6.3 A Note on Repeating the Same Workouts Twice a Week

When you split volume across two sessions per muscle per week, one of the cleanest ways to do it is to repeat the exact same workout on both days. For an upper/lower split, this means you have one Lower workout and one Upper workout, each performed twice a week (e.g., Lower on Monday and Thursday, Upper on Tuesday and Friday). This approach ensures that every muscle fiber is recruited with the same exercises at the same joint angles and muscle lengths, twice a week. There is no guesswork about whether a region received a stimulus on only one day; the frequency is a genuine 2× for all regions.

The “1+1 split” (using different exercises for the same muscle across sessions) is a refinement for when your exercise selection deliberately differentiates regions (e.g., a long‑head triceps movement and a lateral‑head movement on separate days). This is discussed further in the Chapter 6 FAQ. But if your goal is straightforward—add size to the whole body, with a slight emphasis on a few muscles—the repeated‑workout template is not a compromise; it is a strength. It simplifies progression tracking, reduces setup time, and guarantees that the fibers you care about are stimulated twice a week with the highest quality per set.