A portable heart rate distribution recorder for studying daily physical activity

1977 ◽  
Vol 37 (1) ◽  
pp. 17-25 ◽  
Author(s):  
W. H. M. Saris ◽  
P. Snel ◽  
R. A. Binkhorst
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Daily Physical Activity ◽  
Rate Distribution

Maximal Oxygen Uptake and Daily Physical Activity in 7- to 12-Year-Old Boys

1993 ◽  
Vol 5 (4) ◽  
pp. 357-366 ◽  
Author(s):  
Hazzaa M. Al-Hazzaa ◽  
Mohammed A. Sulaiman
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Open Circuit ◽  
Daily Physical Activity ◽  
Activity Level ◽  
Activity Levels ◽  
School Time ◽  
The Relationship

The present study examined the relationship between maximal oxygen uptake (V̇O2max) and daily physical activity in a group of 7- to 12-year-old boys. V̇O2max was assessed through the incremental treadmill test using an open circuit system. Physical activity level was obtained from heart rate telemetry outside of school time for 8 hrs during weekdays and during 40 min of physical education classes. The findings indicated that the absolute value of V̇O2max increased with age, while relative to body weight it remained almost the same across age, with a mean of 48.4 ml · kg−1 · min−1. Moreover, heart rate telemetry showed that the boys spent a limited amount of time on activities that raise the heart rate to a level above 160 bpm (an average of 1.9%). In addition, V̇O2max was found to be significantly related to the percentage of time spent at activity levels at or above a heart rate of 140 bpm, but not with activity levels at or above a heart rate of 160 bpm.

Sinoaortic denervation abolishes pressure resetting for daily physical activity in rabbits

2002 ◽  
Vol 282 (3) ◽  
pp. R649-R657 ◽  
Author(s):  
Yasuhiro Nishida ◽  
Qing Hui Chen ◽  
Ming-Sheng Zhou ◽  
Jouji Horiuchi
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Feedback Control ◽  
Negative Feedback ◽  
Peripheral Resistance ◽  
Pressure Level ◽  
Daily Physical Activity ◽  
Shift Map ◽  
Negative Feedback Control ◽  
Map Data

It has been speculated that if baroafferent signals are only related to the negative feedback control of arterial pressure (AP), then physical activity would increase the range of AP fluctuation in baroafferent-denervated animals. Mean AP (MAP), heart rate (HR), and cardiac output (CO) were measured for 24 h in free-moving conscious rabbits. On the basis of hydrostatic pressure and electromyogram, MAP data taken during periods of physical activity and rest were selected from the overall 24-h MAP data and then converted into histograms. During physical activity, the mode of MAP histogram increased in intact rabbits and was unchanged in sinoaortic-denervated (SAD) rabbits. Movement increased the mode of total peripheral resistance (TPR) but did not significantly change CO in intact rabbits. Conversely in SAD rabbits, movement slightly decreased TPR and slightly increased CO. These findings indicate that arterial baroafferent signals are required to shift MAP to a higher pressure level by an increase in TPR but not in CO during a moving phase. These results suggest that baroafferent signals may not only minimize the fluctuating range of MAP through negative feedback control but also be involved in actively resetting MAP toward a higher pressure level during daily physical activity.

Chagas disease alters the relationship between heart rate variability and daily physical activity

2009 ◽  
Vol 135 (2) ◽  
pp. 257-259 ◽  
Author(s):  
Lidiane Sousa ◽  
Manoel Otávio da Costa Rocha ◽  
Raquel Rodrigues Britto ◽  
Federico Lombardi ◽  
Antonio L. Ribeiro
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Chagas Disease ◽  
Daily Physical Activity ◽  
The Relationship

scholarly journals Long-Term Monitoring of Physical Behavior Reveals Different Cardiac Responses to Physical Activity among Subjects with and without Chronic Neck Pain

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
David M. Hallman ◽  
Svend Erik Mathiassen ◽  
Eugene Lyskov
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Neck Pain ◽  
Chronic Neck Pain ◽  
Daily Physical Activity ◽  
Physical Behavior ◽  
Long Term Monitoring ◽  
Term Monitoring

Background. We determined the extent to which heart rate variability (HRV) responses to daily physical activity differ between subjects with and without chronic neck pain.Method. Twenty-nine subjects (13 women) with chronic neck pain and 27 age- and gender-matched healthy controls participated. Physical activity (accelerometry), HRV (heart rate monitor), and spatial location (Global Positioning System (GPS)) were recorded for 74 hours. GPS data were combined with a diary to identify periods of work and of leisure at home and elsewhere. Time- and frequency-domain HRV indices were calculated and stratified by period and activity type (lying/sitting, standing, or walking). ANCOVAs with multiple adjustments were used to disclose possible group differences in HRV.Results. The pain group showed a reduced HRV response to physical activity compared with controls (p=.001), according to the sympathetic-baroreceptor HRV index (LF/HF, ratio between low- and high-frequency power), even after adjustment for leisure time physical activity, work stress, sleep quality, mental health, and aerobic capacity (p=.02). The parasympathetic response to physical activity did not differ between groups.Conclusions. Relying on long-term monitoring of physical behavior and heart rate variability, we found an aberrant sympathetic-baroreceptor response to daily physical activity among subjects with chronic neck pain.

