Title :
Dynamics of heart rate changes following moderate and high volume exercise training
Author :
Karmakar, Chandan ; Khandoker, Ahsan ; Tulppo, M. ; Makikallio, T. ; Kiviniemi, A. ; Hautala, A. ; Huikuri, H. ; Palaniswami, Marimuthu ; Jelinek, Herbert F.
Author_Institution :
Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
In this study, we use the complex correlation method derived from the Poincaré map along with standard SD1 and SD2 parameters to obtain a better understanding of the relationship between optimal autonomic control of the heart rate and the correlation to fitness and exercise. Fifty participants were randomized into a moderatevolume (n=19), high-volume (n=15) and control group (n=16). The duration of the signal is divided into Day (9am-6pm), Night (12am-6am) and 24h groups. Standard Poincaré based parameters of heart rate variability SD1, SD2, SD1/SD2 and complex correlation measure (CCM) was calculated for each subject and duration. CCM indicated that there was a greater change associated with moderate volume exercise (median ± iqr 19.96 ± 29.62 vs 14.76 ± 23.14) compared to high volume exercise during the Day with both being significantly different to control (p<;0.05). We conclude that autonomic balance and heart rate variability affects day time function more so than night time function, as metabolic and physiological processes slow down during the night.
Keywords :
Poincare mapping; biomechanics; electrocardiography; medical computing; physiology; ECG; Poincare map; autonomic control; complex correlation measurement; complex correlation method; electrocardiography; heart rate dynamics; high volume exercise training; metabolic processes; moderate volume exercise training; physiological processes; standard SD1 parameters; standard SD2 parameters; time 24 hr; Correlation; Heart rate variability; Physiology; Standards; Training;
Conference_Titel :
Computing in Cardiology (CinC), 2012
Conference_Location :
Krakow
Print_ISBN :
978-1-4673-2076-4