Updated February 1, 2026 09:48AM. Professional road teams now begin structured high-intensity work in December alongside traditional aerobic base mileage, a shift that has moved the sport away from an historic Zone 2–only winter. Coaches and scientists argue this blended approach lets riders hold race-level punch for longer stretches across a 6–9 month season, but it also raises burnout and recovery risks. This piece explains what changed, how teams implement winter intervals, and what riders and coaches should watch for.
Key Takeaways
- Modern pro seasons typically span March–October (some riders begin in January and finish at races such as the Tour of Guangxi in mid-October), requiring sustained form across 6–9 months rather than one summer peak.
- Many WorldTour riders now add 1–2 high-intensity sessions per week through the winter instead of concentrating HIIT in short blocks; this helps maintain VO2 Max and top-end power that can decay within two weeks without stimulus.
- Typical volume during old-school base camps was 25–35 hours per week of mostly Zone 1–2 riding; contemporary programs mix that endurance with torque and VO2 Max intervals to preserve race-specific qualities.
- Common winter sessions include torque work (e.g., 4–10 minute intervals at low cadence) and VO2 Max formats such as 40/20s or 2:1 work-to-rest ratios; real-world examples include 8x torque reps in a 2.5‑hour session and multi-format VO2 sets inside a 4.5‑hour training day.
- Year-round intensity yields faster, more race-ready riders but increases the risk of accumulated fatigue, illness, and mental burnout—particularly among young pros on short contracts.
- Managing intensity as a controlled dose (1–2 HIIT sessions weekly in winter, preserved Zone 2 volume) is a current best-practice to improve long-term performance without collapsing careers.
Background
Fifteen years ago it was common for top riders to treat the off-season as a genuine break: extended holidays, a short 2–4 week off-season, then a January reset with high-volume, low-intensity weeks. Those training blocks often involved prolonged Zone 1–2 riding for many hours per day and a slow build toward a single summer peak—typically aiming for form in July for races like the Tour de France.
That model suited an era when peak performance windows were shorter and calendars were less crowded. But the professional calendar expanded: many riders now race much earlier in the year, and some squads log 60–70 race days instead of 30–35. The consequence is a need for repeatable, race-ready qualities across multiple target events rather than one condensed peak.
Main Event
Teams and coaches have adopted a hybrid winter strategy: retain aerobic base volume while inserting controlled, regular high-intensity work. Rather than a three-week pre-race HIIT block, riders perform 1–2 higher-intensity sessions per week through December, January and beyond. This preserves neuromuscular quickness, lactate clearance, and VO2 Max capacity that otherwise degrade rapidly.
Two recurring high-intensity threads in WorldTour programs are torque intervals and VO2 Max work. Torque sessions emphasize low cadence, high force (for example, repeated 4–10 minute efforts around threshold at ~40–50 rpm), sometimes finishing with short high-cadence surges; one illustrative winter torque session runs 2.5 hours with eight 4‑minute torque efforts punctuated by 30‑second high-cadence bursts.
VO2 Max formats used in winter mirror race demands and can be mixed within a single ride: sets of 4min/2min-off, blocks of 40/20s, 30/15s, and even short sprint repeats. A documented example ran 4.5 hours and combined multiple VO2 formats across the same session to tax both sustained and repeatable high-end output.
Some riders also overlap competitive disciplines with road training—Mathieu van der Poel’s cyclocross winter exemplifies that crossover, producing near-all‑out 60‑minute efforts which are more taxing than classic HIIT but maintain race instincts and explosive capacity for spring road targets.
Analysis & Implications
Physiologically, scattered high-intensity work helps preserve the power-duration curve at the top end: VO2 Max and anaerobic capacity decline faster than base endurance if they aren’t regularly stimulated. Keeping intermittent high-quality sessions slows that decay, enabling riders to contest high-stress moments across a longer season.
Sport-science support has grown accordingly. Teams now rely on power meters, respiratory monitoring, sleep trackers, and nutrition apps to quantify stimulus and recovery. That data-driven approach can help calibrate intensity but also risks obsessive micromanagement that increases stress and can mask overreaching if interpreted without context.
Economically and career-wise, the shift favors riders who can sustain form across many months. More race days mean more exposure and contract value for consistent performers, but it also pressures young athletes to produce early results on short 1–2 year contracts—an environment that can accelerate burnout and shorten careers if load management is poor.
Coaches therefore face a dual mandate: program enough intensity to keep riders competitive across an extended calendar, but dose it conservatively to protect longevity. Practical tools include planned microcycles of intensity, mandated recovery blocks, and individualized progression tied to objective markers rather than calendar dates.
Comparison & Data
| Characteristic | Traditional Base | Modern Base |
|---|---|---|
| Winter Intensity | Low (mostly Zone 1–2) | Low–Moderate with 1–2 HIIT sessions/week |
| Weekly Volume | 25–35 hours (common) | Varies; similar volume but mixed intensity |
| Peak Target | Single summer peak (July) | Multiple peaks across March–Oct (6–9 months) |
| Race Days/Year | ~30–35 | Up to 60–70 for some riders |
The table contrasts the two approaches: modern programs keep endurance volume but deliberately mix in specific high-intensity formats to maintain race readiness. This hybrid model increases the number of opportunities to perform—and the number of risk-exposure days—so teams must balance exposure with planned recovery.
Reactions & Quotes
We view winter intervals as a maintenance tool: a few controlled sessions preserve the high-end qualities riders need when the season lengthens.
Team sports scientist (role)
The science staff perspective underscores that intensity is managed, not maximized, through winter. Teams emphasize measurable markers—power at VO2, neuromuscular response, sleep quality—before increasing load.
The calendar asks us to be ready earlier and longer; that changes how we plan the year, especially for younger riders.
Development team director (role)
Directors note contractual and selection pressures push young pros to show results quickly, which can clash with long-term athlete development if intensity is misapplied.
Unconfirmed
- The exact wattage estimates for Pavel Sivakov’s short bursts (500–600W) are author inferences and not officially published by the team.
- Comprehensive, team-wide winter training prescriptions for every WorldTour squad are not public; programs vary substantially between teams and riders.
- The proportion of pro riders who now perform winter HIIT year-round versus those who still use a concentrated pre-season block has not been quantified in a peer-reviewed dataset.
Bottom Line
The sport has moved from a single-summer-peak model to one that demands sustained race readiness across many months. That has driven a hybrid winter approach: maintain Zone 2 base mileage while inserting 1–2 controlled high-intensity sessions weekly to preserve VO2 Max and explosive power.
Those gains come with management costs—heightened monitoring, careful dose control, and explicit recovery periods are essential to avoid the growing issue of mental and physiological burnout, especially among young riders on short contracts. For most riders, the pragmatic prescription is simple: keep the aerobic base, add targeted intervals sparingly, and prioritize recovery as a performance tool in itself.