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Advanced Pedaling Technique: Efficiency Analysis of Circular vs. Square Pedaling

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Advanced Pedaling Technique: Efficiency Analysis of Circular vs. Square Pedaling

For Taiwanese road cycling enthusiasts, whether you’re tackling the long climbs of Wuling or launching a weekend attack up Fengguizui, the degree of scientific training often determines whether you can break your personal best (PB). This article will take a systematic, actionable approach to help you deeply understand the sport science principles behind “advanced pedaling technique,” and combine Taiwan’s local riding environment, events (such as the Taiwan KOM Challenge), and climate conditions to provide a training framework that can truly be put into practice.

Many riders’ biggest blind spot in training is mistaking “fatigue” for “effectiveness.” In reality, performance improvement comes from the complete cycle of Stimulus → Fatigue → Recovery → Supercompensation. If you simply keep accumulating fatigue without structured intensity distribution and recovery planning, your body will only remain in a state of fatigue accumulation, ultimately leading to stagnant or even declining performance. The goal of this article is to help you build a training framework where you “know why you’re training this way.”

Next, we’ll start with the physiological mechanisms, then gradually move into actual workout plans, data interpretation, Taiwan route applications, common mistakes, and long-term planning—content that is substantial and directly applicable to your next training cycle.

1. The Underlying Exercise Physiology

To understand any cycling training method, you must first return to the body’s three energy systems:

Energy System Primary Fuel Duration Training Focus
Phosphagen System (ATP-PCr) Phosphocreatine 0–10 sec Sprints, explosive power
Glycolytic System (Anaerobic Glycolysis) Muscle glycogen 10 sec–2 min High-intensity intervals, attacks
Aerobic System Fat, glycogen, oxygen 2+ minutes Long distance, climbing endurance

For the vast majority of Taiwanese riders, tackling long climbs like Wuling that take one to two hours is dominated by the aerobic system. This is why “Aerobic Base” is considered the foundation of the training pyramid—without a solid aerobic engine, even the strongest anaerobic capacity is merely a flash in the pan.

At the cellular level, long-term aerobic training brings several key adaptations:

  • Increased mitochondrial density and volume: Mitochondria are the cell’s power plants; the more you have, the more ATP you can produce per unit of time.
  • Capillarization: A denser capillary network around the muscles improves oxygen and nutrient delivery efficiency and speeds up metabolic waste clearance.
  • Increased stroke volume: The heart pumps more blood per contraction, which lowers resting heart rate—this is why well-trained riders often have morning heart rates in the 40s.
  • Rightward shift of the lactate threshold (LT): At higher intensities, the body can still maintain lactate production and clearance balance, meaning you can “cruise” at a faster speed.

The value of understanding these mechanisms is: when you know whether a particular workout is stimulating mitochondria or challenging lactate tolerance, you can more precisely judge “whether I should push hard today.” This is the biggest gap between amateur riders and those who just ride casually.

2. Core Methods and Implementation Steps

2-1 Establish Your Baseline Data First

The first step in any scientific training is quantifying your current status. We recommend obtaining at least the following data:

  1. FTP (Functional Threshold Power): Can be estimated via a 20-minute test (average power × 0.95) or a Ramp Test. This is the anchor point for all your power zones.
  2. Maximum heart rate and resting heart rate: Maximum heart rate should ideally be measured during an actual hard climb, rather than using the rough 220-minus-age formula.
  3. Body weight and power-to-weight ratio (W/kg): For long climbs like Wuling, W/kg is almost the decisive metric. A 65 kg rider with an FTP of 260W (4.0 W/kg) will be significantly faster on pure climbs than an 80 kg rider with an FTP of 280W (3.5 W/kg).

2-2 Power Zone Reference

Using FTP as the 100% baseline, the commonly used seven zones (Coggan model) are as follows:

Zone Name %FTP Subjective Feel Training Purpose
Z1 Active Recovery <55% Very easy, can chat Recovery, lactate clearance
Z2 Endurance 56–75% Easy, steady breathing Aerobic base, fat burning
Z3 Tempo 76–90% Slightly breathless, short sentences Muscular endurance, aerobic efficiency
Z4 Threshold 91–105% Breathless, hard to talk Raising FTP
Z5 VO2max 106–120% Very breathless Maximal oxygen uptake
Z6 Anaerobic 121–150% Near limit Anaerobic capacity, attacks
Z7 Neuromuscular >150% All-out Sprinting, explosive power

2-3 A Sample Weekly Schedule You Can Execute

Using an advanced rider who can train 8–10 hours per week as an example:

  • Monday: Rest or 30 minutes of Z1 active recovery on the rollers.
  • Tuesday: Threshold intervals—after a 15-minute warm-up, do 3 sets × 10 minutes at Z4 (5 minutes of Z1 rest between sets).
  • Wednesday: 90 minutes of pure Z2 aerobic riding, maintaining a cadence of 85–95 rpm.
  • Thursday: VO2max intervals—5 sets × 4 minutes at Z5 (4 minutes of Z1 between sets).
  • Friday: Rest or an easy recovery ride.
  • Saturday: Long ride, 3–4 hours, with Tempo climbing on Wuling.
  • Sunday: 2 hours of Z2 social riding, with some technique practice thrown in.

