Uśmiechnięty młody wysportowany mężczyzna wykonujący siedzący biceps curl na urządzeniu treningowym - Zdjęcie stockowe & obraz

Side view of calm muscular man working out on seated bicep curl machine

Side view of serious focused young muscular sportsman performing seated bicep curl

Serene muscular young male athlete doing seated bicep curl exercise at gym

Side view of serious focused male athlete working out using gym equipment

Sports man in the gym. A man performs exercises. Guy in a gray t-shirt

Caucasian strong fitness instructor doing abs workout and building athletic body at well-equipped gymnasium

Serious focused Caucasian bodybuilder sitting on weight bench and doing concentration curl

Strong young Caucasian man working out on squat machine in fitness center

Strong muscles. Positive fit man standing with dumbbells while lifting them up

Side view of bodybuilder working out on weight machine in exercise room

Caucasian weightlifter seated at gym before weight storage rack holding dumbbells placed on his thighs

Strong muscular Caucasian male bodybuilder doing seated knee extension on weight machine

Sport in life. Handsome sportive man looking at you while lifting a dumbbell in the gym

Calm handsome man with towel over neck holding water bottle and sitting on piece of gym equipment

Build up your muscles. Good looking positive professional sportsman doing a physical exercise and smiling while taking pleasure in the workout.

Body development. Serious young man focusing on his training while developing his muscular body