Blog
Meet Staff Physiologist Andri Feldmann
Andri Feldmann is a staff physiologist for Moxy. He’s been involved with Moxy since the first...
1 minute read
Control your intensity: daily application of muscle oxygenation monitoring.
How long should I train? How hard should I train? How often should I train and what will the...
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Using Moxy for critical power and time to exhaustion during cycling
An article published in the Journal of Applied Physiology on April 29th shed light on some critical...
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Case Study: Moxy for High Intensity Functional Training Pacing
Multimodal Fitness or High Intensity Functional Training (HIFT) has gained a considerable following...
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The Role of the Metaboreflex In Respiratory Limited Athletes
5-1-5 assessments can be used to estimate the system that is most limiting to an athlete’s...
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Moxy and VO2 Master: Physiological Testing Simplified
VO2max, thresholds, and efficiency are thought to be and certainly do have considerable predictive...
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Moxy and PNOĒ – a match made in heaven
My journey into physiological testing and program design started approximately 20 years ago when...
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Case Study: Adaptation to 5 Weeks of Training - Part 3
Introduction. Over the last few weeks a case study of 5 weeks of high intensity interval training...
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Case Study: Adaptation to 5 Weeks of Training - Part 2
Introduction. In the last blog post I outlined how Moxy was used over the course of five weeks to...
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Case Study: Adaptation to 5 Weeks of Training - Part 1
The goal of training is to improve performance. This typically involves skirting a very thin line...
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Moxy in Research: Reliability and Validity of the Moxy Monitor
Near-infrared spectroscopy (NIRS) devices have seen growing popularity in research and sporting...
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Case Study – Interpretation of Repeat Desaturation Assessment
Introduction. In the last post how to complete a repeat desaturation protocol was discussed. This...
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Assessment – Repeat Desaturation for Team and Multimodal Athletes
Introduction. The last few posts have covered the topic of assessments, and how Moxy/NIRS devices...
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Assessment - Occlusion Response to Strength Training
Skeletal muscle oxygenation response during training/assessments can give great insights to how the...
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Measuring Skeletal Muscle Oxidative Capacity with NIRS
Near-infrared spectroscopy (NIRS) is a powerful non-invasive tool that allows researchers to...
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Using Near-Infrared Spectroscopy for Research
NIRS in Research. Near-infrared spectroscopy (NIRS) is a relatively new technology that has shown...
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Case Study: Autoregulation for Sprint Intervals
While science does a great job of measuring the statistical norms of a population, the individual...
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Is Autoregulation the next step in Athlete Training Optimization?
Scientists and coaches have long been searching for the perfect interval workout that pushes the...
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How to Train an Athlete's Limiter
Over the last few blog posts, I have outlined how to Complete and Analyze a 5-1-5 Assessment....
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Analysis of a 5-1-5 Assessment
The last blog post discussed how to complete a 5-1-5 Assessment to evaluate which system: cardiac,...
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How to Complete a 5-1-5 Assessment
Purpose:The purpose of most physiologic testing is to find maximal or threshold values in order to...
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Using a 4-1-4 Assessment to Identify Bilateral Oxygenation Differences
In the last few blog posts I identified a significant right left quad oxygenation imbalance during...
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Moxy Trends at ACSM
We exhibited Moxy at the ACSM Annual Meeting last week and Moxy was everywhere. There were two...
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Further Identification of Unilateral Imbalances Using Moxy
In the last blog post I detailed discrepancies in desaturation patterns in the right and left...
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Identifying Unilateral Differences During Cycling with Moxy
Injuries are one of the major causes of stagnation or lack of progress during training. I am sure...
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Case Study: Three 3min Critical Power Tests
In the last blog post I discussed the use of a 3 minute critical power test to monitor, and dictate...
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Could a 3-minute critical power test replace FTP and CP testing?
Functional threshold power (FTP) tests have been used by cyclists to determine the highest...
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Case Study: Behind the Rocks Muscle Oxygenation Analysis
In the last blog post, I detailed my adventure through the back country of Utah, in the Behind the...
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Behind the Rocks 30k Recap
Warning: The following post, as opposed to having technical physiology, is mainly a recap of the...
