This project was aimed to investigate cardiorespiratory fitness and the factors affecting cardiorespiratory fitness in healthy adults. The data obtained with this project will be normative values for the data obtained with CPET in healthy people.

Cardiorespiratory fitness is one of the 'health-related physical fitness' components of physical fitness and can be expressed as 'the ability of the heart, lung and vascular system to deliver oxygen and nutrients to working muscles'. Cardiopulmonary exercise testing (CPET) is a common procedure used to assess cardiopulmonary fitness, identify physiological factors limiting exercise, identify potential therapeutic targets for these factors, and evaluate the effects of an intervention. Therefore, in this project, it was aimed to investigate cardiorespiratory fitness and the factors affecting cardiorespiratory fitness in healthy adults. The data obtained with this project will be normative values for the data obtained with CPET in healthy people.

Inclusion Criteria:

• 18-65 years of age,
• Volunteering to participate in the study,
• Co-operation,
• Being able to ambulate.

Exclusion Criteria:

• Having any known respiratory, cardiac, neurological or other internal disease or malignant disease,
• Having any problem or musculoskeletal system disorder that prevents walking,
• To have undergone any surgery within the last six months

The study will include healthy adult subjects without any known internal disease.