Good Idea To Change Rep and Set Each Week?

[hypnotic]

Hi guys. I have been lifting a while and I have been trying this out. I have been changing my rep and set count each week.For example:
1st week 3x10
2nd 4x8
3rd 4x6
4th 3x12
5th 4x10
etc..etc..


Something along the lines of that. I always read that it is best to keep your muscles shocked.Would it be better to make them longer than just a week before I change them? Here is the workout I am doing now. If you will, please critique it too. Thank you

Monday(Back)
wide grip pullups
close grip pulldowns
bentover db rows
seated cable row
stiff leg dl
shrugs (smithmachine and db)

Tuesday(Chest)
bench press
incline bench press
incline flys
dips (leaning inward)

Wednesday(Arms)
skull crusher
close grip bench press
press downs
dips (completely vertical)

Thursday(Legs)
* Let me just say I haven't worked my legs in a while because my lower back is weird. I plan to start back up this week.

Squat
dead lift
(maybe) leg press (I think this my be the cause to my lower back pain)
standing calf raises
seated calf press


Friday (Shoulders & Abs)
seated db press
(standing or using smith machine) miltiary press with bar
lateral delt raises
front delt raise
* I used to do upright rows but I hear it real bad for the rotor cuffs.

weighted decline situps
crunch machine
leg raises (mix of knees to the chest and legs straight out)
cable crunches (If it better to have a wide base or narrow. If I cross my legs behind me it seems to hit my abs harder verses my knees out wide seems to hit my lower back

How does this workout look. I usually try to get around 10-12 mins of HIIT on the treadmill post workout.Keep in mind that I change the set and rep almost every week and I substitute barbell for dumbbell as well. I am looking forward to your responses.I think changing the workout keeps things interesting and helps shock the body at the same time.

 

[hypnotic]

No responses?

 

[Karky]

i think changing it every week is a bit much. Stick with a set/rep scheeme long enough to see the progress, change when gains starts slowing down.

 

[dougp25]

Yeah I agree with that (what Kark said). No need to change each week. Change when you get stagnant or bored.

 

[hypnotic]

Thats seems like a logical idea. How do my lifts sand splits look?

 

[dougp25]

Well I'm not an expert, but I would not do chest on Tues and Triceps on Weds. As I'm sure you know, a bench press involves a lot of triceps. So you are killing them on Tues, then pushing them again on Weds. Just my 2 cents.

 

[hypnotic]

That's probably why I have huge triceps.No, I realize that my triceps are getting worked 2 days in a row, but they are never ever sore. I can also work them just as hard. I know you are suppose to give them time to recover, but where else could I fit them in.If you look at it like that then I will have to space my shoulders and chest out in a different order.When I work my chest I go as wide as possible so my triceps are worked less as well.

Sorry for the choppiness in my words.When I read over the post it seemed sort of choppy.