Final answer:
The option not included in the four components of cardiorespiratory training is weight. Cardiorespiratory components focus on type, frequency, time, and intensity of the workout. The primary training types are aerobic, which uses oxygen for energy during low to moderate intensity for longer periods, and anaerobic for short, intense bursts.
Step-by-step explanation:
The four components of cardiorespiratory training are type, frequency, time, and intensity. These components are essential for designing an effective cardiorespiratory fitness program. The option that does not belong in this list is weight, as it does not directly relate to the aerobic or anaerobic cardiovascular exercises that utilize oxygen to meet energy demands during extended periods of light-to-moderate intensity activity.
Aerobic exercises like running, cycling, and swimming, for example, focus on improving cardiovascular endurance and involve a high percentage of slow-twitch muscle fibers. These fibers are known for consuming large amounts of oxygen to sustain exercise over a long duration. In contrast, anaerobic exercises such as sprints or other short, intense physical activities utilize fast-twitch muscle fibers and are meant to be performed in short bursts without relying on oxygen as the primary energy source.