Chapter 8 Flashcards
considered to be the benchmark of measuring body composition
Hydrostatic weighing
This body composition assessment technique is the most common type of test and it involves measuring the total amount of impedance, or resistance, to electrical current flow as it passes through the body. Impedance of electrical current is greatest in fat tissue, while the fat free tissues contain 70-75% water, thus allowing an easier flow.
Bioelectrical impedance
his is the volume of air remaining in the lungs after a maximal expiration
Residual Volume:
The point of transition between predominately aerobic energy production to anaerobic energy production. This involves the recruitment of fast-twitch muscle fibers and identified via gas exchange during exercise testing.
Ventilatory threshold:
The act of taking in air to the lungs, also known as inhaling.
Inspiration
The act of expelling air from the lungs, also known as exhaling.
Expiration
This is defined as the point in time during high intensity exercise that the body’s production of lactic acid exceeds the body’s ability to get rid of it. This point shows where oxygen begins to be inefficient for the body’s energy demands.
Onset of blood lactate accumulation
The maximal amount of weight that a person can lift at one time.
Absolute strength
The ratio of weight lifted compared to the actual weight of the person lifting. It can be used to compare the strength of different individuals against eachother
Relative Strength
The amount of weight that can be moved through the range of motion for one time before the muscle is fatigued and cannot go for a second repetition.
One-repetition maximum
BMI - Underweight
Less than 18.5
BMI - Normal weight
18.5 - 24.9
BMI - Overweight
25 - 29.9
BMI - Grade 1 Obesity
30 - 34.9
BMI - Grade 2 Obesity
25 - 39.9
