MODEL RELEASED. Woman using an exercise ball in a gym. These balls are used when exercising because their inherent instability causes more of the body's muscles to respond to maintain balance,thus providing a better work-out | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Aj Photo |
Bildgröße: | 3425 px × 5116 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |