Football player warming up on a marked grass court, as he takes it slowly from his feet to his head.

Close-up of a determined athlete intensely training on a sleek stationary bike, against a strikingly stark black background.

A woman's face bears the unmistakable signs of determined effort as she vigorously trains on the stationary bike over a black background.

A determined and athletic young woman is energetically exercising on a stationary bike, showcasing her commitment to fitness and well-being.

In a vibrant setting, a dynamic couple of young athletes immerse themselves in rigorous training on the climbing wall.

Skillful young gymnast of great talent, doing complicated pirouettes in a dark gym with a light from a searchlight.

Agile and talented young gymnast in a leotard, doing complicated pirouettes in a dark empty gym under the bright light of a spotlight.

Talented and skilful gymnast in a bright colorful leotard, performing a complex pirouette on a balance beam in a gymnastics gym.

Couple of cyclist man and woman running slowly through a forest on a sunny day, on a dirt road and rocks among many trees.