Objective.—To encourage increased participation in physical activity among Americans of
all ages by issuing a public health recommendation on the types and amounts of physical …

Many questionnaires have been developed to measure physical activity (PA), but an
overview of the measurement properties of PA questionnaires is lacking. A summary of this …

As modern lifestyles offer ever more opportunities for a sedentary existence, physical activity
has become, for many, a marginal aspect of life. Too little physical activity is linked to …

Despite extensive use over 40 years, physical activity questionnaires still show limited
reliability and validity. Measurements have value in indicating conditions where an increase …

Objective To develop and test a new single-item physical activity screening tool, suitable for
assessing respondents' eligibility for behaviour change interventions. Design Two single …

BACKGROUND: Dementia cases may reach 100 million by 2050. Interventions are sought
to curb or prevent cognitive decline. Exercise yields cognitive benefits, but few older adults …

Background Retrospective and cross-sectional data suggest that vigorous exertion can
trigger cardiac arrest or sudden death and that habitual exercise may diminish this risk …

Regular aerobic physical activity (PA) increases exercise capacity and physical fitness (PF),
which can lead to many health benefits. Accurate quantification of PA and PF becomes …

This study used a prospective design to test a model of the relation between social cognitive
variables and physical activity in a sample of 277 university students. Social support, self …

Research studies over the past several decades confirm the health benefits of regular
physical activity, a concept with foundations in antiquity. The effects of activity on certain …