BODY COMPOSITION
Which component accounts for the largest percentage of fat-free mass?
Skeletal muscle
What joint action occurs at the elbow during a biceps curl upward phase?
Flexion
What is the volume of air inhaled or exhaled in one normal breath?
Tidal volume
What directional term means “away from the midline”?
Lateral
What body composition model divides the body into fat mass, water, protein, and mineral?
Four-compartment model
What term describes resistance to angular motion?
Moment of inertia
What gas primarily stimulates ventilation during exercise?
Carbon dioxide (CO₂)
What term means “toward the head”?
Superior
What does “android fat distribution” refer to?
Central/abdominal fat
Which plane involves rotational movements?
Transverse plane
What is the term for total air exhaled after a maximal inhale?
Vital capacity
Which joint type is the shoulder?
Ball-and-socket
What is the minimal number of skinfold sites used in common field testing?
Three
What increases when you lengthen the moment arm?
Torque
What happens to breathing rate as exercise intensity increases?
Increases
What movement occurs when you turn your palm upward?
Supination
Which type of fat is stored around internal organs?
Visceral fat
In a push-up, what type of lever is the body acting as?
Second-class lever
What limits oxygen diffusion at very high intensities in trained athletes?
Diffusion limitation
Which muscle is primarily responsible for knee extension?
Quadriceps