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The Lactic Acid Construct
Historical importance of Lactate The discovery of lactic acid occurred in 1780 when Swedish...
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Altitude Training: Beneficial or Just Hot (Less Dense) Air?
Altitude Training a Primer High altitude training is thought to improve performance. The apparent...
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Case Study 2: Using Moxy to Dictate Power Training, Sets, Reps, and Recovery
We have recently explored the benefits of strength training as well as outlining how to implement...
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Case Study 1: Using Moxy to Dictate Strength Training, Sets, Reps, and Recovery
In the last blog post, we explored the benefits of strength training as well as outlining how to...
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Improving Endurance Performance by Strength Training
Consistent training is one of the hallmarks to success in most sports. This is especially true for...
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Finding the Limiter with Muscle Oxygen Monitoring to Maximize Athletic Performance
We often talk about identifying physiologic limiters with Moxy. We can determine if an athlete is...
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The Relationship Between Oxygen and Phosphocreatine Recovery Kinetics
Three Energy Systems There are three energy systems in the body, all using different substrates to...
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How to use Moxy to Monitor Warm-up Status
In Part 1: Creating a Proper Warm-up the principles of a proper warm-up were discussed as well as a...
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Creating a Proper Warm-Up
The purpose of a warm-up is simple: to prepare for the workout or race in the best way possible. A...
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Moxy and Training Peaks: Putting The Athlete First
Moxy and Training Peaks For the past few years, leading endurance coaches and serious athletes...
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HOW ACTIVITY TRACKERS ARE CHANGING THE WAY ATHLETES TRAIN AND WORK OUT
Here's an interview I did on the future of wearable fitness trackers for the Accurofit.com wIncreasing Revenue for Your Training Business: What is Your Differentiator?
In the first post of this series, Increasing Revenue: The ROI of Product & Services in the Fitness...
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Denis Šketako: A Practical Success Story
Denis Šketako is a Slovenian triathlete that Moxy has recently begun sponsoring. He has been using...
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Understanding the Quality of Muscle Oxygen Metrics
Moxy was the first muscle oxygen monitor developed specifically for athletes. Originally conceived...
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Reflection on the National Strength and Conditioning Association Coaches Conference
Earlier in January, we attended the National Strength and Conditioning Association Coaches...
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Increasing Revenue: The ROI of Product & Services in the Fitness Training Market
Since we announced Moxy’s Charter Certified Training Center (CCTC) program this past spring, I’ve...
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The Moxy Blog: Our Values and the New Year
As we begin a new year, we’ve decided to start posting blogs on a regular basis. In our blogs,...
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Update: Moxy & ConnectIQ at the Consumer Electronics Show (CES)
I’m at the Consumer Electronics Show today, joining with Garmin as they announce the rollout of...
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How We Use Moxy for Sport-Specific Assessments and Training
What if you could tell how long an athlete could skate full-out, fully recover, and do it again?
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How Garmin’s Connect IQ System Benefits Moxy
Garmin’s recent Connect IQ announcement is great news for Moxy. It represents another big step...
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“Relative” vs "Absolute" Muscle Oxygenation Measurement: What’s the Difference?
One of the differentiating factors between Moxy and many of the other Near Infrared Spectroscopy...
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Training Intensity Zones: Muscle Oxygen and the Limiting System
In this post, I want to go beyond simply determining training intensity zones to determining what...
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Setting Training Intensity Zones: Muscle Oxygen
In this post, I will discuss how Muscle Oxygen monitoring is used to determine training intensity...
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Training Intensity Zones: Functional Threshold Power
Functional Threshold Power (FTP) has become a very popular method for setting training intensity...
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Determining Training Intensity Zones: Lactate Threshold
This is probably the single topic in this blog series on determining training intensity zones...
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Determining Training Intensity Zones: VO2 Max
Here is the fourth post in my series on determining training intensity zones. Today’s topic...
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Determining Training Intensity Zones: Maximum Heart Rate
This is the third post in my series on determining training intensity zones. The topic of this...
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Determining Training Intensity Zones: Rating of Perceived Exertion
Rating of Perceived Exertion (RPE) is the simplest method for setting training intensity zones....
