Quote Originally Posted by Moxie View Post
Partials reps only strengthen the muscles at that specific joint angle. AKA if you do curls only extending your elbow 25%, you will only gain strength in that upper 25% of your range of motion, you WILL NOT get stronger at the rep ranges below (the bottom 75% in this case). So, if you have trouble locking out your bench....do partials in the top 25% of your range. If you have trouble coming out of the hole on your deadlifts, train partials at the bottom 25% of the range.

When it comes to size, there really isn't a place for partials in my opinion, full range=full stimulation throughout the muscle=complete breakdown of actin, myosin, titin, the sarcolemma, etc. leading to greater hypertrophy adaptations.

Also, if you look at the amount of torque applied to the elbow joint during this guy's preacher curls, there is barely any. Muscles cannot sense force, ONLY TORQUE (rotational force) which is force "opening" the elbow during a curl, pulling it into extension. If you look at that dumbell when this guy is doing curls, and think about the biomechanics, most ALL of the force from that 150lb. dumbell is being transferred downwards pushing his elbow down into the preacher pad, only a small percentage of that force is being transferred into TORQUE which is what pulls the elbow into extension and makes the biceps and brachialis contract to slow the extension/flex the elbow back up. This is why when the guy dropped the dumbell down to about 90* he couldn't stop it from falling to the ground (most of the force from the DB was then transferred into "opening" the elbow into extension, and he couldn't handle it).
IM NOT ADVOCATING THIS GUY IN THE VIDEO- BUT YOU ARE BRAINWASHED HAVE YOUR MIND IN A BOX - IF YOU BELIEVE THIS- ALL THE PROS ARNOLD , HANEY,YATES- ALL PRACTICED PARTIALS. THEY DO HAVE A PLACE IN TRAINING. THERE IS NO ONE WAY TO TRAIN. I FEEL SORRY FOR PEOPLE WHO THINK IN SUCH CONCRETE TERMS- TO TRAIN JUST SLOW AND FULL LEGHTN IS BUILDING A BODY THAT ONLY FUNCTIONS IN THE GYM. FUNCTIONAL MUSCLE UTILIZES ALL TYPES OF PRINCIPLES- WE CAN LEARN ALOT FROM POWERLIFTERS AND THE OLD SCHOOL GUYS- SO WHAT IF HE COULDNT STOP THE DUMBELL I MEAN REALLY - WHO CARES? YOURE BODY SHOULD BE ABLE TO ADJUST TO ANYTHING- TRAINING DIFFERENT PLANES AND ANGLES IS AN INDIVIDUAL THING. YOU GO AHEAD WITH YOUR ROBOT TRAINING METHODS - I RESPECTFULLY WISH YOU THE BEST. ME? IM GOING TO TRY ALL TYPES OF TRAINING AND NEW THINGS- IM NOT JUST A BODYBUILDER, IM AN ATHLETE AND MY SLOW TWICH, FAST TWICTH AND ALL MY SMALLER MUSCLES WILL BE HIT BECAUSE I REFUSE TO ACCEPT ONLY A LIMITED WAY OF TRAINING. I HAVE DONE THIS SINCE 1977- THROUGH EXPERIENCE. I GOT MY CSCS CERTIFICATE YEARS LATER ONLY BECAUSE I DONT AGREE WITH ALL THE BULLSHIT THEY TEACH EVERYONE- SO I GOT MY BA AND THAT CERTIFICATE ONLY SO I COULD SPIT IN EVERYONES FACE THAT TRIES TO SHOW ME THEIR WORTHLESS PIECE OF PAPER THAT MEANS NOTHING. NOW IM NOT SAYING THAT ABOUT YOU - IM JUST MAKING A POINT- THERE IS WAY WAY MORE TO TRAINING. PARTIALS HAVE THEIR PLACE IN YOUR ROUTINE. IF THEY DONT - YOU WILL NEVER REACH YOUR POTENTIAL BOTTOM LINE.