Effects of Temperature on the Oxygen Consumption and Heart Rate in the Inter-Tidal Wedge Clam, Donaxfaba (Gmelin)

1992 ◽  
Vol 3 (1) ◽  
pp. 81-90
Author(s):  
A. ESHKY ◽  
M. BA-AKDHAH
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Effects Of Temperature

Effects of temperature and body size upon heart rate and oxygen consumption in turtles

1960 ◽  
Vol 55 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Kenneth E. Hutton ◽  
Don R. Boyer ◽  
James C. Williams ◽  
Peter M. Campbell
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Body Size ◽  
Effects Of Temperature

CARDIORESPIRATORY SYSTEM UNDER BICYCLE ERGOMETER TEST IN SKIERS WITH DIFFERENT TRAINING STATUS (KOMI REPUBLIC)

2019 ◽  
pp. 76-84
Author(s):  
Yu.G. Solonin ◽  
T.P. Loginova ◽  
I.O. Garnov ◽  
A.L. Markov ◽  
A.A. Chernykh ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Komi Republic ◽  
Rate Pressure Product ◽  
Training Status ◽  
Maximum Oxygen Consumption ◽  
Bicycle Ergometry ◽  
Cardiorespiratory System ◽  
Unit Pulse ◽  
Ski Racers

The aim of the study is to examine the impact of training status on ski racers (Komi Republic) at rest and under bicycle ergometry evaluating their cardiorespiratory system parameters. Materials and Methods. The authors examined male ski racers with different training status: 22 first-rank sportsmen, 22 candidates for Master of Sports and 22 Masters of Sports. Athletes underwent bicycle ergometry loads up to refusal. Oxycon Pro system (Germany) was used. Then authors studied the complex of cardiorespiratory parameters, calculating maximum oxygen consumption and unit physiological cost. Results. At rest and under standard physical load (200 W) Masters of Sports demonstrate significantly increased training status among ski racers in such cardiorespiratory system parameters as heart rate, rate pressure product and oxygen pulse. Under standard physical load (200 W) statistically significant differences between first-rank sportsmen and candidates for Master of Sports are detected by heart rate, rate pressure product, respiration rate, respiratory minute volume and oxygen utilization coefficient. Such deviations indicate differences in training status. Under maximum load, the highest training status is found in Masters of Sports: bicycle ergometry load power and duration; unit pulse, pressor and cardiac cost, bulk and unit values of maximum oxygen consumption. Heart rate values, unit pulse and heart-vent cost indicate a high training status in candidates for Master of Sports under load up to refusal, if compared with first-rank sportsmen. Athletes’ organism under load up to refusal works more efficiently than under moderate load (200 W). The training status in ski racers (Komi Republic) is manifested in the saving cardiorespiratory system functions, both at rest and under standard bicycle ergometry, as well as in parameters of unit physiological cost under loads up to refusal and increased values of maximum oxygen consumption. Keywords: ski racers, Komi Republic, training status, bicycle ergometry loads, cardiorespiratory system, maximum oxygen consumption.

Oxygen Consumption, Heart Rate, and Blood Lactate Responses to an Acute Bout of Plyometric Depth Jumps in College-Aged Men and Women

2010 ◽  
Vol 24 (9) ◽  
pp. 2475-2482 ◽  
Author(s):  
Gregory A Brown ◽  
Michael W Ray ◽  
Bryce M Abbey ◽  
Brandon S Shaw ◽  
Ina Shaw
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Blood Lactate ◽  
Acute Bout ◽  
Men And Women

Accuracy of the Heart Rate Index Equation to Assess Oxygen Consumption in Obese Patients

2014 ◽  
Vol 46 ◽  
pp. 169-170
Author(s):  
Roger L. Sacks ◽  
Barry Franklin ◽  
Judy Boura ◽  
James Van Loon
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Obese Patients

alpha-Adrenergic control of oxygen delivery to myocardium during exercise in conscious dogs

1982 ◽  
Vol 242 (5) ◽  
pp. H805-H809 ◽  
Author(s):  
G. R. Heyndrickx ◽  
P. Muylaert ◽  
J. L. Pannier
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Oxygen Consumption ◽  
Coronary Blood Flow ◽  
Coronary Sinus ◽  
Oxygen Delivery ◽  
Left Ventricular ◽  
Conscious Dogs ◽  
Adrenergic Blockade ◽  
Adrenergic Control

alpha-Adrenergic control of the oxygen delivery to the myocardium during exercise was investigated in eight conscious dogs instrumented for chronic measurements of coronary blood flow, left ventricular (LV) pressure, aortic blood pressure, and heart rate and sampling of arterial and coronary sinus blood. After alpha-adrenergic receptor blockade a standard exercise load elicited a significantly greater increase in heart rate, rate of change of LV pressure (LV dP/dt), LV dP/dt/P, and coronary blood flow than was elicited in the unblocked state. In contrast to the response pattern during control exercise, there was no significant change in coronary sinus oxygen tension (PO2), myocardial arteriovenous oxygen difference, and myocardial oxygen delivery-to-oxygen consumption ratio. It is concluded that the normal relationship between myocardial oxygen supply and oxygen demand is modified during exercise after alpha-adrenergic blockade, whereby oxygen delivery is better matched to oxygen consumption. These results indicate that the increase in coronary blood flow and oxygen delivery to the myocardium during normal exercise is limited by alpha-adrenergic vasoconstriction.

Respiratory Metabolism During Pregnancy in the Guinea Pig

1957 ◽  
Vol 190 (3) ◽  
pp. 425-428 ◽  
Author(s):  
Richard M. Hoar ◽  
William C. Young
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Guinea Pig ◽  
Metabolic Rate ◽  
Adrenal Cortex ◽  
Guinea Pigs ◽  
Sharp Decrease ◽  
Zona Fasciculata ◽  
Respiratory Metabolism ◽  
Morphological Differences

Oxygen consumption and heart rate during pregnancy were measured in untreated, thyroxin-injected and thyroidectomized guinea pigs given I131. From impregnation until parturition, oxygen consumption increased 7.9% in untreated females. The increase continued until 5 days postpartum when a sharp decrease occurred. The increase is not accounted for by growth of the fetal mass. Comparable increases occurred in thyroxin-injected (16.2%) and thyroidectomized (11.9%) females, although the levels throughout were higher and lower, respectively, than in intact females. Heart rate did not increase. On the contrary, statistically significant decreases occurred in the untreated and thyroxin-injected females. Although the mechanism associated with the increased metabolic rate is not known, the possibility of thyroid participation would seem to be excluded. Involvement of the adrenal cortex is suggested by morphological differences in the cells of the zona fasciculata in pregnant and nonpregnant females and by evidence cited from other studies.

The validity of the use of heart rate in estimating oxygen consumption in static and in combined static/dynamic exercise

Ergonomics ◽  
1989 ◽  
Vol 32 (2) ◽  
pp. 141-148 ◽  
Author(s):  
S. MAAS ◽  
M. L. J. KOK ◽  
H. G. WESTRA ◽  
H. C G. KEMPER
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Dynamic Exercise
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