scholarly journals DAILY PHYSICAL ACTIVITY AND HEART RATE VARIABILITY OF CHILDREN WITH PHYSICAL DISABILITIES

1989 ◽  
Vol 26 (6) ◽  
pp. 497-502
Author(s):  
Katsumi MITA ◽  
Naotaka ISHIDA ◽  
Toshiaki MIYAGAWA ◽  
Kumi AKATAKI ◽  
Tamotsu FUKUTANI ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Physical Disabilities ◽  
Daily Physical Activity

Heart Rate Variability in Sportive Elderly: Relationship with Daily Physical Activity

2004 ◽  
Vol 36 (4) ◽  
pp. 601-605 ◽  
Author(s):  
MARTIN BUCHHEIT ◽  
CHANTAL SIMON ◽  
ANTOINE URANIO VIOLA ◽  
STEPHANE DOUTRELEAU ◽  
FRANCOIS PIQUARD ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Daily Physical Activity

Heart Rate and Daily Physical Activity with Long-Duration Habitation of the International Space Station

2012 ◽  
Vol 83 (6) ◽  
pp. 577-584 ◽  
Author(s):  
Katelyn S. Fraser ◽  
Danielle K. Greaves ◽  
J. Kevin Shoemaker ◽  
Andrew P. Blaber ◽  
Richard L. Hughson
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
International Space Station ◽  
Space Station ◽  
Daily Physical Activity ◽  
International Space ◽  
Long Duration

scholarly journals Heart rate variability, exercise capacity and levels of daily physical activity in children and adolescents with mild-to-moderate cystic fibrosis

2021 ◽  
pp. 1-10
Author(s):  
Pitiguara de Freitas Coelho ◽  
Roberta Ribeiro Batista Barbosa ◽  
Rodrigo dos Santos Lugao ◽  
Fernanda Mayrink Gonçalves Liberato ◽  
Pâmela Reis Vidal ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cystic Fibrosis ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Lung Function ◽  
Children And Adolescents ◽  
Exercise Capacity ◽  
Pancreatic Insufficiency ◽  
Daily Physical Activity ◽  
Rr Intervals

Background: Autonomic nervous system balance is altered in cystic fibrosis (CF), although its influence on physical fitness has been poorly explored. Objective: This study aimed to evaluate the association of heart rate variability (HRV) with exercise capacity and levels of daily physical activity in children and adolescents with mild-to-moderate CF. Methods: A cross-sectional study including individuals with CF aged 6–18 years, not under CFTR modulator therapy, was performed. Sociodemographic (age, sex) and clinical information (airway colonization, pancreatic insufficiency, and genotyping) were collected. In addition, exercise capacity (modified shuttle test — MST), lung function (spirometry), body composition (bioimpedance), levels of daily physical activity (5-day accelerometer), and HRV (both at rest and during the MST) were evaluated. Results: 30 individuals (20 females) aged [Formula: see text] years, mean FEV[Formula: see text]%, were included. A sympathovagal balance (LF/HF) increase ([Formula: see text]) during the MST was shown, indicating a predominance of sympathetic modulation. The standard deviation of all RR intervals (SDNN) and the high frequency (HF) index during exercise correlated significantly with FEV1 ([Formula: see text], [Formula: see text] and [Formula: see text], [Formula: see text]; respectively). MST distance also correlated positively and significantly with SDNN ([Formula: see text], [Formula: see text]), square root of the mean of the sums of squares of frequencies between RR intervals greater than 50[Formula: see text]ms — RMSSD ([Formula: see text], [Formula: see text]), low frequency — LF ([Formula: see text], [Formula: see text]), HF ([Formula: see text], [Formula: see text]), dispersion of points perpendicular to the short-term identity line — SD1 ([Formula: see text], [Formula: see text]) and negatively with LF/HF ([Formula: see text], [Formula: see text]). Regarding daily physical activity, SDNN at rest ([Formula: see text], [Formula: see text]) and exercise ([Formula: see text], [Formula: see text]) showed positive correlations with time in moderate-to-vigorous activities. When normalizing the SDNN and classifying individuals as normal or altered, those presenting altered SDNN showed poorest FEV1 ([Formula: see text]) and lower exercise capacity ([Formula: see text]). Conclusion: HRV correlates with lung function, exercise capacity and levels of daily physical activity in children and adolescents with CF. The study highlights the influence of CF on autonomic function and suggests HRV measurement as an easy tool to be used in clinical settings as an alternative marker to monitor CF individuals.

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