Arm size will come around nicely from the compound lifts in this workout, as well as
the direct bicep and tricep work.
Direct bicep and tricep training should be viewed more as a supplemental portion of the arm building process in order to fully optimize their development and squeeze out that extra 10 - 20 % of growth that your chest / shoulder / back training doesn't provide.
Don't me wrong here; I'm NOT saying that
direct bicep and tricep exercises are unnecessary or that they don't play a role in the process of building big arms.
Not exact matches
However, smaller muscle groups such as
biceps,
triceps and deltoids are being worked twice a week — one time with a
direct workout
and another time with the larger muscle groups like back
and chest.
However, don't forget that the overall stress of
bicep and tricep involvement as secondary muscles in exercises which primarily target other body parts is still somewhat cumulative
and it can unfavorably increase catabolism (muscle breakdown), so you should still be careful about the volume of
direct and indirect work you do.
The majority of your arm growth will NOT come as a result of your
direct bicep curl
and tricep extension exercises, but will instead be achieved through your compound chest, shoulder
and back training.
Jonathan, my former training partner, packed on an amazing 20 pounds of muscle in only 10 weeks —
and I recalled that his arms grew like crazy when he was using only one
direct biceps /
triceps workout a week — in addition to two chest / back sessions.