Randomized controlled trial of effectiveness of pedometers on general practitioners' attitudes to engagement in and promotion of physical activity

Abstract

Pedometers have been identified as a tool for health professionals to promote physical activity. This study, which aimed to evaluate the effectiveness of wearing a pedometer on general practitioners' attitudes to promoting physical activity, was a pragmatic, multi-centred, randomized controlled trial within a primary care trust in England. The participants were 102 general practitioners (GPs). Eighty-five (48 males, 37 females) of the GPs completed pre and post questionnaires, 43 of whom were in the intervention group. Statistical analysis revealed no significant changes between the control and intervention groups for attitude to engage in physical activity (t ₈₃ = 1.13, CI ?0.362 to 0.099) or attitude to promote physical activity in their patients (t ₈₃ = 1.7, CI ?0.593 to 0.045). A higher volume of walking was significantly correlated with a more positive attitude to engage in physical activity (r = 0.58, P < 0.01) but not with a more positive attitude to promoting physical activity. Wearing a pedometer had no significant effect on GPs' attitudes to engaging in physical activity or promoting physical activity in their patients.     

Age,Physical Activity,Physical Fitness,Body Composition,and Incidence of Orthopedic Problems

Abstract

The incidence of orthopedic problems was examined in 5, 582 men and women who attended the Cooper Clinic in Dallas, Texas between 1974 and 1982. The effects of age, physical activity, physical fitness, and body mass index (EMI) on the occurrence of these problems were examined using a proportional hazards approach. The expected risk of orthopedic problems per person-year was 0.045 for men and 0.046 for women. For men, physical fitness, BMI, and physical activity were associated with orthopedic problems, while for women, physical activity was the main predictor. Age was not a factor for either gender. The effect of change in physical fitness, physical activity, and BMI was examined in a subset of 2, 325 persons with more than one visit to the clinic. For women, physical activity and a decrease in BMI were associated with orthopedic problems, while for men none of those factors were significant. Again, age was not a factor in either group. The absence of any age effect on the occurrence of problems suggests that with regard to orthopedic problems, moderate amounts of physical activity in generally healthy persons may be recommended without special consideration as to age.     

The Relation of Mild Traumatic Brain Injury to Chronic Lapses of Attention

We assessed the extent to which failures in sustained attention were associated with chronic mild traumatic brain injury (mTBI) deficits in cognitive control among college-age young adults with and without a history of sport-related concussion. Participants completed the ImPACT computer-based assessment and a modified flanker task. Results indicated that a history of mTBI, relative to healthy controls, was associated with inferior overall flanker task performance with a greater number of omission errors and more frequent sequentially occurring omission errors. Accordingly, these findings suggest that failures in the ability to maintain attentional vigilance may, in part, underlie mTBI-related cognition deficits.     

The effect of chalk on the finger–hold friction coefficient in rock climbing

The main purpose of this study was to examine the effect of chalk on the friction coefficient between climber's fingers and two different rock types (sandstone and limestone). The secondary purpose was to investigate the effects of humidity and temperature on the friction coefficient and on the influence of chalk. Eleven experienced climbers took part in this study and 42 test sessions were performed. Participants hung from holds which were fixed on a specially designed hang board. The inclination of the hang board was progressively increased until the climber's hand slipped from the holds. The angle of the hang board was simultaneously recorded by using a gyroscopic sensor and the friction coefficient was calculated at the moment of slip. The results showed that there was a significant positive effect of chalk on the coefficient of friction (+18.7% on limestone and +21.6% on sandstone). Moreover sandstone had a higher coefficient of friction than limestone (+15.6% without chalk, +18.4% with chalk). These results confirmed climbers' belief that chalk enhances friction. However, no correlation with humidity/temperature and friction coefficient was noted which suggested that additional parameters should be considered in order to understand the effects of climate on finger friction in rock climbing.     

