Met ondersteuning. Jonge knappe bebaarde man doen ligsteunen met hulp van fitness bal. - Stockfoto’s en -afbeeldingen

Doing well. Concentrated bearded guy doing press-ups with help of special fitness ball while his trainer counting time.

Never back down. Handsome bearded guy doing push-ups with personal coach by holding his arms on special fitness ball.

With straight back. Youthful handsome bearded guy doing push-ups with help of special fitness ball and personal trainer.

Always ready. Youthful bearded man push-ups by holding his arms on special fitness ball while his trainer counting.

Working actively. Young handsome bearded guy throwing back the ball to his trainer while training abdomen.

Ready to catch. Youthful bearded man training tummy muscles by throwing special fitness ball to his personal trainer.

Throwing back. Young handsome bearded man training abdomen while throwing ball to with his trainer.

Trainer supporting sportsman doing plank on yoga blocks in gym

Professional athlete jumping up with knees bent during plyometric training at gym

Serious purposeful young boxer standing in fighting stance during gym training session

Smiling boxer delivering a finishing blow to his hurting sparring partner in the corner of a ring

Back view of sporty guy working out on plyo box at gym

Serious determined strong muscular man in boxing gloves shadow-boxing before gym mirror

Serious focused shirtless muscular man performing medicine ball push-ups on gym floor

Serious focused muscular young man in boxing gloves practicing uppercut punches during workout

Determined strong young man doing single-arm push-ups with exercise ball at gym