Subject

• 47 years old, female
• No information about serious health concerns
• Body mass 276.6 lbs, body height 5.64 ft
• Body-mass-index (BMI): 42.4
• The person wants to start a regular fitness program
• Performs walking ~2h per week
• No former exercise tests

Issues

• Guidance and recommendations for training intensities
• Estimation of energy turnover during physical activity
• Estimation of the effect of physical activity on the modification of the body mass

Exercise test

• Multi stage test (walking) on a treadmill with blood lactate measurements
• 3 minutes step duration
• Walking speed constant at 5.0 km/h
• Starting at 0% treadmill incliniation
• 2.5% increase of treadmill inclination per step

Test results

Original output from Ergonizer (pdf)

Excerpt

• Maximal work rate: 10% treadmill inclination for 3.0 minutes
• Relative VO₂max (estimated): 26.9 ml/min/kg body weight
• The IAT ("individual anaerobic threshold") is found at a treadmill inclination of 7.5%
• This performance relates to a walking speed of 7:50 minutes per kilometer (12:36 minutes per mile)
• Recommended exercise intensity for an efficient energy turnover and fitness gain: heart-rate 163 to 171 bpm, walking speed 8:01 min to 8:22 min per kilometer (1.56 to 1.58 m/s) on flat surface
• At this exercise intensity, energy turnover is ~820 kcal/h

Interpretation

• Cardiopulmonary endurance capacity is on an improvable level
• With a walking speed of 6.0 to 6.5 km/h (flat surface) energy turnover seems to be optimal without preliminary exhaustion
• At this exercise intensity, a body mass of ~120 gram is metabolized per hour
• With further exercise tests in the future, success of the fitness program could be documented