83% of the total number of fibers examined in the vastus lateralis and nearly 61% of the gastrocnemius were comprised of fast-twitch fibers. Are you surprised by the results? Why? What are the key...

Extracted text: 83% of the total number of fibers examined in the vastus lateralis and nearly 61% of the gastrocnemius were comprised of fast-twitch fibers. Are you surprised by the results? Why? What are the key characteristics of fast-twitch muscle fibers? (State THREE characteristics including myoglobin content and mitochondrial volume density)