Section 201 of 440
Complete canonical tutorial. This reader section contains the same teaching body as PWR-018 · Anaerobic work capacity. Open the Power dossier.
PWR-018 · SUPERVISED full tutorial
Complete fixed short cycle bouts without confusing work, lactate and capacity
Anaerobic work capacity concerns high-intensity work above a declared aerobic reference in a specific test. This lesson teaches a provider-controlled repeated-cycle fixture: use the same bike setup, accelerate on the cue, complete each fixed 10-second bout, stop pedalling hard exactly on time, recover for the fixed interval and repeat only the authorised bouts. Peak, mean and total work are recorded; lactate is never treated as a direct capacity meter. This repeated-cycle method treats each ten-second power trace as a time series. The provider inspects launch latency, peak timestamp, mean power, ten-second work and end-power decay for every bout. Total work is the sum of valid traces, whereas decrement describes how output changes across the set; the two cannot be exchanged. An early start, missed stop, saddle lift or resistance fault invalidates that bout. Recovery mode stays passive for the full 80 seconds, and a fifth effort never appears simply to replace an unfavourable trace.
1 · Permission and limits
Know exactly what you may do
2 · Get ready
Gather what you need and check the starting conditions
What you need
- Calibrated cycle ergometer capable of recording power and work
- Visible or audible 10-second work and recovery timer
- Provider-selected resistance setting
- Symptom and recovery monitoring tools
- A repeated-bout worksheet containing ergometer setup, resistance, bout and recovery timestamps, work from every bout, validity, symptoms and the declared summary calculation.
Before you start
- Confirm bike fit, resistance model, work duration, number of bouts and exact recovery interval.
- Report cardiovascular, metabolic, neurological or musculoskeletal conditions, illness and prior adverse response to high-intensity effort.
- Practise immediate reduction from hard pedalling to the declared recovery mode.
- Complete the ergometer, resistance, bout and recovery fields before warm-up. Do not begin until the provider can reproduce the whole test from the protocol card without filling in a missing setting by guesswork.
- Rehearse starting on the cue and stopping the pedals safely at the exact endpoint before the fixed repeated-bout protocol begins.
3 · The method
Follow these steps in order
- Lock the test model
Record the bike, fit, resistance rule, 10-second bout, bout count and recovery. Do not change resistance after seeing an early score.
Why: Anaerobic estimates are protocol-specific; this preserves the anaerobic work capacity rule for 'Lock the test model'.
Check: All configuration fields are complete before warm-up.
- Warm up and rehearse
Complete the provider's progressive warm-up, including only the authorised short accelerations, then use the full pre-test rest.
Why: The first scored bout should not also teach the start.
Check: The learner follows start and stop cues without delay.
- Start on the cue
From the prescribed cadence or stationary start, accelerate only when cued and keep the body in the recorded position.
Why: A rolling start or early effort changes peak power.
Check: Timing and power recording begin at the declared event.
- Work for the exact duration
Pedal as the provider instructs for 10 seconds while keeping feet secured and posture controlled; do not stop early because power falls.
Why: The fixed duration defines the work sample.
Check: A complete power trace exists for all 10 seconds.
- Stop hard work exactly
At the stop cue, reduce resistance or effort into the declared recovery; do not add a final stroke or coast unpredictably.
Why: Recovery timing begins at a defined endpoint.
Check: Power falls into the recovery range promptly.
- Recover in the fixed mode
Use the prescribed passive or easy-pedalling recovery and wait for the full timed interval. Report symptoms without changing the next start.
Why: Recovery mode and duration alter repeated performance.
Check: Every bout begins after the same recovery.
- Report work and decrement
Record peak, mean and total work for each valid bout and the predeclared decrement. Keep lactate, heart rate and effort separate.
Why: No single marker is a universal anaerobic-capacity score.
Check: The log shows raw bout data and the exact calculation.
- Segment each power trace
For every ten-second bout, mark cue, first power rise, peak timestamp, mean-power window and exact stop. Flag cadence dropout, saddle lift, resistance fault or data gap before calculating work.
Why: Trace segmentation distinguishes physiological decline from timing and equipment errors.
Check: Every retained bout contains a complete cue-to-stop trace with no unresolved validity flag.
- Separate total work from decrement
Sum kilojoules from all valid bouts for total work, then apply the predeclared decrement formula to the bout sequence. Report both numbers and the individual trace values.
Why: Identical totals can arise from very different peak and fade patterns.
