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I want an opinion. Seriously.
Is this product Sprint Trainer for Arms a piece of crap?
I wrote an article last September called Arm Action in Sprinting
With the forces produced on the backswing, there’s no way you can keep your elbows locked at 90 degrees. If it bends, say to 100 or 105 degrees, no problem!
I’m a firm believer you should aim to push the elbows DOWN, not BACK on the backswing (sorry Adarian, but this is where I disagree)
If you want to practice arm swing mechanics, the best piece of equipment is a mirror! (Maybe two empty rolls of toilet paper, but that’s another story).
From the web site:
Resistance tubing connects upper arm with hand to encourage a correct bend in the elbow.
During backward movement, tubing provides moderate tension to develop powerful back swing while it helps to accelerate the arm during forward propulsion.
Sprint Trainer features a cuff that attaches around the upper arm and a loop that goes around the finger and thumb.
Lined thumb grip keeps tubing from cutting into the hand.
Velcro cuff fits up to 17" bicep. Green. 1 lb. Sold as pair.
Note that these are sold as a pair. What do they expect?
I look forward to your comments.