Urban sports - woman running for better fitness in the city park on a cloudy summer day
Asian Chinese man having fitness training or workout in gym doing sport to build up muscle on a weight machine
several wind mills for a clean energy and renewable against the nuclear power and its radioactive pollution
Group of three people in colorful cloths in a gym having a break from their fitness gymnastics exercise sitting on their steppers
Urban sports - Woman running for better fitness in the city park on a cloudy summer day
Asian Chinese Woman and personal fitness trainer in gym discussing training schedule and goals for workout
Running on treadmill in gym or fitness club - two women exercising to gain more fitness
Chinese men having fitness training or workout in gym doing sport to build up muscle on a weight machine
Woman and man in gym - only legs to be seen - exercising running on the treadmill to gain more fitness; motion blur in limbs for dynamic
People, man and women, exercising doing sit-ups in gym or fitness club for better fitness
Very fit couple in a gym exercising with tube equipment doing power gymnastics
People - man and woman - exercising in a gym on an elliptical trainer for more fitness