Physiology 1
Which energy system would be predominantly used during a 800 meter sprint
Glycolytic
Which molecule is required for myosin to detach from actin
ATP
What is the main advantage of HIIT training?
Time efficiency
1 MET represents an oxygen consumption of how many mL/kg*min?
3.5
What vascular structure is the site of oxygen diffusion
Capillaries
Mitochondria
The highest intensity you can sustain while keeping lactate concentrations stable is known as
Maximal Lactate Stead State (MLSS)
What is the minimum recommended target MET-hours for general health benefits
7.5 - 15 MET-hours
This has been associated with increased injury rates in runners
An increase in the distance of the longest run >10% above the previous longest run in the past 30 days
For which outcomes does there seem to actually be an interference effect of concurrent training (cardio + lifting)?
Power
Glycolysis utilizes which two substrates for energy production
Glucose and glycogen
What is the role of arteries?
Carries blood away from the heart
What is the benefit of using reserve metrics over absolute metrics for endurance presicribtion
Accounts for baseline (resting) value
More accurately reflects the "felt" difficulty
Increasing volume while decreasing intensity as you approach competition would describe what type of periodization?
Traditional
What molecule is involved in signaling that increases muscle mitochondrial content in response to endurance exercise and also inhibits mTORC1?
AMPK
What is the full equation for VO2?
HR * SV * a-vO2diff
What is required to verify a "true" VO2max without retesting?
Observing a plateau in oxygen uptake
Endurance training would cause the lactate threshold to shift in which direction on a lactate/speed graph?
Right
This type of distribution approach involves performing 80% of training below threshold 1 and 20% above threshold 2
Polarized training
Which renowned Auburn professor is known for his research on lactate metabolism which help shift how we view lactate in the context of exercise?
What is the full reaction of the ATP-PCr system, including the enzyme that facilitates the conversion?
ADP + PCr -> ATP + Cr
Creatine Kinase
What is the correct order in which blood is pumped through the heart and to/from the lungs + systemic circulation
Systemic circulation -> RA -> RV -> lungs -> LA -> LV -> systemic circulation
What 4 factors determine endurance performance?
VO2max, fraction sustained (MLSS/LT2), economy, physiological resilience
How would you describe the shape of the relationship between mortality risk and exercise/physical activity
Curvilinear - diminishing returns
Who was the first person to run a marathon in under 2 hours as part of Nike's "Breaking 2" project?
Eliud Kipchoge