RESUMO
Engaging in social interaction and physical movement during everyday activities has a positive influence on wellbeing in later life. For older adults who age in place, the majority of activities occur indoors, yet studies typically focus on outdoors. Gender influences social and physical activities but is understudied in an ageing-in-place context. We aim to address these gaps by increasing insight into the indoor activities in later life, with a focus on gender differences in social interaction and physical movement. Through a mixed-methods approach, data were collected using global positioning system (GPS) trackers, pedometers and activity diaries. Twenty community-dwelling older adults (11 women and 9 men) who were living in Lancashire collected these data over seven days. An exploratory spatio-temporal analysis was conducted on the 820 activities they undertook. We discovered that our participants spend large amounts of time indoors. We also found that social interaction increases the duration of the activity and, conversely, decreases levels of physical movement. When zooming in to gender differences, men's activities took significantly longer than women's activities and were characterised by higher level of social interaction. Based on these results, we argue that there is a trade-off between social interaction and physical movement in everyday activities. We suggest establishing a balance between socialising and moving in everyday activities in later life, specifically because maintaining high levels of movement and social interaction at the same time seems unachievable. In conclusion, it is important to design indoor environments that facilitate choice between being active and resting, and between being social and being on one's own rather than assume they are mutually-exclusive and/or universally "good" or "bad" per se.
Assuntos
Vida Independente , Homens , Masculino , Humanos , Idoso , Feminino , Envelhecimento , Exercício FísicoRESUMO
BACKGROUND: Cention N has been introduced as an alternative material for amalgam. The purpose was to investigate the flexural strength and microhardness of this material in self-cure and dual-cure modes before and after thermocycling. MATERIALS AND METHODS: In this experimental study, 40 samples of Cention N were prepared in order to determine and compare the microhardness. Half of the samples were set by self-cure method and the other half with dual-cure method. The Vickers microhardness test was performed once after 24 h and again after 10000 thermocyclings. Three-point flexural test was used to determine and compare the flexural strength of 52 rod-shaped samples. Half of the samples were set by self-cure method and the other half with dual-cure method. Among 26 samples in each group, 13 samples were randomly selected and three-point flexural test was performed after 24 h and for another 13 samples after 10,000 thermocyclings. Data were analyzed using two-way ANOVA and paired samples t-test (P < 0.05). RESULTS: There was a statistically significant difference between the mean of microhardness values in two curing methods (P < 0.001) and in two storage conditions (P < 0.001). The mean of dual-cure microhardness (100.99 ± 7.22) was higher than that of self-cure (64.61 ± 12.51) and the mean value associated with pre-thermocycling (89.75 ± 15.84) was higher than that of the post-thermocycling (76.44 ± 23.56). There was no statistically significant difference between the mean flexural strength in the two curing methods (self-cure [72.85 ± 16.26], dual cure [79.87 ± 23.07]; [P > 0.05]). However, the mean flexural strength without thermocycling (85.98 ± 21.74) was higher than that of the thermocycled group (64.24 ± 6.40) (P < 0.001). CONCLUSION: The microhardness of Cention N in dual-cure mode was higher than that of self-cure mode, but the flexural strength of dual-cure was not significantly different from that of self-cure. Thermocycling had a significant effect on the microhardness and flexural strength.
