Description

A sealed envelope lottery will be conducted for randomization with a three-arm randomized controlled trial design (XKS, NSS, and CG) with a simple double-blind design (raters and participants). The randomizer's website (https://www.randomizer.org) will be used to carry out the randomization process. The CONSORT guidelines method will be used (Turner et al., 2012). Fifty-two older women initially participated in the intervention. Following previous studies (Hernandez Martínez et al., 2022; Queiroz et al., 2017), the minimum difference needed for significant clinical relevance was a mean difference of 0.60 seconds in TUG, with a standard deviation of 0.20 seconds. An alpha level of 0.05, a power of 85% and an anticipated loss of 20% were considered. The Gpower program (version 3.1.9.6, Franz Faul, Universiät Kiel, Kiel, Germany) was used to calculate the statistical power. The inclusion criteria are as follows: (i) older women, between 60 and 65 years of age; (ii) who did not present cognitive impairment with a score on the Mini-Mental State Examination ≤21 points (Ministerio de Salud, 2013); (iii) who did not present visual difficulty and/or vestibular impairment that would make it difficult to play the games in front of the screen; (iv) who were independent, defined by having at least a score of 43 points on the Chilean Ministry of Health's Preventive Medicine Examination for Older Adults (Ministerio de Salud, 2013); (v) who could meet the attendance requirement of at least 85% of the sessions scheduled for the intervention; (vi) physically inactive who did not meet the international recommendations for moderate (<150 to 300 minutes) or vigorous (<75 to 150 minutes) physical activity (Bull et al., 2020); and (vii) physical condition compatible with the practice of physical activity. As for exclusion criteria, the following were taken into account (i) being afflicted with a disability; (ii) suffering from a musculoskeletal injury or receiving physical rehabilitation therapy, which prevents them from performing their usual physical activity; and (iii) being temporarily or permanently unable to perform physical activity.

By approving the use of the data for scientific purposes by signing an informed consent form, all participants acknowledged the inclusion criteria for the use and treatment of the data. The protocol was created by the Declaration of Helsinki and approved by the scientific ethics committee of the Universidad Católica del Maule, Chile (Approval number: N°29-2022).