Exposures to ionizing radiation frommedical examinations are on the rise. An important cause for this has been the advent and ever-increasing use of computed tomography (CT) scans for diagnostic purposes. It is often implied that population aging contributes significantly to this rise. Here, the trends …

Little consensus has emerged about how organizational performance should be defined and measured. Most studies have used traditional approaches to give their own perspective about organizational performance and effectiveness, but none have recently tried to encompass these different views into one unified …

BACKGROUND: Although physical activity is beneficial for Parkinson's disease (PD) patients, many do not meet the recommended levels. The range of physical activity among sedentary PD patients is unknown, as are factors that determine this variability. Hence, we aimed to (1) assess daily physical activity …

BACKGROUND: Due to the rapidly increasing number of older people worldwide, the prevalence of frailty among older adults is expected to escalate in coming decades. It is crucial to recognize early onset symptoms to initiate specific preventive care. Therefore, early detection of frailty with appropriate …

The Dutch version of the Brief Illness Perception Questionnaire is an appropriate instrument for measuring patients' perceptions in acute low back pain patients, showing acceptable internal consistency and reliability. Concurrent validity is adequate, however, the instrument may be unsuitable for detecting …

Due to the increasing competition non-profit sport organizations face from other sport providers (both for-profit and non-profit), they are encouraged to better satisfy their members’ expectations. New initiativesor innovations may need to be adopted by these organizations to attract and retain members. …

The increasing commercialisation of the sports sector and changing consumer demands are some of the issues that create challenges for non-profit sports in contemporary society. It is important for managers and marketers of these organisations to innovate because innovation is a way to grow within a competitive …

In very old and/or frail older people living in long-term care facilities, physical inactivity negatively affects activities of daily living. The main reason to assess older adults' perceived fitness is to establish the relation with their beliefs about their ability to perform physical activity adjusted …

QUESTION: Do negative expectations in patients after the onset of acute low back pain increase the odds of absence from usual work due to progression to chronic low back pain? DESIGN: Systematic review with meta-analysis of prospective inception cohort studies. PARTICIPANTS: Adults with acute or subacute …

QUESTION: In adults who experience nocturnal leg cramps, does stretching of the calf and hamstring muscles each day just before sleep reduce the frequency and severity of the cramps? DESIGN: A randomised trial with concealed allocation and intention-to-treat analysis. PARTICIPANTS: Eighty adults aged …