Energy Expenditure Estimate by Heart-Rate Monitor and a Portable Electromagnetic-Coil System

The aim of this article was to compare 2 portable devices (a heart-rate monitor and an electromagnetic-coil system) that evaluate 2 different physiological parameters—heart rate (HR) and ventilation (VE)—with the objective of estimating energy expenditure (EE). The authors set out to prove that VE is a more pertinent setting than HR to estimate EE during light to moderate activities (sitting and standing at rest and walking at 4, 5, and 6 km/hr). Eleven healthy men were recruited to take part in this study (27.6 ± 5.4 yr, 73.7 ± 9.7 kg). The authors determined the relationships between HR and EE and between VE and EE during light to moderate activities. They compared EE measured by indirect calorimetry (EEREF) with EE estimated by HR monitor (EEHR) and EE estimated by electromagnetic coils (EEMAG) in upright sitting and standing positions and during walking exercises. They compared EEREF with EEHR and EEMAG. The results showed no significant difference between the values of EEREF and EEMAG. However, they showed several significant differences between the values of EEREF and EEHR (for standing at rest and walking at 5 and 6 km/hr). These results showed that the electromagnetic-coil system seems to be more accurate than the HR monitor to estimate EE at rest and during exercise. Taking into consideration these results, it would be interesting to associate the parameters VE and HR to estimate EE. Furthermore, a new version of the electromagnetic-coil device was recently developed and provides the possibility to perform measurement under daily life conditions.

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Heart rate responses of two breeds of four-gaited horses to a standardised field gaited test

Comparative Exercise Physiology ◽

10.3920/cep11013 ◽

2012 ◽

Vol 8 (1) ◽

pp. 41-46 ◽

Cited By ~ 9

Author(s):

H.C. Manso Filho ◽

H.E.C.C.C. Manso ◽

K.H. McKeever ◽

S.R.R. Duarte ◽

J.M.G. Abreu

Keyword(s):

Heart Rate ◽

Energy Expenditure ◽

Negative Correlation ◽

Repeated Measures ◽

Recovery Period ◽

T Test ◽

Heart Rate Monitor ◽

Positive Correlation ◽

Gaited Horses ◽

Athletic Horse

In order to understand how gaited horses use their energy during exercise, a standardised field gaited test (SFGT) was developed to assess energy expenditure of four beat gaited horses independently of size, sex or breed. This work aimed at developing such an SFGT, using as main measurement parameter the heart rate (HR) of horses during the SFGT performance. Thirty-one four beat gaited horses were evaluated and divided into two groups: FIT (conditioned) and UNFIT (not conditioned). Horses were submitted to the SFGT and their heart rates were measured with a heart rate monitor as follows: right after being mounted, at the beginning of pre-test (HRSADDLE); at 5, 10, 15, 20, 25 and 30 minutes of four beat gait dislocation; and at 15 minutes after the recovery period (T+15). Maximum HR (HRMAX); HR percentage over 150 beats per minute (HR%≯150), HR percentage over 170 beats per minute (HR%≯170), and average HR during the four beat gait stage (HRM@M) of SFGT were calculated. Results were analysed by ANOVA for repeated measures. Where significant differences were observed, ‘T’ test was performed and significance was set at 5%. The FIT group presented HRMAX, HR+15, HRM@M, HR%≯150 and HR%≯170 rates lower (P<0.05) than the UNFIT group. It was noted that there was a negative correlation between fitness and HRMAX (R=−0.67; P<0.001) and a positive correlation between HRMAX and HR+15 (R=0.60; P<0.001) when comparing the FIT to the UNFIT horses. In conclusion, during the SFGT, the FIT group was more efficient in energy expenditure than the UNFIT group, based on the results observed for the significantly lower HRs during the SFGT. It is relevant to note that the SFGT developed and used in this research, which was easily reproduced and accurate, was able to detect and confirm important adaptations related to fitness in the athletic horse.

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Validation of Heart Rate Monitor-Based Predictions of Oxygen Uptake and Energy Expenditure

The Journal of Strength and Conditioning Research ◽

10.1519/jsc.0b013e3181a39277 ◽

2009 ◽

Vol 23 (5) ◽

pp. 1489-1495 ◽

Cited By ~ 21

Author(s):

Paul G Montgomery ◽

Daniel J Green ◽

Naroa Etxebarria ◽

David B Pyne ◽

Philo U Saunders ◽

...

