Thinner Leaner Stronger is Michael Matthews’ strength and physique program for women, and the female counterpart to Bigger Leaner Stronger. It runs on 3-day or 4-day splits built around heavy compound work in the 4-6 rep range, with accessories in the 8-12 rep range. The training is organized into 8-week phases followed by a deload week, and the cycle repeats indefinitely as you progress.

The program’s core idea is that women build strength and shape the same way men do: progressive overload on the big lifts. Matthews pushes back on the “light weights for toning” myth. Each session starts with a primary compound lift (squat, deadlift, bench, overhead press, or hip thrust depending on the day), then moves into 3-4 accessory exercises. The 3-day version runs a push/pull/legs structure; the 4-day version splits into chest and triceps, back and biceps and glutes, shoulders, and legs.

TLS is a good fit for beginner to early intermediate women who want to get stronger and change their body composition. You do need access to a barbell and a rack. If you’re looking for a program that doesn’t require a full gym setup, Strong Curves is worth a look since it works well with dumbbells and a hip thrust setup. The full TLS book and bonus materials (including official Excel and Google Sheets versions) are available at legionathletics.com via Michael Matthews and Legion Athletics.