/Carbonic Anhydrases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Bilateral organization of physiological tremor in the upper limb.
Next Document:  Oxygen transport in the rat brain cortex at normobaric hyperoxia.