Older adults' physical activity after lockdown: Testing the health action process approach and the moderating role of fear of Covid-19.

The coronavirus pandemic has influenced many lives, particularly older adults'. Although isolation protects from infection, health behaviors like physical activity (PA) are important to reinstate after lockdown. However, fear of Covid-19 may act as a barrier, for example, by preventing people from going outside. Based on the health action process approach (HAPA), we investigated whether and why older adults' PA changed after lockdown, and whether fear of Covid-19 moderates the intention-behavior relationship. Participants of this longitudinal study aged 65+ from German-speaking Europe completed an online questionnaire about their PA, fear of Covid-19, and HAPA factors in April and May 2020. Data were analyzed using multiple linear regressions. Results showed that moderate to vigorous activity (MVPA) remained stable after lockdown and that self-efficacy most robustly influenced the intention to be active. PA was not explained by any volitional factor but was strongly related to past PA. Interestingly, the relationship of past and future MVPA was attenuated by fear of Covid-19, but this finding was not robust when outliers were removed. In conclusion, self-efficacy is the most important motivator for PA in older adults after an interruption like a lockdown. Strong physical activity habits may facilitate PA after a period of isolation

Fostering cognitive performance in older adults with a process- and a strategy-based cognitive training.

The present study investigates the impact of process-based and strategy-based cognitive training to boost performance in healthy older adults. Three groups trained with either a dichotic listening training (process-based training, n = 25), an implementation intention strategy training (strategy-based training, n = 23), or served as a non-contact control group (n = 30). Our results demonstrated that training participants improved their performance in the trained tasks (process-based training: d = 3.01, strategy-based training: d = 2.6). For untrained tasks, the process-based training group showed significant working memory (d = .58) as well as episodic memory task improvement (d = 1.19) compared to the strategy-based training and to the non-contact control group (all d < .03). In contrast, in the strategy-based training group there was a tendency towards some performance gain in a fluid intelligence test (d = .92). These results indicate that cognitive training can be tailored to improve specific cognitive abilities

What is the Role of Self-Determination for Improvement of Physical Activity in Older Adults?

In this mixed-methods study, we will examine the role of self-determination for the improvement of physical activity in older adults. A within-person intervention study with intensive-longitudinal assessment (35 days) is planned where participants (targeted N = 20) formulate a physical activity goal and corresponding implementation intentions. During the intervention period, participants will additionally get an autonomy-supportive intervention consisting of being provided with the opportunity to review and alter their goals and implementation intentions. Before and after the intervention, a subsample of participants will be interviewed regarding their physical activity and acceptability of the intervention