Check: Another reader can reproduce total kilojoules and decrement from the four stored bouts.
4 · Worked example
See the whole method used once
Scenario
An exercise physiologist prescribes four 10-second cycle bouts with 80 seconds of passive recovery at a provider-selected resistance.
Walkthrough
- The learner reproduces bike fit and completes the progressive warm-up.
- Bouts record 6.2, 5.9, 5.6 and 5.5 kJ; each lasts exactly 10 seconds.
- The learner uses the full 80-second passive recovery and reports leg effort after each bout.
- A fifth bout is not added even though the learner asks to improve the total.
- The provider calculates best, mean, total and the predeclared decrement from the four valid traces.
- Trace segmentation confirms prompt launches and exact ten-second endpoints; bout three shows lower mean power but no cadence dropout or resistance fault.
- The four valid work values sum to 23.2 kJ, while the provider calculates decrement separately from the declared formula rather than substituting the total.
- Peak timestamps, end-power values and 80-second passive-recovery logs remain attached to each bout for later interpretation.
Result
The result describes repeated 10-second cycle work under fixed recovery. It is not a direct measure of a universal anaerobic store, and a lactate value would not replace the work data.
5 · Right and wrong
Compare correct or safer execution with the common wrong version
| Moment | Right / safer | Wrong / riskier | Why it matters |
|---|---|---|---|
| Start: Anaerobic work capacity checkpoint | Use the same stationary or rolling start each time. | Begin pedalling hard before the cue. | Peak and total work become incomparable. |
| Duration: Anaerobic work capacity checkpoint | Complete exactly 10 seconds. It is correct when the learner follows start and stop cues without delay. | Stop when the legs feel finished or extend a good bout. | The work interval changes. That changes work above a declared reference or repeated high-intensity work in a fixed validated test. It is no longer the same test. |
| Recovery: Anaerobic work capacity checkpoint | Use the full fixed mode and time. | Walk, pedal or shorten rest differently between bouts. | Recovery changes the next performance. That changes work above a declared reference or repeated high-intensity work in a fixed validated test. It is no longer the same test. |
| Data: Anaerobic work capacity checkpoint | Keep raw work for every bout. | Report only the best peak; it breaks the 'Work for the exact duration' execution rule. | Mean, total and decrement can tell different stories. |
| Biomarker: Anaerobic work capacity checkpoint | Treat lactate as a separate context-sensitive marker. | Call lactate the anaerobic-capacity meter; it breaks the 'Stop hard work exactly' execution rule. | It is not a direct capacity measurement. |
| Reading repeated-cycle output | Keep peak timing, mean power, work and end-power decay as distinct trace features. | Call the highest instantaneous wattage the entire anaerobic result. | A brief peak cannot describe ten-second work or repetition-to-repetition decay. |
| Responding to an invalid bout | Flag the trace and let the provider decide whether the protocol ends. | Automatically add a fifth maximal effort to replace it. | An extra bout changes total exposure, sequence and decrement mathematics. |
6 · Common mistakes
Spot the error and apply the correction
| Mistake | Fix |
|---|---|
| Resistance is changed after bout one. | Lock the resistance rule before warm-up and treat a change as a new test. |
| The recovery clock starts late. | Start it at the exact hard-work stop cue. |
| A fifth bout is added to rescue a score. | Use only the predeclared bout count. |
| Only peak power is retained. | Keep full traces and compute best, mean, total and decrement. |
| Lactate change is called performance improvement. | Require actual task work and report biomarkers separately. |
| Kilojoules and decrement percentage are used as interchangeable scores. | Display every bout, summed work and the exact decrement equation in separate fields. |
| A saddle lift during the peak is ignored because the wattage is large. | Apply posture validity before retaining peak, mean or work from that trace. |
7 · Practice
Turn the steps into a usable skill
First session
- Provider confirms readiness and locks the cycle protocol.
- Complete progressive warm-up and two brief submaximal starts.
- Rest fully, then complete the authorised repeated-bout test.
- Use the exact recovery mode and interval after every bout.
- Cool down and review raw work, decrement, symptoms and recovery.
- Annotate a sample ten-second trace with launch, peak timestamp, mean window, end power and stop cue before riding.
- Rehearse entering exactly 80 seconds of passive recovery without pedalling, stretching or changing the cycle setup.
Repeat plan
A qualified exercise professional controls intensity, resistance, bouts, recovery and retest timing. Maximal or exhaustion protocols are never progressed from this page; compare only identical tests after full recovery.
