The best way to build a stronger body is with resistance training or the more well known one is the use of weights. Definition of weight from Wikipedia is, typically a measurement of the gravitational force acting on an object or an object’s mass.
In sports, weights is objects of known mass used in weightlifting. This can be with free weights such as dumbbells and barbells, weight machines, or a combination of the two.
Many purists believe that the only way to do weight training correctly is with free weights as they bring into play all the other muscles required to control and balance the movement of the weights. The benefits of weight training typically increase muscle, tendon and ligament strength, bone density, flexibility, tone, metabolic rate, and postural support.
It is correct that more muscles are required to lift free weights due to the fact that more control is required but the development of weight machines in recent years has been such that they can also offer benefits that free weights cannot give.
By eliminating the factor of control from specific movements it is possible to lift heavier weights and this in turn can stimulate more growth in the muscle. But we must always remember to maintain proper form, ensure warm up is done before and after, breathing must be in the correct way, and lastly always rehydrate. When we take into consideration all these factors, we can avoid pain.
In addition to this is the fact that many machines are designed to maintain pressure on the muscles throughout the full range of the movement.
Free weights, on the other hand, generally have the least effect on muscle growth at the top and bottom of any movement.
To explain this better we will use the example of the arm curl where a barbell is curled up from a position resting against the thighs to the chest using the bicep muscles.
When the barbell is at the top or the bottom of the movement there is no resistance on the muscle where as with a machine with the correct design elements there can be maximum tension even at those parts of the movement.
Cables and weight stacks will allow this to happen and due to this, you can expect to get additional benefits that aren’t possible with free weights.
Obviously a combination of both free weights and weight machines will deliver the optimum results in the least time.