Cuantificación de la actividad física en personas mayores

Doubly labelled water is the most accurate method and is considered the gold standard. Because it is expensive, few studies have used this method in older people. A physical activity questionnaire is the simplest and least expensive method but most questionnaires have been validated in young people and adults. Therefore, a questionnaire specifically designed for older people, such as the Physical Activity Scale for the Elderly, the YALE Physical Activity Survey or the CHAMPS Physical Activity Questionnaire, is required. Motion sensors have also been used for physical activity assessment in older people. Future studies should determine whether these devices are useful for assessing low-intensity physical activity in older people.