Highest Energy Expenditure During Different Types of Activity for a 70-Kilogram Person Form of Activity Calories per Hour
ক
Sawing wood
খ
Swimming
গ
Running (5.3 miles per hour)
ঘ
Walking up stairs rapidly
২.
During strenous exercise which of the following increases ordinarily
ক
Pulmonary Ventilation
খ
pH
গ
Pco2
ঘ
O2 Consumption
ব্যাখ্যা
During strenuous exercise, O2 consumption and CO2 formation can increase as much as 20-fold. Yet, in the healthy athlete, alveolar ventilation ordinarily increases almost exactly in step with the increased level of oxygen metabolism. The arterial PO2, PCO2, and pH remain almost exactly normal. In trying to analyze what causes the increased ven-