Energy expenditure, heart rate, rhythm and blood pressure in normal female subjects engaged in common hospitalized patient positions and modes of patient transfer

The main purpose of the pioneered Russian study was to compare tolerance of head-to-foot g-loads (+Gz) by female and male subjects rotated on a short-arm centrifuge before and after 8-d isolation using the subjective and objective data. Results of the investigation demonstrated compatibility of g-tolerance by men and women. However, during the runs before isolation heart rate in female subjects grew significantly in comparison to the male subjects. Though higher in women, dynamics of blood pressure measured at the earlobe and arm was not statistically different from the male data.

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ENERGY BALANCE AND VITAL SIGNS IN PEDIATRIC PATIENTS

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967120s00206 ◽

2020 ◽

Vol 8 (4_suppl3) ◽

pp. 2325967120S0020

Author(s):

Julie A. Young ◽

Jessica Napolitano ◽

Mitchell J. Rauh ◽

Jeanne Nichols ◽

Anastasia N. Fischer

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Energy Balance ◽

Energy Expenditure ◽

Vital Signs ◽

Negative Energy ◽

Negative Energy Balance ◽

Energy Deficit ◽

Energy Deficiency ◽

Males And Females

BACKGROUND: Prior studies have shown that vital signs such as heart rate, blood pressure and body temperature are depressed in patients with an eating disorder who have experienced a negative energy balance for a significant amount of time. More recently, a negative energy balance has been the focus of Relative Energy Deficiency in Sport (RED-S), which links energy availability to the health of multiple body systems in adults in as little as 5 days with a negative energy balance. High rates of disordered eating patterns have been reported in high school athletes. As adolescents grow, the consequences of a negative energy balance can be significant and potentially irreversible. Thus, vital signs may help clinicians quickly evaluate a patient’s energy status or highlight them for further evaluation. PURPOSE: The purpose of this study was to examine energy balance and vital signs in a cohort of adolescents who were seen by a sports dietitian to gain weight or optimize sports performance. METHODS: We evaluated 240 subjects, 83% female, average age 15.0±2.3 years. Heart rate and blood pressure were measured with a dynamometer in a seated position. Body temperature was measured orally. Height and weight were recorded. BMI was then calculated and evaluated by percentile. Energy intake was assessed using a 3-day food recall log. Energy expenditure was calculated using Harris Benedict Equation and combined with estimated exercise energy expenditure. Energy balance was estimated as energy intake minus energy expenditure. RESULTS: Average age was 15.03±2.71. 85% were female. 30% were below the 15th percentile for BMI. There were no differences in BMI percentiles between males and females (p=0.99). The average heart rate was 71.62±13.4 bpm and 19% were below the 10th percentile for heart rate. Average systolic blood pressure was 110±11 mm Hg and average diastolic blood pressure was 62±7 mmHg. Average temperature was 98.1±.4 degrees F. 88%were in a negative energy balance with an average energy deficit of 552±511 calories. There were no statistically significant differences in energy balance between males and females (p=0.08). CONCLUSIONS: A disproportional number of children with low BMI and heart rate percentiles was observed, which may indicate a long-standing energy deficiency. We also found a high proportion of adolescents who experienced a standalone negative energy balance itself or vital signs consistent with a negative energy balance. Additional studies are needed to study the relationships between energy deficit magnitude and duration in adolescents and children.

