RESUMO
BACKGROUND: Ergonomics programmes addressed to children fit the health-promoting schools (HPS) framework. Beyond the integration of ergonomics in curricula, an important aspect is the effectiveness of the programme. This pilot study aims to evaluate the effectiveness of the programme proposed to a sample of middle-school children (aged 10-13 years) of the metropolitan city of Cagliari. METHODS: The programme was designed along the lines of the INAIL (Italian National Institute for Insurance against Accidents at Work) scheme and proposed to 260 children. It consisted of three phases: 1) assessment of students' background with a pre-intervention questionnaire (completed by 142 students); 2) teaching of the ergonomics training modules and evaluation of the weight of a sample of 160 backpacks, and of students' perception to be able to sit by putting their feet on the ground; 3) evaluation of conceptual understanding of ergonomics concepts with a post-intervention questionnaire (completed by 107 students out of the 142 students who completed phase 1). RESULTS: There was a substantial improvement in the percentage of correct responses post-intervention, confirmed by the chi-square test, regarding concepts about ergonomics, backpack weight and handling. Most of the backpacks exceeded the maximum allowed value, and 20% of students were perceived to be unable to sit putting their feet on the ground. CONCLUSIONS: The practical application of ergonomics pedagogy proved effective in the school setting and should be integrated into school curricula. The prevention technicians can offer a holistic approach, while the teachers are essential to implement the programme on a large scale. Effectiveness evaluation is necessary to guide resource allocation and implement and sustain the HPS approach. A tailored programme has a greater chance of reaching its target audience and maximizing effectiveness.
RESUMO
Over the last two decades, our understanding of clinical and pathophysiological aspects of sleep-related epileptic and non-epileptic paroxysmal behaviours has improved considerably, although it is far from complete. Indeed, even if many core characteristics of sleep-related hypermotor epilepsy and non-rapid eye movement parasomnias have been clarified, some crucial points remain controversial, and the overlap of the behavioural patterns between these disorders represents a diagnostic challenge. In this work, we focused on segments of multichannel sleep electroencephalogram free from clinical episodes, from two groups of subjects affected by sleep-related hypermotor epilepsy (N = 15) and non-rapid eye movement parasomnias (N = 16), respectively. We examined sleep stages N2 and N3 of the first part of the night (cycles 1 and 2), and assessed the existence of differences in the periodic and aperiodic components of the electroencephalogram power spectra between the two groups, using the Fitting Oscillations & One Over f (FOOOF) toolbox. A significant difference in the gamma frequency band was found, with an increased relative power in sleep-related hypermotor epilepsy subjects, during both N2 (p < .001) and N3 (p < .001), and a significant higher slope of the aperiodic component in non-rapid eye movement parasomnias, compared with sleep-related hypermotor epilepsy, during N3 (p = .012). We suggest that the relative power of the gamma band and the slope extracted from the aperiodic component of the electroencephalogram signal may be helpful to characterize differences between subjects affected by non-rapid eye movement parasomnias and those affected by sleep-related hypermotor epilepsy.