Generally speaking, it is easier to exercise muscles with free weights than with instruments. Because muscles respond better to weight.

When lifting barbells, not only the muscles necessary for lifting weights are used, but also other muscles are involved in this action. Muscles and joints together allow you to lift the barbell smoothly. When you train with other equipment, you don't need muscle balance, either.

You don't need muscle adaptability. The exercise you do is just a special kind of training. As a result, some muscles are out of proportion to others. Therefore, when we exercise muscles, it is more appropriate to adjust the weight freely.

Advantages of free weight: Dumbbells and barbells are effective for developing smaller synergistic muscles and stabilizing muscles. From the biomechanical point of view, free weight training (that is, dumbbells and barbells) is very consistent with the neurological model of motor skills. Because of its sense of joint movement, similar lever and full body mobilization. The advantages of barbells and dumbbells are diverse usage, low cost, small floor space and fast and deep lifting ability. In other aspects, including increasing muscle volume, increasing elasticity, losing weight and adjusting muscle color, it can be effectively achieved by using a free weight meter.