But the entire process is not rocket science. Point the rocket straight up and it tends to go further. Then again, maybe it is. You haven't talked to your type B muscle fibers in weeks. To be fit is not to be athletic.
Fitness results from hard work.
Athleticism is inherited. Look at Warren Sapp and Curt Shilliing. Great athletes who perform at the highest levels but would never take their shirts off in a gym. Wayne Gretzky could only bench press 130 pounds but he was the greatest ever quick twitch visionary processor of real time stimuli. Plus his wife is a major babe and neither of them ever heard on Chondroitin or Glucosamine.