Case Study:

Prescribing training and nutrtion based on data with the PNOE metabolic analyzer.

Metabolic Efficiency and Energy Utilization Case Study:
An Exercise and Nutrition Intervention at CrossFit TreeTown

PNOE Analytics, Finkbeiner, M., Caines, K., Tewksbury, C., Bruell, M.


Introducing CrossFit athletes to heart rate based training protocol (Ticker Training), and a nutrition protocol will increase fat utilization and improve overall health. 31 CrossFit TreeTown members underwent an exercise and nutrition intervention for 6-12 weeks. 70% of participating members exhibited improved metabolic responses to the training. Results provide strong support for Ticker Training efficacy toward improvements in overall health.


Examining how heart rate based training at an individual’s MAF will improve energy utilization and overall health. 31 CrossFit TreeTown members agreed to undergo an exercise and nutrition intervention. The purpose of this study is to increase fat utilization and optimize efficiency for overall health.


The exercise intervention began with a baseline examination of participants metabolic health using the PNOE metabolic analyzer. Participants wore the PNOE while performing an Assault Bike Ramp Up protocol. By slowly increasing the intensity every minute by an interval of 3 RPM’s. Measurements were taken every 30 seconds, to track gas exchange (VO2, VCO2, RER, HR). Heart Rate was measured using Polar H10 monitor. This test was repeated after 6-12 weeks of Ticker Training.
Ticker Training intervention applied a low to medium intensity exercise program to the participants which utilized heart rate zones developed from the PNOE system. The nutritional intervention encouraged participants to reduce the total amount of daily carbohydrates consumed. It focused on eliminating high glycemic index foods completely from the diet.


Analysis was performed by PNOE analytics. Improvements were observed by monitoring participants RER (respiratory exchange ratio) at specific points during the pre/post test. RER points of interest used were .85 and 1.00. Specifically, HR was recorded at the points where RER of 0.85 (50% fat & 50% carbohydrates utilization) and 1.00 (0% fat & 100% carbohydrates utilization) where achieved. Observation of an increase in Heart Rate at one or both of these measures shows a change in energy utilization. Of the 31 participants, 22 exhibited a positive increase at one or both RER points. 9 participants showed a decrease in Heart Rate and at least one RER point of interest.


The intervention resulted in significant improvements in the participants’ aerobic capacity and ability to utilize fat during exercise.​ ​Changes were observed in heart rate at both RER points of interest, meaning a shift in energy use occurred in most of our participants.​ ​The two graphs on the next slide show the differences in heart rate at RER of 0.85 and 1.0 before and after the intervention. Results provide strong support of Ticker Training efficacy and use of nutritional interventions for improving aerobic capacity.


  1. PNOE Analytics Metabolic Analyzer. 2018.
  2. InBody Body Composition Analyzer. 2018. 2019 InBody USA.
  3. Polar H10 Monitor
  4. SelfLoops.