Características de los programas de entrenamiento de fuerza muscular en personas mayores con sarcopenia. Revisión de alcance

Objective: The aim of this scoping review was to analyze the resistance training-based programs’ characteristics and outcomes of physical and psychological health and cognitive functions measured in older adults with sarcopenia. Method: This scoping review was carried out following the criteria and flow diagram established in the PRISMA guidelines and included studies from 2011 until 2020 from electronic databases, including PubMed, Scopus, and Web of Science. Results: A total of 13 randomized controlled trials were included. The sample's average age was 72.2 years, with an age range between 71 and 80 years, considering a total sample of 1029 older adults (57% women). Resistance training-based programs were carried out mainly in university facilities, presented high adherence (91.2%) and were able to induce increase in strength and muscle mass. The most frequent parameters used were 2-3 weekly, 50-90-min-long sessions for 3-9 months, using between 8 and 15 repetitions, in an intense training zone with 1-RM between 60% and 85%. The most measured physical health outcomes were muscle strength, muscle mass, and BMI. Cognitive impairment was frequently evaluated, and few studies evaluated mental health. Conclusion: This review characterized resistance training-based programs in older people with sarcopenia, highlighting the extension, frequency, duration, and intensity of these, as well the most frequently used outcome measures and instruments. These results could be useful for prescribing future resistance training-based programs in older adults with sarcopenia.