Foundation phase, in full

Four sessions a week, three of them lower body — real work capacity built across glutes, quads, and hamstrings together, plus one upper session, before Growth pushes the glute-hamstring specialization work further.

New to this program? Read the split and the four session templates below — that’s the whole phase. Where this fits in the whole arc

Already running it, looking for the progression rule? Jump straight to double progression and the worked example. How Foundation progresses

Four sessions a week, three lower and one upper

The ACSM’s own position stand on resistance training progression brackets weekly frequency by training status the same way it does for Bikini’s own Foundation — roughly 2-3 days a week for a novice, 3-4 for an intermediate lifter. Four days a week sits at that same novice-to-intermediate boundary here too. What’s different from Bikini is the split itself: three lower days and one upper day, not two and two, because the NPC’s own Wellness wording asks for “a foundation of muscle” across the whole lower body — glutes, quads, and hamstrings together — where Bikini’s own criteria ask for a narrower, glute-focused lower-body look. See what’s actually different from Bikini for the full quoted reasoning.

Glutes land on all three lower days (Day 1’s hip thrust and glute isolation, Day 3’s bridge/thrust variant and glute isolation, Day 4’s finisher slot), for three touches a week — a real, deliberate step past Bikini’s own two-touch Foundation frequency, matching Schoenfeld, Grgic & Krieger (2019)’s own finding that more frequent training of a muscle, at equal weekly volume, produces more hypertrophy — the same citation Bikini’s own Foundation phase draws on for its two-touch minimum, applied here one step further because Wellness’s own total lower-body volume (below) genuinely calls for spreading across a third touch rather than stacking it onto two days.

What each session actually contains

Every row below is a movement pattern, not a single named exercise — pick the column that matches what you actually have access to. Reps run as a range: see how Foundation progresses below for exactly what that range means and when to add load.

Adding these four sessions’ sets: this template runs 12 direct glute-max sets a week (Day 1’s 3+2, Day 3’s 3+2, Day 4’s 2) — the same evidence-grounded number Bikini’s own Foundation runs, since both divisions’ own criteria ask for real, comparable glute development. What’s genuinely different: 10 direct quad-emphasis sets a week (Day 1’s squat and isolation, Day 4’s lunge) and 9 direct hamstring-isolation sets (Day 3’s hip-hinge and isolation, Day 4’s isolation) — both real, dedicated priorities here, not the incidental 2-set treatment those patterns get on Bikini’s own program. Lateral-delt volume drops to 2 sets a week, a single weekly touch, against Bikini’s own 5 — the volume this program isn’t spending on shoulders is the volume it’s spending on legs instead.

Waist work stays at 2 light sets, for the same disclosed reason the hub page’s own exercise-selection section gives: heavier waist training risks working against the “conditioned core” both Bikini’s and Wellness’s own criteria reward, and that’s standard coaching practice here, not a citation.

How Foundation actually progresses: double progression, not a fixed jump

This runs the exact same mechanism as Bikini’s own double-progression scheme, for the same real reason: this program is accumulating hypertrophy stimulus across roughly a dozen exercises a week, not testing a neurological ceiling on a handful of heavy lifts, so a fixed weekly load jump is the wrong tool here too.

The rep ranges — 8-12 for the squat and hip-hinge patterns, wider (12-20) for isolation work — sit inside the same ACSM position stand hypertrophy zone Bikini’s own program cites, and the wider isolation ranges lean on the same second source: Schoenfeld, Grgic, Van Every & Plotkin (2021)’s finding that a wide range of loads produces similar hypertrophy provided the working sets are taken close to real failure — the basis for prescribing leg curls and cable kickbacks at 12-20 reps rather than forcing every exercise into an 8-12 band.

When to move to Growth

The same real signal Bikini’s own Foundation phase watches for: most of the program’s rep-range ceilings becoming genuinely easy, two sessions running. See the Growth phase page for what actually changes — a fifth weekly session built around the glute-hamstring separation line, and higher weekly volume on all three priority lower-body patterns.