PWR-013 · Power, Speed & Agility

Reactive strength

Reactive strength is real as a bounded, measurable capability, but the evidence is task- and population-specific. Titan separates improvement in the test from retention, transfer and meaningful function.

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Revision 7T · Full Tutorial Edition · Release manifest · Methodology · Corrections

One source of teaching truth

Canonical Power learning unit · TLU-PWR-013

The learner completes one short provider-set series of bilateral rebounds with consistent contact time, jump height and alignment, then stops on the first control failure.

Canonical Power page
PWR-013 · Reactive strength
Full tutorial
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Practical authority
The tutorial teaches the complete method; qualified supervision controls the specified practical parts.
Current treatment
Full supervised tutorial
Research depth
focused · 3 bound sources
Risk framing
high
Capability self-practice
Qualified supervision is required for the practical method
Pathway membership
Retained external route · SP-HUB-001

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Explanation is not permission.

This dossier explains the evidence and its limits. It is not a diagnosis, personal recommendation, assessment, clearance, performance promise or training programme. Actionable teaching appears only when the canonical Power record explicitly authorises it.

Complete bounded explanation

What this power means.

Capability to develop or express reactive strength in a declared context without inheriting broader claims.

What the current evidence supports

In selected people and declared configurations, reactive strength can be measured and may improve with task-relevant practice; retention, transfer and meaningful value require separate testing.

How to observe or measure it without overclaiming

Predeclare sprint mode, distance/duration, repetitions, recovery, best/mean/total performance and decrement formula; do not collapse these into one stamina score.

Myth

Endless explosive bursts

Metric

Best, mean and total repeated-sprint performance plus a predeclared decrement under fixed recovery

Boundary

The metric is valid only for its declared task and cannot establish universal ability, character, diagnosis, safety or far transfer.

Negative and limiting findings

  • Two distinct training groups improved similarly in a youth soccer trial with no passive control.
  • A fatigue index can remain unchanged while mean or total work improves.

Claims this evidence cannot support

  • Titan proves anyone can develop unlimited or superhuman reactive strength.
  • One test score reveals whole-person capability, health, discipline, potential or worth.
  • Improvement guarantees injury prevention, clinical benefit, occupational readiness or transfer to every real-world task.

Individual tutorial · FULL SUPERVISED TUTORIAL

How to learn this Power now.

The learner completes one short provider-set series of bilateral rebounds with consistent contact time, jump height and alignment, then stops on the first control failure.

  1. Get readyDemonstrate a quiet two-foot landing and hold balance for two seconds before repeated rebound work.
  2. Learn the method7 concrete steps teach the permitted method from start to finish.
  3. See right and wrong5 comparisons show correct or safer execution beside common wrong or riskier choices.
  4. PractiseThe qualified provider controls contact count, height, surfaces, rest and weekly plyometric exposure. Drop height, unilateral work or external load are new higher-risk tasks and require separate teaching and clearance.
  5. Check progressUse the same force plate, arm rule, hop or drop condition, foot marks and validity bands; calculate RSI only after excluding failed contacts.

Authority boundary: Titan teaches the complete method; a qualified person controls the parts that require supervision, clearance, specialist equipment, load, dose or progression. The method is Power-specific; its actionability follows this treatment.

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Related Powers: PWR-009 · PWR-010 · PWR-011 · PWR-012

Direct evidence register

Sources that support—and limit—the claim.

Citation roles are explicit. A source may support existence or trainability while simultaneously limiting transfer, certainty, generalisation or safety.

  1. Primary empirical supportLimiting / contrary
    Performance 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

  2. Primary empirical supportLimiting / contrary
    The Effect of Speed Endurance Versus Core Training on The Repeated Sprint Ability of Youth Male Soccer Players - A Randomized Controlled Trial

    Olavo Maciel; Ricardo Martins; Fábio Y. Nakamura; Pedro Figueiredo; José Afonso; Ivan Baptista · 2024 · Primary research

  3. Limiting / contraryOfficial boundary context
    WHO guidelines on physical activity and sedentary behaviour

    World Health Organization · 2020 · Official authority

Current teaching and evidence boundary

The next gate remains visible.

External confirmation is required before higher-authority use because: a clinical, high-risk or regulated configuration; a supervision or non-attempt boundary.

A Power-specific tutorial is available at /tutorials/pwr-013/. It contains a plain-English method, 7 ordered steps, a worked example, right-versus-wrong comparisons, specific mistakes and corrections, practice, measurement, accessibility, stopping rules and evidence. Its supervised mode remains controlling.