Also called swayback, the spine of a person with lordosis curves significantly inward at the lower back. Kyphosis. Kyphosis is characterized by an abnormally rounded upper back (more than 50 degrees of curvature). Scoliosis. A person with scoliosis has a sideways curve to their spine.
NASCAR Nextel cup race cars are very heavy and have about 750 horsepower. Other specifications include: Busch series race cars are similar to the Nextel cup cars. They have less horsepower due to the carburetor. They also have a shorter wheelbase and spoiler.
A 6ft-tall Olympic 100 meter sprinter weighing 90kg (200lbs) may have the same BMI (26) as a couch potato of the same height and weight. A BMI calculation would class both of them as overweight. That calculation is probably right for the sedentary couch potato, but not for the athlete.