Understanding energy systems and energy balance Flashcards
Which key energy system requires oxygen (mostly) ?
The Aerobic system
What is the key bi-product of anaerobic glycolysis?
Lactate
Exercise energy expenditure is:
The energy expended during exercise
non-exercise non-activity thermogenesis is?
The energy expended for everything we do that is not sleeping, eating, daily activity or exercise.
What is the thermic effect of feeding?
the increase in metabolic rate after the ingestion of a meal (the more calorie dense and or more protein in general the greater this effect)
What is BMR (basal metabolic rate)?
The energy required to sustain vital functions
Energy balance has a greater influence on weight loss than the macronutrient composition of a diet T or F ?
True
relating to TDEE, why might a client struggle with weight loss despite being in a predicted calorie deficit?
- Neat may have reduced
- Estimated energy expenditure (EEE) may have been overestimated
Which macronutrient has the highest thermic effect?
Protein
Where is ATP stored and how much can be stored (not an exact quantity)?
inside muscle cells
a small amount
What 3 primary energy systems are responsible for replenishing ATP?
- Phosphocreatine system (PCr)
- Anaerobic system (lactic acid)
- Aerobic system
Does the phosphocreatine system require oxygen?
No
For how long does the Phosphocreatine system generally last?
sub 10 seconds
The anaerobic energy system converts glucose into 2 WHATS and pyruvate which then gets converted into WHAT
2 ATP and converted into lactate
The aerobic energy system utilizes the WHAT cycle and produces which 3 things?
utilizes the KREBS cycle and produces
2 ATP
CO2
Hydrogen
