KNR 280 Exam 1 UPDATED ACTUAL Questions and CORRECT
Answers
Mode type of activity (bike, run, lift)
Intensity how hard you work (light, moderate, hard)
Duration how long you exercise
Frequency How often you exercise
Absolute Workload Same number for all (6 mph, 350 lb)
Relative Workload Based on person (%HR, BW)
Acute Response (Short Term Change) Example: Exercise Responses
chronic adaption (Long Term) Example: Exercise Adaptions
Metabolism Energy Transfer and transformation
High - energy molecule Breaking phosphate bonds releases energy
Anabolism Build up
Catabolism breaking things down
1st Law of Thermodynamics Energy cannot be created or destroyed, only changed in form.
What do we convert to make more ATP? macronutrients
Macronutrients Carbs, Fats, Proteins and ATP
ATP structure adenine, ribose, 3 phosphate groups
Hydrolysis of ATP (Breaking ATP) ATP ------- ADP = Pi + energy for work + heat
Phosphorylation (Making ATP) ADP + Pi + energy -------- ATP
Efficency 60-70% of energy is lost as heat, remainder used for work
ADP + ADP ATP + AMP
, Carbs (CHO) Fuel Sources 4 kcal/g
Stored as glycogen
Fast energy
Fat Fuel Sources 9 kcal/g
Most stored energy
Slow use
Protein 4 kcal/g
Minor role
Aerobic "With oxygen", Low- to moderate in intensity and longer in duration
Example of Aerobic A Walk
Anaerobic "without oxygen, short, high intensity activities , quick ATP production for initial
movement
example of anaerobic sprinting
Differences between aerobic and anaerobic the two is how quickly you are able to circulate oxygen
CHO in the form of Glucose and Glycogen
We use Proteins in the form of: Amino Acids
Glycolytic (Lactic acid ) system relies on? anaerobic breakdown of CHO
The oxidative system relying on the aerobic breakdown CHO, Fat , and protein
of?
Hypoxic too little oxygen
Lactate Threshold is the point at which blood lactate begins to rapidly accumulate above resting
levels during exercise.
Lactate Always produced and cleared, even at rest
accumulation fatigue, lower pH, impaired performance
4 ways to clear lactate? 1. oxidation by heart/muscle
2. Conversion to glycogen in liver (Cori Cycle)
3. Conversion to Glucose (backwards glycolysis)
Cori Cycle recycles lactate produced by muscles during anaerobic activity
OBLA onset of blood lactate accumulation, marker of fatigue
Answers
Mode type of activity (bike, run, lift)
Intensity how hard you work (light, moderate, hard)
Duration how long you exercise
Frequency How often you exercise
Absolute Workload Same number for all (6 mph, 350 lb)
Relative Workload Based on person (%HR, BW)
Acute Response (Short Term Change) Example: Exercise Responses
chronic adaption (Long Term) Example: Exercise Adaptions
Metabolism Energy Transfer and transformation
High - energy molecule Breaking phosphate bonds releases energy
Anabolism Build up
Catabolism breaking things down
1st Law of Thermodynamics Energy cannot be created or destroyed, only changed in form.
What do we convert to make more ATP? macronutrients
Macronutrients Carbs, Fats, Proteins and ATP
ATP structure adenine, ribose, 3 phosphate groups
Hydrolysis of ATP (Breaking ATP) ATP ------- ADP = Pi + energy for work + heat
Phosphorylation (Making ATP) ADP + Pi + energy -------- ATP
Efficency 60-70% of energy is lost as heat, remainder used for work
ADP + ADP ATP + AMP
, Carbs (CHO) Fuel Sources 4 kcal/g
Stored as glycogen
Fast energy
Fat Fuel Sources 9 kcal/g
Most stored energy
Slow use
Protein 4 kcal/g
Minor role
Aerobic "With oxygen", Low- to moderate in intensity and longer in duration
Example of Aerobic A Walk
Anaerobic "without oxygen, short, high intensity activities , quick ATP production for initial
movement
example of anaerobic sprinting
Differences between aerobic and anaerobic the two is how quickly you are able to circulate oxygen
CHO in the form of Glucose and Glycogen
We use Proteins in the form of: Amino Acids
Glycolytic (Lactic acid ) system relies on? anaerobic breakdown of CHO
The oxidative system relying on the aerobic breakdown CHO, Fat , and protein
of?
Hypoxic too little oxygen
Lactate Threshold is the point at which blood lactate begins to rapidly accumulate above resting
levels during exercise.
Lactate Always produced and cleared, even at rest
accumulation fatigue, lower pH, impaired performance
4 ways to clear lactate? 1. oxidation by heart/muscle
2. Conversion to glycogen in liver (Cori Cycle)
3. Conversion to Glucose (backwards glycolysis)
Cori Cycle recycles lactate produced by muscles during anaerobic activity
OBLA onset of blood lactate accumulation, marker of fatigue
