← FitnessByMaddy The Lab · Notes from the engine

Training science,
shown.

Evidence-based training and nutrition, explained simply by Maddy (NASM-CPT). The actual math behind fat loss, muscle, cardio, adherence and recovery — no bro-science, no guru talk.

Adherence · The Math

Why 75% adherence beats 100%

Perfect-or-nothing is the fastest way to quit. Here's the data on why hitting three of every four sessions — for twelve weeks — out-builds a flawless three days.

Read · 4 min →
Fat Loss · Myth-bust

Fasted cardio for fat loss: what the science actually says

Training on empty feels virtuous. But total daily calories — not the timing of your run — decide fat loss. What the research really shows, and what to do instead.

Read · 5 min →
Programming · Frequency

How many days a week should you actually train?

3, 4, 5, 6? The honest answer depends on your recovery, your goal and your life — not a generic template. How the right frequency is derived from your body, not guessed.

Read · 5 min →

Stop reading. Start with your Body-ID.

Free · ~3 minutes · then Maddy builds the plan around your numbers.

Find Your Body-ID →