What is the body's preferred and most readily available source of energy for prolonged, moderate-intensity exercise?
Which hormone, often released in response to stress, can hinder muscle growth and increase fat storage if consistently elevated?
What does the FITT principle stand for, an important guideline for exercise program design?
What common metric is calculated from a person's weight and height, often used as a general indicator of body fatness, despite its limitations?
Which type of stretching is generally recommended to be performed *after* a workout to improve or maintain flexibility, involving holding a stretched position for a period of time?
Exercise that is performed at an intensity level where the body can meet its oxygen demands, allowing for sustained activity, is known as what?
Which specific type of muscle contraction occurs when a muscle lengthens under tension, often causing greater muscle damage and soreness?
What is the physiological term for the maximum rate at which an individual can consume, transport, and utilize oxygen during maximal exercise?
What is the smallest contractile unit of a muscle fiber, composed of actin and myosin filaments, responsible for muscle contraction?
Which type of muscle fiber is characterized by its high mitochondrial density, rich blood supply, and high resistance to fatigue, making it crucial for endurance activities?