Exercise band bar

1. An exercise device allowing for rapid, uniform adjustments of an exercise band as to length and resistance while in use, the exercise device comprising:

a handlebar being elongated and comprising two open tubular ends, each open tubular end having an inner diameter and including a longitudinal slot of a first width through an associated sidewall portion;

the exercise band being wide, flat, and elastic, and comprising two flat, full-width ends, each flat, full-width end having a second width less than or equal to the first widths of the longitudinal slots, respectively, each flat, full-width end secured in flat, full-width fashion to one of a pair of spreader insert tubes being separate and rigid, each spreader insert tube having a length equal to or greater than the second widths of the two flat, full-width ends of the exercise band, respectively, and each spreader insert tube further having a diameter less than the inner diameters of the two open tubular ends of the handlebar, respectively;

wherein each spreader insert tube is removably inserted lengthwise into a respective one of the two open tubular ends of the handlebar, with the two flat, full-width ends of the exercise band respectively extending through the longitudinal slots in the flat, full-width fashion, and further with the pair of spreader insert tubes respectively resting off-center in the two open tubular ends against a corresponding inner surface of the associated sidewall portion; and

wherein the handlebar is configured for respectively securing the two flat, full-width ends of the exercise band quickly, easily, and uniformly to the two open tubular ends of the handlebar.

2. The exercise device of claim 1 , wherein the pair of spreader insert tubes comprise hollow interiors and substantially full-length slots through sidewalls thereof, and wherein each flat, full-width end of the exercise band further comprises a full-width stiffened portion secured inside a respective one of the hollow interiors of the spreader insert tubes, with non-stiffened portions of the two flat, full-width ends of the exercise band respectively extending through the substantially full-length slots through the sidewalls of the pair of spreader insert tubes in the flat, full-width fashion.

3. The exercise device of claim 2 , wherein the full-width stiffened portions of the two flat, full-width ends of the exercise band are respectively secured off-center in the hollow interiors of the pair of spreader insert tubes.

4. The exercise device of claim 1 , wherein outer surfaces of the two open tubular ends are substantially cylindrical.

5. The exercise device of claim 1 , wherein the inner surfaces of the two open tubular ends are substantially cylindrical.

6. The exercise device of claim 1 , wherein the longitudinal slots in the two open tubular ends are respectively and circumferentially aligned with one another.