---
title: The InsideGuide | Performance (5)
description: "Performance | The InsideGuide: a blog about biomarkers, blood analysis, athletic performance, nutrition software, and optimizing your fitness. (5)"
---

[![Logo](https://blog.insidetracker.com/hubfs/Logo.png "Logo")](https://www.insidetracker.com/)

- [Why InsideTracker?](https://www.insidetracker.com/testimonial/)
- [How it works](https://www.insidetracker.com/tour/)
- [Science](https://www.insidetracker.com/science/)
- [About](https://www.insidetracker.com/about/)
- [Blog](https://blog.insidetracker.com/)

- [Contact us](https://support.insidetracker.com/supportcenter)
- [Shop](https://store.insidetracker.com/)

Open main menu Close main menu

- [Home](https://blog.insidetracker.com/)
- [Courses](https://info.insidetracker.com/live-healthier-longer-course)
- [Nutrition](https://blog.insidetracker.com/nutrition) Open the submenu 
    - [Food](https://blog.insidetracker.com/topic/food)
    - [Supplements](https://blog.insidetracker.com/topic/supplements)
- [Health + Wellness](https://blog.insidetracker.com/health-wellness) Open the submenu 
    - [Heart health](https://blog.insidetracker.com/topic/heart-health)
    - [Women's health](https://blog.insidetracker.com/topic/womens-health)
    - [Sleep](https://blog.insidetracker.com/topic/sleep)
    - [Energy](https://blog.insidetracker.com/topic/boost-energy)
    - [Cognition](https://blog.insidetracker.com/topic/Cognition)
    - [Immunity](https://blog.insidetracker.com/topic/immunity)
    - [Stress](https://blog.insidetracker.com/topic/reduce-stress)
- [Performance](https://blog.insidetracker.com/performance) Open the submenu 
    - [Endurance](https://blog.insidetracker.com/topic/endurance)
    - [Strength + Fitness](https://blog.insidetracker.com/topic/strength-fitness)
- [Longevity](https://blog.insidetracker.com/longevity)
- More... Open the submenu 
    - [Recovery](https://blog.insidetracker.com/recovery)
    - [Community Stories](https://blog.insidetracker.com/community-stories)
    - [InsideTracker Updates](https://blog.insidetracker.com/insidetracker-updates)

- [Home](https://blog.insidetracker.com/)
- [Courses](https://info.insidetracker.com/live-healthier-longer-course)
- [Nutrition](https://blog.insidetracker.com/nutrition) Open the submenu 
    - [Food](https://blog.insidetracker.com/topic/food)
    - [Supplements](https://blog.insidetracker.com/topic/supplements)
- [Health + wellness](https://blog.insidetracker.com/health-wellness) Open the submenu 
    - [Heart health](https://blog.insidetracker.com/topic/heart-health)
    - [Gut health](https://blog.insidetracker.com/topic/gut-health)
    - [Sleep](https://blog.insidetracker.com/topic/sleep)
    - [Energy](https://blog.insidetracker.com/topic/boost-energy)
    - [Cognition](https://blog.insidetracker.com/topic/Cognition)
    - [Immunity](https://blog.insidetracker.com/topic/immunity)
    - [Stress](https://blog.insidetracker.com/topic/reduce-stress)
- [Performance](https://blog.insidetracker.com/performance) Open the submenu 
    - [Endurance](https://blog.insidetracker.com/topic/endurance)
    - [Strength + fitness](https://blog.insidetracker.com/topic/strength-fitness)
- [Recovery](https://blog.insidetracker.com/recovery)
- [Longevity](https://blog.insidetracker.com/longevity)
- [Community stories](https://blog.insidetracker.com/community-stories)
- [InsideTracker updates](https://blog.insidetracker.com/insidetracker-updates)

#### Search the InsideGuide

#### Browse biomarkers

##### Energy + Metabolism

- [Glucose](https://blog.insidetracker.com/topic/glucose)
- [Cholesterol](https://blog.insidetracker.com/topic/Cholesterol)
- [Triglycerides](https://blog.insidetracker.com/topic/Triglycerides)

##### Bone Health

- [Calcium](https://blog.insidetracker.com/topic/Calcium)
- [Vitamin D](https://blog.insidetracker.com/topic/Vitamin-D)

##### Inflammation

- [hsCRP](https://blog.insidetracker.com/topic/hsCRP)
- [White blood cells](https://blog.insidetracker.com/topic/White-blood-cells)

##### Strength + Endurance

- [Creatine Kinase](https://blog.insidetracker.com/topic/Creatine-Kinase)
- [Testosterone](https://blog.insidetracker.com/topic/Testosterone)
- [DHEAS](https://blog.insidetracker.com/topic/DHEAS)
- [Cortisol](https://blog.insidetracker.com/topic/Cortisol)
- [Sex-Hormone Binding Globulin](https://blog.insidetracker.com/topic/Sex-Hormone-Binding-Globulin)

