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Hypertrophy

high-frequency training with flexible fasting

v1

Strategies for balancing frequent exercise with time-restricted eating to optimize fat loss and muscle preservation.

Available
fastinghftnutrient-timinghypertrophy

Get an AI coach that uses this skill

FitnessGrid is an AI coach that plans your week and adapts as you go. Install high-frequency training with flexible fasting 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
  • Free to start — no credit card, ~60 seconds to set up

Procedure

  1. Assess Baseline and Goals: Review the user's history and current goals using get_user_history. Identify if the primary objective is fat loss, metabolic health, or muscle maintenance.

  2. Calculate Protein Requirements: Use compute_protein_target to set a daily intake equivalent to 1.6–2.2g of protein per kg of body weight. This high threshold is necessary to offset the "suboptimal" remodeling environment of fasted training.

  3. Establish the Feeding Window:

    • Recommend a flexible 8-hour feeding window (flexTRE).
    • Set the "Anchor Window" by scheduling the primary training sessions toward the end of the fasting period so the post-workout phase (highest MPS sensitivity) aligns with the start of the feeding window.
    • Update these preferences using update_preferences.

  4. Configure Macro Distribution: Use set_user_macro_targets to structure the feeding window:

    • Instate protein boluses of 20–40g every 3–4 hours within the window.
    • For high-frequency or double-session days, ensure carbohydrate intake is prioritized (up to 1.2 g/kg/h if sessions are <4 hours apart).
    • Include a pre-sleep "fasting bridge" of 30–40g of casein protein to maintain overnight muscle protein synthesis.

  5. Design the Training Dosage: Use create_workout to build a schedule based on evidence-based optimal markers:

    • Aim for 4 sessions per week for a minimum of 14 weeks.
    • Keep session duration between 45–60 minutes.
    • Adjust intensity based on timing: Schedule moderate-intensity exercise for fasted states and reserve high-intensity or maximal-effort sessions for during or after the feeding window to avoid hypoglycemia.

  6. Safety and Adherence:

    • Create a note with create_note regarding the 14-week timeline required to see pronounced metabolic benefits.
    • Monitor for signs of glycogen depletion or recovery failure due to the high-frequency nature of the protocol.
    • Advise the user that while TRE is effective for maintenance, maximal hypertrophy may be slightly slower compared to traditional spacing.

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