The effects of diet on levels of physical activity during winter in forensic inpatients - A randomized controlled trial

Vitamin D Status and Physical Activity during Wintertime in Forensic Inpatients-A Randomized Clinical Trial

This study aimed to gain deeper knowledge about the relationship between vitamin D and physical activity in a sample of forensic inpatients. Sixty-seven male forensic inpatients participated. Participants were randomly assigned into an Intervention group (vitamin D) or a Control group (placebo). The Physical Activity–Rating (PA-R) questionnaire was used to measure physical activity from January to May. Vitamin D status was measured as 25-hydroxy vitamin D (25-OHD) pre- and post-intervention. The results revealed that vitamin D status at post-test was positively correlated with physical activity, but there was no effect of vitamin D supplementation looking at the two randomized groups. However, controlling for body mass index (BMI), the results showed an effect of BMI and a main effect of groups with a higher level of physical activity in the Intervention group. No interaction effects were found. Participants were also assigned into High and Low vitamin D groups based on the vitamin D status at post-test; i.e., the upper (75.1 nmol/L) and lower quartile (46.7 nmol/L). T-tests revealed that participants with a vitamin D status above 75 nmol/L showed significantly higher levels of physical activity than participants with a vitamin D status below 46.7 nmol/L. Thus, a vitamin D status above 75 nmol/L seems to be an optimal level.

Dietary Pattern and Its Correlates among Lithuanian Young Adults: Mediterranean Diet Approach

A poor diet leads to serious health risks and accounts for a significant proportion of deaths. Young adults are the population whose health behaviors particularly need to be studied in terms of nutrition because they are in a period of life when the effects of nutrition accumulate to health outcomes that usually appear later in life in forms of disease or infirmity. The aim of this study is to examine the dietary pattern and its relationships with physical activity and covariates, such as body mass index, gender, age and education among Lithuanian young adults of 18-36 years old. A cross-sectional study was performed among Lithuanian young people aged 18-36 years. Snowball sampling-a non-probability, convenient sampling strategy-was used. In total, data were collected from 3031 study participants: 1723 (56.8%) were male and 1308 (43.2%) were female. The mean age was 23.72 ± 4.80 years. Adherence to a dietary pattern was evaluated using the Mediterranean Diet Adherence Screener (MEDAS). Physical activity, height, weight and education data were also gathered. About 7% of young people fully complied with the health-related Mediterranean diet, and one-third had poor compliance. Non-compliance is mostly related to the underconsumption of olive oil, nuts, fish, seafood, legumes and wine, as well as the overconsumption of red meat. The female gender (β = 0.26; p < 0.01), higher education (β = 0.30; p < 0.01) and a sufficient level of physical activity (β = 0.15; p < 0.01) predict a healthier diet. These study results should be considered by nutrition policymakers and public health authorities to improve policies and develop intervention plans for improving the nutrition habits of young adults in order to prevent health-damaging outcomes later in their life.