PHTH 514 EXAM 1 LATEST UPDATED 2025 WITH COMPLETE SOLUTIONS
A calculated approximation of the total amount of energy (calories) a
person burns in a given period is defined as?
Estimation of energy expenditure
Exercise efficiency often equals the...
Ratio of work output to energy imput
A more efficient individual uses less energy to perform the same amount of
work is defined as?
Exercise efficiency
What are 3 factors that can influence and impact the exercise efficiency
Exercise intensity, Speed of movement & Muscle fiber type
T/F: With exercise intensity, efficiency decreases at high exercise
intensities because of the higher energy cost of very heavy exercise
True
Speed of movement is defined as...
Deviation away from optimum speed reduces efficiency
Msucle fibers are classified as...
Efficient ATP Slow muscle fibers (Type-1) and Fast muscle fibers (Type-2)
Homeostasis is defined as...
Maintenance of a constant and "Normal" internal environment (i.e, HR, Body core
temp, Arterial BP)
Steady State is defined as...
Physiological varaible is unchanging, but normally "Normal" resting value (i.e, HR
during submax exercise, Body core temp during prolonged submax exercises)
2 Control systems of the body consits of...
Intracellular control systems & Organ systems
Intracellular control systems are influenced by...
Protein breakdown and synthesis, Energy production & Maintenance of stored
nutrients
,Define Exercise Physiology
A branch of physiology that investigates how a single or repeated bouts of
exercise impact cells, tissues and organs system o the body
What are factors that contribute to Cardiovascular Disease?
Poor diet, Lack of regular exercise, Tobacco smoking, Alchol, Druge abuse and
High stress
CDC blames heart disease causes in 1 to 4 deats in the U.S which
contributes to ____ deaths/year and ____ individulas with MI
610,000 and 735,000
A slow gradual narrowing of the cornory arteries could be a cause of?
Angina
F. Mason Sones developed the technique for producing...
High quality diagnostic images of the coronary arteries
Basic research can be classified as a...
Systemic study of fundamental topic
Applied research can be classified as a...
Study designed to solve practical problems
Cardiac rehab programs focuses on the...
Inclusion of exercise training for individuals with CVD
Cardiac rehab is a treatment program for patients who suffered...
A heart attack, Underwent heart surgery or experince some form of heart disease
Research demonstrating that an exercise based cardiac rehab program
may result in (3)....
A reduction on all-cause CVD mortality, Decreased hospital re-admissions and
Improved quality of life
Exercise prescriptions focuses on what 3 perspectives areas?
Cardiorespiratory, Strength/Resistance and Flexibility
Ergometry is defined as a...
Measurment of work output
, Some Ergrometer devices used to measure work can be...
Bench press erogmeter, Cycle ergometer, Arm ergometer, Treadmill, Etc.
Direct calorimetry is the measurment of...
Energy expenditure via measurment of body heat production
Indirect calorimetry is the evaluation of...
Energy expenditure by measuring oxygen consumption
Open-circuit spirometry (Metabolic cart) consits of various equipment
practices such as...
Computar, Mixing chamber (collection of expirated gas), Gas analyzers (O2 & CO2),
Pneumotach (measures gas volume) and Two-way breathing mask
Organ systems are influenced by...
Pulmonary and Circulatory systems via replenishing O2 and removing CO2
Series of interconnected components that maintain a physical or chemical
parameter at a near constant value is defined as?
Biological control systems
3 Components that influence Biological control systems are?
Sensory or Receptors (detects change), Control center (asses input and
initiates response) & Effector (changes in environment back to normal)
Response reverses the inital disturbance in homeostasis is defined as?
Negetive response system
T/F: Most of the body's control systems work via negative feedback?
True
T/F: Limited number of the body's control systems use positive feedback?
True
Biological responses increases...
The original stimulus
Degree to which a control system maintains homeostasis Is known as?
