Une jeune femme souriante faisant de l'aérobic sur une marche d'aérobic sur un fond blanc. - Photo & image de stock

Stepping up her fitness levels. A smiling young woman doing aerobics on an aerobic step against a white background

Stepping towards better fitness. A smiling young woman doing aerobics on an aerobic step against a white background

Taking steps to improve her fitness. A smiling young woman doing aerobics on an aerobic step against a white background

Leaping up in pursuit of fitness. A smiling young woman doing aerobics on an aerobic step against a white background

A smiling young woman doing aerobics on an aerobic step against a white background.

She follows a strict fitness plan. An attractive young woman working out with the aid of a bosu-ball

A smiling young woman doing aerobics on an aerobic step against a white background.

Reaching her fitness goals. A smiling young woman doing aerobics on an aerobic step against a white background

Keeping her balance. A pretty young woman balancing on her rolled up exercise mat - isolated

A smiling young woman doing aerobics on an aerobic step against a white background.

Getting into her workout. A smiling young woman doing aerobics on an aerobic step against a white background

Her daily workout routine. A beautiful young woman standing on a bosu-ball while working out

Her workout is effecient and effective. An attractive young woman working out with the aid of a bosu-ball

She enjoys a full-body workout. A beautiful young woman working out on an upside-down bosu-ball

A pretty young woman exercising on a balance board while isolated on a white background.

A young woman standing on a bosu-ball while working out.

Fitness is fun. Portrait of an attractive young woman using a bosu-ball for an upper body workout

A pretty young blond standing on a balance board while isolated on white.

Working out using the proper techniques. An attractive young woman working her core muscles by balancing on a bosu-ball

Work hard - stay fit. A young woman using a bosu ball for a workout

Her daily workout. A beautiful young woman standing on a bosu-ball while working out

A smiling young woman doing aerobics on an aerobic step against a white background - K-step.

Crunches with an exercise ball. A young woman doing sit-ups on an exercise ball while isolated on a white background