# INSCYD

> INSCYD is metabolic profiling software for endurance sport. It takes the data from a single performance test and computes a complete physiological profile of the athlete: VO2max, VLamax, the anaerobic threshold, LT1, FatMax, CarbMax, glycogen availability, fat and carbohydrate combustion rates, economy, and training zones derived from those values.

The central idea is that the test protocol and the equipment do not have to change to get a complete profile. INSCYD accepts input from a conventional lactate step test, a full lab test with a metabolic cart, a field test with a lactate meter, or a remote test using only power meter or GPS data, and returns the same set of metrics from any of them. A VO2 analyzer is not required to obtain VO2max.

INSCYD is used by coaches, performance labs, universities, clubs, national federations and WorldTour teams. It is hardware independent: any lactate meter, power meter, GPS watch, ergometer, treadmill or metabolic cart can be the data source. The models are deterministic and physiological rather than statistical or machine-learned, so the same input always produces the same result.

INSCYD GmbH is based in Salenstein, Switzerland. The founder is Sebastian Weber.

## What INSCYD computes
- [VO2max](https://inscyd.com/metric/vo2max): maximum rate of oxygen uptake, computed from a lactate test, a lab test or a power or GPS file
- [VLamax](https://inscyd.com/metric/vlamax): maximum glycolytic rate, measured from a 15 second sprint or a lactate test, without a metabolic cart
- [Anaerobic threshold](https://inscyd.com/metric/anaerobic-threshold): the maximum lactate steady state, and why FTP approximates it imprecisely
- [LT1](https://inscyd.com/metric/lt1): the aerobic threshold, standardized so results are comparable between labs
- [FatMax](https://inscyd.com/metric/fatmax): the intensity at which fat combustion peaks
- [CarbMax](https://inscyd.com/metric/carbmax): maximum carbohydrate combustion rate, which governs race fueling and pacing
- [Fat combustion rate](https://inscyd.com/metric/fat-combustion): the rate at which an athlete uses fat to produce energy at a given exercise intensity
- [Carbohydrate combustion rate](https://inscyd.com/metric/carbohydrate-combustion): how much carbohydrate an athlete utilizes to produce energy at a given exercise intensity
- [Available glycogen](https://inscyd.com/metric/available-glycogen): glycogen stores and how long they last at race intensity, without a muscle biopsy
- [Lactate production and combustion](https://inscyd.com/metric/lactate-production-combustion): the two separate rates whose crossing point defines the anaerobic threshold
- [Accumulation Index](https://inscyd.com/metric/accumulation-index): how fast lactate accumulates above threshold, scored 0 to 100
- [Recovery Index](https://inscyd.com/metric/recovery-index): lactate clearance capacity
- [Lactate clearance rate](https://inscyd.com/metric/lactate-clearance-rate): the rate at which accumulated blood lactate concentration can decrease at a given exercise intensity
- [Economy](https://inscyd.com/metric/economy): the real energy cost of speed in running and swimming
- [Energy contribution](https://inscyd.com/metric/energy-contribution): the aerobic and anaerobic split behind every watt
- [Body composition](https://inscyd.com/metric/body-composition): why body composition changes what a lactate concentration means
- [Heart rate](https://inscyd.com/metric/heart-rate): zones, pacing and fueling expressed in bpm
- [All metrics](https://inscyd.com/metrics): the full list computed from one test

## How testing works
- [Performance testing overview](https://inscyd.com/feature/performance-testing): lab, field and remote testing, what each needs, and the one profile they all produce
- [Lab testing](https://inscyd.com/for-labs): turning a conventional lactate step test into a full physiological assessment
- [VO2max without an analyzer](https://inscyd.com/vo2max-without-analyzer): gold-standard VO2max from lactate testing alone
- [Field testing](https://inscyd.com/field-performance-testing): lab-grade data in real conditions, any protocol, any sport
- [Remote testing](https://inscyd.com/for-remote-testing): athletes test themselves anywhere, using power or GPS data only
- [Lactate testing devices](https://inscyd.com/lactate-testing-devices): INSCYD works with the lactate meter you already own
- [Device compatibility](https://inscyd.com/feature/device-compatibility): hardware independence, no proprietary equipment
- [Accuracy check](https://inscyd.com/feature/accuracy-check): how INSCYD checks its own results, parameter by parameter