Gain of control system
T/F: A system with large gain is more capable of maintaining homeostasis
than system with low gain?
A calculated approximation of the total amount of energy (calories) a
person burns in a given period is defined as?
Estimation of energy expenditure
Exercise efficiency often equals the...
Ratio of work output to energy imput
A more efficient individual uses less energy to perform the same amount of
work is defined as?
Exercise efficiency
What are 3 factors that can influence and impact the exercise efficiency
Exercise intensity, Speed of movement & Muscle fiber type
T/F: With exercise intensity, efficiency decreases at high exercise
intensities because of the higher energy cost of very heavy exercise
True
Speed of movement is defined as...
Deviation away from optimum speed reduces efficiency
Msucle fibers are classified as...
Efficient ATP Slow muscle fibers (Type-1) and Fast muscle fibers (Type-2)
Homeostasis is defined as...
Maintenance of a constant and "Normal" internal environment (i.e, HR, Body core
temp, Arterial BP)
Steady State is defined as...
Physiological varaible is unchanging, but normally "Normal" resting value (i.e, HR
during submax exercise, Body core temp during prolonged submax exercises)
2 Control systems of the body consits of...
Intracellular control systems & Organ systems
Intracellular control systems are influenced by...
Protein breakdown and synthesis, Energy production & Maintenance of stored
nutrients
,Define Exercise Physiology
A branch of physiology that investigates how a single or repeated bouts of
exercise impact cells, tissues and organs system o the body
What are factors that contribute to Cardiovascular Disease?
Poor diet, Lack of regular exercise, Tobacco smoking, Alchol, Druge abuse and
High stress
CDC blames heart disease causes in 1 to 4 deats in the U.S which
contributes to ____ deaths/year and ____ individulas with MI
610,000 and 735,000
A slow gradual narrowing of the cornory arteries could be a cause of?
Angina
F. Mason Sones developed the technique for producing...
High quality diagnostic images of the coronary arteries
Basic research can be classified as a...
Systemic study of fundamental topic
Applied research can be classified as a...
Study designed to solve practical problems
Cardiac rehab programs focuses on the...
Inclusion of exercise training for individuals with CVD
Cardiac rehab is a treatment program for patients who suffered...
A heart attack, Underwent heart surgery or experince some form of heart disease
Research demonstrating that an exercise based cardiac rehab program
may result in (3)....
A reduction on all-cause CVD mortality, Decreased hospital re-admissions and
Improved quality of life
Exercise prescriptions focuses on what 3 perspectives areas?
Cardiorespiratory, Strength/Resistance and Flexibility
Ergometry is defined as a...
Measurment of work output
, Some Ergrometer devices used to measure work can be...
Bench press erogmeter, Cycle ergometer, Arm ergometer, Treadmill, Etc.
Direct calorimetry is the measurment of...
Energy expenditure via measurment of body heat production
Indirect calorimetry is the evaluation of...
Energy expenditure by measuring oxygen consumption
Open-circuit spirometry (Metabolic cart) consits of various equipment
practices such as...
Computar, Mixing chamber (collection of expirated gas), Gas analyzers (O2 & CO2),
Pneumotach (measures gas volume) and Two-way breathing mask
Organ systems are influenced by...
Pulmonary and Circulatory systems via replenishing O2 and removing CO2
Series of interconnected components that maintain a physical or chemical
parameter at a near constant value is defined as?
Biological control systems
3 Components that influence Biological control systems are?
Sensory or Receptors (detects change), Control center (asses input and
initiates response) & Effector (changes in environment back to normal)
Response reverses the inital disturbance in homeostasis is defined as?
Negetive response system
T/F: Most of the body's control systems work via negative feedback?
True
T/F: Limited number of the body's control systems use positive feedback?
True
Biological responses increases...
The original stimulus
Degree to which a control system maintains homeostasis Is known as?
Gain of control system
T/F: A system with large gain is more capable of maintaining homeostasis
than system with low gain?
