Patent attributes
An exercise apparatus includes: a support track including a first channel on a first side, a second channel on a second side, and a row of fixation holes, the first channel, the second channel, and the row of fixation holes being parallel to each other; a carriage including a carriage frame, a pin rod, a first side roller, and a second side roller, wherein: the pin rod is coupled to the carriage frame and positioned to be removably inserted into at least one of the fixation holes to fix a position of the carriage with respect to the support track, the first side roller is coupled to the carriage frame and positioned within the first channel, and the second side roller is coupled to the carriage frame and positioned within the second channel; and at least one support bar affixed to the carriage.