Impact of high-intensity interval and moderate-intensity continuous exercise on heart rate variability and cardiac troponin

Physically inactive adults are prevalent worldwide. This study compared the effects of short-term high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on heart rate variability (HRV) in physically inactive adults as a preliminary study. Thirteen physically inactive male adults (27.5 ± 3.80 years) were randomly assigned to HIIT (N = 7) or MICT (N = 6). The HIIT program consisted of 20 min of interval training with cycling to rest ratio of 10/50 s at ≥90% HRpeak, while the MICT program consisted of 40 min of continuous cycling at 60–75% HRpeak. Both groups completed eight sessions of training within two weeks. Time and frequency domains of HRV were measured for 20 min with Actiwave-Cardio monitor (CamNtech, UK). The number of R-R interval and inter-beat interval (IBI) were significantly improved (p < 0.05) in both HIIT and MICT programs following eight sessions of training. A significant interaction effect for group by time was found in the lnLF/HF ratio (p < 0.05) where it was only improved in the HIIT group from pre- to post-test. The HIIT program is superior to MICT in improving HRV in physically inactive adults. The HIIT program can be applied as a time-efficient program for improving cardiac-autoregulation.

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COMPARAISON OF HEART RATE RECOVERY AND PARASYMPATHETIC REACTIVATION PARAMETERS AFTER A MAXIMAL EXERCICE, A MODERATE-INTENSITY CONTINUOUS EXERCISE AND HIGH-INTENSITY INTERVAL EXERCISE IN YOUNG AND OLD HEALTY SUBJECTS AND STABLE CORONARY PATIENTS

Canadian Journal of Cardiology ◽

10.1016/j.cjca.2014.07.560 ◽

2014 ◽

Vol 30 (10) ◽

pp. S313

Author(s):

É. Gagné ◽

J. Larouche ◽

O. Dupuy ◽

A. Nigam ◽

M. Juneau ◽

...

Keyword(s):

Heart Rate ◽

High Intensity ◽

Heart Rate Recovery ◽

Moderate Intensity ◽

Interval Exercise ◽

Continuous Exercise ◽

Parasympathetic Reactivation ◽

Coronary Patients ◽

High Intensity Interval

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Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

Journal of Visualized Experiments ◽

10.3791/60252 ◽

2019 ◽

Author(s):

Haifeng Zhang ◽

Jinlei Nie ◽

Zhaowei Kong ◽

Xiangui Zhu ◽

Yang Liu ◽

...

Keyword(s):

High Intensity ◽

Cardiac Troponin ◽

Troponin T ◽

Early Stage ◽

Moderate Intensity ◽

Cardiac Troponin T ◽

Interval Exercise ◽

Continuous Exercise ◽

High Intensity Interval

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Acute Effects of High-Intensity Interval and Moderate-Intensity Continuous Exercise on GLP-1, Appetite and Energy Intake in Obese Men: A Crossover Trial

Nutrients ◽

10.3390/nu10070889 ◽

2018 ◽

Vol 10 (7) ◽

pp. 889 ◽

Cited By ~ 8

Author(s):

Victor Matos ◽

Daniel Souza ◽

Victor Santos ◽

Ítalo Medeiros ◽

Rodrigo Browne ◽

...

Keyword(s):

Heart Rate ◽

Energy Intake ◽

High Intensity ◽

Crossover Trial ◽

Moderate Intensity ◽

Maximal Heart Rate ◽

Post Exercise ◽

Continuous Exercise ◽

Glucagon Like Peptide 1 ◽

High Intensity Interval

This study investigated the effect of high-intensity interval (HIIE) and moderate-intensity continuous exercise (MICE) on glucagon-like peptide 1 (GLP-1), appetite and energy intake (EI) in obese men. In a randomized crossover trial, 12 participants (28.4 ± 2.6 years, 35.5 ± 4.5 kg/m2, 39.8 ± 2.2% body fat) performed: (I) Control (CON, no exercise); (II) MICE (20 min, 70% of maximal heart rate) and (III) HIIE (10 × 1 min at 90% of maximal heart rate with 1 min recovery). GLP-1 and appetite were assessed at: (I) PRE: pre-exercise; (II) POST: immediately post-exercise; (III) POST-1 h: 1 h post-exercise. EI was assessed after an ad libitum meal offered 1 h post-exercise and over 24 h. There was a significant time × condition interaction for GLP-1 (p = 0.035). Higher GLP-1 levels in MICE vs. CON (p = 0.024) and a trend for HIIE vs. CON (p = 0.069) POST-1h was found. Hunger was reduced immediately post-HIIE compared to CON (p < 0.01), but was not sustained POST-1 h (p > 0.05). EI did not differ between the sessions 1 h post-exercise or over 24H (p > 0.05). In summary, although MICE increased GLP-1 levels POST-1h and HIIE induced a transient reduction in hunger, both exercise protocols did not impact EI in obese men.

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Heart rate recovery and heart rate variability are unchanged in patients with coronary artery disease following 12 weeks of high-intensity interval and moderate-intensity endurance exercise training

Applied Physiology Nutrition and Metabolism ◽

10.1139/apnm-2012-0354 ◽

2013 ◽

Vol 38 (6) ◽

pp. 644-650 ◽

Cited By ~ 27

Author(s):

Katharine D. Currie ◽

Lee M. Rosen ◽

Philip J. Millar ◽

Robert S. McKelvie ◽

Maureen J. MacDonald

Keyword(s):

Coronary Artery Disease ◽

Heart Rate ◽

Heart Rate Variability ◽

Coronary Artery ◽

Endurance Exercise ◽

High Intensity ◽

Heart Rate Recovery ◽

Moderate Intensity ◽

Artery Disease ◽

High Intensity Interval

Decreased heart rate variability and attenuated heart rate recovery following exercise are associated with an increased risk of mortality in cardiac patients. This study investigated the effects of 12 weeks of moderate-intensity endurance exercise (END) and a novel low-volume high-intensity interval exercise protocol (HIT) on measures of heart rate recovery and heart rate variability in patients with coronary artery disease (CAD). Fourteen males with CAD participated in 12 weeks of END or HIT training, each consisting of 2 supervised exercise sessions per week. END consisted of 30–50 min of continuous cycling at 60% peak power output (PPO). HIT involved ten 1-min intervals at 88% PPO separated by 1-min intervals at 10% PPO. Heart rate recovery at 1 min and 2 min was measured before and after training (pre- and post-training, respectively) using a submaximal exercise bout. Resting time and spectral and nonlinear domain measures of heart rate variability were calculated. Following 12 weeks of END and HIT, there was no change in heart rate recovery at 1 min (END, 40 ± 12 beats·min−1 vs. 37 ± 19 beats·min−1; HIT, 31 ± 8 beats·min−1 vs. 35 ± 8 beats·min−1; p ≥ 0.05 for pre- vs. post-training) or 2 min (END, 44 ± 18 beats·min−1 vs. 43 ± 19 beats·min−1; HIT, 42 ± 10 beats·min−1 vs. 50 ± 6 beats·min−1; p ≥ 0.05 for pre- vs. post-training). All heart rate variability indices were unchanged following END and HIT training. In conclusion, neither END nor HIT exercise programs elicited training-induced improvements in cardiac autonomic function in patients with CAD. The absence of improvements with training may be attributed to the optimal medical management and normative pretraining state of our sample.

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