The answer is kettlebell. Kettlebells<span> aren't anything new, but their popularity in fitness circles continues to rise—and with good reason. When used correctly, </span>kettlebells<span> are extremely effective </span>training<span> tools for providing total-body strength and conditioning. The problem is that </span>kettlebells<span> are often used improperly.</span>
Communication or dealing w individual groups
It is swimming because you work your every muscle in your body it is the best sport
Answer:
You should increase the weight until no more than 20 repetitions and three sets are possible.
Explanation: