The investigators think that "The Active-Q: Physical Activity Questionnaire" will help physiotherapists and other health professionals in the field and in the field to evaluate individuals' physical activity by revealing their energy consumption values. Therefore, it was aimed to make this scale available to Turkish healthcare professionals by conducting the Turkish validity and reliability study.

Individuals forming modern societies along with technological developments are increasingly adopting sedentary lifestyle. This situation increases the risks in terms of morbidity and mortality. For this reason, especially all countries build their health policies on increasing physical activity and make strides to improve it. In order to reach the ideal physical activity level, the physical activity level should be evaluated. However, when the literature is evaluated, it is possible to come across different and many physical activity evaluation methods. This makes it difficult to compare. On the other hand, many researchers prefer to use scales and surveys because of their low costs and ease of use. Although there are many physical activity assessment scales in the literature based on age, gender, disorder or disease, social needs and other features, many of them cannot be used in our society because they are not Turkish. This poses an important obstacle for Turkish researchers to evaluate physical activity.

"The Active-Q: Physical Activity Questionnaire" is a web-based scale developed to investigate the absence of physical activity and activity for individuals over the age of 18. Individuals are asked to answer questions about their activity habits in the past year. By developing the scale, Bonn et al. Tested its validity and reliability comparatively with the 'Double labeled water' method and the accelerometer.

The investigators think that "The Active-Q: Physical Activity Questionnaire" will help physiotherapists and other health professionals in the field and in the field to evaluate individuals' physical activity by revealing their energy consumption values. Therefore, it was aimed to make this scale available to Turkish healthcare professionals by conducting the Turkish validity and reliability study.

Inclusion Criteria:

• to be a native Turkish speaker
• to be a volunteer

Exclusion Criteria:

• to make any form of weight alternation diet
• to be pregnant
• to have given birth during last 1 year
• to have any chronic and/or orthopedic disease/problem/syndrome
• to have any traumatic injury or any form of surgery during last 1 year

Healthy participants of both sexes, aged 20 to 65 years recruited in this study.