RESUMO
We examined how GPS and accelerometer measured work-related and commuting physical activity contribute to changes in physical activity and sedentary behavior during the retirement transition in the Finnish Retirement and Aging study (n = 118). Lower work-related activity was associated with a decrease in sedentary time and an increase in light physical activity during retirement. Conversely, higher work-related activity was associated with an increase in sedentary time and a decrease in light physical activity, except among those active workers who also were active commuters. Thus, both work-related and commuting physical activity predict changes in physical activity and sedentary behavior when retiring.
Assuntos
Exercício Físico , Aposentadoria , Comportamento Sedentário , Humanos , Acelerometria , Meios de TransporteRESUMO
The role of pH in determining the environmental fate of [14C]aldicarb was examined in an aquatic microcosm. Only minor amounts of the radiochemical were absorbed by aquatic organisms at any pH. Of the radioactivity absorbed, greater than 75% was rapidly metabolized and incorporated into tissues. Minor differences in the in vivo spectrum of aldicarb and metabolites as a function of pH were discerned for fish; the quantitative and qualitative distribution of aldicarb and its metabolites was identical for the other organisms across the pH levels. The most notable difference in metabolite spectrum appearing in the water as a function of pH was the absence of aldicarb sulfone at pH 4 on Day 6. In contrast, aldicarb sulfoxide was found as the major metabolite and aldicarb was completely lacking at all three pH levels. Since aldicarb sulfoxide is biologically active, disappearance of the parent compound does not eliminate hazard. The general effects of pH on the environmental fate of aldicarb are negligible on Day 6 but may be more pronounced at other time periods.
