A bodybuilder looks at his mobile phone at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
A woman exercises on a fitness bike with virtual reality glasses at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
A woman looks at a smart mask system for metabolic and performance analysis at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
A woman wears an aqua bag for work out on her shoulders at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
A man lies in a body rejuvenator tube at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
A woman trying out a system for lymphatic drainage and anti aging collagen stimulation at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany...
AP Photo/Martin Meissner
Female bodybuilder Natalyia Kuznetsova stands on high heels between visitors at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
Women perform aqua fitness at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
A bodybuilder receives a body painting at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
Visitors look at a tall bodybuilder in the fair halls at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
Bodybuilder Jens wears a shirt reading 'The Beast' when he talks to a woman at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.
AP Photo/Martin Meissner
Female bodybuilder Natalyia Kuznetsova shows her muscles at the world's largest fitness trade show FIBO (Fitness and Bodybuilding) in Cologne, Germany.