The effects of early sexual abuse on adult risky sexual behaviors among persons with severe mental illness

OBJECTIVE: There were two aims: first, to examine the relationship between prior sexual abuse and three types of adult risky sexual behaviors [(1) ever traded sex for drugs or money, (2) had unprotected sex in the past 6 months, and (3) frequency of unprotected sex in the past 6 months] among persons with severe mental illness (SMI), and second, to examine the potential mediating effects of adult rape, substance use, and PTSD. METHOD: Using a pooled sample of individuals with SMI (N=609), logistic and negative binomial regression analyses were used to investigate the impact of prior sexual abuse on these adult risky sexual behaviors. RESULTS: Childhood sexual abuse was associated with having ever traded sex for money and having engaged in unprotected sex in the past 6 months. However, childhood sexual abuse was inversely associated with the number of times males had unprotected sex in the past 6 months. Results differed between males and females and the impact of potential mediators also varied by gender and type of outcome studied. CONCLUSION: These findings suggest a complex link between childhood sexual abuse and adult risky sexual behaviors in persons with SMI. Clinical assessments of child abuse sequelae should include a variety of indicators and parameters of adult risky sexual behavior, as persons with SMI are at an increased risk of engaging in high-risk sexual behaviors and tend to have a higher exposure to childhood sexual abuse than does the general population.     

The University and Purposeful Ethics

Written with the intent to argue for the purposeful place of ethics in the curriculum, this paper examines the role of the university in the knowledge society, the moral challenges that arise from this, and the importance of developing a pragmatic ethics.     

Family contexts of television

Educational technology research and development -     

Child abuse treated in a psychiatric day hospital

Actuarial, medical and social data are reported on 50 psychiatric day hospital patients known to have abused their children and 50 non-abusers undergoing treatment at the same time. A sub-group of 30 of each completed personality and intelligence tests and the majority had electroencephalograms, and these results were compared with those of a group of 30 healthy mothers selected by health visitors for positive child-rearing abilities.Findings which confirms those of other studies of child abuse include youthfulness, a higher incidence of family violence from childhood onwards, more unplanned pregnancies and lower intelligence in the index group. In this sample, however, all social classes were represented, there was no significant differences in perinatal pathology between the groups, personality scored showed high morbidity in the patient groups but few distinctive features, and EEGs were not significantly more abnormal in the index group than in the two contrast groups. Moreover, the index group did not show the expected discrepancy between verbal and performance sub-tests on the Wechsler Adult Intelligence Scale.Treatment of the 50 child-abusers with their children resulted in a re-injury rate of 8% during the four year period of study. A scheme for early identification and prevention is outlined.     

Mobiles and Cancer: A Case of Phony Connections?

Students learning statistics want to know how our methods are used in the real world. In response, this article offers a discussion of a relevant and timely medical study reported in recent headlines. Careful consideration of the study raises some ideas to get students engaged with statistics.     

Knowledge management implementation in the school context: case studies on knowledge leadership,storytelling, and taxonomy

Teachers and school administrators in Hong Kong have had to cope with more work and performance pressure as they strive to implement educational reforms aimed at deepening students’ life-long learning skills. Management systems, which save time and transfer ideas, experiences, and knowledge more efficiently could help schools meet reform goals and relieve the occupational stress that inevitably accompanies change and progress. This paper explores the effect of knowledge management (KM) for school development by reviewing three cases selected from a school improvement project entitled “Knowledge Management and Primary School Development”. The project was launched specifically to determine if KM practices can assist educators to cope with added pressures and rise to the challenges of education reforms. The case studies illustrate three separate approaches to incorporating KM systems. Problems faced by these case-schools included declining school competitiveness, time-consuming data storage and retrieval practices, and hierarchical communication structures that stunted feedback from the teachers who are on the front line of educational reform. Interviews were conducted with school principals, middle managers, and teachers. The results show that the core KM strategies of personalization and codification can be adopted to improve school development. Knowledge leadership, knowledge sharing culture, and knowledge management system support were identified as success factors for schools to implement KM.