This unique machine is called the Dyno! It's a isokinetic resistance machine, where the resistance level is equal to the client's power output. In other words, the harder you push, the heavier the weight gets (up to 1000lbs). This machine is used by our trainers to measure a client's muscular endurance, power output, and max effort. The Dyno can be used for the following exercises: leg press, wide chest press, narrow chest press, and the seated row.
According to Sportsmedicine.about.com, "An isokinetic muscle contraction is one in which the muscle contracts and shortens at constant rate of speed. This type of muscle contraction usually requires special, expensive training equipment that increases the load as it senses that the muscle contraction is speeding up.The benefit of this type of resistance training is that the muscle gains strength evenly all through the entire range of movement and it is one of the fastest ways to increase muscle strength."
The Dyno is a fun addition to the gym and is loved by many. Next time you are in the gym, be sure to try it out :)