Title: Can You Get Stronger Lifting Once Per Week? (Yes, Here's How) — Fitbod
Headings: 

Content: 2. Can’t do as many exercises per muscle group
You can’t do as many exercises per muscle group if you’re lifting once per week
Due to the economy of training, you can’t do as many exercises within a single workout. Therefore, you’re going to get fewer exercises per muscle group overall. I’ll explain later why this isn’t necessarily a bad thing, but this will cause you to prioritize only the most effective exercises for building strength. For example, on a multi-day per week program, there are sometimes days specifically focused around ‘calves’, ‘abs’, or other isolation movements. On a one-day per week program, you simply don’t have the resources to waste on anything seen as ‘non-vital’. Takeaway: you need to be selective on the exercises you choose, which may mean cutting some isolation movements. 3. You might hit a strength plateau sooner compared with people who have the capacity to train more
You might hit a strength plateau sooner lifting once per week
A strength plateau is where you fail to increase your lifting numbers beyond a specific level for an extended amount of time.