Keiser began its history of visionary sports science leadership over 40 years ago, rejecting the constraints of traditional resistance methods and focusing on the biomechanics and needs of the user. We relentlessly pursue solutions that push the limits of fitness science. Better science. Better machines. Better results. Better training.

More than 80% of the top professional sports teams in the world now train on Keiser machines, including every baseball team in the majors, the soccer champions of nine countries, several American football champions and countless Olympians. They’re joined by everyone from NASA to Navy Seals, medical experts and rehabilitation specialists, and major gyms like LA Fitness.