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Using Moxy for Walking and Running [Infographic]
Muscle Oxygenation dynamics precisely reflect changes in muscular metabolism and can be used to...How Muscle Oxygen Relates to VO2 and Blood Lactate
The Moxy Muscle Oxygen Monitor was designed to tell you everything that is going on with your...How We Plan to Handle Your Moxy Data - #MoxyMinute
We developed the Moxy Muscle Oxygen Monitor to contain data that is compatible with any system you...How Moxy is Different Than a Pulse Oximeter - #MoxyMinute
We've gotten a lot of questions recently about what makes the Moxy Monitor different from a Pulse...Why Moxy? A Historical Perspective
The most important aspect of training and exercise science is how we produce usable energy (ATP)...
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Drop Set Weight Training
The article cited below shows that Muscle Oxygenation effects anabolic hormone function....
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Moxy and Climbing: Breaking Down the Data
I thought I would add another area of possible application for Moxy Monitor: Climbing.
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Using Moxy Monitor with ZeroPace
We are pleased to announce that ZeroPace Training Log software has just released compatibility...The First Ever Moxy Monitor Seminar
Imagine yourself in one of the most beautiful cities in the United States, possibly in all of...
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An Introduction to Muscle Oxygen Monitoring with Moxy [Infographic]
Athletes are constantly searching for an edge to achieve their goals - an honest way to be faster,...What about Myoglobin?
The topic of Myoglobin often comes up in discussions about Near Infrared Spectroscopy (NIRS),...
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Insight into the 3 Major Macro Nutrients for Athletes
The following is a guest blog from Sandy Musson, owner of Trenton, Ontario-based Tri and Run...
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Understanding the Hemoglobin and Myoglobin Dissociation Curves
The Hemoglobin and Myoglobin Dissociation Curves, when taken together, represent an important...
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Hydration for Athletes
Everybody knows drinking water during the summer is important, but all too often we see athletes...
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The Effect of Mitochondrial Density on Athletic Performance
Mitochondria are the power source of your cells. Their task is to convert nutrients you consume...
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What is Cardiac Output?
Often trainers and athletes will refer to the importance of increasing cardiac output. But what...
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How I think about the Central Governor Model
The Central Governor Model is frequently mentioned in the Moxy Forum. I find this to be a pretty...
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The History of the Central Governor Model
The concept behind the central governor model is experienced by runners almost every time they...
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Cyclists: Compact or Conventional Gearing?
If your cycling routes involve many climbs that make it difficult to maintain a reasonable...
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Perfecting the Cool Down
After a hard workout, you may feel tempted to cut your cool down to just a few minutes of...
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Effective Climbing for Cyclists
Developing power for uphill climbs is one of the most challenging cycling skills to master, but it...
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Triathletes: How to Cross Train to Increase Performance
If cycling is the most difficult feature of the triathlon for you, it is likely that you spend...
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Power Training and Indoor Cycling
If you want to improve you speed throughout the year, whether for mountain biking, road cycling,...
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Kona Triathlon Sees Widespread Use of the Power Meter
Every year at theKona World Ironman Championships, triathletes must specify what equipment they...
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Is Virtual Cycling the New Reality?
With virtual cycling, you can visit new places at any time of the year without leaving your home....
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Understanding the Cadence Factor in Indoor Cycling
Whether you have attended a spinning class or have just observed one through the window at the...
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Triathletes: Why Your Training Regimen Should Include Low-Intensity Runs
With a need to improve speed for the big race, it may seem counterproductive to train by running...
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Commonly Used Indoor Cycling Terms
If you are new to indoor cycling, but plan to start this winter, it is important to familiarize...
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Using Indoor Cycling to Become Better Outdoors
It is no great secret that indoor cycling, also known as spinning, can benefit all types of...
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5 Interval Training Workouts for Indoor Cycling
If you want to keep up with your cycling practice over the winter but cannot ride outdoors, try...
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Perfecting the Pedal Stroke
For cyclists, there is much more to pedal stroke than simply making the cranks go round. Yet it is...