Progress when
- All bouts and recoveries meet timing and posture rules.
- Mean or total work improves beyond test noise without a worse decrement or symptom response.
- The learner recovers within the provider's predeclared criteria.
- Summed valid work improves while launch latency, posture, end-power trace and decrement remain within declared limits.
Do not progress when
- The score improves only because resistance, start, bout number or recovery changed.
- Power traces become technically invalid or recovery is incomplete.
- Chest symptoms, dizziness, severe nausea, unusual breathlessness, pain or confusion appears.
- A resistance fault, timing gap, cadence dropout or unresolved trace invalidity prevents reproducible calculation.
8 · Check the result
Measure what changed
Work above a declared reference or repeated high-intensity work in a fixed validated test
How: Lock ergometer, resistance, start, bout duration/count and recovery; retain power traces and compute best, mean, total and predeclared decrement. Segment cue, launch, peak timestamp, mean window, end power and stop for each bout; save resistance and posture flags. Report total work and decrement separately.
Good result: All bouts are valid and repeatable, and work improves beyond measurement error without worse symptoms or altered protocol. All four traces remain valid and complete, with reproducible total work and decrement calculations under identical passive recovery.
This does not prove: It does not prove a universal anaerobic capacity, sport transfer, lactate tolerance or safe independent high-intensity training.
Self-check
- Can you state resistance, work time, bout count and recovery exactly?
- Did every recovery begin at the same stop event?
- Are peak, mean, total and decrement all visible?
- Can you explain why lactate is not a direct capacity meter?
- Can you mark launch, peak timestamp, mean window, end power and stop on a ten-second trace?
- Can you sum 6.2, 5.9, 5.6 and 5.5 kJ to 23.2 kJ without calling that sum the decrement?
9 · Stop, adapt or get help
Keep the safety boundary practical
Stop and get help
- Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
- Stop for sharp musculoskeletal pain, equipment/foot-strap failure, loss of posture or inability to enter the recovery mode safely.
- End the maximal work bout for presyncope, chest symptoms, abnormal breathing, loss of safe pedalling or an adverse response outside the protocol, and activate the laboratory's emergency plan.
Accessibility and adaptations
- Use a provider-selected arm-crank or other accessible high-intensity mode with its own validation and baseline.
- Provide visual, spoken and tactile timing cues and keep needed positioning supports.
- Give resistance-setting and sprint-start instructions through a demonstration, countdown lights or audible count, recording any altered signal beside peak and mean power.
10 · Evidence and limits
Why these instructions are here
- primary research
Repeated-sprint studies show that best, mean, total and decrement can change differently and must remain separate.
Performance and physiological responses to repeated-sprint exercise: a novel multiple-set approach - primary research
A high-intensity interval protocol can change anaerobic and aerobic outcomes differently from moderate endurance work in a specific sample.
Effects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and VO2max
Limits
- This lesson supplies no self-directed high-intensity dose.
- Cycle work does not automatically transfer to running or sport.
- Biomarkers such as lactate do not replace direct performance measurement.
Open the complete canonical research register
- Primary empirical supportLimiting / contraryPerformance and physiological responses to repeated-sprint exercise: a novel multiple-set approach
Fabio R. Serpiello; Michael J. McKenna; Nigel K. Stepto; David J. Bishop; Robert J. Aughey · 2011 · Primary research
- Primary empirical supportLimiting / contraryEffects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and VO2max
Izumi Tabata; Kouji Nishimura; Motoki Kouzaki; Yuusuke Hirai; Futoshi Ogita; Motohiko Miyachi; Kaoru Yamamoto · 1996 · Primary research
- Primary empirical supportLimiting / contraryShort-term sprint interval versus traditional endurance training: similar initial adaptations in human skeletal muscle and exercise performance
Martin J. Gibala; Jonathan P. Little; Martin van Essen; Geoffrey P. Wilkin; Kirsten A. Burgomaster; Adeel Safdar; Sandeep Raha; Mark A. Tarnopolsky · 2006 · Primary research
- Primary empirical supportLimiting / contrarySimilar metabolic adaptations during exercise after low volume sprint interval and traditional endurance training in humans
Kirsten A. Burgomaster; Krista R. Howarth; Stuart M. Phillips; Mark Rakobowchuk; Maureen J. MacDonald; Sean L. McGee; Martin J. Gibala · 2008 · Primary research
- Primary empirical supportLimiting / contraryEffects of sprint interval training on substrate oxidation in adults living with and without obesity: The i-FLEX study
Benjamin H. Colpitts; Ken Seaman; Ashley L. Eadie; Keith R. Brunt; Danielle R. Bouchard; Martin Sénéchal · 2021 · Primary research
- Limiting / contraryOfficial boundary contextWHO guidelines on physical activity and sedentary behaviour
World Health Organization · 2020 · Official guidance
Read the complete evidence interpretation on the Power dossier.
Tutorial delivery controls
Learn, adapt, troubleshoot and resume
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Step-by-step learner mode
Each activity includes its success check, a nearby accessible alternative and an “I’m stuck” correction path. Alternatives preserve the target where possible; when they change the task, Titan labels them as related rather than equivalent.
Lock the test model
Record the bike, fit, resistance rule, 10-second bout, bout count and recovery. Do not change resistance after seeing an early score.
Anaerobic estimates are protocol-specific; this preserves the anaerobic work capacity rule for 'Lock the test model'.
All configuration fields are complete before warm-up.
I’m stuck on this step
Reset: Re-read this authored instruction — “Record the bike, fit, resistance rule, 10-second bout, bout count and recovery. Do not change resistance after seeing an early score.” — and its success check, then attempt only this step.
Possible snag: Resistance is changed after bout one.
Correction: Lock the resistance rule before warm-up and treat a change as a new test.
Possible snag: A fifth bout is added to rescue a score.
Correction: Use only the predeclared bout count.
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Warm up and rehearse
Complete the provider's progressive warm-up, including only the authorised short accelerations, then use the full pre-test rest.
The first scored bout should not also teach the start.
The learner follows start and stop cues without delay.
I’m stuck on this step
Reset: Re-read this authored instruction — “Complete the provider's progressive warm-up, including only the authorised short accelerations, then use the full pre-test rest.” — and its success check, then attempt only this step.
Possible snag: The result from “Complete the provider's progressive warm-up, including only the authorised short accelerations, then use the full pre-test rest.” does not yet meet this declared check: The learner follows start and stop cues without delay.
Correction: Return to the start of “Warm up and rehearse”, reduce complexity or pace, and repeat only the part needed to satisfy: “The learner follows start and stop cues without delay.”
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Start on the cue
From the prescribed cadence or stationary start, accelerate only when cued and keep the body in the recorded position.
A rolling start or early effort changes peak power.
Timing and power recording begin at the declared event.
I’m stuck on this step
Reset: Re-read this authored instruction — “From the prescribed cadence or stationary start, accelerate only when cued and keep the body in the recorded position.” — and its success check, then attempt only this step.
Possible snag: The result from “From the prescribed cadence or stationary start, accelerate only when cued and keep the body in the recorded position.” does not yet meet this declared check: Timing and power recording begin at the declared event.
Correction: Return to the start of “Start on the cue”, reduce complexity or pace, and repeat only the part needed to satisfy: “Timing and power recording begin at the declared event.”
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Work for the exact duration
Pedal as the provider instructs for 10 seconds while keeping feet secured and posture controlled; do not stop early because power falls.
The fixed duration defines the work sample.
A complete power trace exists for all 10 seconds.
I’m stuck on this step
Reset: Re-read this authored instruction — “Pedal as the provider instructs for 10 seconds while keeping feet secured and posture controlled; do not stop early because power falls.” — and its success check, then attempt only this step.
Possible snag: The result from “Pedal as the provider instructs for 10 seconds while keeping feet secured and posture controlled; do not stop early because power falls.” does not yet meet this declared check: A complete power trace exists for all 10 seconds.
Correction: Return to the start of “Work for the exact duration”, reduce complexity or pace, and repeat only the part needed to satisfy: “A complete power trace exists for all 10 seconds.”
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Stop hard work exactly
At the stop cue, reduce resistance or effort into the declared recovery; do not add a final stroke or coast unpredictably.
Recovery timing begins at a defined endpoint.
Power falls into the recovery range promptly.
I’m stuck on this step
Reset: Re-read this authored instruction — “At the stop cue, reduce resistance or effort into the declared recovery; do not add a final stroke or coast unpredictably.” — and its success check, then attempt only this step.
Possible snag: The recovery clock starts late.
Correction: Start it at the exact hard-work stop cue.
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Recover in the fixed mode
Use the prescribed passive or easy-pedalling recovery and wait for the full timed interval. Report symptoms without changing the next start.
Recovery mode and duration alter repeated performance.
Every bout begins after the same recovery.
