Physical Activity Measurement: Objective and Subjective Methods

Abstract

The increase in sedentary lifestyle in daily life causes many chronic diseases, mainly cardiovascular and metabolic diseases. In order to protect and improve health, it is recommended that physical activity should be done at the desired level. However, in order to make suggestions for physical activity, first, it is necessary to determine the activity level by measuring the individual's physical activity. There are many methods of physical activity measurement, including subjective and objective ones. Among the commonly used methods, while questionnaires and logs constitute subjective methods, those making use of pedometers and accelerometers constitute objective methods. Each of these methods has advantages and disadvantages. Factors such as the reliability and validity of the measurement tool, acceptability by individuals, group size, age, gender, education, time, cost, and comorbidity must be considered when determining the measurement method based on the purpose of the research. In this context, in this review, commonly used physical activity measurement methods are examined, and the points to be considered in determining the measurement method are emphasized.