Bioenergetics
True or False: ATP storage is unlimited and infinite
What is False
During exercise, the body will always attempt to meet blood flow needs of the muscle; however, this mechanism cannot be compromised
What is blood pressure
High [Glucose], [ADP], and [AMP] are all stimuli to activate which metabolic pathway?
What is Glycolysis.
An increase in exercise intensity and/or duration will induce this change in hormonal concentration
What is an increase
Characteristics such as (1) highly vascularized, (2) highly fatigue resistant, (3) smaller and slower motor neurons, and (4) high oxidative capacity are all descriptions of which muscle fiber type
What is Type I
This technique uses differential measurements in water temperature to estimate total energy expenditure
What is direct calorimetry
The exercise-induced increase in heart rate is initially regulated by this autonomic nervous system
What is the parasympathetic nervous system
This molecule has been referred to as the metabolic crossroad between carbohydrate, lipid, and protein metabolism.
What is Acetyl CoA
Cortisol and Aldosterone are secreted by this endocrine gland
What is the Adrenal Cortex
Musculoskeletal force production is increased when muscle contractions are performed at this relative velocity
What is slow or slower
This substrate reportedly yields 4.1 kcal/g of energy; however, this output may vary due to its unique chemical structure
What is Protein
Upon exercise initiation, immediate increases in pulmonary ventilation are initially regulated by this bodily system
Pyruvate accumulation has fallen below a certain threshold, how will the rate-limiting enzyme of glycolysis respond?
What is increase in activity
This type of hormone is structurally derived from cholesterol and lipid soluble, allowing for its direct interaction with its intracellular receptor
What is a steroid hormone
Despite its significant contributions to the winding filament hypothesis, this protein is less commonly known as the 3rd myofilament within the sarcomere
What is Titin
The consideration of this individual factor could enhance the accuracy of walking/running prediction equations
What is height
As End Diastolic Volume increases, how does Stroke Volume respond?
What is it increases
Glycolysis results in the production of 33 ATP when Glycogen is converted to Glucose-6-Phosphate as a result of this enzyme's activation.
What is Glycogen Phosphorylase
During prolonged exercise performance, this hormone contributes to the maintenance of blood glucose levels by increasing free fatty acid mobilization
What is the Growth Hormone
As we become more inactive, evidence suggests our muscle fibers tend to transition towards this type of muscle fiber characteristic
What is Type IIX
What exercise factor has the greatest effect on the rate of ATP use?
What is exercise intensity.
If an individual has a resting Cardiac Output of 4.5 L/min and a HR of 75 bpm, what is their Stroke Volume?
What is 60mL
Glycolysis is to Phosphofructokinase as Krebs Cycle is to what rate-limiting enzyme?
What is Isocitrate Dehydrogenase.
This describes an increase in receptor upregulation, allowing for the maintenance of insulin functionality at lower concentrations as observed during prolonged aerobic exercise performance
What is insulin sensitivity
Maximal musculoskeletal tension development is reached within this range of sarcomeric lengths, inducing greater mechanical advantage and maximal potential cross-bridge interactions for force generation
What is between 2.0 and 2.25 um