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Chapter 5
Physical Activity & Disease - ES 2100
| Question | Answer |
|---|---|
| our energy currency is known as... | ATP |
| ATP can be broken down into __ and __ | anaerobic & aerobic |
| we have very little ATP in our body therefore... | it must be replenished at same rate its used |
| anaerobic respiration | fast - no need for O2 |
| this type of ATP is slow, has unlimited quantity & requires O2 | aerobic |
| energy is made available when... | ATP splits into ADP |
| as ATP increases , aerobic respiration ___ | increases |
| anaerobic respiration ___ as ATP increases | decreases |
| the ratio between amount of carbon dioxide you breath out & consume | respiration exchange ratio (RER) |
| the RER is determined to see.. | what carbon dioxide is being created |
| as intensity of exercise increases, ___ becomes the main fuel | carbohydrates |
| r= 0.70 when... | fat is only fuel |
| r=1 when... | carbohydrates are main fuel |
| r is between 0.70 and 1 when... | fuel is composed of carbohydrates & fats |
| RER= | volume CO2/ volume O2 |
| when the r value is greater than 1 this means... | your'e reaching maximum levels |
| intensity is inversely related to __ | duration |
| your body gets more energy from __ versus sugar | fats |
| vo2 difference is... | how much oxygen is released from arteries by whats left in veins |
| the greater the force or rate at which power is developed, the greater the need for... | ATP |
| long term sources of ATP are provided by: | fat & oxidative metabolism of carbohydrate (CHO) |
| vo2= | volume of oxygen |
| the magnitude of change in vo2 is influenced by.... | vo2 max |
| ___ doesn't increase instantaneously to the level required to generate ATP..it gradually increases until vo2 reached | vo2 |
| this type of test is used to evaluate a person's metabolic, cardiovascular and respiratory responses to increase in exercise intensity. | graded exercise test |
| the GXT measurement is usually taken in the... | last 30 seconds |
| oxygen consumption is the product of___ | cardiac output |
| college male vo2max | 45-50 ml/kg/min |
| college femal vo2 max | 35-40 ml/kg/min |
| cardiac patient vo2max | <20 ml/kg/min |
| elite athlete vo2max | >80 ml/kg/min |
| accumulation of lactic acid = | product of the rate & product of clearance |
| LA production increases due to: | increased ADP & EPI levels. increased FT fibers |
| clearance rate decreases due to: | less hepatic blood flow & flow during working muscles |
| venous blood returns the blood from// | the tissues |
| the difference between ocygen content of arterial blood and venous blood is called | oxygen extraction |
Created by:
Mariahj25
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