|01-23-2005, 09:18 PM||#1|
I thought the board might be interested in a preliminary review of the McMaster-Carr Giant Rubber Bands.
These are an economical version of the Jump Stretch or Iron Woody Fitness bands. For $40 (including shipping) I ordered the packages of 1.5", .75", and .5" bands (www.mcmaster.com).
The 1.5” come two to a pack, the others come five to a pack. The twelve bands in three sizes should offer a lot of options. I've only used them a few times but they seem durable. You can note from the pictures that the bands are formed by fusing/gluing the overlapping ends.
I tested the bands to see how much assistance they provide. I used a girth hitch to loop a band around a 71/2 foot high pull-up bar. Then I stood in the band while standing on a scale. The difference in weight with and without the band is the assistance the band provided for the stretched band at about 50F. The 1.5” band when stretched 40” provided 45 pounds of assistance; the .75” band when stretched 38” provided 17 pounds of assistance; and the .5” band when stretched 46” provided 11 pounds of assistance.
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