gfycat porn | porn pics | user porn
 In every concentric contraction (overcoming or lifting a load), lifting a certain weight  with more acceleration will always produce a greater degree of intramuscular tension.  In an eccentric contraction (yielding or lowering a resistance) it’s
 In every concentric contraction (overcoming or lifting a load), lifting a certain weight  with more acceleration will always produce a greater degree of intramuscular tension.  In an eccentric contraction (yielding or lowering a resistance) it’s

bodybuilding, intramuscular tension, lifting

published on: 2012-12-05 08:48:00

trustedsteroidshop.tumblr.com/post/36801641189/

trustedsteroidshop.tumblr.com/post/36801641189/

trustedsteroidshop.tumblr.com/post/37102603321/

trustedsteroidshop.tumblr.com/post/37102603321/

trustedsteroidshop.tumblr.com/post/37323877234/

trustedsteroidshop.tumblr.com/post/37323877234/

trustedsteroidshop.tumblr.com/post/37628610292/

trustedsteroidshop.tumblr.com/post/37628610292/

trustedsteroidshop.tumblr.com/post/37706399471/

trustedsteroidshop.tumblr.com/post/37706399471/

trustedsteroidshop.tumblr.com/post/37780171279/

trustedsteroidshop.tumblr.com/post/37780171279/