fitness ball
noun[C]
uk/ˈfɪt.nəs ˌbɔːl/us/ˈfɪt.nəs ˌbɑːl/(alsobalance ball,exercise ball,stability ball,Swiss ball,yoga ball)alargeballforsittingorlyingon whileexercising:
健身球Lie with themiddleofyourback on afitnessball,yourfeeton thefloor,yourkneesbent.仰卧在健身球上,双脚着地,膝盖弯曲。
Fitnessballstargetthecoremuscles, and can be used toworkthearmsandlegsas well.健身球用于核心肌肉部位的训练,也可用于锻炼手臂和腿部。

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- I use afitnessballtokeepmy back inshape.
- Rather thaninvestin alarge,expensivegymmachine,considerbuyingseveralsmall,economicalpiecessuch ashandweights,medicineballsandfitnessballs.
- Sit on afitnessballand,holdinga 4kgweight,raiseyourarmstraightaboveyourhead.
- There werepicturesof a woman doingvariousexercisesusing one of thosegiantfitnessballs.
Exercising & training
- aerial yoga
- aerobic
- Anti-Gravity yoga
- aquacise
- aquarobics
- bench
- jog
- jog trot
- jumping jack
- Kegel exercise
- kettlebell
- loosen
- resistance training
- Spinning
- star jump
- sweat
- Swiss ball
- tai chi
- taper
- triceps dip