https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 The Effectiveness of Paced Breathing versus Game-Biofeedback on Heart Rate Variability: An Observational Study https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39547 Wed 27 Jul 2022 14:28:27 AEST ]]> Diagnostic accuracy of random ECG in primary care for early, asymptomatic cardiac autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34605 Wed 24 Nov 2021 15:51:00 AEDT ]]> The Effectiveness of Point-of-Care Testing with Intervention in Psychopathology: A Pilot Study https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39779 Wed 22 Jun 2022 12:26:06 AEST ]]> Cardiac autonomic dysfunction in type 2 diabetes - effect of hyperglycemia and disease duration https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19225 Wed 11 Apr 2018 16:44:01 AEST ]]> Complex nonlinear autonomic nervous system modulation link cardiac autonomic neuropathy and peripheral vascular disease https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25349 Wed 11 Apr 2018 16:07:11 AEST ]]> Atypical cardiac autonomic neuropathy identified with entropy measures https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25350 Wed 11 Apr 2018 15:51:03 AEST ]]> How to calculate Renyi entropy from heart rate variability, and why it matters for detecting cardiac autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:20393 Wed 11 Apr 2018 14:41:48 AEST ]]> Heart rate recovery in decision support for high performance athlete training schedules https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18910 Wed 11 Apr 2018 13:22:49 AEST ]]> Prediction of game performance in Australian football using heart rate variability measures https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25347 Wed 11 Apr 2018 13:17:58 AEST ]]> The role of serious games in robot exoskeleton-assisted rehabilitation of stroke patients https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26420 Wed 11 Apr 2018 11:18:48 AEST ]]> A Comparison of nonlinear measures for the detection of cardiac autonomic neuropathy from heart rate variability https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23238 Wed 11 Apr 2018 09:40:41 AEST ]]> Diffusion entropy vs. multiscale and renyi entropy to detect progression of autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37692 Tue 16 Mar 2021 17:30:53 AEDT ]]> Investigation of linear and nonlinear properties of a heartbeat time series using multiscale Rényi entropy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45161 RR intervals. When quantified using an entropy measure, these time series show statistically significant differences between disease classes of Normal, Early CAN and Definite CAN. In addition, pathophysiological characteristics of heartbeat dynamics provide information not only on the change in the system using the first difference but also the magnitude and direction of the change measured by the second difference (acceleration) with respect to sequence length. These additional measures provide disease categories to be discriminated and could prove useful for non-invasive diagnosis and understanding changes in heart rhythm associated with CAN.]]> Thu 27 Oct 2022 14:52:12 AEDT ]]> Increased markers of cardiac vagal activity in leucine-rich repeat kinase 2-associated Parkinson's disease https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42122 LRRK2 mutation. Novel HRV features have not been investigated in these individuals. We aimed to assess cardiac autonomic modulation through standard and novel approaches to HRV analysis in individuals who carry the LRRK2 G2019S mutation. Methods: Short-term electrocardiograms were recorded in 14 LRRK2-associated PD patients, 25 LRRK2-non-manifesting carriers, 32 related non-carriers, 20 idiopathic PD patients, and 27 healthy controls. HRV measures were compared using regression modeling, controlling for age, sex, mean heart rate, and disease duration. Discriminant analysis highlighted the feature combination that best distinguished LRRK2-associated PD from controls. Results: Beat-to-beat and global HRV measures were significantly increased in LRRK2-associated PD patients compared with controls (e.g., deceleration capacity of heart rate: p = 0.006) and idiopathic PD patients (e.g., 8th standardized moment of the interbeat interval distribution: p = 0.0003), respectively. LRRK2-associated PD patients also showed significantly increased irregularity of heart rate dynamics, as quantified by Rényi entropy, when compared with controls (p = 0.002) and idiopathic PD patients (p = 0.0004). Ordinal pattern statistics permitted the identification of LRRK2-associated PD individuals with 93% sensitivity and 93% specificity. Consistent results were found in a subgroup of LRRK2-non-manifesting carriers when compared with controls. Conclusions: Increased beat-to-beat HRV in LRRK2 G2019S mutation carriers compared with controls and idiopathic PD patients may indicate augmented cardiac autonomic cholinergic activity, suggesting early impairment of central vagal feedback loops in LRRK2-associated PD.]]> Thu 25 Aug 2022 11:53:00 AEST ]]> Visualisation in biomedicine as a means of data evaluation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:31576 Sat 24 Mar 2018 08:44:59 AEDT ]]> Visualization methods for assisting detection of cardiovascular neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18249 Sat 24 Mar 2018 08:04:49 AEDT ]]> Computational intelligence methods for the identification of early cardiac autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18721 Sat 24 Mar 2018 08:02:50 AEDT ]]> Renyi entropy in identification of cardiac autonomic neuropathy in diabetes. https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:16285 Sat 24 Mar 2018 07:59:26 AEDT ]]> Evaluation of normalised Renyi entropy for classification of cardiac autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17806 Sat 24 Mar 2018 07:57:35 AEDT ]]> Using meta-regression data mining to improve predictions of performance based on heart rate dynamics for Australian football https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:18002 Sat 24 Mar 2018 07:56:16 AEDT ]]> Multiscale analysis of tortuosity in retinal images using wavelets and fractal methods https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26253 Sat 24 Mar 2018 07:40:18 AEDT ]]> Using renyi entropy to detect early cardiac autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28654 Sat 24 Mar 2018 07:37:13 AEDT ]]> Socioeconomic status, age and heart rate variability in a Bangladeshi community https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29249 2 vs. 96.8 (97.6) ms2, p=0.02) and the correlation dimension (0.78 (0.82) vs. 0.51 (1.20), p<0.0002) were significantly lower in the low SES group, whilst the high frequency peak was significantly higher (0.1500 (0.0004) Hz vs. 0.1503 (0.0066) Hz, p<0.0001). Our results show that although the high SES group had a more sedentary behavior, the low SES group had a higher risk of cardiac arrhythmia even though they were generally younger with normal blood pressure and waist circumference.]]> Sat 24 Mar 2018 07:36:46 AEDT ]]> Multiscale renyi entropy and cardiac autonomic neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26213 Sat 24 Mar 2018 07:36:32 AEDT ]]> Monofractal and multifractal analysis for interpretation of function-structure relationships in finite size biological material https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25781 Sat 24 Mar 2018 07:30:50 AEDT ]]> Fractal analysis in clinical screening and investigation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25780 Sat 24 Mar 2018 07:30:49 AEDT ]]> Image processing in the analysis of neuronal dendritic branching patterns: does structure follow function across different species? https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25782 Sat 24 Mar 2018 07:30:44 AEDT ]]> Complexity of heart rate variability in type 2 diabetes - effect of hyperglycemia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23795 Sat 24 Mar 2018 07:13:18 AEDT ]]> Heart rate variability biomarkers of leucine-rich repeat kinase 2-associated Parkinson's disease https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40094 Mon 20 Nov 2023 16:00:56 AEDT ]]> Depression and cardiac dysautonomia in eating disorders https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36022 Fri 24 Jan 2020 16:36:15 AEDT ]]> Heart rate complexity associated with diabetic cardiac neuropathy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32531 Fri 15 Jun 2018 10:45:14 AEST ]]>