##### Brain + Body

- [Magnesium](https://blog.insidetracker.com/topic/Magnesium)
- [Vitamin B12](https://blog.insidetracker.com/topic/Vitamin-B12)

##### Electrolytes

- [Potassium](https://blog.insidetracker.com/topic/Potassium)
- [Sodium](https://blog.insidetracker.com/topic/Sodium)

##### Oxygen + Performance

- [Ferritin](https://blog.insidetracker.com/topic/Ferritin)
- [Hemoglobin](https://blog.insidetracker.com/topic/Hemoglobin)
- [Iron](https://blog.insidetracker.com/topic/Iron)

##### Liver Enzymes

- [ALT, AST + GGT](https://blog.insidetracker.com/topic/alt-ast-ggt)

#### InsideTracker Plans

- [Ultimate](https://store.insidetracker.com/products/ultimate)
- [Essentials](https://store.insidetracker.com/products/essentials)
- [InnerAge 2.0](https://store.insidetracker.com/products/innerage)
- [DNA Kit](https://store.insidetracker.com/products/dna-kit)

# Posts about Performance (5)

[![istock-821902888_1024](https://blog.insidetracker.com/hubfs/Wiped%20out%20workout.jpg)](https://blog.insidetracker.com/muscle-damange-to-blame-for-elevated-liver-enzymes)

[Performance,](https://blog.insidetracker.com/topic/performance) [Free testosterone,](https://blog.insidetracker.com/topic/free-testosterone) [Cortisol,](https://blog.insidetracker.com/topic/cortisol) [Creatine kinase,](https://blog.insidetracker.com/topic/creatine-kinase) [Albumin,](https://blog.insidetracker.com/topic/albumin) [Testosterone,](https://blog.insidetracker.com/topic/testosterone) [ALT, AST & GGT,](https://blog.insidetracker.com/topic/alt-ast-ggt) [Liver enzymes,](https://blog.insidetracker.com/topic/liver-enzymes) [AST,](https://blog.insidetracker.com/topic/ast) [ALT](https://blog.insidetracker.com/topic/alt)

### [Elevated Liver Enzymes? Muscle Damage May Play a Role](https://blog.insidetracker.com/muscle-damange-to-blame-for-elevated-liver-enzymes)

 July 6, 2023

[![](https://blog.insidetracker.com/hubfs/Screen%20Shot%202017-10-11%20at%2012.21.59%20PM-1.png)](https://blog.insidetracker.com/how-we-define-your-optimized-zones-health-and-performance)

[Performance,](https://blog.insidetracker.com/topic/performance) [Blood test,](https://blog.insidetracker.com/topic/blood-test) [InsideTracker updates](https://blog.insidetracker.com/topic/insidetracker-updates)

### [How We Define Your Optimized Zones of Health and Performance](https://blog.insidetracker.com/how-we-define-your-optimized-zones-health-and-performance)

 September 20, 2021

[![Screen Shot 2016-11-01 at 12.19.37 PM.png](https://blog.insidetracker.com/hubfs/Screen%20Shot%202016-11-01%20at%2012.19.37%20PM.png)](https://blog.insidetracker.com/houston-rockets-sports-dietitian-tara-boening-nutrition-nba)

[Performance,](https://blog.insidetracker.com/topic/performance) [Community stories,](https://blog.insidetracker.com/topic/community-stories) [Paleo,](https://blog.insidetracker.com/topic/paleo) [Food](https://blog.insidetracker.com/topic/food)

### [Houston Rockets Sports Dietitian Tara Boening Talks Nutrition in the NBA \[VIDEO & TRANSCRIPT\]](https://blog.insidetracker.com/houston-rockets-sports-dietitian-tara-boening-nutrition-nba)

 November 17, 2021

[![ChrisMacIraq.jpg](https://blog.insidetracker.com/hubfs/ChrisMacIraq.jpg)](https://blog.insidetracker.com/veteran-uses-insidetracker-optimize-performance-stay-alive)

[Performance,](https://blog.insidetracker.com/topic/performance) [Endurance,](https://blog.insidetracker.com/topic/endurance) [Strength & fitness](https://blog.insidetracker.com/topic/strength-fitness)

### [This Veteran Uses InsideTracker to Optimize His Performance and Stay Alive](https://blog.insidetracker.com/veteran-uses-insidetracker-optimize-performance-stay-alive)

 November 23, 2021

[![KevinPortmann-558159-edited.jpg](https://blog.insidetracker.com/hubfs/KevinPortmann-558159-edited.jpg)](https://blog.insidetracker.com/ironman-winner-kevin-portman-success-tips)

[Performance,](https://blog.insidetracker.com/topic/performance) [Triathlon,](https://blog.insidetracker.com/topic/triathlon) [Training,](https://blog.insidetracker.com/topic/training) [Ironman](https://blog.insidetracker.com/topic/ironman)

### [Ironman Kevin Portmann Shares His Success Story](https://blog.insidetracker.com/ironman-winner-kevin-portman-success-tips)