## Software capabilities
- [All features](https://inscyd.com/features): the complete capability list
- [Metabolic profile](https://inscyd.com/feature/metabolic-profile): benchmarks against a chosen peer group, load characteristics and the metabolic fingerprint
- [Performance projection](https://inscyd.com/feature/performance-projection): change VO2max, VLamax, body composition or economy and see the whole profile recalculate
- [Training zone builder](https://inscyd.com/feature/training-zone-builder): zones built on the metric you intend to train, with fueling and energy demand per zone
- [Custom PDF report](https://inscyd.com/feature/custom-pdf-report): branded, customizable reports generated from any test
- [Multi-user management](https://inscyd.com/feature/multi-user-management): unlimited users per organization with roles you define

## Who uses INSCYD
- [Coaches](https://inscyd.com/for-coaches): adding performance assessment to a coaching business
- [Human performance labs](https://inscyd.com/for-labs-cart): use a single test protocol to generate more, higher-quality data with less effort than today
- [Elite sport](https://inscyd.com/for-elite-sport): full physiological profiles from one hour of testing in real conditions
- [Research](https://inscyd.com/research-applications): validated analytical software for universities and graduate research
- [Find a provider](https://inscyd.com/finder): INSCYD testing providers across 59 countries, filterable by sport and location
- [Velocity integration](https://inscyd.com/velocity): automated INSCYD profiling inside VQ Velocity, for testing whole groups indoors
- [Customer stories](https://inscyd.com/user-stories): how coaches, labs, federations and athletes use INSCYD in practice

## Science and validation
- [Scientific commitments](https://inscyd.com/science/core-value): peer-reviewed research, deterministic models, reproducible results
- [Validation and verification](https://inscyd.com/science/validation-verification): peer-reviewed comparison against gold-standard lab measurement, and error sensitivity analysis
- [Research and news](https://inscyd.com/science/news-research): ongoing research projects and published studies
- [Scientific advisory board](https://inscyd.com/science/advisoryboard): the physiologists guiding INSCYD's scientific direction
- [Cardiopulmonary vs muscular oxygen uptake kinetics](https://inscyd.com/cardiopulmonary-vs-muscular-oxygen-uptake-kinetics): separating muscular from pulmonary kinetics
- [Sprint test ergometer settings](https://inscyd.com/sprinttest-ergometer-settings): how ergometer settings in all-out sprints change calculated VLamax
- [Substrate use under stochastic load](https://inscyd.com/substrate-utilisation-during-interval-and-stochastic-load-patterns): fat and carbohydrate use where steady-state assumptions break down

## Learning and resources
- [Resource library](https://inscyd.com/resources): webinars, whitepapers, videos, articles and customer stories
- [Blog](https://inscyd.com/blog): guides and deep dives on testing, physiology, training and fueling
- [Webinars](https://inscyd.com/webinars): sessions with Sebastian Weber and guest sports scientists
- [Whitepapers](https://inscyd.com/whitepapers): VLamax, FatMax, glycogen and lactate thresholds, from definition to application
- [Videos](https://inscyd.com/videos): explainers, tutorials and athlete features
- [INSCYD College](https://inscyd.com/college): structured e-learning on energy metabolism, testing and training design
- [Coaching and testing camp](https://inscyd.com/coaching-testing-camp): four-day hands-on camp on physiology, diagnostics, nutrition and adaptation
- [Workshop](https://inscyd.com/workshop): two days of hands-on methods from elite sport
- [Endurance performance report](https://inscyd.com/performance-report): anonymized data from 474 organizations across 43 countries

## Company
- [About INSCYD](https://inscyd.com/about-inscyd): the company behind the software
- [Book a demo](https://inscyd.com/demo): a live walkthrough with the INSCYD team
- [Contact](https://inscyd.com/contact): get in touch
- [FAQ](https://inscyd.com/faq): frequently asked questions about the INSCYD software
- [Imprint](https://inscyd.com/imprint): INSCYD GmbH, Salenstein, Switzerland