Keyword(s):

Heart Rate ◽

Energy Expenditure ◽

Oxygen Uptake ◽

Heart Rate Monitor

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Description of a human direct calorimeter, with a note on the energy cost of clerical work

British Journal Of Nutrition ◽

10.1079/bjn19860003 ◽

1986 ◽

Vol 55 (1) ◽

pp. 1-6 ◽

Cited By ~ 25

Author(s):

Joan D. Webster ◽

Gillian Welsh ◽

J. S. Garrow

Keyword(s):

Physical Activity ◽

Heart Rate ◽

Energy Expenditure ◽

Human Subjects ◽

Movement Detector ◽

Urinary Cortisol ◽

Clerical Work ◽

Significant Difference ◽

Urinary Cortisol Excretion ◽

Cortisol Excretion

1. A heat-sink calorimeter, suitable for the measurement of energy expenditure in human subjects over periods up to 26 h, is described.2. The performance of the calorimeter is illustrated by a study of four normal subjects at rest or performing clerical work for a period of 7.5 h. Each condition was measured in duplicate in each subject. On the resting days the subjects were recumbent, and on the working days they were seated throughout the measurement period. Heart rate was monitored by infra-red telemetry and physical activity by an ultrasound movement detector. Urinary cortisol excretion was also measured as an indicator of stress.3. In each subject the mean heat loss on working days was higher than that on resting days: the increase ranged from 5.1 % to 16.7, with a mean value of 10.0% (P = 0.015). There was no significant difference between resting and working days in heart rate, physical activity or urinary cortisol excretion.4. The present study confirms that tiring clerical work has very little effect on 24 h energy expenditure.

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Physiological changes in cycle rickshaw pullers after strenuous exercise

International Journal of Occupational Safety and Health ◽

10.3126/ijosh.v2i2.6567 ◽

2012 ◽

Vol 2 (2) ◽

pp. 23-26

Author(s):

Debashis Manna ◽

Sridhar Thakur ◽

Chandan K Pradhan

Keyword(s):

Heart Rate ◽

Energy Expenditure ◽

Occupational Safety ◽

Phase 1 ◽

Strenuous Exercise ◽

Maximal Heart Rate ◽

Mean Values ◽

Control Subjects ◽

Significant Difference ◽

Working Heart

Background: Cycle Rickshaw is a human-powered transportation device. A large number of people remain engaged in the occupation of pulling cycle rickshaw. Objectives: The objectives of the study were to assess nutritional status of the cycle rickshaw pullers and their workload by working heart rate and energy expenditure. Methods and Materials: Eighteen rickshaw pullers and eleven control subjects were selected after clinical examination. Subjects were asked to pull the rickshaw in two phases - phase 1 (before lunch) and phase 2 (after lunch) each of 3 cycles of 15 min duration each followed by 15 min rest with two passengers. Heart rate was recorded continuously using a heart rate monitor. Average working heart rate (AWHR), peak working heart rate (PWHR) and energy expenditure (EE) were calculated. Maximal heart rate (HRmax) was also recorded in the laboratory. The control subjects were allowed to work in a cycle ergometer in the laboratory. Results: There was no significant difference between the mean values of rickshaw pullers and those of control subjects in relation to age, BMI, fat% and HRmax (beats/min). The AWHR, PWHR and EE values of rickshaw pullers showed the workload as ‘heavy’ to ‘very heavy’ category. Conclusion: The result of the study will be beneficial for cycle rickshaw pullers, health administrators and manufacturers of cycle rickshaw.DOI: http://dx.doi.org/10.3126/ijosh.v2i2.6567 International Journal of Occupational Safety and Health, Vol 2. No 2 (2012) 23-26

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Relationship Between Heart Rate, Oxygen Consumption, and Energy Expenditure in Futsal

Frontiers in Psychology ◽

10.3389/fpsyg.2021.698622 ◽

2021 ◽

Vol 12 ◽

Author(s):

Henrique Santos da Silva ◽

Fabio Yuzo Nakamura ◽

Marcelo Papoti ◽

Alexsandro Santos da Silva ◽

Julio Wilson Dos-Santos

Keyword(s):

