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Metabolic Heat Generation During Exercise. ME 340 Final Project Ryan Huff & Scott Wood. Experimental Setup. Goal: To determine the efficacy of dry release exercise shirts Procedure: Used 24 AFROTC Cadet Volunteers

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metabolic heat generation during exercise

Metabolic Heat Generation During Exercise

ME 340 Final Project

Ryan Huff & Scott Wood

experimental setup
Experimental Setup
  • Goal: To determine the efficacy of dry release exercise shirts
  • Procedure:
    • Used 24 AFROTC Cadet Volunteers
    • Measured body temperature from the armpit using a thermocouple before and after exercise
    • Performed a 23 factorial experiment
    • Three Factors:
      • Exercise Length (5/10 min)
      • Exercise Type (Run/Walk)
      • Shirt Type (DryRel/Cotton)
analytical model

Shirt

Heat Source

Control Surface

Analytical Model

Tb

  • Energy Balance:
  • Assumptions
    • Model body as long cylinder
    • Conduction through the muscles to the skin
    • Convection and radiation from the skin to the environment
    • (ε = 1)

Ts

Air, T∞

experimental results
Experimental Results

Shirt Type

DryRelease

Cotton

Shirt Type

Ex Type

Interaction P-values

Shirt Type*Ex Type 0.10

Shirt Type*Ex Length 0.01

Ex Type*Ex Length 0.08

Shirt Type*Ex Type*Ex Length 0.04

Ex Length

conclusions
Conclusions
  • Dry Release Shirt had an effect on body temperature during exercise
  • Using a Dry Release shirt will better maintain core body temperature during activity
  • Model only works for data collected and range specified
  • Further study and modeling need to be performed
recommendations
Recommendations
  • Length of exercise
    • 20 and 50 minutes
    • Should use heart rate monitors to ensure more uniform exercise intensity
  • Measurement Accuracy
    • Use thermocouples with faster response
    • Measure body temperature from a different location…uh oh, where?