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Treadmill vs. floor walking: kinematics, electromyogram, and heart rate

Journal of Applied Physiology ◽

10.1152/jappl.1985.59.1.87 ◽

1985 ◽

Vol 59 (1) ◽

pp. 87-91 ◽

Cited By ~ 170

Author(s):

M. P. Murray ◽

G. B. Spurr ◽

S. B. Sepic ◽

G. M. Gardner ◽

L. A. Mollinger

Keyword(s):

Heart Rate ◽

Stride Length ◽

Sagittal Plane ◽

Treadmill Walking ◽

Emg Activity ◽

Normal Female ◽

Emg Patterns ◽

Female Subjects

To identify the degree of difference between treadmill and floor walking, kinematic, electromyographic (EMG), and heart rate measurements were recorded in seven normal female subjects during walking at three speeds on the treadmill and on the floor. During treadmill walking, subjects tended to use a faster cadence and shorter stride length than during floor walking. In addition the displacements of the head, hip, and ankle in the sagittal plane showed statistically significant differences between floor and treadmill walking. Average EMG activity was usually greater on the treadmill than on the floor; however, this difference was only significant for the quadriceps. Heart rate was significantly higher during fast treadmill walking than floor walking. In general, treadmill walking was not found to differ markedly from floor walking in kinematic measurements or EMG patterns.

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EFFECTS OF CAFFEINE INGESTION ON ENERGY EXPENDITURE, BLOOD PRESSURE, HEART RATE, AND MOOD STATE IN OLDER WOMEN 132

Medicine & Science in Sports & Exercise ◽

10.1097/00005768-199605001-00132 ◽

1996 ◽

Vol 28 (Supplement) ◽

pp. 22

Author(s):

P. J. Arciero ◽

C. B. Bougopoulos

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Energy Expenditure ◽

Older Women ◽

Mood State ◽

Caffeine Ingestion

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Role of alpha- and beta-adrenoceptors in sympathetically mediated thermogenesis

AJP Endocrinology and Metabolism ◽

10.1152/ajpendo.1993.264.1.e11 ◽

1993 ◽

Vol 264 (1) ◽

pp. E11-E17 ◽

Cited By ~ 8

Author(s):

E. E. Blaak ◽

M. A. van Baak ◽

K. P. Kempen ◽

W. H. Saris

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Energy Expenditure ◽

Whole Body ◽

Healthy Male ◽

Beta Adrenoceptor ◽

Beta 2 ◽

Body Energy ◽

Stimulation Of

This study was intended to investigate the role of alpha- and beta-adrenoceptor populations in the sympathetically mediated thermogenesis in healthy lean males. In the first study, the beta 1-, beta 2-, and beta 3-agonist isoprenaline was infused in increasing doses with and without simultaneous infusion of the beta 1-blocker atenolol (Iso and Iso+AT, respectively). There was an increase in whole body energy expenditure (EE) after infusing Iso+AT (P < 0.001) and an almost twofold higher increase after infusion of Iso only (P < 0.001). Stimulation of the beta 2-adrenoceptors by a specific agonist (salbutamol) resulted in a significant increase in EE (P < 0.001). The effect of stimulation of alpha 1-adrenoceptors on EE was measured by infusing increasing doses of the alpha 1-agonist phenylephrine. EE did not change, whereas blood pressure (BP) increased (P < 0.001) and heart rate decreased (P < 0.01). In addition to this study, the alpha 1-, alpha 2-, beta 1-, beta 2-, and beta 3-agonists norepinephrine and epinephrine were infused with simultaneous infusion of the beta 1- and beta 2-blocker propranolol. In both studies, there was no effect on EE, whereas BP increased (P < 0.01). In conclusion, in healthy male lean volunteers both beta 1- and beta 2-adrenoceptors are involved in the sympathetically mediated thermogenesis, whereas the alpha 1-, alpha 2-, and beta 3-adrenoceptors do not play a role.

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Acceptability and effects of a seated active workstation during sedentary work

International Journal of Workplace Health Management ◽

10.1108/ijwhm-03-2013-0008 ◽

2014 ◽

Vol 7 (1) ◽

pp. 2-15 ◽

Cited By ~ 30

Author(s):

Lucas J. Carr ◽

Hotaka Maeda ◽

Brandon Luther ◽

Patrick Rider ◽

Sharon J. Tucker ◽

...

