Free weight training refers to doing workout exercises with freedom of movement and without a pre-set and controlled circuit, as occurs with workout machines. This category includes dumbbells, kettlebells, medicine balls, etc.
These workouts enable greater freedom of movement, which will make the muscle groups you want to focus on work harder, since making more natural movements works more parts of the muscles than using a machine. In addition, it is a good way of working on balance, sharpening concentration and mental control.
A few years ago, cross training emerged as part of free weight training, and it is a discipline that is gaining new followers each day. This training is based on a type of functional exercises, which are very varied and high intensity, perfect for full physical fitness and for gaining strength.