Exploring Lifestyle Habits, Physical Activity, Anxiety and Basic Psychological Needs in a Sample of Portuguese Adults during COVID-19

This cross-sectional study aimed to characterize the lifestyle habits, anxiety levels and basic psychological needs (BPN), in Portuguese adults during the Coronavirus Disease 2019 (COVID-19) pandemic, including a comparison between genders and age groups. In total, 1404 adults (36.4 ± 11.7 years; 69.6% female) answered sociodemographic data and three instruments: the International Physical Activity Questionnaire, the Basic Need General Satisfaction Scale and the State-Trait Anxiety Inventory. Males revealed higher values for the total energy expenditure (z = -2.26; <i>p</i> = 0.024; η 2 = 0.004) and for the level of satisfaction of competence (z = -2.62; <i>p</i> = 0.009; η 2 = 0.005). Females showed higher scores for the anxiety state (z = -7.87; <i>p</i> ≤ 0.001; η 2 = 0.044) and anxiety trait (z = -6.49; <i>p</i> ≤ 0.001; η 2 = 0.030). Regarding age, higher values for the anxiety trait (<i>p</i> ≤ 0.001; η H 2 = 0.030) were found in the 18-34 years-old group compared to all the other age groups, also presenting significantly higher values of total energy expenditure (χ² = 13.93; <i>p</i> = 0.008; η H 2 = 0.007) when compared to the 35-44 years-old group. Significant differences were observed between the 18-34 years-old group and the other age groups for the satisfaction of competence (χ² = 40.97; <i>p</i> ≤ 0.001; η H 2 = 0.026), except for the >65 years-old group. Strategies for promoting well-being during periods of social isolation should consider the role of psychological dimensions and lifestyle habits according to the gender or age group.