i do not do biceps and triceps on the same day. but when working triceps your biceps are worked secondarily and same vice versa. but you gotta remember one is to push and one is to pull. and if you did them both the same day and pushed them hard u'd be dead the next and ur arms would be useless.
but thats my thoughts. dissect it as u ay....
Pairing agonist with antagonist muscles is certainly one way of structuring a routine. It is not the only way.
That said, if I had to pick the least effective 'way' to train, it'd be one part per week training. That philosophy simply doesn't match how our bodies respond to training in terms of stress and recovery.
Well, if you typed for an hour, you'd burn (lessee....)
102 calories per hour
Doesn't that make it worthwhile now?
Taken with a grain of caviar,
Barbara