Circuit training is a great idea. You can alternate upper body strength training exercises with aerobic recovery stations and then lower body exercises - maintaining your target heart rate while you  perform strength training. Until hydraulic resistance same along, that rally could not happen.

Hydraulics utilize a cylinder where a piston will move fluid through a restricting orifice. It's much like aquatic exercise, only the fluid and the movement is more controlled. There are no weight stacks to manage or change. Just the safe accommodating resistance that keeps you moving smoothly and safely around the circuit.

Music makes it fun. An instructor or a cue tape will tell you to move each thirty seconds and to check you heart rate each seven and a half minutes. At the end of half and hour, you will have maintained your target heart rate, performed a  minimum of three sets of strength training exercises on every major muscle group and burned up to six hundred calories.

Who would benefit from a true 30 minute, total workout?

When dieting, up to fifty percent of the weight lost is lean muscle and water. The key to permanent weight loss is strength training. With the hydraulic system, women will strength train.

The busy executive must do both cardio and strength training to have  a complete workout. With conventional equipment, they'll need an hour and a half. With the hydraulic system, they'll be done in thirty minutes.

Older people lose lean muscle mass due to inactivity and are often afraid of workout injuries. With the hydraulic system, they can enjoy the benefits of strength training without the fear of injury.

Studies have shown that rehabilitation can be achieved more safely using hydraulics rather than with stack apparatus.