Training & Nutrition

A practical summary of evidence-based resistance training and nutrition principles, with attention to the questions that come up most often for trans-feminine readers on HRT — whether estrogen blunts trainability, whether to time workouts around hormone cycles, and whether the cardio / fat-loss advice popular in fitness media holds up under scrutiny. Sourced primarily from a discussion with Dr. Lauren Colenso-Semple (exercise physiologist, McMaster University) on the Huberman Lab podcast.

The framing that matters for HRT readers

The most useful thing to take away first: muscle protein synthesis and the metabolic response to training are not different between sexes. What is different is the baseline — cis male muscle mass is higher because of the testosterone surge during natal puberty. Once you train consistently, the relative gains in muscle size and strength are the same.

For trans women on HRT this means:

• T suppression lowers your baseline muscle mass over the first 1–2 years (covered in Physical Transition Overview).
• It does not make you respond worse to training. The stimulus → growth relationship is intact at low-T levels.
• Your individual ceiling depends on consistency, programming, and genetics, not your current T level.

This is the cleanest answer to "is it worth lifting on HRT" — yes, and the answer doesn't change because of estrogen.

Programming

Five principles, in priority order:

1. Progressive overload is the whole game. Gradually increase load, reps, sets, or density over time. Everything below is just "how to structure that progression."
2. Train close to failure. RPE 8–9 — stop one or two reps before form would break. The growth signal comes from being near the edge of your capacity, not from grinding to absolute failure on every set.
3. 6–12 reps is the sweet spot for general hypertrophy. Beginners should start at the top of that range (8–12) for technique safety. Going significantly higher invites form breakdown before genuine fatigue.
4. 2–3 working sets per muscle group per session, minimum. Three is better than two for most.
5. Full body 2–3× / week, or upper-lower 4+ × / week. Either works; pick what fits your schedule. Splits beyond upper-lower are programming ergonomics, not magic.

Sets, reps, rest

Goal	Reps	Rest
General hypertrophy (default)	6–12	2 min (3 min for big compounds)
Beginner / technique-building	8–12	2 min
Max strength (e.g. 1RM work)	1–5	4–5 min

For time efficiency, use agonist-antagonist supersets (push paired with pull, e.g. bench press + row) to roughly halve total session time without losing stimulus.

Movement quality

• Tempo: explosive on the concentric (lifting) phase, controlled on the eccentric (lowering) phase. "Move the weight as fast as you can on the way up; lower it under control."
• Range of motion: standardize a full ROM and stick to it. Partial reps and isometrics make load progression hard to track because the effective stimulus is no longer apples-to-apples between sessions.

Nutrition

The single most important nutrition variable for people who lift is total daily protein intake, averaged over days and weeks. Not protein per meal. Not the timing of any specific meal.

• Target ~1.4–1.8 g protein per kg bodyweight per day for active trainees, slightly higher in a deficit.
• Distribute it roughly evenly across the day if you can; don't stress about hitting an exact macro at an exact hour.
• The "anabolic window" — the idea that protein must be eaten within ~30 minutes post-workout — is outdated. Elevated protein synthesis after resistance training lasts many hours; consistent intake matters far more than post-workout timing.
• Fasted vs. fed training produces equivalent adaptations for muscle growth and fat loss. Choose based on how you feel — both work.
• A meal eaten immediately before training is unlikely to be used as fuel during the session itself; the digestive timeline is too slow.

For fat loss specifically: adjusting nutrition moves the needle far more than adding cardio does. Cardio is for cardiovascular and metabolic health. Trying to "outrun your fork" is much harder than eating slightly less.

Myths worth ignoring

The fitness internet pushes a lot of routine-changing advice based on hormonal state. The evidence does not support any of it.

Claim	Reality
Train differently in different menstrual cycle phases	No measurable benefit to phase-based programming. Train consistently.
Combined oral contraceptives blunt strength / hypertrophy	No clinically significant difference vs. natural cycle in strength or muscle gain.
Training routines should change at perimenopause / menopause	No. The goal — increasing and maintaining muscle and strength — does not change.
High cortisol prevents fat loss	Acute cortisol fluctuations are normal and necessary. Not a body-comp obstacle.

These map directly onto similar claims aimed at trans women: "estrogen ruins your gains," "you have to train differently than cis men," "your cycle / dose changes mean you need to alter sets/reps/timing." None of them have evidence. Pick a sensible program, run it consistently, progressively overload it, and let your body adapt on its own timeline.

Cardio and the interference effect

The "interference effect" — that endurance training blunts hypertrophy adaptations when stacked too close to lifting — is real in principle but unlikely to matter in practice unless training volume is genuinely excessive.

• For general health: if you lift 2–3× / week and play a sport or do something physically active a couple of other days, dedicated cardio is not strictly necessary.
• If you have specific endurance or sprint goals, train those.
• If you stack cardio with lifting, separate them by several hours where you can; if you can't, prioritize the session that matches your current goal (lifting first if hypertrophy is the goal).

Mobility and warm-up

• Dedicated mobility work is not necessary if your strength training passes through full ROM on every lift.
• Do a brief dynamic warm-up — a few minutes raising heart rate plus light-load warm-up sets of the day's main lift. That's enough.
• Weighted vests are useful for loaded squats, lunges, and step-ups. They are not useful for general walking — the load is too low to drive meaningful muscle or bone adaptation.

Creatine

The single supplement with strong evidence and a clean safety record.

• Form: creatine monohydrate powder. Avoid gummies — actual creatine content is often unreliable.
• Dose: 5 g/day. No loading phase needed.
• When: any time of day. Daily, on training and rest days.
• Only if you train. Creatine without a training stimulus does nothing for muscle.
• Safety: decades of data at 5 g/day. It will raise serum creatinine on a basic metabolic panel, which is not kidney damage but a byproduct of more creatine in the body — flag it on your lab requisition so the lab and your provider don't misread it.

Atrophy is a nervous-system problem too

Muscle and strength loss after inactivity isn't only the muscle wasting — the nerve-to-muscle connections themselves atrophy, and rebuilding them takes time. Practical implication: consistency beats intensity. Two mediocre sessions a week beats one excellent session followed by a two-week gap. Even brief, low-load activity during periods you can't train properly preserves the neural side and makes coming back faster.

Sources

• The Most Effective Weight Training, Cardio & Nutrition for Women — Dr. Lauren Colenso-Semple on the Huberman Lab podcast. YouTube — primary source for everything on this page.
• Dr. Lauren Colenso-Semple's research on training and hormonal cycles — search PubMed: "Colenso-Semple LM" for the underlying menstrual-cycle / oral-contraceptive trial data.
• Schoenfeld BJ et al. The "Anabolic Window" — broader meta-analysis context. PubMed — the timing-of-protein evidence.
• Kreider RB et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation. PubMed — creatine dosing and long-term safety.