# Blood Flow Restriction (Kaatsu) Occlusion Load-Ramp Recovery Coach

Design and monitor a BFR protocol: AOP/LOP-based cuff pressure (40–80%), 20–40% 1RM loads, the classic 30-15-15-15 scheme, volume reduction, elastic-vs-pneumatic guidance, a week-by-week ramp, and a contraindication screen.

> Canonical page: https://elysiatools.com/en/tools/blood-flow-restriction-kaatsu-occlusion-load-ramp-recovery-coach

- **Category:** Fitness

- **Keywords:** bfr, kaatsu, occlusion, aop, lop, 30-15-15-15, low load, cuff pressure, doppler, hypertrophy, rehab, ramp

## Overview

Cuff pressure is prescribed as 40–80% of Doppler-measured AOP (absolute mmHg when supplied), loads sit at 20–40% 1RM under the classic 30-15-15-15 scheme with the cuff inflated throughout, external load is compared against conventional 70% 1RM work, elastic bands get the 7/10-tightness approximation, a week-by-week ramp with deload structures the program, and the contraindication screen refuses to plan for DVT, clotting, uncontrolled hypertension, PAD, unhealed surgery, pregnancy, cancer/lymphedema or neuropathy.

## Inputs

- **Training goal** (select)
- **Limb** (select)
- **Rep protocol** (select)
- **Cuff type** (select)
- **Exercise 1RM (kg)** (number)
- **Doppler-measured AOP (mmHg, 0 = unknown)** (number)
- **Inter-set rest (seconds)** (number)
- **Sessions per week** (number)
- **Program length (weeks)** (number)
- **Health screen (select any that apply)** (select)

## When to use

- Prescribing low-load (20–40% 1RM) strength or hypertrophy training to minimize joint strain while achieving high metabolic stress.
- Designing structured return-to-play or rehab protocols using pneumatic cuffs with Doppler AOP or calibrated elastic wraps.
- Screening athletes or rehabilitation clients for vascular, surgical, or neurological contraindications prior to applying occlusion pressure.

## How it works

- Select the target goal, limb (upper or lower), rep protocol (standard 4-set or 5-set), cuff type, 1RM, and Doppler-measured AOP if available.
- The tool performs an automated safety check against contraindications such as DVT history, unhealed surgery, clotting disorders, and uncontrolled hypertension.
- It calculates specific cuff pressure ranges (40–80% AOP or 7/10 tightness), target exercise weight (20–40% 1RM), and external load reduction relative to heavy 70% 1RM work.
- A week-by-week progressive ramp is generated with built-in rest periods, session frequency, and scheduled deload weeks.

## Use cases

- Strength and conditioning coaches programming joint-sparing deload or hypertrophy blocks for injured athletes.
- Physical therapists designing progressive load ramps for post-acute rehabilitation programs.
- Athletes calculating exact cuff inflation pressures (in mmHg) from Doppler measurements for upper or lower body exercises.

## Frequently asked questions

### What is AOP and how is cuff pressure determined?

Arterial Occlusion Pressure (AOP) is the minimum pressure needed to completely stop arterial blood flow, typically measured using a Doppler probe. Training pressure is prescribed as a safe fraction of this number, usually 40–50% for upper limbs and 60–80% for lower limbs.

### How does the tool handle elastic bands without Doppler measurement?

When using elastic wraps without a measured AOP, the tool prescribes an evidence-based perceived tightness scale of 7 out of 10 instead of estimating uncalibrated numerical pressure.

### Should the cuff remain inflated between sets?

Yes, standard BFR protocols keep the cuff continuously inflated during both the working sets and the short 30-to-60-second rest intervals.

### What happens if a contraindication is selected in the health screen?

If high-risk conditions such as DVT, active cancer, unhealed surgery, or uncontrolled hypertension are selected, the tool blocks protocol generation to ensure safety.

### What is the classic 30-15-15-15 repetition scheme?

It is a standard 4-set BFR protocol consisting of a 30-rep initial set followed by three 15-rep sets with short rest intervals (typically 30 seconds), totaling 75 repetitions at 20–40% 1RM.

## Related tools

- [Fartlek & Interval Workout Builder](https://elysiatools.com/en/tools/fartlek-interval-workout-builder): Builds a ready-to-run interval or fartlek session card from one anchor number: warm-up + reps × work + recoveries + cool-down with per-segment pace, power or split targets (Daniels zones from a 5K time, Coggan %FTP zones, or erg splits from a 2K time), work:rest ratio, CR-10 RPE distribution, and a polarized-training intensity-mix check.
- [HRV-Based Recovery & Readiness Score](https://elysiatools.com/en/tools/hrv-recovery-readiness-score): Scores today’s recovery 0-100 from morning HRV (rMSSD/SDNN) and resting heart rate z-scores against your own rolling baseline, blended with last night’s sleep and yesterday’s session RPE — with a green/amber/red tier, meaningful-change (0.5 SD) detection, baseline noise (CV) check, and an intensity-ceiling training recommendation.
- [A1Z26 Letter-Number Workbench](https://elysiatools.com/en/tools/a1z26-letter-number-workbench): Convert between letters and numbers (A=1, B=2, … Z=26) with configurable separator and case, decode numbers back to letters, and compute the letter sum of any text.
- [AGEX Secure Share Note](https://elysiatools.com/en/tools/agex-secure-share-note): Generate a plain-language share note for an AGEX bundle so recipients know how to decrypt and verify it safely
- [AI Prompt A/B Variant Generator](https://elysiatools.com/en/tools/ai-prompt-ab-variant-generator): Generate controlled A/B variants of a prompt across the persona, tone/style, output format, and constraints dimensions, then compare them side by side with a heuristic rubric score and a word-level diff against the baseline. A reproducible way to test how a prompt behaves under different framings before picking one for production.
- [AI RAG Chunk Quality Scorer](https://elysiatools.com/en/tools/ai-rag-chunk-quality-scorer): Score candidate RAG chunk-splitting schemes for a document across four metrics — coherence (clean sentence/paragraph boundaries), coverage (topic focus / key-term concentration), context overlap health, and chunk-size consistency — then compare up to three schemes side by side and recommend the best. Pure offline heuristics, no model calls.
- [APR Calculator](https://elysiatools.com/en/tools/apr-calculator): Calculate the true Annual Percentage Rate (APR) of a loan when upfront fees are involved. The nominal interest rate sets the monthly payment, but fees reduce the net cash received, raising the effective APR. Uses Newton's method to solve the annuity present-value equation. Shows APR, nominal rate, monthly payment, and the APR premium.
- [AsciiMath LaTeX MathML Equation Converter](https://elysiatools.com/en/tools/asciimath-latex-mathml-equation-converter): Convert equations between AsciiMath, LaTeX and MathML: auto-detect the input format, produce canonical LaTeX, presentation MathML with an embedded TeX annotation, a best-effort AsciiMath back-translation, a screen-reader aria-label snippet (role=math), and a KaTeX HTML preview.

## Samples

- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion
- [Web Image Processing Rust Samples](https://elysiatools.com/en/samples/web-image-processing-rust): Web Rust image processing examples including image read/save, scaling, and format conversion