2.2. Participants
DEL
Twenty-eight older women initially participated in the intervention. The sample size calculation indicated that the ideal number of participants per group is 16. Based on previous studies (All participants accepted the inclusion criteria for the usage and handling of the data by signing an informed consent form authorizing the use of the information for scientific purposes. The protocol was approved by the scientific ethics committee of the Universidad Católica del Maule, Chile (Number: N°29-2022) and was developed following the Declaration of Helsinki.