The time period refers back to the mixed mass used on a particular sort of train gear designed to construct decrease physique energy. This gear makes use of a platform, typically known as a sled, onto which resistance within the type of weighted plates is added. The person pushes this loaded platform away from their physique utilizing their legs. An instance can be including a number of 45-pound plates to the carriage of the machine to extend the problem of the train.
The adjustable resistance supplied by any such gear permits for progressive overload, a key precept in energy coaching. Constant will increase within the quantity of resistance used over time can result in good points in muscle mass and general decrease physique energy. Traditionally, variations of this gear have been utilized to permit people to coach leg energy with out the balancing calls for of free weight workouts corresponding to squats.