Abstract P497: Association Between Accelerometer-estimated Physical Activity Intensity and Heart Rate Variability: Mediation by Glycemic Measures and Triglycerides (from The Cardia Study)

Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Zachary C Pope ◽  
Kelley P Gabriel ◽  
Kara M Whitaker ◽  
Lin Y Chen ◽  
Pamela J Schreiner ◽  
...  
Keyword(s):  
Physical Activity ◽  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Fasting Glucose ◽  
Oral Glucose ◽  
Physical Activity Intensity ◽  
Cross Sectional ◽  
Rr Intervals ◽  
Activity Intensity

Introduction: We estimated cross-sectional associations between accelerometer-estimated light (LPA), moderate (MPA), and vigorous (VPA) intensity physical activity (PA) and heart rate variability (HRV), and tested mediation of these associations by glycemic control indices, blood lipids, and blood pressure. Hypothesis: PA is positively and independently associated with higher (improved) HRV. Glycemic measures are partial physiological mediators of these associations. Methods: Data were from 1,668 participants (X -age = 46 ± 4 yrs, 58% F, 40% black) in Year 20 (2005-06) of the Coronary Artery Risk Development in Young Adults (CARDIA) Fitness Study. The ActiGraph 7164 estimated participants’ mean min/d of LPA, MPA, and VPA over 7d. Three sequential 10-sec 12-lead ECG strips provided standard deviation of all normal RR intervals (SDNN) and root mean square of all successive RR intervals (rMSSD) HRV. Physiological mediators included fasting glucose and insulin as well as 2-hr oral glucose tolerance (OGTT), fasting triglycerides (TG), HDL-C, and systolic blood pressure (BP). Multiple linear regression, controlling for demographic and lifestyle confounders, assessed independent associations of PA with SDNN and rMSSD HRV per 1-SD. Mediation analyses computed the proportion of the PA-HRV associations attributable to physiological mediators. Results: Participants averaged 360.2 ± 83.8, 33.0 ± 22.0, and 2.7 ± 6.2 min/d of LPA, MPA, and VPA, respectively, with mean values for SDNN (32.6 ± 22.4 ms) and rMSSD (34.0 ± 24.8 ms) similar. VPA was associated with both HRV metrics (SDNN: std = .06 [.03, .10]; rMSSD: std = .08, [.05, .12]) and LPA with rMSSD only (std = .05, [.01, .08]). Fasting glucose and insulin mediated between 11.6%-20.7% of the association of VPA and LPA with HRV (Table). Triglycerides also mediated these associations (range: 9.6%-13.4%; Table). Conclusions: Accelerometer-estimated VPA and LPA were positively associated with higher HRV. These associations may be due most to glycemia and insulinemia.

scholarly journals Cardiovascular Responses, Physical Activity Intensity, and Enjoyment Level of Nintendo Switch™ Exergaming, Comparing Different Tempos and Playing Modes: A Pilot Study

2021 ◽  
Vol 3 (2) ◽  
pp. 44
Author(s):  
Bayu Aji Mayogya Putra ◽  
Reni Hendrarati Masduchi ◽  
Martha Kurnia Kusumawardani
Keyword(s):  
Physical Activity ◽  
Blood Pressure ◽  
Heart Rate ◽  
Perceived Exertion ◽  
Cardiovascular Responses ◽  
Rating Of Perceived Exertion ◽  
Physical Activity Intensity ◽  
Activity Intensity ◽  
Before And After ◽  
Rate Sensor

