Final answer:
True, larger muscle groups can achieve a higher VO2 max due to their increased capacity for oxygen utilization. There is also variation in the proportion of muscle fiber types among different individuals, which influences their performance in various physical activities. Moreover, sprinting is considered anaerobic exercise, not relying on the oxygen-centered aerobic energy system.
Step-by-step explanation:
True. A higher VO2 max, which indicates an individual's maximum capacity for oxygen consumption during exercise, will be achieved when using larger muscle groups. Larger muscle groups can consume more oxygen because they contain more capillaries, mitochondria, and myoglobin, which are crucial for transporting and using oxygen. This is why exercises that engage large muscle groups, such as running or cycling, are generally more efficient at improving VO2 max than exercises that involve smaller muscle groups.
When discussing muscle fiber types, it is also false that all people have the same proportion of slow-twitch to fast-twitch muscle fibers. There is great variation between individuals, which affects their abilities for different physical activities, such as strength and endurance exercises. Athletes who excel in endurance sports tend to have a higher proportion of slow-twitch fibers, while those who perform better in power activities usually have more fast-twitch fibers.
Sprinting is an anaerobic exercise because it involves short bursts of high-intensity activity that do not rely primarily on the aerobic energy system. Instead, sprinting relies on the anaerobic system, which does not require oxygen to produce energy.