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Impact of high-intensity interval training and moderate-intensity continuous training on resting and postexercise cardiac troponin T concentration
Nie, Jinlei; Zhang, Haifeng; Kong, Zhaowei; George, Keith; Little, Jonathan P.; Tong, Tomas K.; Li, Feifei; Shi, Qingde
2018-03
Conference NameEXPERIMENTAL PHYSIOLOGY
Volume103
Issue3
Pages370-380
Publication Place111 RIVER ST, HOBOKEN 07030-5774, NJ USA
PublisherWILEY
AbstractWe evaluated the influence of 12weeks of high-intensity interval training [HIIT; repeated 4min cycling at 90% of maximal oxygen uptake (V.O2max) interspersed with 3min rest, 200-300kJ per session, 3 or 4days each week] and work-equivalent moderate-intensity continuous training (MICT; continuous cycling at 60% V.O2max) on resting cardiac troponinT (cTnT) and the appearance of exercise-induced cTnT. Forty-eight sedentary obese young women were randomly assigned to HIIT, MICT or a control group. The V.O2max and body composition were measured before and after training. At baseline, cTnT was assessed using a high-sensitivity assay at rest and immediately, 2 and 4h after 45min cycling at 60% V.O2max. After a 12week training period, cTnT was assessed before and after 45min cycling at the same relative and absolute intensities as before training. Training led to higher V.O2max and lower fat mass in both HIIT and MICT groups (all P<0.05). Before training, cTnT was significantly elevated in all three groups (by 35-118%, all P<0.05) with acute exercise. After training, both resting and postexercise cTnT concentrations (same relative intensity) were similar to pretraining values. In contrast, postexercise cTnT (same absolute intensity, which represented a smaller exercise stimulus) was not elevated from rest in both HIIT and MICT groups. In conclusion, 12weeks of either HIIT or MICT largely abolished the postexercise elevation of cTnT concentration when exercise was performed at the same absolute intensity. There was, however, no impact of training on resting cTnT or postexercise appearance of cTnT for exercise performed at the same relative intensity.
Keywordcardiac biomarker high-intensity interval training moderate-intensity continuous training
DOI10.1113/EP086767
URLView the original
Indexed BySCI ; CPCI
Language英语
WOS Research AreaPhysiology
WOS SubjectPhysiology
WOS IDWOS:000426502300012
The Source to ArticleWOS
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
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GB/T 7714
Nie, Jinlei,Zhang, Haifeng,Kong, Zhaowei,et al. Impact of high-intensity interval training and moderate-intensity continuous training on resting and postexercise cardiac troponin T concentration[C]. 111 RIVER ST, HOBOKEN 07030-5774, NJ USA:WILEY,2018:370-380.
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