Only Force Fin swimming fins are designed to concentrate the force of the blade further back on the foot, using the muscles of the whole leg, not just the lower leg.
Although swimming is considered one of the best aerobic or cardiovascular-conditioning exercises, many people forget to use their legs where the largest muscles are located. Since the greatest cardiovascular benefits come from including the highest percentage of the body’s muscles – that’s why cross-country skiing and rowing are considered two of the most demanding sports – it makes sense that swimmers who activate the large muscle mass of the legs by kicking will benefit from a more demanding workout that burns more calories and increases fitness levels.
Add fins to the equation and the increased load they add to the legs means that as long as exertion levels remain high, the cardiovascular system gets an even more intense workout with even greater fitness benefits. Unlike all other fins, even those with open toe drains, only Force Fin swimming fins are designed to concentrate the force of the blade further back on the foot, using the muscles of the whole leg, not just the lower leg.
Try this simple test to see the difference between how our fins work compared to other brands.
While seated, cross your ankle over your knee, grab your toes and pull them in the direction of the sole of your foot. Do you feel the stretch and tension running from the top of your foot up and along the shin? Those are the primary muscles that other fins work because the fin blade extends from your toes.
Now, grab the foot in both hands – one holding the heel, the other holding the top of the foot – pull again toward the sole of the foot and resist with the leg. The tension has moved up to the upper leg, hasn’t it?
Because of their unique design base don human biomechanics.Fo rce Fins and Slim Fins work the larger muscles of the upper leg in addition to the lower leg. These are the muscle groups you need to develop a strong kick and a better workout.