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The cTnT response to acute exercise at the onset of an endurance training program: evidence of exercise preconditioning?
Zhang,Haifeng1,2; Nie,Jinlei3; Kong,Zhaowei4; Cao,Wenling1; Zhu,Xiangui1; Zheng,Ziwei1; George,Keith5
2019-04-09
Source PublicationEuropean Journal of Applied Physiology
ISSN14396319
Volume119Issue:4Pages:847-855
AbstractPurpose: Exercise induces a cardioprotective effect referred to as “preconditioning”. Whether the preconditioning impacts upon the cardiac troponin T (cTnT) response to subsequent exercise bouts is unclear. This study investigated the effects of an initial exercise bout, a second exercise bout 48 h later, as well as subsequent exercise every 48 h for 4 days or a single identical exercise bout after 8 days of inactivity gap on cTnT response to acute exercise. Methods: Twenty-eight sedentary overweight young women were randomly assigned to either six bouts of exercise each separated by 48 h or three bouts of exercise with 48 h between the first two bouts and 8 days between the second and third bouts. All exercise bouts were identical (60% V˙ O , 200 kJ) and the total testing period (10 days) was the same for both groups. cTnT was assessed before and after the 1st, 2nd, and final exercise bouts. Results: cTnT increased (129%, P < 0.05) after the first bout of exercise in both groups (peak post-exercise cTnT, median [range], ng l : 3.43[< 3.00−27.26]) with no between-group differences in the response. The second exercise bout had no significant (P > 0.05) effect on post-exercise cTnT (< 3.00[< 3.00−21.96]). The final exercise bout resulted in an increase (190%, P < 0.05) in cTnT (4.35[< 3.00−13.05]) in both groups. Conclusions: A single bout exercise resulted in a temporary blunting of cTnT response to acute exercise 48 h later. The effect of exercise preconditioning was not preserved, regardless of whether followed by repeated exercise every 48 h or a cessation of exercise for 8 days.
KeywordCardiac biomarker Cardiac troponin T Endurance exercise Exercise preconditioning
DOI10.1007/s00421-019-04074-0
URLView the original
Language英语
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Education
Corresponding AuthorNie,Jinlei
Affiliation1.Physical Education College,Hebei Normal University,,Shijiazhuang,China
2.Provincial Key Lab of Measurement and Evaluation in Human Movement and Bio-Information,,Shijiazhuang,China
3.School of Physical Education and Sports,Macao Polytechnic Institute,,Macao
4.Faculty of Education,University of Macau,,Macao
5.Research Institute for Sport and Exercise Sciences,Liverpool John Moores University,,Liverpool,United Kingdom
Recommended Citation
GB/T 7714
Zhang,Haifeng,Nie,Jinlei,Kong,Zhaowei,et al. The cTnT response to acute exercise at the onset of an endurance training program: evidence of exercise preconditioning?[J]. European Journal of Applied Physiology,2019,119(4):847-855.
APA Zhang,Haifeng.,Nie,Jinlei.,Kong,Zhaowei.,Cao,Wenling.,Zhu,Xiangui.,...&George,Keith.(2019).The cTnT response to acute exercise at the onset of an endurance training program: evidence of exercise preconditioning?.European Journal of Applied Physiology,119(4),847-855.
MLA Zhang,Haifeng,et al."The cTnT response to acute exercise at the onset of an endurance training program: evidence of exercise preconditioning?".European Journal of Applied Physiology 119.4(2019):847-855.
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