[quote]sic wrote:
Ok, I stole this from another thread:
1-2 reps, Power
3-4 reps, Strength
5-6 reps, Strength, Sarcomere hypertrophy
7-8 reps, Sarcomere and Sarcoplasmic hypertrophy
9-10 reps, Sarcoplasmic hypertrophy
11-12 reps, Sarcoplasmic hypertrophy, Strength-Endurance
13-20 reps, Strength-Endurance
20+ reps, Endurance
I’ll try to explain these terms as basically as I can. First off, think of a bodybuilder vs. a powerlifter. A powerlifter is training for strength, not size. He utilizes low reps and heavy weights. A bodybuilder trains for size and not strength. He utilizes high reps and lighter weights. The reason for this is in the difference between sarcoplasmic and sarcomere hypertrophy.
Stressing your muscles with lifting causes the accumulation of sodium and calcium in your muscle cell. This triggers an increased protein synthesis and fiber hypertrophy. Basically the muscle “grows bigger in an effort to deal with this ionic disruption. This type of training also leads to a storage of glycogen and fluid within the muscle.”
When a person trains with high reps, this causes a greater than normal storage of glycogen. “The extra glycogen and fluid build-up is termed non-functional hypertrophy because it causes growth of the non-contractile tissue, or sarcoplasmic hypertrophy. Sarcomeres are the actual contractile elements of the muscle cells, or protein structures, whereas sarcoplasm is the fluid in and around the cell”
So basically:
High reps = sarcoplasmic hypertrophy
Sarcoplasmic hypertrophy = increase in non-contractile portion of the muscle
Low reps = sarcomere hypertrophy
Sarcomere hypertrophy = an increase in the size of contractile muscle tissue
Low reps = stronger muscles and more, longer lasting, muscle tissue
------------------------------------------------ [/quote]
sentoguy is right, but not exactly. Rep ranges 5-6 and 9-10 will grow more muscle tissue AND fill them out with glycogen. Voila! More, bigger muscles.
Stick with:
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over head presses, primarily dropping the bar in front of the face, not behind the neck (for anterior deltoids work).
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lateral raises (for medial deltoids work).
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bent over (horizontal) raises (for posterior deltoids work).
Do all three using both rep schemes.
Thanks to sic for the brilliant research and explanation… on the women’s forum, no less!