Background: Physical activity (PA) has been associated with multiple health benefits. However, the global population does not meet the PA recommendations. Virtual reality exergaming (VR EXG) can become an option to increase PA because it is fun, relatively easy to access and affordable through popular commercial devices.Aim: To investigate the immediate cardiovascular responses(blood pressure, heart rate), quantification of PA intensity(percentage of maximum heart rate (%HRmax), Borg’s rating of perceived exertion (RPE), and the level of enjoyment using visual analog scale (VAS) while playing VR EXG.Material and Methods: Fifteen healthy men (aged 31.87±3.14 years old, body mass index 23.77±2.47 kg/m2) undergone three“Fitness Boxing” Nintendo Switch™ playing modes in the same order: (1) single player-normal tempo, (2) single player-fast tempo and (3) versus. During playing, participant’s HR was monitored using Polar H10 heart rate sensor. Blood pressure was measured before and after playing. Borg’s RPE and VAS were collected after playing.Results: Our results showed significant heart rate and systolic blood pressure increase (p = 0.001) in all three playing conditions, whereas diastolic blood pressure was relatively constant (p > 0.05). The Borg’s RPE were in 12-13 range (moderate) and %HRmax range between 72- 81% (vigorous). The enjoyment level was found greatest in versus mode compared to other playing modes.Conclusion: VR EXG Nintendo Switch™ “Fitness Boxing” can elicit immediate cardiovascular responses and provides an enjoyable moderate to vigorous PA intensity in healthy male adults, and can be used to meet the weekly PA recommendations. 

scholarly journals Heart rate variability and blood pressure among Japanese men and women: a community-based cross-sectional study

2014 ◽  
Vol 37 (8) ◽  
pp. 779-784 ◽  
Author(s):  
Hiromi Mori ◽  
Isao Saito ◽  
Eri Eguchi ◽  
Koutatsu Maruyama ◽  
Tadahiro Kato ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Community Based ◽  
Cross Sectional ◽  
Japanese Men ◽  
Men And Women

scholarly journals Relationship between Physical Activity and Blood Lipid Profile in Residents of Yazd City (YaHS Study)

2020 ◽  
Author(s):  
Masoud Mirzaei ◽  
Farnaz Nekahi
Keyword(s):  
Physical Activity ◽  
Blood Lipid ◽  
Activity Level ◽  
Health Study ◽  
General Level ◽  
Statistical Relationship ◽  
Physical Activity Intensity ◽  
Blood Lipid Profile ◽  
Cross Sectional ◽  
Activity Intensity

Introduction: Inadequate physical activity is one of the causes of fat disorders and regular physical activity is one of the important factors in correcting fat disorders. The aim of this study was to determine the relationship between physical activity levels and blood lipids as a risk factor for cardiovascular disease. Methods: This analytical cross sectional study was conducted using the information of the registration phase of the Yazd People's Health Study on 9962 residents of Yazd in the age group of 20 to 70 years between 2014 and 2015. Study data were obtained using standard questionnaires and participants' blood samples. SPSS software, version 21, t-test, linear regression, and OR comparison of fat disorders were used in the physical activity intensity classes. Results: In the study sample, 49.4% are men. No statistical significant physical activity level was found in the study of the ratio of chance of fat disorder. Moreover, no significant relationship was observed in the study of the linear relationship between the general level of physical activity and fat profile components (p> 0.05). It should be noted that a significant statistical relationship was observed between the level of TC or blood total cholesterol and blood triglycerides with sex, body mass index and family history and some age groups. (p <0.05). Conclusion: In the analysis of the data of this study, no significant statistical relationship was found between blood lipid levels and physical activity.

scholarly journals Application and Validation of Activity Monitors’ Epoch Lengths and Placement Sites for Physical Activity Assessment in Exergaming

2018 ◽  
Vol 7 (9) ◽  
pp. 268 ◽  
Author(s):  
Jungyun Hwang ◽  
Austin Fernandez ◽  
Amy Lu
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Intraclass Correlation ◽  
Activity Levels ◽  
Physical Activity Intensity ◽  
Activity Monitors ◽  
Epoch Length ◽  
Activity Intensity ◽  
Physical Activity Levels ◽  
Rate Sensor

