Shared Flashcard Set

Details

ch 11
exam 1
24
Health Care
Undergraduate 2
03/05/2011

Additional Health Care Flashcards

 


 

Cards

Term

Physiologist of physical activity

Definition
study short-term changes in how the body functions during exercise, and the long-term changes due to training
Term

Goals of Exercise Physiology

Definition
(1) to understand how to enhance physical performance; (2) to understand how to improve physical function in particular environments such as high temperatures and high altitude; (3) to understand how physical activity and exercise improve health and fitness; (4) to understand how exercise can be used in treating and preventing disease and alleviating symptoms of disease; (5) to understand adaptations in human anatomy and physiology in response to physical activity
Term

Maximal Oxygen Uptake (VO2 Max)

Definition
The highest rate of oxygen uptake during heavy dynamic exercise
Term
Underwater Weighing
Definition
—The procedure in which a person’s body weight is measured while completely underwater to determine their body volume
Term
Myofibrils—
Definition
The part of the muscle fiber that contains the contractile elements
Term

Anaerobic

Definition
The absence of oxygen
Term
Aerobic
Definition
—In the presence of oxygen
Term

Energy Sources

Definition
ATP-Phosphocreatine System, Anaerobic Glycolytic System, Aerobic System
Term
Strength
Definition
The maximal amount of force exerted by a muscle group
Term

Endurance

Definition
The ability to sustain physical activity for prolonged periods
Term

Isometric

Definition
an exercise in which tension is produced by the muscle without any change in length
Term

Isotonic

Definition
an exercise in which the muscle changes length while maintain a constant tension
Term

Isokinetic

Definition
—an exercise in which the muscle changes length at a constant rate of velocity
Term

Hypertrophy

Definition
an increase in muscle mass because of the enlargement of the muscle fiber
Term

Hyperplasia

Definition
an increase in muscle mass because of the splitting of muscle fiber
Term

Cardiac Output

Definition
the amount of blood pumped out of one side of the heart per minute
Term

Stroke Volume

Definition
the amount of blood pumped out of one side of the heart per beat
Term

Ventilation

Definition
the process in which gases are exchanged between the atmosphere and the alveoli of the lungs
Term
Tidal Volume
Definition
the amount of air inhaled or exhaled per breath
Term

Ventilatory Threshold

Definition
the point during a graded exercise test at which ventilation begins increasing at a faster rate than VO2 does
Term

Metabolic Rate

Definition
rate at which the body uses energy
Term
Plasma Volume
Definition
volume of extra cellular fluid found in the blood
Term

Hemoglobin

Definition
an iron-containing protein found inside red blood cells that carries most of the oxygen in the blood
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