Linear progression does not work forever. Eventually the stress induced on your body will take longer than 48 hours (the time until the next training session if you're training on Monday, Wednesday, Friday) to fully recover from, and as a result your next training session will be affected negatively. For example if you squat 140kg for
3x5 on Monday, you might only get 142.5kg for 4,3,2 or something like that on Wednesday. If you're not fully recovered, you'll feel it.
Stress on your body when you're on linear progression
If linear progression is right for you (and it will be for anyone who is new to lifting), the stress induced on their body will behave like the above diagram. Your body gets stressed by the first training session on Monday, but then the body is able to recover from it before Wednesday's training session, and so on. During this period you'll make the quickest gains you'll ever make.
Stress on your body when linear progression is no longer suitable
As you can see from the diagram above, as I described previously eventually you'll reach a stage where the stress induced on your body will take longer than 48 hours to recover from and will affect your next session. This isn't invitation to be a pussy at the first sign of missing a rep though. If you get 3x5 on Monday but 5,5,4 on Wednesday, repeat the Wednesday weight for the next session.
A good rule of thumb of knowing when your linear progression days are over (PROVIDED YOU HAVE GOOD TECHNIQUE) is when you stall at a certain weight, then you deload but once you work your way back up you stall again at pretty much the same time, or a little bit higher. This means the time you put in to get little to no improvement is no longer worth it and you need to change how your program things.
If you started out on 5x5 and are experiencing the above, drop down to 3x5. You'll be able to continue making progress.
Introduction to Intermediate Training:
Intermediate model
In the above figure, you can see the model for intermediate programming. This is also known as the "Texas Method", because it was developed in Texas I guess. Basically you have a Medium day on Monday, a Light day on Wednesday, and a Heavy day on Friday. In terms of rep schemes it goes like this:
Monday
5x5 (~80-85% of Friday's weight)
Wednesday
3x3-5 (at a weight ~80-85% of Monday's weight)
Friday
1x5
This is the concept, remember how I said once you're at the end of your linear progression days, the stress induced from your first training session in the week will take longer than 48 hours to recover from? In intermediate programming, we take advantage of that. You will do a moderately heavy weight for 5x5 on Monday, then on Wednesday you will lift a light weight for low reps just to flush blood through the muscles (and whatever other justification there is for having a Light day, e.g gives you a mental break etc.), then on Friday you will lift a heavy weight for 1x5.
Friday is the most important day, this is the day where you handle real weights. But it is important to get the volume on Monday's session in other to set yourself up to being able to lift heavy weights on Friday. Monday will be referred to as your "Volume day" and Friday will be referred to as your "Intensity day". You'll understand why when you look at the figure below:
Relationship between volume and intensity during a week of the Texas Method
So the week starts out with high volume moderate intensity, then you have the light day in the middle of the week, then the week ends with high intensity low volume (since you only do one heavy set).
The Texas Method Template
Here is what the program looks like:
Monday
Squat 5x5
Bench 5x5 (alternate with Press 5x5 in the next week)
Row 5x5
Curls
Wednesday
Squat 3x3
Press 3x5 (alternate with Bench Press 3x5 in the next week)
Power Cleans
Weighted chin-ups
Friday
Squat 1x5
Bench 1x5 (alternate with Press 1x5 in the next week)
Deadlift 1x5
Dips
Ab work should be done everyday too, just one exercise for 3 sets should be fine.
NOTE: Since the bench press and press alternate from week to week, the percentages for the light pressing days are determined from the volume day weight from the previous week. E.g in the above case, the weight to be used on the Press on Wednesday for 3x5 is 80-85% of what was done for 5x5 last Monday.
Getting Started on Texas Method
When you first start on the Texas Method, start light. Give your body time to adapt to this way of training. Whatever weights you finished with on linear progression, take around 80% of those weights and use them as your starting weights.
Your first week should feel easy. Let's say you stalled on 140kg for 3x5 on squats on linear progression. When you start on Texas Method, do 110kg 5x5 and 130kg 1x5 in your first week, 115kg 5x5 and 135kg 1x5 in your second week, 120kg 5x5 and 140kg 1x5 in your third week, 125kg 5x5 and 145kg 1x5 in your fourth week. The weights probably won't feel easy at this stage, so from here on take smaller jumps. Increase Friday's weight by 2.5kg.
Don't obsess over how much you do on Monday. It is just a volume day. After your fourth week on Texas Method, you can stick to the same weight on Mondays for 2-3 weeks. If you increase the 5x5 weight every week eventually you'll burn out too soon for this routine. At the moment I'm doing 145kg on Monday, and in the 180's for 1x5 on Friday (this may vary depending on individuals, but if you're doing 150 for 5x5 on Monday and 160kg 1x5 on Friday, the weights are too close).
I've been running Texas Method for squats for almost a year, and I can imagine doing it for much longer still.
Things You Should Know
- The weight you handle on Volume day doesn't matter to the point where you care about setting PR's on Monday
- Don't skip Volume day ever, without it you cannot perform well on Intensity day
- You can microload on the bench press and press if you wish
- If you stall, deload by 10% and take 3-4 weeks to work your way back up
- If you don't like benching and pressing heavy every second week, you can switch into a Texas Method split:
Monday
Bench 5x5
Press 3x5
Row 5x5
Tuesday
Squat 5x5
Power cleans
Thursday
Bench 1x5
Press 1x5
Friday
Squat 1x5
Dips
Deadlift 1x5
I haven't really listed assistance lifts in the above template. Note that you'll be focusing on one pressing movement over the other since one of them has to be done first. The light day has been omitted, but you can still do it on Wednesday if you wish (I do this).
Hopefully this post will be useful to fellow lifters out there!