The philosophy of this schedule is “Polarized Training”: approximately 80% of training volume falls in easy Z1–Z2, and 20% falls at high intensity Z4 and above, deliberately avoiding the gray zone of Z3 where you’re “neither tired enough nor easy enough.” Extensive research shows that this distribution is the most efficient way to improve endurance performance.

3. Practical Application on Taiwan’s Local Routes

Theory aside, let’s put this back into Taiwan’s real riding scenarios.

Wuling—The Best Training Ground for Long-Climb Endurance

Wuling is a classic arena for testing your aerobic engine and pacing ability. The most common mistake first-timers make is going out too hard: pushing power into Z4 and above before you’ve settled in, causing your muscles to blow up prematurely in the middle and later stages, forcing you to walk or stop for long periods. The correct approach is to set your target power near the “overall average power” you can sustain (usually slightly below FTP, depending on climb length), and strictly control it with a power meter or heart rate monitor, saving the “heroics” for the final three kilometers.

Taipingshan and the East Route to Wuling—A Combined Test of Intensity and Technique

  • On Taipingshan, you can practice Tempo (Z3) climbing, building the muscular endurance to sustain sub-threshold output over long periods.
  • On the East Route to Wuling, the winding, rolling terrain is ideal for practicing cornering weight shifts and re-acceleration out of corners, which is crucial for events like the Taiwan KOM Challenge.

Local Considerations for Climate and Nutrition

Taiwan’s summers are hot and humid, with flatland temperatures often exceeding 35°C. Heat dissipation is a severely underestimated limiting factor. High temperatures cause heart rate to run noticeably higher at the same power output (cardiovascular drift). If you stubbornly pace by heart rate in these conditions, you’ll end up undertraining. We recommend using power as the primary metric and heart rate as secondary during summer long rides, supplementing with electrolyte-containing fluids every 15–20 minutes, and consuming 60–90 grams of carbohydrates per hour to avoid “bonking.”

In winter, at elevations above 3,000 meters on Wuling, temperatures can approach 0°C, making warmth and downhill wind chill another aspect that requires serious planning.

4. Data Interpretation and Advanced Monitoring

Once you start accumulating training data (the Giant or Garmin ecosystem is recommended), you can manage training load with more objective metrics. The three most commonly used concepts:

Metric Full Name Meaning
TSS Training Stress Score Total stress score of a single workout, combining intensity and duration
CTL Chronic Training Load Long-term (42-day exponentially weighted) training load, representing “fitness”
ATL Acute Training Load Short-term (7-day) training load, representing “fatigue”
TSB Training Stress Balance CTL − ATL, representing “form / freshness”

Practical interpretation principles:

  • Gradual CTL increase: Keep weekly growth within 5–8 TSS/day; rising too fast is a precursor to injury and overtraining.
  • Positive TSB: Indicates fresh form, suitable for racing or testing; athletes typically deliberately push TSB to +5 to +25 before a race.
  • Prolonged deep negative TSB: If it stays below −30 for several consecutive weeks, be highly alert to overreaching/overtraining.

Beyond load data, don’t overlook heart rate variability (HRV) and morning resting heart rate. When HRV is consistently low, morning pulse is abnormally elevated, and sleep quality declines, these are your body’s “I haven’t recovered yet” signals—worth heeding more than any rest day scheduled in a training plan.

Common Data Pitfalls

  1. Overestimating FTP: Setting training zones based on a single test performed in excellent condition, causing every workout to be overloaded.
  2. Only looking at average power, ignoring variability: The same 200W average, but with fluctuating “sawtooth power,” exacts a far higher physiological cost than steady output—this is precisely why NP (Normalized Power) exists.
  3. Ignoring altitude and temperature context: 220W at 3,000 meters on Wuling carries a far greater physiological cost than 220W at sea level, due to lower oxygen availability.

5. Common Mistakes and How to Fix Them

Based on long-term observation of Taiwanese cyclists’ training patterns, the following mistakes are the most widespread and the ones you should most take to heart:

  1. Moderate intensity every day (Junk Miles): Every ride is “somewhat tiring but not stimulating enough.” Over time, you neither build aerobic base nor develop high-intensity capacity. Fix: Strictly separate “easy days should be truly easy, hard days should be truly hard.”

