what are some GPP exercises that involve only the concentric portion of a movement? Pulling a sled...Pushing a wheelbarrow, none of which I can do because of family issues. what else could I do that wouldn't cost a lot of money?
have someone steer your car while you push it ;-). Find a nice big hill to push up if you have a little car. Find something heavy you can push, log, rock, etc.
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