interval (noun)

   stamina (noun)

   punching bag (noun)

   push-up (noun)

   punchbag (noun)

   jog (noun)

   squat thrust (noun)

   circuit training (noun)

   to walk (verb)

   aerobics (noun)

   sit-up (noun)

   to stretch (verb)

   fitness tracker (noun)

   to jog (verb)

   warm-up (noun)

   pump iron (idiom)

   lunge (noun)

   physical education (noun)

   athletic (adjective)

   to train (verb)

   health spa (noun)

   athlete (noun)

   foam roller (noun)

   interval training (noun)

   work out (phrasal verb )

   walker (noun)

   kettlebell (noun)

   personal trainer (noun)

   strenuous (adjective)

   to exercise (verb)

   high-intensity training (noun)

   power walking (noun)

   short-winded (adjective)

   activity tracker (noun)

   to sweat (verb)

   to tone (verb)

   walking (noun)

   spinning (noun)

   step (noun)

   mountain climber (noun)

   circuit (noun)

   jogger (noun)

   treadmill (noun)

   health club (noun)

   get yourself into shape (idiom)

   keep-fit (noun)

   burn fat (idiom)

   cross trainer (noun)

   cardio (noun)

   cross-training (noun)

   to run (verb)

   exercise bike (noun)

   gym (noun)

   regimen (noun)

   plank (noun)

   fitness centre (noun)