scholarly journals Ergonomical Assessment on Hand Operated Chaff Cutter by Rural Women Workers

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.

scholarly journals Metabolic responses during practice of exergames in adults according to sex

2021 ◽  
Vol 20 (2) ◽  
pp. 224-234
Author(s):  
Moane Marchesan Krug ◽  
Aline Rodrigues Barbosa
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Energy Expenditure ◽  
Confidence Interval ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Metabolic Responses ◽  
Metabolic Equivalent ◽  
Adult Men ◽  
Dependent Variables

Objective: To analyze the metabolic responses occurring during the practice of exergames in terms of energy expenditure, oxygen consumption rate, metabolic equivalent and heart rate in adult men and women. Methods: The present study sample was comprised of 102 adults (52 males). Energy expenditure, oxygen consumption rate and metabolic equivalent were assessed with a portable gas analyzer (K4b2). Heart rate was measured with a frequencymeter. All dependent variables were assessed at rest and during the exergame session, which was comprised of four X-box 360 games (volleyball, boxing, athletics, and bowling). Results: Mean age was 34.8 ± 13.4 years. There was a significant increase in resting values during exergame sessions for energy expenditure (male: 467.52%; p < 0.001; female: 393.72%; p < 0.001), oxygen consumption rate (male: 453.97%; p < 0.01; female: 384.74%; p < 0.001), metabolic equivalent (male: 457.40%; p < 0.001; female: 384.74%; p < 0.001) and heart rate (male: 95.10%; p < 0.001; female: 92.26; p < 0.001). When compared to women, men showed significantly higher values for energy expenditure (95% confidence interval = -12.53; -6.67), oxygen consumption rate (95% confidence interval = -4.01; -0.80) and metabolic equivalent (95% confidence interval = -1.18; 0.27) during exergames. Conclusion: A session of exergames is capable of increasing energy expenditure, oxygen consumption rate, metabolic equivalent and heart rate in adults. Men showed higher values in metabolic parameters when compared to women.

An electronic system for cardiac and metabolic evaluation

1964 ◽  
Vol 19 (1) ◽  
pp. 153-156
Author(s):  
W. G. Kubicek ◽  
R. P. Patterson
Keyword(s):  
Blood Pressure ◽  
Oxygen Consumption ◽  
Arterial Blood Pressure ◽  
Pulse Rate ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Electronic System ◽  
Minute Volume ◽  
Arterial Blood ◽  
Expired Air

An electronic system was developed that: computes the oxygen consumption rate of a human subject while breathing room air; measures the flow rate of the expired air, expired air minute volume, tidal volume, arterial blood pressure, and pulse rate; and records the electrocardiogram. The flow rate of the expired air and the fraction concentrations of the CO2 and O2 in the expired air are measured with electronic gas analyzers and then electronically computed to give a continuous analog record of the oxygen consumption rate. All of the variables are continuously recorded in analog form. The average values of oxygen consumption rate, arterial blood pressure, or expired air minute volume and pulse rate are recorded in digital form with print out every minute. analog computer analysis of O2 consumption; continuous analog recording of expired airflow rate and minute volume, tidal volume, arterial blood pressure, and pulse rate; analog-to-digital conversion of O2 consumption, arterial blood pressure, pulse rate, and expired air minute volume; continuous recording of O2 consumption for subject breathing air; continuous electronic computation of O2 consumption Submitted on June 24, 1963

Some physiological responses of man to workload and environment

1961 ◽  
Vol 16 (3) ◽  
pp. 413-420 ◽  
Author(s):  
C. W. Suggs ◽  
W. E. Splinter
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Relative Humidity ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Mechanical Efficiency ◽  
Prediction Equation ◽  
Ventilation Rate ◽  
Three Dimensions ◽  
High Workload

The heart rate, ventilation rate, oxygen consumption rate, and mechanical efficiency responses of a subject to a series of temperatures, relative humidities, and workloads were observed. A quadratic prediction equation of each of the responses as steady-state functions of the independent variables was derived. Each of the equations represents a four-dimensional hypersurface. For the heart rate, ventilation rate, and oxygen consumption rate the hypersurfaces are quite similar, the responses increasing rapidly with respect to workload and about one-third as rapidly with respect to temperature. The effect of relative humidity was present primarily as interactions. Mechanical efficiency was represented by a more complex hypersurface. In three dimensions, with relative humidity as a parameter, the response was a saddle-shaped surface with the highest efficiency at a condition of low temperature, high workload. At constant environment, the heart rate responses of 19 subjects to workloads was observed and found to be linear with a normal distribution of slopes. Submitted on May 2, 1960

scholarly journals The impact of high and low atmospheric pressure in the Jordanian environment on some physiological variable for runners .

