Question

Slow twitch fibers have a ______ oxidative capacity and ________ glycogen content.

Answer 1

Slow-twitch muscle fibers have a high oxidative capacity and low glycogen content. They are used for endurance activities.

Step-by-step explanation:

Slow-twitch muscle fibers, also known as type I fibers, have a high oxidative capacity as they contain a large number of mitochondria. They also have a low glycogen content compared to fast-twitch fibers. Slow-twitch fibers are dense with capillaries and rich in myoglobin, allowing them to carry more oxygen and sustain aerobic activities for longer periods. These fibers are primarily used in endurance events such as distance running or cycling.