Limited time offer

Now get LT1—whether you perform lactate testing or not

Now get LT1—whether you perform lactate testing or not

Understanding an athlete’s LT1 is key to improving performance and achieving endurance goals. The Lactate threshold 1 is the Hallmark of the popular Zone 2. Knowing LT1 is crucial to define the intensity of Zone 2 correctly.

Now, with INSCYD, you can access this critical metric not only through lab or field lactate tests but also using remote testing measuring power or speed-only—no lactate sampling required!

  • Works Across All Endurance Sports
  • Independent of Test Type
  • Consistent Between Testing Protocols
Claim Your Free LT1
LT1 Determination in Lactate Curve

LT1

238 watt

Old Way

No Lactate Testing = No LT1, Meaning You and Your Athletes Are Falling Behind

If you’re not doing lactate testing, you’re missing out on popular LT1. Even with lactate testing, the lack of a standardized protocol means LT1 results can vary, making it difficult to ensure consistency across different methods, protocols, equipment used and athlete types.

  • Until now, LT1 data was only accessible through lactate testing, limiting regular access and leaving critical performance insights out of reach.
  • Relying on proxies or less accurate metrics, due to inaccessible LT1 data, restricts your ability to provide the precise insights that today’s athletes seek.
Missed Insights

Until now, LT1 data was only accessible through lactate testing, limiting regular access and leaving critical performance insights out of reach.

Outdated Methods

Relying on proxies or less accurate metrics, due to inaccessible LT1 data, restricts your ability to provide the precise insights that today’s athletes seek.

New Way

Now You Can get LT1 Anywhere:
No Lab, No Special Equipment – No Extra Cost!

With INSCYD, LT1 is now integrated across all testing modalities, allowing you to access this popular performance metric remotely. No lab visits, no hassles—just accurate, actionable data that empowers you to optimize your athletes’ training and performance. 

  • Works Across All Endurance Sports
  • Independent of Test Type
  • Consistent Between Testing Protocols
Claim Your Free LT1

Get Reliable LT1 ACROSS ALL DEVICES & ENVIRONMENTS

You can use GPS watches, power meters, lactate analyzers, or metabolic carts to get comprehensive, lab-quality LT1 data across all sports and training environments—whether in the field or remotely.

  • LT1 values are consistent across different testing methods, enabling reliable comparisons.
  • Effectively track progress over time to ensure data-driven training adjustments.
Claim Your Free LT1

Customize Training with scientific determined LT1

Gain clarity on performance by integrating various metabolic factors, ensuring LT1 is not just a standalone metric but part of a comprehensive physiological picture of your athlete, enabling personalized training with unmatched precision.

  • Use 360° metabolic profile in conjunction with LT1 to better understand your athletes physiology.
  • Use LT1 to determine individual training zones for optimal performance development.
Claim Your Free LT1

Get consistent and reproducible LT1 —regardless of the protocol or testing method

We have developed an innovative, standardized method for calculating LT1, ensuring consistency across different testing methods, protocols, athlete types, and equipment.

An increase in lactate concentration—which defines LT1—depends heavily on the test protocol and equipment used. We eliminate this variability by standardizing the calculation of LT1, making it independent of all external factors that might influence the result.

This standardization allows for accurate comparisons over time and between athletes, giving you precise, actionable insights.

Learn More About LT1 & Download Technical Whitepaper

Plus, get curated scientific papers on LT1 if you want to dive deeper into the topic!

LT1 for different durations and resting lactate values

Track and Compare Progress Over Time

Track your athletes’ progress over time with a standardized LT1 metric, allowing for reliable progress tracking and athlete-to-athlete comparisons, so you can continuously optimize training and performance outcomes.

