Pd Cooley

A randomised control trial of the cognitive effects of working in a seated as opposed to a standing position in office workers

Abstract Sedentary behaviour is increasing and has been identified as a potential significant health risk, particularly for desk-based employees. The development of sit-stand workstations in the workplace is one approach to reduce sedentary behaviour. However, there is uncertainty about the effects of sit-stand workstations on cognitive functioning. A sample of 36 university staff participated in a within-subjects randomised control trial examining the effect of sitting vs. standing for one hour per day for five consecutive days on attention, information processing speed, short-term memory, working memory and task efficiency. The results of the study showed no statistically significant difference in cognitive performance or work efficiency between the sitting and standing conditions, with all effect sizes being small to very small (all ds < .2). This result suggests that the use of sit-stand workstations is not associated with a reduction in cognitive performance. Practitioner Summary: Although it has been reported that the use of sit-stand desks may help offset adverse health effects of prolonged sitting, there is scant evidence about changes in productivity. This randomised control study showed that there was no difference between sitting and standing for one hour on cognitive function or task efficiency in university staff.

The effect of an e-health intervention designed to reduce prolonged occupational sitting on mean arterial pressure

Objective: To evaluate the effect of a workplace health intervention designed to reduce prolonged occupational sitting on the mean arterial pressure (MAP) of desk-based employees. Methods: This randomized controlled trial involved an experimental group who received an e-health intervention and a control group who did not. The 13-week intervention passively prompted participants to stand and engage in short bouts of office-based physical activity by interrupting prolonged occupational sitting time periodically throughout the workday. Mean arterial pressure was measured at pretest and posttest. Results: Between pretest and posttest the experimental group significantly reduced their MAP, whereas MAP in the control group did not. Conclusions: A workplace e-health intervention designed to reduce prolonged occupational sitting was effective in decreasing MAP in desk-based employees.

Caution regarding exergames: a skill acquisition perspective

ABSTRACT Background: The advent of technology use in physical education is upon us. But the implications of using exergames as a substitute for traditional physical education instruction for some students raise questions. Although exergames have the potential to increase energy expenditure and motivation in some children, it is less clear whether they can provide skill acquisition benefits that are similar to those found in traditional physical education. Purpose: In a previous experiment from our laboratory, we found that deliberate practice can significantly reduce the planning time required for lateral arm movements. The purpose of this study was to determine if exergames can produce a similar effect, by reducing the processing time required for children to initiate arm movements to the contralateral and ipsilateral space. Participants and setting: Thirty children (boys = 15, girls = 15), between the ages of 7 and 12 years, participated in a pre- and post-test each taking 30 min and one 30 min treatment session in a university laboratory. Research design: A repeated measures design was employed to test the effects of deliberate laterality practice on processing speed. Children were randomly assigned (n = 10) to either a Nintendo Wii tennis contralateral movement experimental group, Nintendo Wii bowling ipsilateral movement experimental group, or handheld video-game control group. Each child participated in one 30 min treatment session. Data collection: Upper extremity choice reaction time (RT) was measured through 27 goal-directed aiming movements for each arm separately, during the pre-test and post-test. The stimulus–response trials occurred in three randomly presented directions (ipsilateral, contralateral, and midline). Data analysis: A 3 (treatment group) × 2 (age group) × 2 (test) × 3 (direction) mixed design analysis of variance with repeated measures on the last two factors was used to test for significant differences, with an alpha level set at 0.05. Findings: There were no significant treatment effects on RT across all groups indicating that a short bout of exergame training was unsuccessful in improving lateral movement processing. Conclusions: Deliberate laterality practice using exergames did not improve the motor processing speed of lateral arm movements in the same manner of traditional physical education as indicated by our previous research. Explanations as to why exergames do not exhibit the same positive transfer for skill acquisition as traditional physical education instruction are discussed within this paper.

Towards a measure of gender-related challenges faced by male primary teachers

Debate about teacher gender balance in primary education is a constant. This debate is fuelled by recommendations to increase recruitment and retainment of males into primary education. In parallel, 10-year trend data indicate a continual decrease in male primary school teachers. Although many factors contribute to the decreasing percentage of male primary teachers, one factor is the gender-related challenges they face in their profession. Previous research has identified some of these challenges; however, a limitation of these claims is contextual and individually bound data derived from qualitative research methods. Large-scale interventions have not been realised as current trends are unable to be generalised to the wider population of male primary teachers. Thus, the aim of this paper is to expand upon previous literature through discussing the development and validation of a scale which quantifies the gender-related challenges faced by male primary teachers.