Personally I think you should work your weakest body parts twice a week to keep yourself as symetrical as possible.

Legs, but I'm trying to build a bigger ass lol

All of them except my back and even then I will occasionally do light work to flush the muscle with blood.

Whatevers not sore yet. The cool thing with my situation is I walk past my gym everyday before work. So i have the luxury of deciding to do something twice without having to plan much. i am there 7 days a week,... usually. But some days consist of ten min of cardio and a little abs and calves ( and thats basically my off days.) Maybe my chest workout got cut short for some reason, ill wait four days or so and hit it again with another small but intense routine. usually rotating high volume one workout and heavy compound lifts the next (if i do something twice)

I love hitting legs I go five times a week and do legs Monday and Friday. Old habits die hard I guess something I picked up playing football. I do split Monday I'll do upper and some calve then Friday I'll do calves and hamys. Already have decent upper body, also I feel like I have more energy doing this even when I hit upper body

I hit all bodyparts twice a week and after 14 years of training - I am making some of the best gains Ive EVER made. Change? My mindset to overtraining and intensity

I do twice a week on everything. Failure on everything once a week and concentration/ isolation exercises for shaping on the second

Every body part.
Doing PHAT atm.

every body part lol

Mine as of now is...

Monday: Chest/tri
Tuesday: Shoulders/abs/cardio
Wednesday: Back/Bi's
Thurday: Chest/Tri
Friday: Legs/abs
Saturday: Shoulders/abs/cardio
Sunday: offfffff

I like to rotate i pick a body part and hit it 2 times per week for a month than i switch to the next body part so right now i am working back 2 times per week and next week i will switch to chest as it will have been a month hitting back2 times per week and after a month of that i will hit legs 2 times per week and so on

I have always tried to work each muscle twice a week. However i have found that as my volume goes up i start feeling symptoms of overtraining. Over the past few months i have gone hard for two times aweek for two weeks then on the third week work each part only once but kill it. Since i have strted this i have seen significant strength and visual gains.

I went from training each body part from once/wk to 2x/wk and my gains skyrocketed. Once/wk wasn't working for me. When off cycle i just decrease the total volume but still keep everything 2x/wk.

The theory behind the overload principle is to place the muscle fibers under enough stress to cause sufficient tissue breakdown, which stimulates repair processes. The greater the tissue damage, the more extensive the repair process. Since it is the repair process that yields our gains, it's important to not interrupt it. This means, ample time must be given for the muscles to recover before hitting that same muscle group again.

Intensity levels help you determine how long is needed. What I used to teach my clients was to tailor the program to the goal, of course. If you're a weight loss or stamina-oriented goal, then the lighter weights and higher reps are used. This causes less tissue damage than your heavier weights, this requiring less recovery time. As a result, muscles can be worked more frequently. Twice a week is good for anywhere between 10-25 rep range. If you're going for size and strength, your rep ranges should be closer to 4-6, an you should only hit it once per week.

I was taught to use 48-72 hrs as a rule of thumb, but personal experiences define what's best for the person. You should beer work the same muscles two days in row though.

I hit everything twice a week

I train every body part once a week (low frequency with high volume). I only hit them once a week, but the intensity and number of exercises is increased to put enough stress on the muscle. Besides if I hit chest on Tuesday then I hit shoulders Thursday and triceps Saturday. I actually hits chest 2 times and triceps 3 times each week in some way.
Lagging body parts I hit 2 times a week, but not to hard to prevent muscles to recover.

I hit every body part 2x a week, I use to only workout each body part once a week

While training each muscle group with a once-per-week work out frequency still appears to be most popular among the average person it also appears to be the least effective for most people. Does it work? Sure assuming you do everything else correctly. Is it what works best for most of us? Absolutely not.

That full week of rest in between workouts of the same muscle is, no matter which way you look at it, a big waste of time. Think about it. It’s 52 training sessions per muscle per year. If you worked out with a twice-per-week frequency, it’s 104 training sessions per muscle per year. Which do you think has the potential to lead to better results in the same period of time? Seems obvious now, doesn’t it?

while you can easily do too little or too much no matter what weight training frequency you choose, it’s pretty safe to say that the most common issue with a once-per-week frequency is not creating enough of a stress to warrant that full week of rest you’re allowing, and there are SOME who do a 3x a week per body part but the most common issue with a 3-times-per-week frequency is not creating so much of a stress that you aren’t able to recover in time for the next workout.

With a twice-per-week frequency like this, you actually end up in the most ideal situation for avoiding both of these issues.

Monday: upper body
Tuesday: lower body
Wednesday: off
Thursday: upper body
Friday: lower body
Saturday: off
Sunday: off

This way you get 2 to 3 days rest on each body part witch is more then enough time to recover as long as your not beating urself into the ground.

As long as you know your body and your limits you shouldn't have a problem but i don't suggest this to rookies just starting off. A fresh body is gonna respond better to once a week VS a seasoned vet