Close up of woman doing back squat backed up by her personal instructor in the gym

gym exercise equipment sports training sports clothing muscular contraction squatting position training exercising gymnastics body building sport instructor sports equipment sportsperson sports looking shape strength muscle healthy lifestyle abdominal muscle human body women equipment slim men back indoors motion adult heathcare watching control muscular build people human back supported coach two people improvement expertise guidance 4k teacher heavy support lifestyles long hair monitoring equipment computer monitor success push button technology personal accessory medicine adults only listening to heartbeat ukraine game controller control panel gamepad