What is the Upper/Lower split?
An Upper/Lower split divides the body into two training sessions: upper body (chest, back, shoulders, biceps, triceps) and lower body (quads, hamstrings, glutes, calves, plus core work). The standard implementation runs four sessions per week (Upper, Lower, Upper, Lower) with rest days between, so every muscle gets trained twice in a seven-day window.
Upper/Lower splits have been a staple of strength and hypertrophy programming for decades. Two of the most influential modern Upper/Lower templates are Lyle McDonald's Generic Bulking Routine and Dante Trudel's DC Training, both from the early 2000s. Many of the longest-running powerlifting routines, including the Westside Barbell conjugate template, are also Upper/Lower-based at their core.
How Upper/Lower is programmed
Each Upper session typically opens with one or two heavy compound lifts (bench press, overhead press, barbell row, weighted pull-up), followed by isolation work for arms and shoulders. Each Lower session opens with a squat or deadlift variation, then quad, hamstring, glute, and calf accessory work. The split lets you train each major muscle group with significant volume per session while still hitting the Schoenfeld 2016 frequency finding that two sessions per week produce superior hypertrophy compared to once-weekly training.
Weekly volume targets follow the same dose-response curve as other hypertrophy splits: most lifters land in the 10 to 20 working set per muscle per week range, with beginners on the lower end and intermediates often programming 12 to 18 sets per muscle. Progressive overload is usually managed via reps in reserve (RIR) rather than fixed 1RM percentages, with the option to layer in heavier strength work on the first compound of each session.
Who Upper/Lower is for
Upper/Lower is the most flexible mid-frequency split. It works for hypertrophy-focused lifters who want the proven 2x-per-week training frequency without the recovery demand of a 6-day Push-Pull-Legs, and it works for general strength and physique lifters who can only train four days a week. Many natural bodybuilders run Upper/Lower for years and only switch to higher-frequency splits during specific blocks.
It's also the most common split prescribed for late-stage beginners and early intermediates transitioning off a 3-day full-body program. The four-day cadence gives more session time per muscle without the recovery hit of training six days per week.
Common mistakes
The first mistake is loading both sessions with too many compound lifts. An Upper day with bench, OHP, barbell row, and weighted pull-up all run heavy is a recipe for poor accessory volume and stalled hypertrophy. Pick one or two heavy compounds per session and use the remaining slots for hypertrophy-oriented accessory work.
The second mistake is treating Lower days as squat-only. Hamstring and glute volume is what separates a good Upper/Lower split from a bench-and-squat program. Plan dedicated posterior chain work (Romanian deadlifts, hip thrusts, leg curls, glute-ham raises) into every Lower session.
The third mistake is undertraining isolation work for visible muscle groups. If your goal is hypertrophy, arms, side delts, and calves need direct volume across the week. Programming only the main compounds plus a few sets of bicep curls won't produce the look most physique-focused lifters are after.
What to expect
On a well-programmed Upper/Lower block, expect balanced hypertrophy across upper-body and lower-body muscle groups, with steady strength gains on the main compounds if you progress them deliberately. The split's main advantage is sustainability: many lifters run Upper/Lower for years without burning out, because the four-day frequency is manageable while still hitting each muscle with twice-weekly volume.
