NASM CPT CH.4 (video notes plus NASM study guide) Flashcards
The study of how energy is transferred into usable forms in human body thru different chemical reactions
bioenergetics
process which nutrients acquired, used and disposed of
metabolism
3 forms of energy
fat, carbs, protein
Carbs
fuel for all activities; digested and turned into glucose; absorbed and transported thru blood w/insulin and enters cells
must be replenished often due to limited storage ability
lack of carbs can cause fatigue, poor mental function, lack of energy/endurance
Carbs are stored as ______________
glycogen - stored in liver and muscles; used in intense exercise
Fat
triglycerides - chemical forms of fat
- used in long endurance, like marathons, and low intensity
Protein
becomes significant source of fuel in starvation
must convert to glucose first - thru gluconeogenesis
2 types of anaerobic systems
ATP PC and GLYCOLYSIS
anaerobic vs aerobic
anaerobic - no oxygen (remember the n means no air)
ATP PC system
high intensity, short duration, 10-15 seconds
ex. all out sprint
FIRST system used at the onset of all exercises
GLYCOLYSIS
provides energy longer than atp pc but not that long, 30-50 seconds; used in most 8-12rep workouts
this system contains aerobic glycolysis, krebs cycle and electron transport chain (ETC)
oxidative system (aerobic system) - not primary energy system used at onset of exercise, but used after transitioning to sustained exercise
energy system used at rest
oxidative system
what system can produce energy for indefinite time periods
oxidative system
what system used FAT as the main source?
oxidative system
When a person jogs for 30 minutes, what system is primarily used?
OXIDATIVE - prior is oxidative, then atp-pc for 10-15 seconds, then glycolyic for 50 seconds than oxidative for duration
EPOC
excess post oxygen consumption - increase in metabolic performance from performing anaerobic exrecise
which produces greater fat loss, HIIT or low intensity?
HIIT - while the lower intensity is in the fat burning zone, the HIIT burns more overall fat due to higher total caloric expenditure