A complete body workout from legs to abs to shoulders is what you get while working out on exerKING that too in just 15 – 20 mins. This machine features hydraulic cylinders that can automatically and continuously adjust itself to the strength, power, speed, output and the need of the person using it. Opposing muscle groups, therefore, are alternately exercised during both flexion and extension without injury, damage or soreness as the user is not tied down to a pre-set speed of movement and never meets more resistance than he/she can handle. As muscle fatigue sets in the exerKING the total power machine accommodates the resistance to the user’s force potential totally unlike other fixed speed controlled isokinetic machines. To make fitness easier, eye-level read out gauges in a panel allows the individual to see precisely how much force he/she is exerting exactly where in the body and at what point of the exercise. This machine can also be used by people having back problems without any fear of having any complications and its one of the most comfortable sitting positions for workout. This machine is free standing and quiet, with no chains, pulleys, cams, cranks, water buckets, air hoses, cables or weights and is also economical, durable, and virtually maintenance free. Resistance is variable by the twist of a control knob provided on the left side of the seat, also a seat belt is provided for getting proper body hold on the machine.