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4 Killer Bike Trainer Workouts
Many people use bike trainer workouts as a chance to exercise while they are engaged in some other...
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Does Inspiratory Muscle Training Improve VO2 Max?
The concept of inspiratory muscle training makes sense: because endurance sports cause breathing...
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Indoor Bike Trainers: A Brief Overview
For those of you who have been trying to figure out the distinction, indoor bike trainers are...
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9 Benefits of Indoor Cycling
Cyclists and triathletes are increasingly turning to indoor cycling (aka “spinning”), with many...
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How Cyclists Benefit with Aero Position and Respiratory Muscle Training
Competitive cyclists and triathletes are keenly interested in the idea of aerodynamic posture,...
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Relationship Between Hbdiff, TSI, and SmO2
We’ve had a few issues come up comparing readings from Portamon and Moxy Monitor. I’ve looked into...
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Does the Brain Control Running Pace?
Every runner has an individual running pace he or she naturally falls into during a steady run...
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Using the Central Governor Model to Better Understand Fatigue
Fatigue leading from physical exertion has traditionally been attributed to a depletion of oxygen...
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The Difference Between Functional Threshold Power and Lactate Threshold
There are two thresholds used to describe the effects of exercise intensity on the body of an...
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How to Establish your Functional Threshold Power
The power meter was invented as long ago as 1988, but it is still treated as a new device by many...
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Comparing Critical Power and Functional Threshold Power
Power, considered one of the most reliable indicators of cycling performance, is an excellent...
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Managing Training Load with EPOC
In the past, it was always very difficult to measure fatigue accumulation during training. Most...
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Using HRV to Measure Training Stress and Recovery
The heart responds immediately to an increase or decrease in stress levels. This phenomenon can be...
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A Primer on Heart Rate Variability
It is well known that longer, more intense training sessions increase the risk of overtraining...
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How Exercise Improves Mitochondrial Function and Slows the Aging Process
The aging process in humans begins around the age of 40 when muscle mass and strength gradually...
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Inducing Mitochondrial Biogenesis with HIIT
It is already known and understood that endurance training induces a number of metabolic...
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Why Stroke Volume Trumps Maximal Heart Rate
The heart is an involuntary muscle, meaning it cannot be consciously controlled - a person cannot...
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How to Increase VO2 max with HIIT
It was traditionally thought that endurance training that relied on aerobic activities was the...
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The Role of Physiological Adaptation in Endurance Performance
Determining the limiting factors in endurance training is essential for athletes looking to...
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Using the Wingate Test to Measure Anaerobic Power
The Wingate Test, or Wingate Anaerobic Test (WANT), is one of the most popular measures for...
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The Limitations of VO2 Max for Athletes
VO2 max is considered to be a vital component of any endurance athlete's plan. Simply put, it is...
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Should Athletes Use Lactate Threshold to Train?
Many athletes use lactate threshold training to improve their endurance capabilities. The theory...
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What Exactly is Lactate Threshold, Anyway?
Most coaches and sport scientists recognize lactate threshold as one of the best predictors of...
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3 High-Altitude Training Techniques to Delay Muscle Fatigue
The main purpose of high altitude training is to stimulate the production of red blood cells in...
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4 Nutrition Tips for High Altitude Training
The demands placed on the body during high altitude training require endurance athletes to give...
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7 Benefits of High Altitude Training for Triathletes
As some of the most intense, dedicated competitors on the planet, triathletes are always looking...
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Muscle Oxygen Measurement in High Altitude Training
Oxygen is the most important nutrient during exercise, both at sea level and during high altitude...
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5 Core Strength Training Exercises for Triathletes
Core training is one of the most important aspects of a triathlete’s strength-based workouts, as a...
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The Difference Between Muscle Fatigue and Oxygen Debt
We all know the feeling. Every muscle is tense, every pore is dripping sweat, even your lungs...
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8 Benefits of High-Intensity Interval Training (HIIT)
High intensity interval training (HIIT) refers to aerobic workouts that alternate between high and...
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Using Near-Infrared Spectroscopy (NIRS) to Determine Lactate Threshold
A letter from the CEO of Fortiori - Makers of the Moxy Monitor:
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