  2. Neglecting recovery: Treating rest days as laziness and forcing yourself to log rides every day. Fix: Recovery is part of training; supercompensation happens during rest, not during training.

  3. Equipment first, training second: Spending over a hundred thousand NT$ upgrading carbon wheels, yet unwilling to invest time in structured workouts. Fix: For amateur riders, the engine (your body) has far more room for improvement than the equipment.

  4. Only training what you’re good at: If you climb well, you only climb; if your sprint is weak, you never practice sprinting. Fix: Use a pre-season fitness test to identify weaknesses and target them specifically.

  5. Overtraining before a race: Still piling on volume the week before a race, then showing up on race day carrying full fatigue. Fix: Do a “taper” 7–14 days before the race—cut volume in half, retain a small amount of high-intensity stimulus, and let your body peak on race day.

Injury Prevention Reminder

Although cycling is a low-impact sport, patellofemoral pain syndrome (PFPS), iliotibial band syndrome (ITBS), and lower back pain are still very common, mostly stemming from improper bike fitting or a sudden spike in training volume. Any new training plan should follow the “progressive overload principle,” and persistent pain should be addressed early rather than “riding through it.”

6. Putting It Into Your Long-Term Plan

No matter how well-designed a single workout is, its benefits are diminished if it isn’t placed within a periodization framework. A typical annual macrocycle can be divided into:

  • Base Phase (8–12 weeks): Primarily high-volume Z2 aerobic work to build the engine, paired with strength training and skill refinement.
  • Build Phase (6–8 weeks): Gradually introduce threshold and VO2max intervals to enhance event-specific capacity.
  • Peak Phase (2–3 weeks): High intensity, low volume, with tapering scheduled so form peaks at the target event.
  • Transition / Recovery Phase (2–4 weeks): Deliberately reduce load after the season ends to recharge mentally and physically, avoiding long-term accumulation leading to burnout.

Map this framework onto Taiwan’s race calendar: if your goal is the autumn Taiwan KOM Challenge, then summer is your build phase and early autumn enters your peak phase. This sequencing allows your hard training to pay off as results on the most critical day.

Recommendations for Riders of Different Levels

Level Weekly Hours Focus
Beginner 4–6 hours Build riding habits, aerobic base, fundamental skills
Intermediate 8–12 hours Structured intervals, periodization, data management
Competitive 12–18 hours Specialization, race simulation, refined tapering

7. FAQ

Q1: I don’t have a power meter. Can I still use this approach?
Yes. Although power is the most precise training tool, you can still use “heart rate + rating of perceived exertion (RPE)” as a substitute. Heart rate responds slowly and is easily affected by temperature and fatigue, so pairing it with RPE (self-rated on a 1–10 scale) makes it more reliable.

Q2: I can only train three times a week. How should I arrange it for maximum effectiveness?
A recommended combination is “one long aerobic ride + one threshold/VO2max interval session + one moderate tempo ride,” concentrating your limited time on the highest return-on-investment stimuli, while ensuring sufficient recovery between sessions.

Q3: How long until I see progress from training?
Physiological adaptations typically require 6–8 weeks of consistent stimulus before they clearly show up in the data. Patience is the most underrated ability in endurance sports—avoid testing FTP every week and doubting yourself.

Q4: Can indoor trainers and outdoor riding replace each other?
Indoor trainers (such as the Merida smart roller) have an advantage in “precisely controlling intensity,” making them especially suitable for intervals; outdoor riding is irreplaceable for practicing bike handling, pacing, and mental toughness. The ideal approach is to use both as complements, not to choose one over the other.

Conclusion

Returning to the core of this article: “advanced pedaling technique” is not some magical training plan or expensive equipment, but a long-term mindset of “understanding principles → quantifying your current state → structured execution → data feedback → continuous adjustment.” The next time you ride up Wuling’s long climbs, I hope you won’t just grit your teeth by feel, but will clearly know which energy system you’re training at that moment, why you’re pacing this way, and how this ride fits into the blueprint of your entire season.

Training is a long-term dialogue with yourself. May you ride smarter, healthier, and faster on every road in Taiwan. Before heading out next time, ask yourself one question: “What’s the purpose of this ride today?” If you can answer it clearly, you’ve already outperformed most riders.


This article is for training knowledge sharing. Individual training plans should still be adjusted according to personal fitness, health conditions, and professional coach recommendations. If you have cardiovascular disease or existing injuries, please consult a physician before starting any high-intensity training.

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