  • LT1 values are consistent across different testing methods, enabling reliable comparisons.
  • Effectively track progress over time to ensure data-driven training adjustments.
Claim Your Free LT1

What Our Coaches and Athletes Are Saying

"With INSCYD I was able to show my athlete that we need a different training approach"
ERJU ZHANGINSCYD COACH
ERJU ZHANG
"Using INSCYD PPD, I could clearly see his strengths and limitations.”
MARK TURNBULLSparks Into Life
MARK TURNBULL
“With the INSCYD metabolic breakdown data, it is easy to calculate what's possible.”
MARKUS KINZLBAUERCoach of 6-Time Winner and Record Holder of the Race Across America
MARKUS KINZLBAUER
"After starting with INSCYD, it was like a snowball effect. We went from having 20 runners in the program winning about 30 medals last year. This year our athletes won 160 medals with 23 champions, 29 Runners-Up (2nd) and 22 third place finishes."
BEN TILUSXLR8 Performance Lab
BEN TILUS
"The more we can understand how an athlete does what they are capable of doing, the better we can focus on what they need to do to get better. This is why I am happy to partner with INSCYD."
David Tilbury-DavisWorld-renowned triathlon coach
David Tilbury-Davis
"INSCYD improves my ability to provide coaching guidance to athletes all over the world and know that we’re looking at the same data from a validated protocol.”
Ryan KohlerFast Talk Labs Head Coach and Physiologist
Ryan Kohler
“Because of the INSCYD test I can now prepare for the upcoming seasons and finetune my trainings to reach my goals!”
Vanessa ScaunetCross country runner
Vanessa Scaunet
“The INSCYD test opened my mind to an entirely new world of training and racing.”
Lionel SandersProfessional IRONMAN athlete
Lionel Sanders
“While everyone is obsessed with power data, INSCYD enables me to go beyond the superficial and understand my body better.”
Eli IserbytCyclocross professional
Eli Iserbyt
"INSCYD brings more flexibility. You can do the metabolic test whenever you or your athletes need to do that. You don’t have to book the lab beforehand"
MIKA LUOTOFINNISH TRIATHLON ASSOCIATION
MIKA LUOTO
"INSCYD goes beyond power analysis and allows us to see what happens in the body on metabolic level at every type of intensity."
Alpecin-Fenix Cycling TeamPerformance Department
Alpecin-Fenix Cycling Team
“INSCYD enables us to precisely capture key performance metrics of the energy metabolism of our swimmers”
Dr. Alexander Törpel, PhDHead of Diagnostics, German Swimming Federation
Dr. Alexander Törpel, PhD
"INSCYD enables us to take real-world data from testing & training. This saves us time and effort, and refines the quality of our job."
Patxi VilaHead of Performance Movistar Team
Patxi Vila
"Thanks to INSCYD, my trainer and I always know where I currently stand and where I can improve my performance."
Wout van AertTeam Jumbo-Visma
Wout van Aert
“INSCYD looks inside the muscle and body in order to understand what’s happening based on a very limited number of measurements.“
PROF. DR. FERRAN RODRIGUEZUNIVERSITY OF BARCELONA INEFC
PROF. DR. FERRAN RODRIGUEZ
"INSCYD enables coaches to find that missing piece in training, to understand what is going on in the athlete's body and get the best out of them."
Brijesh LawrenceTwo-time Olympic athlete
Brijesh Lawrence
“I am convinced by the effectiveness of INSCYD to improve performance – it has proven to be a very powerful tool for us.”
DR. PHILIPPE HELLARDHEAD OF RESEARCH DEPARTMENT FRENCH SWIMMING FEDERATION
DR. PHILIPPE HELLARD
"INSCYD testing helps my coaches to create the best training programs for us."
Primoz RoglicTeam Jumbo-Visma
Primoz Roglic

Offer What Athletes Want
and Grow Your Business

Adding LT to your coaching & testing toolbox not only helps your clients achieve their goals faster but also enhances your coaching offerings, allowing you to meet the growing demand for this popular metric and increase your revenue through extended service offerings.

Stand Out as a Coach

Offering precise LT1 sets you apart from other coaches, positioning you as an expert in endurance training and attracting new athletes.

Enhanced Athlete Retention

LT1 data provides clear insights that lead to measurable improvements, keeping athletes engaged and loyal to your coaching.

Expand Your Offering

Incorporate LT1 into your coaching services to provide a comprehensive, data-driven approach that athletes are increasingly seeking.

Give Athletes What They Want

LT1 is one of the most wanted metrics by athletes. Offering it in your coaching practice meets this demand and enhances the value of your services.

Trusted by Elite Federations, Coaches, Labs and Leading Universities Worldwide

Now get LT1—whether you perform lactate testing or not

No lab visits, no hassles—just accurate, actionable data that empowers you to optimize your athletes’ training and performance.

Register now