We assessed the agreement of two ActiGraph activity monitors (wGT3X vs. GT9X) placed at the hip and the wrist and determined an appropriate epoch length for physical activity levels in an exergaming setting. Forty-seven young adults played a 30-min exergame while wearing wGT3X and GT9X on both hip and wrist placement sites and a heart rate sensor below the chest. Intraclass correlation coefficient indicated that intermonitor agreement in steps and activity counts was excellent on the hip and good on the wrist. Bland-Altman plots indicated good intermonitor agreement in the steps and activity counts on both placement sites but a significant intermonitor difference was detected in steps on the wrist. Time spent in sedentary and physical activity intensity levels varied across six epoch lengths and depended on the placement sites, whereas time spent from a 1-s epoch of the hip-worn monitors most accurately matched the relative exercise intensity by heart rate. Hip placement site was associated with better step-counting accuracy for both activity monitors and more valid estimation of physical activity levels. A 1-s epoch was the most appropriate epoch length to detect short bursts of intense physical activity and may be the best choice for data processing and analysis in exergaming studies examining intermittent physical activities.

scholarly journals How Is the Self-Perceived Work Ability Affected by the Duration of Unemployment, Heart Rate Variability and the Amount of Physical Activity in Older Long-Term Unemployed Persons?

2020 ◽  
Vol 17 (6) ◽  
pp. 2039
Author(s):  
Anke Bumann ◽  
Daniel Niederer ◽  
Constanze Santarossa ◽  
Winfried Banzer ◽  
Lutz Vogt
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Work Ability ◽  
Vigorous Physical Activity ◽  
Total Power ◽  
Work Ability Index ◽  
Cross Sectional ◽  
Perceived Work Ability ◽  
Duration Of Unemployment

Background: This study investigated whether work ability is associated with the duration of unemployment, heart rate variability (HRV), and the level of physical activity. Methods: Thirty-four unemployed persons (mean 55.7 ± standard deviation 33.3 years, 22 female, 12 male, unemployed: range 1–22.5 years) participated in the cross-sectional study. The Work Ability Index (WAI) and International Physical Activity Questionnaire (IPAQ) were applied. Short-term (five minutes) resting HRV (Low Frequency (LF), High Frequency (HF), Total Power (TP)) was collected. Results: Work ability was positively associated with the HRV: LF (r = 0.383; p = 0.025), HF (r = 0.412; p = 0.015) and TP (r = 0.361; p = 0.036). The WAI showed a positive linear correlation with the amount of total physical activity (r = 0.461; p = 0.006) as well as with the amount of moderate to vigorous physical activity (r = 0.413; p = 0.015). No association between the WAI and the duration of unemployment occurred. Conclusions: the relation between self-perceived work ability, health-associated parameters, the HRV and the level of physical activity points out the relevance of health-care exercise and the need of stress-reducing interventions to improve perceived work ability. Our results point out the need for the further and more holistic development of healthcare for the unemployed.

scholarly journals Niveles de actividad física en población adolescente: estudio de caso (Physical activity levels in adolescents: a case study)

Retos ◽  
2015 ◽  
pp. 43-47
Author(s):  
Guillermo Oviedo ◽  
Josep Sánchez ◽  
Rubén Castro ◽  
Mar Calvo ◽  
Juan Carlos Sevilla ◽  
...  
Keyword(s):  
Physical Activity ◽  
Blood Pressure ◽  
Childhood And Adolescence ◽  
Activity Levels ◽  
Physical Activity Intensity ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Activity Intensity ◽  
Automatic Blood Pressure ◽  
Las Mujeres

