App-assured essential physical activity for the prevention of cognitive decline: changing paradigms in public health – a study protocol for a randomised controlled trial: A study protocol of the PA PROTECT study. JMS [Internet]. 2021 Sep. 1 [cited 2025 Jul. 4];90(4):e530. Available from: https://jmsnew.ump.edu.pl/index.php/JMS/article/view/530