
evidence-based split optimization
v1by FitnessGrid
Designs and adjusts weekly training splits using frequency and exercise pairing research to maximize hypertrophy and efficiency.
hypertrophytraining-frequencyprogrammingsupersets
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FitnessGrid is an AI coach that plans your week and adapts as you go. Install evidence-based split optimization and your coach will follow this protocol every week, learn from what you actually do, and adjust on the fly.
- Your coach builds the week from this skill
- Adapts to your actual progress, not a static template
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Procedure
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Assess Current Volume and Frequency
- Review the user's current training history and preferences using
get_user_historyandget_user_preferences. - Identify the current frequency per muscle group. If frequency is only 1x per week, prepare to transition to a 2x-3x weekly frequency.
- Review the user's current training history and preferences using
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Determine the Split Framework
- Based on the user's available training days, select an evidence-based framework:
- 3 days/week: Full Body (Every group hit 3x).
- 4 days/week: Upper/Lower Split (Every group hit 2x).
- 6 days/week: Push/Pull/Legs (Every group hit 2x).
- Target a weekly volume of 10–20 challenging sets per muscle group for hypertrophy, or 6–12 sets for pure strength.
- Based on the user's available training days, select an evidence-based framework:
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Optimize Exercise Pairings
- Apply pairing strategies within the workouts to manage fatigue:
- Agonist-Antagonist: Pair push/pull movements (e.g., Bench Press and Rows) to maintain power and save time.
- Same Muscle Group: Pair exercises (e.g., Squats and Leg Extensions) only as "finishers" at the end of a session to increase metabolic stress.
- Unrelated Groups: Pair primary lifts with low-fatigue movements (e.g., Overhead Press and Calves) for maximal strength on the primary lift.
- Apply pairing strategies within the workouts to manage fatigue:
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Build the Weekly Plan
- Use
find_exercise_candidatesto select movements appropriate for the chosen pairings. - Use
plan_weekto distribute the workouts across the week, ensuring at least 24–48 hours of recovery for full-body routines or 72 hours for PPL sessions. - Ensure "junk volume" is avoided by capping per-session muscle group volume and distributing it across multiple days instead.
- Use
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Refine and Finalize
- Use
create_workoutto populate the specific exercise sets and pairings. - Advise the user that while 10–20 sets is the standard range, they should monitor recovery and adjust toward their individual Maximum Recoverable Volume (MRV).
- Use