La actividad física (AF) es fundamental en la infancia y en la adolescencia a fin de promover un desarrollo saludable. La OMS (2010), recomienda que los niños de 5-17 años deberían acumular un mínimo de 60 minutos diarios de AF moderada (3 - 6 METs) o vigorosa (> 6 METs). El objetivo general del estudio se centra en evaluar y conocer mediante la utilización de acelerometría triaxial si el tiempo e intensidad de la AF realizada diariamente por los adolescentes de un centro escolar cumplen con las recomendaciones de la OMS. Los participantes fueron 60 adolescentes pertenecientes a la escuela Empordá (Roses, España). Previamente se obtuvo el consentimiento informado de los padres y/o tutores. Los niveles de AF diarios fueron obtenidos mediante acelerometría, el índice de Masa corporal (IMC) se calculó utilizando el peso y la altura, la frecuencia cardíaca (FC) y tensión arterial (TA) se obtuvieron mediante un tensiómetro digital. Se realizó un análisis descriptivo de todas las variables y el test T de Student (p < .05) se utilice para analizar las diferencias entre varones y mujeres. Los pricipales resultados muestran que los varones realizan AF durante más tiempo y a mayores intensidades que las mujeres. Existe un bajo porcentaje de alumnos que cumplen con las recomendaciones de la OMS. Como conclusiones, creemos muy importante la búsqueda de nuevas estrategias y métodos a fin de involucrar un mayor número de adolescentes en la práctica de AF, como también vemos de vital inportancia las sesiones de AF en la escuela.Palabra clave: actividad física, intensidad, gasto calórico, adolescentes, acelerómetro, acelerometría.Abstract: Physical Activity (PA) is very important during childhood and adolescence in order to promote healthy development and prevent obesity. The WHO recommends 60 minutes daily of moderate-vigorous activity (e» 3 METs/day). The main objective of the study is to assess the levels of PA intensity performed daily by adolescents from a school using the triaxial accelerometry system and to know if they achieve the WHO recommendations. The sample size was 60 Spanish adolescents (14.52 ± .854 year-old) belongs to the Empordá school (Empúries, Spain). Previous informed consent was obtained from their parents and/or tutors. PA levels were obtained through accelerometry, Body Mass Index (BMI) was calculated though weight and height, heart rate (HR) and blood pressure (BP) were measured using a digital automatic blood pressure monitor. Descriptive for all data was calculated, and T–test (p < .05) was used to analyze the differences between boys and girls. The main result show that males performed PA during longer time and at higher intensity than women. There is a low percentage of students who achieve the WHO recommendations. In conclusion, we believe very important to seek new strategies and methods to involve more adolescents in the practice of PA, and we believe that PA sessions at school are very important. Key words: physical activity, intensity, energy expenditure, adolescents, accelerometry, accelerometer.

scholarly journals Time Domain Measures Of Heart Rate Variability In Heavy Workers

1970 ◽  
Vol 6 (2) ◽  
pp. 77-83 ◽  
Author(s):  
Sangita Mithun ◽  
Noorzahan Begum ◽  
Sultana Ferdousi ◽  
Shelina Begum ◽  
Taskina Ali
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Coronary Heart Disease ◽  
Heart Rate Variability ◽  
Heart Disease ◽  
Time Domain ◽  
Autonomic Nerve ◽  
Cross Sectional ◽  
Socioeconomic Condition ◽  
Apparently Healthy

Background: Physical inactivity and low resting heart rate variability (HRV) are associated with increased incidence of coronary heart disease. Heavy physical activity is associated with higher heart rate variability and reduces the risk of coronary heart disease Objective: To assess some time domain measures of HRV in order to compare Cardiac Autonomic Function between sedentary and heavy workers. Methods: This cross sectional study was carried out in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University between 1st July 2008 to 30th June 2009 on 30 apparently healthy heavy workers aged 28-50 years from low socioeconomic condition (study group). For comparison 30 age, sex, BMI and socioeconomic status matched apparently healthy sedentary subjects (group A) were also studied. The study subjects were selected among rickshaw-pullers living in the slum areas nearby BSMMU, Dhaka and the controls were from fourth class employee of BSMMU, Dhaka. Heart Rate Variability were assessed by a Polygraph. Several time domain measures of HRV such as mean R-R interval, mean HR, SDNN, RMSSD were analyzed. For statistical analysis, Independent-Samples t-test, and Pearson’s correlation coefficient tests were done as applicable. Results: Resting mean heart rate (P<0.01), SDNN (P<0.01) and RMSSD (P<0.001) were significantly lower but mean R-R interval (P<0.001) was significantly higher in heavy workers than those of sedentary control. The mean R-R interval (P<0.05) showed significant positive correlation in heavy workers but significant negative correlation in sedentary workers with BMI. Conclusion: Cardiac autonomic nerve function status may be higher with parasympathetic dominance by increased physical activity. DOI: http://dx.doi.org/10.3329/jbsp.v6i2.9755 JBSP 2011 6(2): 77-83

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