I’m stuck on this step
Reset: Re-read this authored instruction — “Use the prescribed passive or easy-pedalling recovery and wait for the full timed interval. Report symptoms without changing the next start.” — and its success check, then attempt only this step.
Possible snag: The result from “Use the prescribed passive or easy-pedalling recovery and wait for the full timed interval. Report symptoms without changing the next start.” does not yet meet this declared check: Every bout begins after the same recovery.
Correction: Return to the start of “Recover in the fixed mode”, reduce complexity or pace, and repeat only the part needed to satisfy: “Every bout begins after the same recovery.”
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Report work and decrement
Record peak, mean and total work for each valid bout and the predeclared decrement. Keep lactate, heart rate and effort separate.
No single marker is a universal anaerobic-capacity score.
The log shows raw bout data and the exact calculation.
I’m stuck on this step
Reset: Re-read this authored instruction — “Record peak, mean and total work for each valid bout and the predeclared decrement. Keep lactate, heart rate and effort separate.” — and its success check, then attempt only this step.
Possible snag: Only peak power is retained.
Correction: Keep full traces and compute best, mean, total and decrement.
Possible snag: Lactate change is called performance improvement.
Correction: Require actual task work and report biomarkers separately.
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Segment each power trace
For every ten-second bout, mark cue, first power rise, peak timestamp, mean-power window and exact stop. Flag cadence dropout, saddle lift, resistance fault or data gap before calculating work.
Trace segmentation distinguishes physiological decline from timing and equipment errors.
Every retained bout contains a complete cue-to-stop trace with no unresolved validity flag.
I’m stuck on this step
Reset: Re-read this authored instruction — “For every ten-second bout, mark cue, first power rise, peak timestamp, mean-power window and exact stop. Flag cadence dropout, saddle lift, resistance fault or data gap before calculating work.” — and its success check, then attempt only this step.
Possible snag: A saddle lift during the peak is ignored because the wattage is large.
Correction: Apply posture validity before retaining peak, mean or work from that trace.
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Separate total work from decrement
Sum kilojoules from all valid bouts for total work, then apply the predeclared decrement formula to the bout sequence. Report both numbers and the individual trace values.
Identical totals can arise from very different peak and fade patterns.
Another reader can reproduce total kilojoules and decrement from the four stored bouts.
I’m stuck on this step
Reset: Re-read this authored instruction — “Sum kilojoules from all valid bouts for total work, then apply the predeclared decrement formula to the bout sequence. Report both numbers and the individual trace values.” — and its success check, then attempt only this step.
Possible snag: Kilojoules and decrement percentage are used as interchangeable scores.
Correction: Display every bout, summed work and the exact decrement equation in separate fields.
Stop / get help: Stop for chest pain, faintness, severe breathing difficulty, confusion, uncontrolled vomiting or a new neurological symptom.
Correct versus incorrect execution
These accessible process diagrams are built from the tutorial’s own right/wrong teaching. They are not anatomical illustrations and do not add technique beyond the canonical tutorial.
Use the same stationary or rolling start each time.
Begin pedalling hard before the cue.
Complete exactly 10 seconds. It is correct when the learner follows start and stop cues without delay.
Stop when the legs feel finished or extend a good bout.
Use the full fixed mode and time.
Walk, pedal or shorten rest differently between bouts.
Keep raw work for every bout.
Report only the best peak; it breaks the 'Work for the exact duration' execution rule.
Treat lactate as a separate context-sensitive marker.
Call lactate the anaerobic-capacity meter; it breaks the 'Stop hard work exactly' execution rule.
Keep peak timing, mean power, work and end-power decay as distinct trace features.
Call the highest instantaneous wattage the entire anaerobic result.
Flag the trace and let the provider decide whether the protocol ends.
Automatically add a fifth maximal effort to replace it.
Method-structure checklist
10 of 10 structural checks present
- Ordered, Power-specific instructions — present
- Every activity has a success check — present
- Materials or supplied records are declared — present
- Measurement or assessment rule is present — present
- Tutorial-specific troubleshooting is present — present
- Stopping or escalation boundary is present — present
- Every activity has an adjacent alternative — present
- Correct-versus-incorrect comparison is present — present
- Evidence context is bound to the Power record — present
- Planning metadata is present — present
The method-readiness band and presence checklist assess tutorial presentation and are separate from evidence quality for the underlying Power. They are automated editorial aids, not human approval.
Manual editorial sign-off: Pending. This tutorial must not display a human-approved state until an identified editor signs the exact content hash.