Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Impact of high-intensity interval training and moderate-intensity continuous training on resting and post-exercise cardiac troponin T concentration.

Nie, J, Zhang, H, Kong, Z, George, KP, Little, JP, Tong, TK, Li, F and Shi, Q (2017) Impact of high-intensity interval training and moderate-intensity continuous training on resting and post-exercise cardiac troponin T concentration. Experimental Physiology. ISSN 1469-445X

[img] Text
Impact of high-intensity interval training and moderate-intensity continuous training on resting and post-exercise cardiac troponin T concentration..pdf - Accepted Version
Restricted to Repository staff only until 16 December 2018.

Download (1MB)

Abstract

We evaluated the influence of 12 weeks high-intensity interval training (HIIT, repeated 4-min cycling at 90% V̇O2max interspersed with 3-min rest, 200-300 KJ/session, 3-4 days wk-1 ) and work-equivalent moderate-intensity continuous training (MICT, continuous cycling at 60% V̇O2max ) on resting cardiac troponin T (cTnT) as well as exercise-induced cTnT appearance. Forty-eight sedentary obese young women were randomly assigned to HIIT, MICT, or a control group. V̇O2max and body composition were measured before and after training. At baseline, cTnT was assessed using a high-sensitivity assay at rest and immediately, 2 h and 4 h after 45-min cycling at 60% V̇O2max . After a 12-wk training period, cTnT was assessed before and after 45-min cycling at the same relative and absolute intensities as before training. Training led to higher V̇O2max and lower fat mass in both HIIT and MICT (all P < 0.05). Before training, cTnT was significantly elevated in all three groups (35 to 118%, all P < 0.05) with acute exercise. After training both resting and post-exercise cTnT levels (same relative intensity) were similar to pre-training values. In contrast, post-exercise cTnT (same absolute intensity, which represented a smaller exercise stimulus) was not elevated from rest in both HIIT and MICT groups. In conclusion, 12 weeks of either HIIT or MICT largely abolished the elevation of post-exercise cTnT concentration when exercise was performed at the same absolute intensity. There was, however, no impact of training on resting cTnT or post-exercise cTnT appearance for exercise performed at the same relative intensity. This article is protected by copyright. All rights reserved.

Item Type: Article
Additional Information: This is the accepted version of the following article: Nie, J., Zhang, H., Kong, Z., George, K., Little, J. P., Tong, T. K., Li, F. and Shi, Q. (), Impact of high-intensity interval training and moderate-intensity continuous training on resting and post-exercise cardiac troponin T concentration. Exp Physiol. Accepted Author Manuscript. doi:10.1113/EP086767, which has been published in final form at http://dx.doi.org/10.1113/EP086767
Uncontrolled Keywords: 0606 Physiology, 1116 Medical Physiology, 1106 Human Movement And Sports Science
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Wiley
Related URLs:
Date Deposited: 10 Jan 2018 12:12
Last Modified: 10 Jan 2018 12:12
DOI or Identification number: 10.1113/EP086767
URI: http://researchonline.ljmu.ac.uk/id/eprint/7798

Actions (login required)

View Item View Item