http://woldfitness.com/2010/05/awesome-exercise-mastering-the-pull-up/ Luke's Fit Body Formula Sun, 13 May 2012 13:34:11 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://woldfitness.com/2010/05/awesome-exercise-mastering-the-pull-up/comment-page-1/#comment-153459 Wold Fitness Notebook » Blog Archive » Pull Up Or Chin Up? (And How To Improve Both) Thu, 09 Feb 2012 13:18:31 +0000 http://woldfitness.com/?p=1094#comment-153459 [...] bike… all of these activities tighten your shoulder joint and can lead to injury with both pull ups and chin [...] [...] bike… all of these activities tighten your shoulder joint and can lead to injury with both pull ups and chin [...]

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