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Cognitive Function ◽

Energy Expenditure ◽

Work Performance ◽

Muscle Activation ◽

Phase 1 ◽

Phase 2 ◽

Content Type ◽

Work Tasks

Purpose – The purpose of this paper is to test the user acceptability (Phase 1) and effects (Phase 2) of completing sedentary work while using a seated active workstation. Design/methodology/approach – In Phase 1, 45 sedentary employees completed an acceptability questionnaire immediately after performing sedentary work tasks (typing, mousing) while using the seated active workstation for 30 minutes. In Phase 2, the paper tested the differential effects of completing sedentary work tasks at two different workstations (sedentary workstation vs seated active workstation) on physiological (energy expenditure, muscle activity, heart rate, blood pressure), cognitive (learning, memory, attention) and work performance (typing and mousing ability) outcomes among 18 sedentary employees. Findings – In Phase 1, 96 percent of participants reported they would use the seated active workstation “daily” if provided access in their office. In Phase 2, working while using the seated active workstation increased energy expenditure (p<0.001; d=3.49), heart rate (p<0.001; d=1.26), systolic blood pressure (p=0.02; d=0.79), and muscle activation of the biceps femoris (p<0.001; d=1.36) and vastus lateralis (p<0.001; d=1.88) over the sedentary workstation. No between-group differences were observed for any measures of cognitive function. Mouse point and click time was slower while using the seated active workstation (p=0.02). Research limitations/implications – These findings suggest this seated active workstation to be acceptable by users and effective for offsetting occupational sedentary time without compromising cognitive function and/or work performance. Originality/value – The present study is the first to test the potential of this seated active workstation in any capacity.

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Estimation of energy expenditure of Nordic walking: a crossover trial

BMC Sports Science Medicine and Rehabilitation ◽

10.1186/s13102-021-00240-0 ◽

2021 ◽

Vol 13 (1) ◽

Author(s):

Sora Baek ◽

Yuncheol Ha

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Energy Expenditure ◽

Oxygen Uptake ◽

Systolic Blood Pressure ◽

Lower Limb ◽

Surface Electromyography ◽

Minute Ventilation ◽

Lower Limb Muscles ◽

Limb Muscles

Abstract Background Nordic walking (NW) requires more energy compared with conventional walking (W). However, the metabolic equation for NW has not been reported. Therefore, this study aimed to characterize responses in oxygen uptake, minute ventilation, heart rate, systolic blood pressure, and surface electromyography of the upper and lower limb muscles during NW and W and develop a metabolic equation for energy expenditure (E, mL·kg− 1·min− 1) of NW. Methods This study was performed in a randomized, controlled, crossover design to test the energy expenditure during NW and W. Fifteen healthy young men were enrolled (aged 23.7 ± 3.0 years). All participants performed two randomly ordered walking tests (NW and W) on a treadmill at a predetermined stepwise incremental walking speed (3–5 km·h− 1) and grade (0–7%). The oxygen uptake, minute ventilation, heart rate, systolic blood pressure, and surface electromyography signals of the three upper limb muscles and three lower limb muscles in their right body were recorded and compared between NW and W using paired-t test. Multiple linear regression analysis was used to draw estimation of E during W and NW. Results Oxygen uptake (+ 15.8%), minute ventilation (+ 17.0%), heart rate (+ 8.4%), and systolic blood pressure (+ 7.7%) were higher in NW than in W (P < .05). NW resulted in increased muscle activity in all of the upper limb muscles (P < .05). In the lower limb, surface electromyography activities in two of the three lower limb muscles were increased in NW than in W only during level walking (P < .05). Energy expenditure during W and NW was estimated as follows: ENW = 6.1 + 0.09 × speed + 1.19 × speed × grade and EW = 4.4 + 0.09 × speed + 1.20 × speed × grade. Conclusion NW showed higher work intensity than W, with an oxygen consumption difference of 1.7 mL·kg− 1·min− 1. The coefficients were not different between the two walking methods. NW involved more muscles of the upper body than W.

