Funding for this research was provided by:
Fonds Wetenschappelijk Onderzoek (FWO12I1117, B/13018/01, FWO12/PDO/158)
Australian Research Council (FT14010085)
University Grant Committee (HKU 741511H)
Received: 31 March 2020
Accepted: 4 June 2020
First Online: 9 June 2020
Ethics approval and consent to participate
: The Active Lifestyle and the Environment in Chinese Seniors (ALECS) project was approved by the ethics committee of the Department of Health (Hong Kong Special Administrative Region, Hong Kong Special Administrative Region) and the University of Hong Kong Research Ethics Committee for Non-Clinical Faculties (ethics approval no.: EA27021), while the Belgian Environmental Physical Activity Study on Seniors (BEPAS Seniors) was approved by the Ethics Committee of the Ghent University Hospital (ethics approval no.: B670201423000). The studies were performed in agreement with the Helsinki declaration and its amendments, and in accordance with local legislations. All participants provided signed informed consent before participation in the studies.
: Not applicable.
: The authors declare that they have no conflict of interest.