Navegando por Autor "Freire, Yuri Alberto"

Agora exibindo 1 - 3 de 3

Agreement between upper and lower limb measures to identify older adults with low skeletal muscle strength, muscle mass and muscle quality
(PLoS One, 2022-01) Fayh, Ana Paula Trussardi; Alves, Charles Phillipe de Lucena; Câmara, Marcyo; Macêdo, Geovani Araújo Dantas; Freire, Yuri Alberto; Silva, Raíssa de Melo; Pereira, Ronildo Paulo; Farias Júnior, Luiz Fernando; Mortatti, Arnaldo Luis; Costa, Eduardo Caldas
Background: Identifying low skeletal muscle strength (SMS), skeletal muscle mass (SMM) and skeletal muscle quality (SMQ) is pivotal for diagnosing sarcopenia cases. Age-related declines in SMS, SMM, and SMQ are dissimilar between the upper (UL) and lower limbs (LL). Despite this, both UL and LL measures have been used to assess SMS, SMM and SMQ in older adults. However, it is not clear whether there is agreement between UL and LL measures to identify older adults with low SMS, SMM and SMQ. Objective: To investigate the agreement between UL and LL measures to identify older adults with low SMS, SMM and SMQ. Methods: Participants (n = 385; 66.1 ± 5.1 years; 75,4% females) performed the handgrip strength test (HGS) and the 30-s chair stand test (CST) to assess UL- and LL-SMS, respectively. The SMM was assessed by dual-energy X-ray absorptiometry (DXA). The UL-SMQ was determined as: handgrip strength (kgf) ÷ arm SMM (kg). LL-SMQ was determined as: 30-s CST performance (repetitions) ÷ leg SMM (kg). Results below the 25th percentile stratified by sex and age group (60–69 and 70–80 years) were used to determine low SMS, SMM and SMQ. Cohen’s kappa coefficient (κ) was used for the agreement analyses. Results: There was a slight and non-significant agreement between UL and LL measures to identify older adults with low SMS (κ = 0.046; 95% CI 0.093–0.185; p = 0.352). There was a moderate agreement to identify low SMM (κ = 0.473; 95% CI 0.371–0.574; p = 0.001) and a fair agreement to identify low SMQ (κ = 0.206; 95% CI 0.082 to 0.330; p = 0.005). Conclusion: The agreement between UL and LL measures to identify older adults with low SMS, SMM and SMQ is limited, which might generate different clinical interpretations for diagnosing sarcopenia cases
Efeito do tempo sentado prolongado sobre marcadores cardiometabólicos em adultos fisicamente ativos e inativos: um estudo piloto
(Revista Brasileira de Atividade Física & Saúde, 2019-08) Fayh, Ana Paula Trussardi; Macêdo, Geovani Araújo Dantas; Freire, Yuri Alberto; Browne, Rodrigo Alberto Vieira; Farias-Junior, Luiz Fernando; Cabral, Ludmila Lucena Pereira; Souto, Gabriel Costa; Sousa, Iasmin Matias de; Farias Júnior, José Cazuza de; Costa, Eduardo Caldas
O objetivo deste estudo foi analisar o efeito do tempo sentado prolongado sobre marcadores cardio-metabólicos em adultos fisicamente ativos e inativos. Participaram do estudo 10 adultos fisicamente ativos (27,30 ± 4,90 anos de idade) e 11 fisicamente inativos (26,27 ± 3,17 anos de idade). Todos realizaram uma sessão de tempo sentado prolongado de 10 horas, com quatro refeições padroniza-das. Os níveis de glicose e pressão arterial foram mensurados no jejum, antes e 1 hora após cada refeição e também 2 horas após o almoço. Os níveis de triglicerídeos foram medidos no jejum, 2 e 3,5 horas após o almoço. O modelo linear generalizado foi utilizado para comparar a área sob a curva incremental (ASCi) dos níveis de glicose e triglicerídeos e a área sob a curva (ASC) dos níveis de pressão arterial entre os grupos, com ajuste pelos valores de linha de base. O grupo fisicamente ativo apresentou menor ASCi para os níveis de glicose no período de 10 horas (β = -5,55 mg/dL/10h; IC95%: -9,75; -1,33; p = 0,010) e no período da manhã (β = -7,05 mg/dL/5h; IC95%: -12,11; -1,99; p = 0,006) comparado ao grupo fisicamente inativo. Não houve diferença da ASCi dos triglicerídeos (p = 0,517) e na ASC da pressão arterial (p = 0,145) entre os grupos. Em conclusão, adultos fisicamente ativos apresentaram melhor controle glicêmico comparados àqueles fisicamente inativos durante a exposição a tempo sentado prolongado
Effect of breaks in prolonged sitting or low-volume high-Intensity interval exercise on markers of metabolic syndrome in adults with excess body fat: a crossover trial
(Journal of Physical Activity and Health, 2019-07) Fayh, Ana Paula Trussardi; Freire, Yuri Alberto; Macêdo, Geovani de Araújo Dantas de; Browne, Rodrigo Alberto Vieira; Farias-Junior, Luiz Fernando; Bezerra, Ágnes Denise de Lima; Farias Júnior, José Cazuza de; Boreskie, Kevin F.; Duhamel, Todd A.; Costa, Eduardo Caldas
Background: This study analyzed the effect of walking breaks or low-volume high-intensity interval exercise (LV-HIIE) on markers of metabolic syndrome relative to a day of prolonged sitting. Methods: Twenty-five adults with excess body fat participated in this crossover trial: (1) 10-hour sitting day (SIT), (2) LV-HIIE followed by a sitting day (EX+SIT), and (3) sitting day with 5-minute walking breaks for every 20 minutes (SIT+WB). Glucose and blood pressure (BP) were measured before and 1 hour after 4 meals and 2 hours after lunch. Triglycerides were measured at baseline, 2, and 3.5 hours after lunch. Generalized mixed models were used to identify differences in the area under the curve (AUC) of BP and incremental AUC (iAUC) of glucose and triglycerides among the sessions. Results: iAUC-glucose was lower in SIT+WB than SIT (β = −35.3 mg/dL·10 h; 95% confidence interval, −52.5 to −8.2). AUC-diastolic BP was lower in SIT+WB than SIT (β = −14.1 mm Hg·10 h; 95% confidence interval, −26.5 to −1.6) and EX+SIT (β = −14.5 mm Hg·10 h; 95% confidence interval, −26.9 to −2.1). There were no differences in triglycerides and systolic BP levels among the sessions. Conclusion: Adults with excess body fat present lower glucose and diastolic BP during a day with breaks in sitting time compared with a prolonged sitting day with or without an LV-HIIE session

SIGAA

Navegando por Autor "Freire, Yuri Alberto"