Science · Intensity & session design

Strength for cyclists — heavy ≥80% 1RM; efficiency and anaerobic power

Off-bike heavy strength (≥80% 1RM, 1–3×/wk, 5–25 wk development) improves cycling efficiency, anaerobic power, and TT/TTE. It does not meaningfully raise VO2max, pVO2max, MMSS/threshold, or anaerobic capacity. GRADE certainty is low. In-season 1×/wk is maintenance, not a development dose. On-bike high-force torque blocks are a documented gym-access substitute — default remains ≥80% 1RM off-bike.

Last reviewed · Part of Koyaro’s public science knowledge base — the same method notes the coaching engine cites.

Athlete summary

During base, Koyaro’s strength template is heavy (≥80% 1RM), about 2 sessions/week — inside the evidence band of 1–3×/week for 5–25 weeks. That kind of lifting is associated with better cycling efficiency, anaerobic power, and time-trial / time-to-exhaustion performance.

It is not a VO2max or threshold (MMSS) hack. Meta-analysis certainty is GRADE low — useful signal, not a guarantee.

In peak / taper, you keep one heavy, low-volume session per week (~every 7–10 days). That is maintenance, deliberately below the development dose so bike intensity can lead.

What the engine locks

ConstraintEngine behaviorCitation
Heavy loadMax-strength + maintenance intensity floor ≥80% 1RMllanos-lagos-2026-heavy-strength
Development frequencyMax-strength 2×/wk (inside 1–3×/wk)same
Development durationLiterature window 5–25 wk (documented; plan length still from cycling phases)same
Supported outcomesEfficiency, anaerobic power, TT/TTEsame
Never claimVO2max / pVO2max, MMSS / threshold, anaerobic capacitysame
CertaintyGRADE low — say so; do not oversellsame
MaintenancePeak/taper 1×/wk at ≥80% — retain, not developsame + ronnestad-mujika-2014-strength
Periodization shapeAdapt → max strength (base) → power conversion (build) → maintainronnestad-mujika-2014-strength
No gymDocumented on-bike high-force / torque substitute; schedule still skips gym when gym_access=falsebiol-sport-2025-on-bike-rt

What this is not

  • Not a claim that lifting raises VO2max, pVO2max, or sustainable threshold (MMSS), or anaerobic capacity (Llanos-Lagos nulls — GRADE low overall).
  • Not an invented load-progression model or new in-season maintenance scheme — peak/taper keep the existing 1×/wk (~7–10 d) template after evidence review; that sits below the 1–3 development band on purpose.
  • Not a hypertrophy-aesthetic rewrite of the lift library.
  • Not replacing cycling volume with gym work.
  • Not resilience / durability training role — cross-link only.
  • Not fatigued-CP or CHO×durability coupling.
  • Not a parallel planner path — strength stays a PlannedBodySession citizen via body_schedule. On-bike substitute when gym is nil is coach/KB guidance only; gym_access=false still skips gym.

Literature

  • Llanos-Lagos, P., Ramirez-Campillo, R., & Sáez de Villarreal, E. (2026). Heavy strength training effects on physiological determinants of endurance cyclist performance: a systematic review with meta-analysis. European Journal of Applied Physiology, 126, 193–222. doi:10.1007/s00421-025-05883-2
  • Rønnestad, B. R., & Mujika, I. (2014). Optimizing strength training for running and cycling endurance performance: A review. Scandinavian Journal of Medicine & Science in Sports, 24(4), 603–612. (periodization / transfer framing)
  • Biol Sport 2025 — high-intensity on-bike resistance (maximal intended pedal strokes) as a gym-access substitute (doi:10.5114/biolsport.2025.146790)

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