Term
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Definition
Key Terms #7 Ch. 8
Afterload: The aortic mean pressure. Resistance to blood being ejected from the left ventricle (and the pulmonary artery's pressure resistance to flow from the right ventricle to a lesser extent) |
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Term
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Definition
| The collective alterations during prolonged aerobic exercise or aerobic exercise in a hot environment at a steady state intensity. SV gradually increases while heart rate increases, yet arterial blood pressure declines. |
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Term
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Definition
| The sensation of shortness of breath during exercise typically found in people with poor aerobic fitness levels who attempt to exercise at intensities that significantly elevate arterial CO2 and H+ concentrations. |
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Term
| Frank-Starling Mechanism: |
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Definition
| An increased force of contraction, allowing increased venous return and better ventricular filling. Done to eject a higher volume of blood by forming more actin-myosin cross bridges to develop greater force with a greater stretch. |
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Term
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Definition
| An increase in ventilation in excess of the need from exercise. |
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Term
| Maximal Voluntary Ventilation: |
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Definition
| The maximal capacity to voluntarily move air in and out of the lungs. |
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Term
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Definition
| Also known as the end-diastolic volume, (EDV), which is determined by the filling capacity of the ventricle and the ease with which its filled with available pressure. |
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Term
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Definition
| The highest heart rate value achieved in an all-out effort to the point of volitional fatigue. Also known as HRmax, it is a highly reliable value that remains constant from day to day, but changes from year to year due to age related declines. |
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Term
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Definition
| The value representing the product between one's heart rate and systolic blood pressure. |
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Term
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Definition
| The plateau that the heart rate reaches when the HR is at the optimal level for meeting the circulatory demands at that specific rate of work. |
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Term
| Total Peripheral Resistance: |
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Definition
| Also known as TPR. The total resistance to flow of blood that is reduced during vasodilation in the active muscles, which typically takes place during prolonged exercise. |
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Term
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Definition
| The point during increased exerecise intensity where ventilation increases disproportionately to oxygen consumption, typically between 55-70% of VO2max. |
|
|
Term
|
Definition
Key Terms #7 Ch. 8
Afterload: The aortic mean pressure. Resistance to blood being ejected from the left ventricle (and the pulmonary artery's pressure resistance to flow from the right ventricle to a lesser extent) |
|
|
Term
|
Definition
| The collective alterations during prolonged aerobic exercise or aerobic exercise in a hot environment at a steady state intensity. SV gradually increases while heart rate increases, yet arterial blood pressure declines. |
|
|
Term
|
Definition
| The sensation of shortness of breath during exercise typically found in people with poor aerobic fitness levels who attempt to exercise at intensities that significantly elevate arterial CO2 and H+ concentrations. |
|
|
Term
| Frank-Starling Mechanism: |
|
Definition
| An increased force of contraction, allowing increased venous return and better ventricular filling. Done to eject a higher volume of blood by forming more actin-myosin cross bridges to develop greater force with a greater stretch. |
|
|
Term
|
Definition
| An increase in ventilation in excess of the need from exercise. |
|
|
Term
| Maximal Voluntary Ventilation: |
|
Definition
| The maximal capacity to voluntarily move air in and out of the lungs. |
|
|
Term
|
Definition
| Also known as the end-diastolic volume, (EDV), which is determined by the filling capacity of the ventricle and the ease with which its filled with available pressure. |
|
|
Term
|
Definition
| The highest heart rate value achieved in an all-out effort to the point of volitional fatigue. Also known as HRmax, it is a highly reliable value that remains constant from day to day, but changes from year to year due to age related declines. |
|
|
Term
|
Definition
| The value representing the product between one's heart rate and systolic blood pressure. |
|
|
Term
|
Definition
| The plateau that the heart rate reaches when the HR is at the optimal level for meeting the circulatory demands at that specific rate of work. |
|
|
Term
| Total Peripheral Resistance: |
|
Definition
| Also known as TPR. The total resistance to flow of blood that is reduced during vasodilation in the active muscles, which typically takes place during prolonged exercise. |
|
|
Term
|
Definition
| The point during increased exerecise intensity where ventilation increases disproportionately to oxygen consumption, typically between 55-70% of VO2max. |
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