Benefits of Cables

Some People think that Free Weights (Barbells and Dumbells) are the only and absolute way to train to get results.

However,

Those weight machines that alter resistance according to the angle of force applied can accelerate your fatigue while triggering a greater release of natural hormones. Now the question becomes, do these qualities translate into greater gains? A study published in the European Journal of Applied Physiology compared variable resistance training to the constant resistance that dumbbells and barbells provide using 23 male subjects.

Testing before and after 20 weeks of training showed that, although both groups increased muscle size and strength, variable training helped subjects perform about 40% more reps to failure with dramatically increased volume compared to constant resistance. So if being able to lift more for longer is the goal, put in a couple months of variable resistance training.