 August 31, 2016

[![](https://blog.insidetracker.com/hubfs/JoeDIJumping-469655-edited.png)](https://blog.insidetracker.com/breathing-basics-advice-spartan-race-joedi)

[Performance,](https://blog.insidetracker.com/topic/performance) [Recovery,](https://blog.insidetracker.com/topic/recovery) [Training,](https://blog.insidetracker.com/topic/training) [Reduce stress](https://blog.insidetracker.com/topic/reduce-stress)

### [Breathing Basics: Advice from Spartan Race Director of Sport, Joe DI](https://blog.insidetracker.com/breathing-basics-advice-spartan-race-joedi)

 September 7, 2021

[![](https://blog.insidetracker.com/hubfs/IMG_4592-786066-edited.jpg)](https://blog.insidetracker.com/fit-for-contact)

[Performance,](https://blog.insidetracker.com/topic/performance) [Training,](https://blog.insidetracker.com/topic/training) [Injury prevention](https://blog.insidetracker.com/topic/injury-prevention)

### [Are You Fit Enough For Contact Sports? Rugby's All The Rage.](https://blog.insidetracker.com/fit-for-contact)

 November 18, 2021

[![tennis_iStock_13534829_SMALL.jpg](https://blog.insidetracker.com/hubfs/tennis_iStock_13534829_SMALL.jpg)](https://blog.insidetracker.com/improve-tennis-performance-biomarkers)

[Sex hormone binding globulin,](https://blog.insidetracker.com/topic/sex-hormone-binding-globulin) [Performance,](https://blog.insidetracker.com/topic/performance) [Overtraining,](https://blog.insidetracker.com/topic/overtraining) [Testosterone,](https://blog.insidetracker.com/topic/testosterone) [Boost energy,](https://blog.insidetracker.com/topic/boost-energy) [DHEAS](https://blog.insidetracker.com/topic/dheas)

### [Tennis Burnout? Here's How To Fix It](https://blog.insidetracker.com/improve-tennis-performance-biomarkers)

 November 17, 2021

<https://blog.insidetracker.com/topic/performance/page/4> [3](https://blog.insidetracker.com/topic/performance/page/3) [4](https://blog.insidetracker.com/topic/performance/page/4) [5](https://blog.insidetracker.com/topic/performance/page/5) [6](https://blog.insidetracker.com/topic/performance/page/6) [7](https://blog.insidetracker.com/topic/performance/page/7) <https://blog.insidetracker.com/topic/performance/page/6>

#### Shop

- [Membership](https://store.insidetracker.com/products/insidetracker-platform)
- [Membership + Ultimate](https://store.insidetracker.com/products/ultimate)
- [View all plans](https://store.insidetracker.com/)

#### Explore

- [Take a tour](https://www.insidetracker.com/tour/)
- [Science](https://www.insidetracker.com/science/)

#### Partner with us

- [Business](https://info.insidetracker.com/partnerships)
- [InsideTracker Pro](https://info.insidetracker.com/professionals)

#### About

- [Our Story](https://www.insidetracker.com/about)
- [Careers](https://www.insidetracker.com/careers/)
- [Press](https://www.insidetracker.com/press-page/)

- <https://www.facebook.com/InsideTracker/>
- [![](https://blog.insidetracker.com/hs-fs/hubfs/X%20Circle.png?width=20&name=X%20Circle.png)](https://x.com/insidetracker)
- <https://www.youtube.com/user/InsideTracker2>
- <http://www.linkedin.com/company/insidetracker/>
- <https://www.instagram.com/InsideTracker/>

#### Support center

[Contact us](https://insidetracker-faq.gorgias.help/en-US/how-can-i-contact-you-288947)

 

- [![app-store](https://blog.insidetracker.com/hs-fs/hubfs/inside-tracker/images/app-store.png?width=563&name=app-store.png)](https://apps.apple.com/us/app/insidetracker/id1501674631)
- [![google-play](https://blog.insidetracker.com/hs-fs/hubfs/inside-tracker/images/google-play.png?width=564&name=google-play.png)](https://play.google.com/store/apps/details?id=segterra.itracker.purple_android)

- [Privacy Policy](https://www.insidetracker.com/policy-privacy/)
- [DNA Research Consent](https://www.insidetracker.com/research-consent/)
- [Product Consent](https://www.insidetracker.com/product-consent/)
- [HIPAA](https://support.insidetracker.com/supportcenter/is-insidetracker-hipaa-compliant/)
- [HSA/FSA](https://support.insidetracker.com/supportcenter/do-you-accept-an-hsa/fsa)

© 2009-2026 Segterra, Inc. All rights reserved. InsideTracker is a personalized nutrition model by Segterra. [Security.](https://info.insidetracker.com/security) Technology protected by U.S. Patent 8762167 and other patent pending applications.

![](https://www.facebook.com/tr?id=868030033345319&ev=PageView&noscript=1)