Browsing by Author "Mendes, Joana"
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- Desenvolvimento das versões portuguesas dos questionários FRAIL Scale e SARC-F: Ferramentas de rastreio para a fragilidade física e sarcopeniaPublication . Faria, Ângela; Sousa-Santos, Ana Rita; Mendes, Joana; Limas de Sousa, Ana Sofia; Amaral, Teresa FA FRAIL Scale e a SARC-F são ferramentas válidas desenhadas respetivamente para o rastreio da fragilidade física e da sarcopenia. O presente trabalho teve como objetivo produzir versões validadas e adaptadas linguística e culturalmente para a língua portuguesa, mantendo equivalência conceitual às ferramentas originais. Para tal, foram seguidas as normas do Patient Reported Outcome (PRO) Consortium e aplicadas as doze etapas preconizadas para a obtenção do resultado final. As ferramentas foram aplicadas a uma amostra de conveniência da população alvo constituída por nove indivíduos, tendo se verificado que tanto a FRAIL Scale como o SARC-F mostraram ser de fácil compreensão e aplicação, ter boa aceitabilidade e validade aparente. As ferramentas produzidas neste trabalho poderão ser aplicadas tanto em contexto clínico como comunitário, no rastreio da fragilidade e da sarcopenia.
- Sitting time and associated factors among Portuguese older adults: results from Nutrition UP 65Publication . Sousa, Ana Sofia; Mendes, Joana; Guerra, Rita S.; Padrão, Patrícia; Moreira, Pedro; Santos, Alejandro; Borges, Nuno; Afonso, Cláudia; Martins, Cátia; Ferro, Graça; Amaral, Teresa F.Older adults are particularly susceptible to sedentary behaviours. Sitting time has been increasingly referred to as a potentially modifiable risk factor in the prevention of chronic diseases. Identifying factors associated with sitting time, particularly those that are modifiable, will allow for more effective public health strategies. This study aimed to describe sitting time among Portuguese older adults and to evaluate associated factors. A cross-sectional study including 1423 older adults ≥ 65 years old was conducted. Sitting time was assessed with the International Physical Activity Questionnaire. Socio-demographic, health, anthropometric and functional variables were collected. Bivariate and multivariate linear regression models were conducted to study the association between these variables and sitting time. The median of sitting time was 300 min/day (interquartile range = 240 min/day), which is equal to 5 h/day. The following factors were directly associated with longer sitting time: being male, age ≥ 80 years, living in Central or Southern Portugal, being retired from work, as well as presenting low physical activity, obesity or longer time to walk 4.6 metres. On the other hand, being married, having higher education and higher household income were inversely associated with longer sitting time. It can be concluded that Portuguese older adults spend a considerable amount of time sitting per day. Potentially modifiable risk factors associated with longer sitting time in this population were related to nutritional status and functional ability.
- The Effect of β-Hydroxy-β-Methylbutyrate on Muscle Strength and Functional Outcomes in Older AdultsPublication . Mendes, Joana; Guerra, Rita S.; Sousa, Ana S.Nutritional intervention is increasingly being recognized as playing an important role in functional status. The supplementation with β‑hydroxy-β-methylbutyrate (HMB), which is a metabolite of an essential amino acid, may be an effective nutritional intervention to improve muscle strength and functionality in older adults. The aim of this narrative review was to present an updated overview of the effects of HMB supplementation in older adults, specifically on muscle strength and functional outcomes. A PubMed database search was performed and only randomized controlled trial studies were included. More than half of the 14 analyzed studies reported that HMB supplementation improved muscle strength and other functional outcomes. HMB supplementation has demonstrated some promising effects on muscle strength and functional outcomes in older adults with different conditions of health and physical activity.