Strength / Weight Training

I’d do a variation that targets your weaknesses. And I’d do it on deadlift day for an upper/lower type split.

For example, if you find yourself tipping forward with your squats, do front squats for a medium heavy 5x3. If you lose tightness at the bottom, pause squats. If you don’t accelerate fast out of the bottom, pin squats.

Alternatively, use it as an opportunity to hammer hypertrophy using machines. Going HAM on a leg press isn’t going to hurt progress. Again, choose something that will attack your weaknesses.

Edit: worth noting that Juggernaut looks simple enough when you just look at main exercise but there should be the majority of volume coming from the ‘assistance’ exercises afterwards (something that doesn’t exist within the Stronglifts cinematic universe). They shouldn’t be treated like an afterthought, they’re an integral part of your success.

How long have you been at the plateau? I’m interested as when I last did SL I sustained an injury (not related to SL) and the only plateaus I got to was on the OHP which I find the hardest. Plateauing on all the exercises was something I has not reached albeit there were the usual drops in weights for squat when I had a couple of bad days etc.

It may be worth checking out the Candito 6 week strength program. It's freely available and there's a free app called Bootcamp which has it there for logging. I've been using it for a while now and haven't hit any plateaus.

It's an upper/lower split but each week has a different focus, building up to testing your 1rm on the last week.

... August and I have been on the Stronglifts app four days a week until now. I have reached a plateau...

So about 10 weeks? I'd say time for a deload and start again from your new % of xrep max. If it is your first cycle of 5x5 you should see a decent increase above where you are now in 10 weeks time and can do this basic cycle for maybe a year (your body/training may vary) seeing each end of cycle at a higher peak.

If you've been around a handful of cycles already then start specialising in your weakness. Need more muscle = a cycle of hypertrophy, or more power? more strength? etc... Keeping in mind food and rest, too.

Then you can program your cycles specific to what you need to work on, tapering between them so you're not overworking yourself and not losing significantly in an area you're not focusing on. At this point you might want to look at organising your tapers for any events you're training for, too.

If you feel like you can squeeze more out of an LP program then I highly recommend GZCLP - it has what you mention of working at higher and lower rep ranges (which works well for me as well). Due to starting and stopping barbell strength training a few times I've run starting strength, stronglifts, and GZCLP and the latter is definitely my favourite.

As the weight gets heavier, squatting every day, especially close to your max in a low-ish rep range will become hard to recover from. I squat once a week and see good progress. From looking at Juggernaut it seems like a decent program and you could just run it straight up.

I hesitate to make too many modifications to programming, unless they're made to be moved around a bit. If you run Juggernaut just run it as is for a couple months, if you feel like you need more volume (particularly on the squat) then look for another program.

When i plateau'd on starting strength, I jumped on 4 day a week texas method and that kept me moving up — you get to keep a lot of squat volume, but more structured so you don't burn yourself out on it