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Showing 1 to 14 of 14 for “"LF/HF ratio"”.
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Effects of Proactive and Retroactive Augmented Information on Physiological Responses in Learning a Novel Motor Skill
… increase cognitive effort results in increased LF/HF ratio). Participants were required to learn 18 different key-pressing sequences. As expected, the proactive condition demonstrated superior RS during acquisition, with the retroactive condition demonstrating superior RS during retention. …
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Sintomi non motori e disautonomia cardiovascolare in pazienti sardi affetti da malattia di parkinson con e senza mutazioni del gene LRRK2
… of cardiovascular symptoms. HRV revealed reduced LF/HF ratio both in PD patients with or without LRKK2 mutations, with enhancement of HF in LRRK2 patients. Cardiovascular symptoms detected at NMSS correlated with LF/HF ratio. Echocardiography show a Δ Strain rate reduced in parkinsonian patients. …
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Differences in Lower Urinary Tract Symptoms between Sympathetic Hyperactive and Hypoactive men
… according to the low frequency/high frequency (LF/HF) ratio and made clinical comparisons between the groups. Materials and methods : A total of 43 patients with symptomatic LUTS [International Prostate Symptom Score (IPSS) over 8] and 49 healthy volunteers were enrolled. No subjects had …
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Sveikų žmonių širdies ritmo variabilumo kitimas virtualios realybės seanso įtakoje /
… HRV parameters were analyzed in total: RMSSD, LF/HF ratio, normalized LF, normalized HF, pNN50, heart rate, rrHRV, IQR and R-R intervals. Statistical analysis revealed no statistically significant changes in these parameters between the two measurements in any of the three analyzed groups: the …
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The Correlation Between the Treatment Efficacy and the Sympathetic Activity in Men With Lower Urinary Tract Symptoms
… They had a past 3-month history of taking alfuzosin XL, and their heart rate variability (HRV) was measured before and after the treatment. In addition, we also re¬cruited 39 healthy volunteers who visited a health promotion center for a regular medical check-up. They were aged between 40 …
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Metabolic Syndrome, Inflammation, Heart Rate Variability, and Fitness in Obese African American Youth
… fluctuation (SDNN), parasympathetic function (HF), and sympathetic/ parasympathetic balance (LF/HF ratio) were calculated. Measures were repeated at 6 months. Data were analyzed using descriptive statistics, Pearson’s correlation coefficient, non-parametric t-tests and multiple linear …
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Heart Rate Variability analysis in patients undergoing local anesthesia
… specifically developed for this study. The respiration signal was also estimaited from the ECG signal using the ECG Derived Respiration (EDR) technique. In order to take better account of slow respiration rates and/or irregular respiratory patterns in the HRV analysis, a new method for the …
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Donepezil’s Effect on Cardiac Function in Patients with Alzheimer’s Disease through an In Vivo, Non Invasive Measure of Cardiac Autonomic Function
… Frequency Power, High Frequency Power, RMSSD, LF/HF Ratio) and time-domain (six minutes) measures using ECG technology. Data were analyzed using 2x2x2 (AD group n= 12; HC group n= 12) and 2x2x3 (AD group n= 8; HC group n= 8) repeated measures ANCOVA’s while controlling for age, gender, body …
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The Cardiovascular Demands of Division I Sideline Cheerleaders During Training and Football Games
… position. There was a significantly higher LF/HF ratio prior to game than prior to practice (p< 0.01). Average HR was significantly higher during game than practice (p< 0.01). Average activity level was significantly higher during game than in practice (p< 0.01), while maximal activity level …
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Physical Activity, Heart Rate Variability, Sleep Parameters, and Glycemic Variability in T1D
… device (Zmachine) was used to measure sleep duration, and the Empatica E4 wearable device was used to derive HRV indices. Two complementary analytic approaches were applied. First, linear mixed-effects models with repeated daily measures were used to evaluate interactions between HRV indices …
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Central and peripheral autonomic influences : analysis of cardio-pulmonary dynamics using novel wavelet statistical methods
… bands. The second tool is a wavelet source separation (WayS) method used to separate the respiratory component from the cardiac component, thereby allowing for analysis of the dynamics of the cardiac signal without the confounding influence of the respiratory signal that occurs when the body is …
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The effects of magnesium treatment on short-term changes in heart rate variability, ventricular function and lipid profile in streptozotocin-induced diabetic rats
… and dyslipidaemia, which are dependent on the duration and severity of the diabetes. Most complications are identified at a late, irreversible stage following long-standing diabetes; therefore, early detection and treatment of cardiovascular complications may reverse impairments and improve …
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The Reproducibility of Short verses Long-Duration Heart Rate Variability Methods and Relations to Aerobic Fitness in Normal Adults
… The latter include: Low Frequency Power (LF), High Frequency Power (HF), and LF/HF ratio. HRV has been measured in a variety of ways, the most common being a continuous 24-hour collection of R-R data. In recent years, several investigators have sought to assess HRV by utilizing brief …
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Automatizovaný výpočet stresového koeficientu simulační výuky
Tato diplomová práce se zabývá návrhem a implementací metodiky pro automatizované hodnocení stresové zátěže studentů v kontextu simulační výuky. Navržený systém kombinuje fyziologická měření variability srdečního rytmu (HRV) získaná pomocí senzoru Polar H10 s psychometrickými daty z ověřených …