Heart Rate ◽

Oxygen Consumption ◽

Energy Expenditure ◽

Treadmill Running ◽

Concordance Correlation ◽

Altman Plot ◽

Metabolic Equivalents ◽

Significant Difference ◽

Continuous Test ◽

Good Individual

The primary aim of this study was to compare the measured oxygen consumption (Measured-VO2) in a simulated futsal game (S-Game) with the estimated oxygen consumption (Estimated-VO2) through a regression equation between heart rate (HR) and oxygen consumption (VO2) (HR-VO2) in treadmill running, and a secondary aim was to calculate the total energy expenditure (EE) in S-Game. Ten professional players (22.20 ± 3.22 years) were evaluated. HR-VO2 was determined individually in the continuous test on the treadmill (ContTest). The Measured-VO2 in S-Game was compared with the Estimated-VO2 in the ContTest. Alactic and lactic pathways were estimated by VO2. The Estimated-VO2 presented no statistically significant difference with the Measured-VO2, using the paired t-test (p = 0.38). However, the correlation between Estimated- and Measured-VO2 was very weak (r = −0.05), and it presented poor agreement (concordance correlation coefficient = −0.04). In addition, a Bland–Altman plot presented bias of −2.8 ml/kg/min and individual difference as large as 19 ml/kg/min. The HR-VO2 determined by the ContTest was not a good individual predictor of VO2. The high intensity and intermittent nature of the futsal game possibly caused dissociation in the HR-VO2 relationship. ContTest is not recommended for estimating VO2 and calculating individual EE in the futsal game. This is recommended only for the group mean. The total EE in S-Game was 13.10 ± 1.25 kcal.min−1 (10.81 ± 1.57 metabolic equivalents). The contributions from the metabolic pathways were as follows: aerobic (93%), alactic (5%), and lactic (2%).

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Validation of the Polar S410 Heart Rate Monitor for Estimating Energy Expenditure in Women

Medicine & Science in Sports & Exercise ◽

10.1249/00005768-200605001-02816 ◽

2006 ◽

Vol 38 (Supplement) ◽

pp. S463

Author(s):

Mia K. Newlin ◽

Jonathan E. Wingo ◽

Matthew S. Ganio ◽

Jennifer L. Trilk ◽

Kirk J. Cureton

Keyword(s):

Heart Rate ◽

Energy Expenditure ◽

Heart Rate Monitor

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Training-induced changes in daily energy expenditure: Methodological evaluation using wrist-worn accelerometer, heart rate monitor, and doubly labeled water technique

PLoS ONE ◽

10.1371/journal.pone.0219563 ◽

2019 ◽

Vol 14 (7) ◽

pp. e0219563 ◽

Cited By ~ 7

Author(s):

Hannu Kinnunen ◽

Keijo Häkkinen ◽

Moritz Schumann ◽

Laura Karavirta ◽

Klaas R. Westerterp ◽

...

Keyword(s):

Heart Rate ◽

Energy Expenditure ◽

Doubly Labeled Water ◽

Daily Energy Expenditure ◽

Heart Rate Monitor ◽

Daily Energy ◽

Induced Changes ◽

Methodological Evaluation

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Mice lacking melanin-concentrating hormone receptor 1 demonstrate increased heart rate associated with altered autonomic activity

AJP Regulatory Integrative and Comparative Physiology ◽

10.1152/ajpregu.00134.2004 ◽

2004 ◽

Vol 287 (4) ◽

pp. R749-R758 ◽

Cited By ~ 64

Author(s):

Annika Åstrand ◽

Mohammad Bohlooly-Y ◽

Sara Larsdotter ◽

Margit Mahlapuu ◽

Harriet Andersén ◽

...

Keyword(s):

Heart Rate ◽

Nervous System ◽

Autonomic Nervous System ◽

Body Temperature ◽

Energy Expenditure ◽

Dark Phase ◽

Wild Type ◽

Autonomic Nervous ◽

Significant Difference ◽

Melanin Concentrating Hormone

Melanin-concentrating hormone (MCH) plays an important role in energy balance. The current studies were carried out on a new line of mice lacking the rodent MCH receptor (MCHR1−/− mice). These mice confirmed the previously reported lean phenotype characterized by increased energy expenditure and modestly increased caloric intake. Because MCH is expressed in the lateral hypothalamic area, which also has an important role in the regulation of the autonomic nervous system, heart rate and blood pressure were measured by a telemetric method to investigate whether the increased energy expenditure in these mice might be due to altered autonomic nervous system activity. Male MCHR1−/− mice demonstrated a significantly increased heart rate [24-h period: wild type 495 ± 4 vs. MCHR1−/− 561 ± 8 beats/min ( P < 0.001); dark phase: wild type 506 ± 8 vs. MCHR1−/− 582 ± 9 beats/min ( P < 0.001); light phase: wild type 484 ± 13 vs. MCHR1−/− 539 ± 9 beats/min ( P < 0.005)] with no significant difference in mean arterial pressure [wild type 110 ± 0.3 vs. MCHR1−/− 113 ± 0.4 mmHg ( P > 0.05)]. Locomotor activity and core body temperature were higher in the MCHR1−/− mice during the dark phase only and thus temporally dissociated from heart rate differences. On fasting, wild-type animals rapidly downregulated body temperature and heart rate. MCHR1−/− mice displayed a distinct delay in the onset of this downregulation. To investigate the mechanism underlying these differences, autonomic blockade experiments were carried out. Administration of the adrenergic antagonist metoprolol completely reversed the tachycardia seen in MCHR1−/− mice, suggesting an increased sympathetic tone.

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