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Energy Expenditure during Acute Weight Training Exercises in Healthy Participants: A Preliminary Study

Applied Sciences ◽

10.3390/app11156687 ◽

2021 ◽

Vol 11 (15) ◽

pp. 6687

Author(s):

Muhammad Adeel ◽

Chien-Hung Lai ◽

Chun-Wei Wu ◽

Jiunn-Horng Kang ◽

Jian-Chiun Liou ◽

...

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Energy Expenditure ◽

Energy Cost ◽

Perceived Exertion ◽

Weight Training ◽

Trained Group ◽

Training Experience ◽

Rate Of Perceived Exertion ◽

Training Exercises

Energy expenditure during weight training exercises produces great fitness and health benefits for humans, but few studies have investigated energy expenditure directly during weight training. Therefore, in this study, we aimed to determine energy costs during three training sessions consisting of three different exercises. Ten participants were randomly allocated into two groups: an untrained (n = 5, with no weight training experience) and a trained group (n = 5, with some weight training experience). Each participant completed three training sessions on separate days. While wearing a mask for indirect calorimetric measurements, each participant participated in training sessions conducted with three dumbbell exercises: the bent-over row, deadlift, and lunge. Metabolic equivalents (METs), energy expenditure (EE), respiratory exchange ratio (RER), heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and rate of perceived exertion (RPE) were measured. The total energy cost was calculated from the oxygen consumption (VO2) during each exercise. Our results showed that the METs of a single training session were 3.3 for the untrained group and 3.4 for the trained group, while the sum of the EE was 683–688 and 779–840 kcal, respectively. The physiological parameters, such as heart rate (p = 0.001 *) for the lunge and rate of perceived exertion (p = 0.005 *) for the bent-over row, changed significantly in both groups. It was concluded that the exercise protocol of this study involved a moderate intensity of 2.4–3.9 METs. The energy cost of each training exercise was between 179 and 291 kcal.

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Ergonomical Assessment on Hand Operated Chaff Cutter by Rural Women Workers

International Journal of Bio-resource and Stress Management ◽

10.23910/1.2021.2234a ◽

2021 ◽

Vol 12 (5) ◽

pp. 490-495

Author(s):

Sathish Akki ◽

◽

Nirmala Bangi ◽

Suresh Batta ◽

Nagaraj Basani ◽

...

Keyword(s):

Heart Rate ◽

Oxygen Consumption ◽

Energy Expenditure ◽

Pulse Rate ◽

Oxygen Consumption Rate ◽

Consumption Rate ◽

Age Group ◽

Female Workers ◽

Expenditure Rate ◽

Female Subjects

A study was conducted to ease the fodder cutting operations a commercially available hand chaff cutter (Sokhiya Agricultural Industries, Jaipur, India) during 2019–20 in the Department of Farm Machinery and Power Engineering at College of Agricultural Engineering, Sangareddy, Telangana, India. The assessment was done using with 3 different age group female workers who regularly feed to the animals to assess its suitability for workers of the southern region of India. The parameters used for the Ergonomical evaluation include machine operation at different forces are heart rate, pulse rate, oxygen consumption rate, and energy expenditure rate. The average heart rate for female subjects of P1, P2 and P3 was recorded before the operation is 79, 76 and 81 beats min-1 and after the operation is 109, 108 and 113 beats min-1 for various fodders. The average pulse rate for female subjects of P1, P2, and P3 was recorded before the operation is 62, 68, and 63 beats min-1 and after the operation is 80, 80, and 82 beats min-1 for various fodders. The average oxygen consumption rate and energy expenditure rate of female subjects of P1, P2 and P3 were found to be 0.61, 0.59 and 0.66 liter min-1, and 12.68, 12.36 and 13.74 KJ min-1 respectively after operation of chaff cutter. The physiological parameters are heart rate, pulse rate, oxygen consumption rate, and energy consumption rate increased more rapidly for all age group female workers after operation of chaff cutter with 3 various fodders.

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