2013 ◽  
Vol 4 (2) ◽  
pp. 364
Author(s):  
Baker Thnibat
Keyword(s):  
Oxygen Consumption ◽  
Energy Expenditure ◽  
Atmospheric Pressure ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Maximal Oxygen Consumption ◽  
Training Groups ◽  
Low Atmospheric Pressure ◽  
The Impact ◽  
High Atmospheric Pressure

<p>The study aimed at identifying the impact of difference between the areas of high atmospheric pressure in the Jordanian environment on some physiological variable ( estimating maximal oxygen consumption , estimating rate of Energy expenditure, and hemoglobin ,vital capacity), for runners .</p><p>  The study sample consisted of (16) athletes who practice ( middle and long – distance running). A number of statistical methods were used to answer the questions of the study ( arithmetic means , standard deviations , Mann.Whiteny test ,and the result of Kolmogorov – Smirnov tests ) .</p><p>  The study result concluded that there was apriority for the measurements which were conducted on the training groups of low atmospheric pressure in comparison with the other group, with regard to the  variables (maximal oxygen consumption , rate of Energy expenditure, and hemoglobin). The study result also showed that there was apriority for the measurements which were conducted on the training groups of high  atmospheric pressure in comparison with the other group, regarding  to the  variables (maximal oxygen consumption , rate of Energy expenditure, and hemoglobin).in the areas of high  atmospheric pressure.</p><p>The study result also suggested that ther were no statistically significant differences between two training groups with regard to the study variables of (maximal oxygen consumption , rate of Energy expenditure, and hemoglobin ,vital capacity), were measured in  of high atmospheric pressure areas .</p><p>The study recommended about building sports facilities that simulate the areas of low atmospheric pressure , because of the expected role that the factors would play in improving some physiological variables .</p>

Role of splanchnic and lumbar sympathetic nerves in physiologic responses to fever and hypoxia in dogs

1959 ◽  
Vol 196 (3) ◽  
pp. 685-690
Author(s):  
W. G. Kubicek ◽  
W. F. Geber ◽  
J. W. Geiger ◽  
E. A. Johnson
Keyword(s):  
Blood Pressure ◽  
Oxygen Consumption ◽  
Lactic Acid ◽  
Blood Glucose ◽  
Pulse Rate ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Sympathetic Nerves ◽  
Blood Oxygen ◽  
Blood Ph

Induced fever up to 42°C rectal temperature produced an increase in oxygen consumption rate, plasma creatinine, blood lactic acid, hematocrit, blood oxygen content, blood pH, pulse rate, a decrease in blood sugar and a fall in blood CO2 content. Hypoxia superimposed upon the fever tended to produce an increase in blood pressure, hematocrit and pulse rate. Hypoxia probably depressed cerebral cortical activity in the unanesthetized febrile dogs. The most important function of the splanchnic and lumbar sympathetic nerves was apparently the control of the circulatory system and secondly the partial regulation of blood glucose probably through liberation of epinephrine from the adrenal medulla. A reduction in heat tolerance of the animals was observed after sympathectomy. The effects of anesthesia were apparently a reduced sensitivity of the respiratory centers and chemoreceptors. When compared to the unanesthetized experience, lower values were observed for oxygen consumption rate, blood pH, blood oxygen content, hematocrit, plasma creatinine and blood lactic acid, and in higher values for pulse rate, blood pressure, blood CO2 content and blood glucose.

Relative Potencies of Thyroxine and Triiodothyronine Based on Various Criteria in Thiouracil-Treated Chickens

1957 ◽  
Vol 190 (3) ◽  
pp. 413-418 ◽  
Author(s):  
W. S. Newcomer
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Rectal Temperature ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Control Level ◽  
Relative Potencies

Relative sensitivities of various criteria, which were found to be suitable qualitative indicators of thyroxine and triiodothyronine, were determined by calculating and comparing the amounts of each hormone necessary to maintain the control level of each criterion in thiouracil-treated chicks. Relative sensitivities of the criteria used for determining action of thyroxine were: feather length > rectal temperature > weight of the thyroid > oxygen consumption rate > heart rate > suffocation time; of triiodothyronine: feather length > rectal temperature > suffocation time > thyroid weight > oxygen consumption rate > heart rate. Relative potencies of thyroxine and triiodothyronine were determined by comparing the magnitudes of responses of each of the above criteria to equal or equivalent quantities of these two hormones. Thyroxine and triiodothyronine exhibited equal potency in affecting the above criteria in thiouracil-treated chicks except for a) antigoiterogenic action in which case thyroxine was more potent than triiodothyronine and possibly b) elevation of rectal temperature for which action triiodothyronine appeared to be the more potent hormone.

Some responses of humans to thermal radiation

1965 ◽  
Vol 20 (5) ◽  
pp. 1000-1005
Author(s):  
Charles W. Suggs
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Thermal Radiation ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Ventilation Rate ◽  
Exercise Ventilation ◽  
Cool Environment ◽  
Radiant Temperature ◽  
Thermal Intensity

The effects of thermal radiation on heart rate, ventilation rate, and oxygen consumption rate were investigated at various conditions of dry-bulb temperature, air velocity, and exercise. Ventilation rate and oxygen consumption rate were essentially independent of thermal radiation under all the environmental conditions investigated. However, heart rate increased appreciably with increases in thermal radiation provided the environment was already warm or hot. In the range between 70 and 100 F dry bulb, a 7 F increase in mean radiant temperature was found to elicit the same average increase in heart rate as a 1 F increase in dry bulb. For a cool environment the response tended to be reversed with the heart rate decreasing as the environment was made more comfortable by the addition of thermal radiation. Exercise shifted the point at which this reversal occurred toward lower temperatures. heat stress; heart rate; thermal intensity Submitted on July 16, 1964

Sign in / Sign up

Export Citation Format

Share Document