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- Heart rate variability activity in soccer athletes after a musculoskeletal injuryPublication . Flores, Gonçalo; Monteiro, Diogo; Silva, Fernanda; Duarte-Mendes, PedroObjectives: The aim of this study is to analyse the adaptations of the autonomic nervous system after a musculoskeletal injury, obtained by measuring heart rate variability in athletes. It was hypothesized that there is an alteration in heart rate variability after a musculoskeletal injury. Study design: Cohort study. Subjects: 15 semi-professional soccer players from three football teams, aged between 21 and 33 (mean age: 29.4 ± 3.31 years), with a recent musculoskeletal injury. Methods: Heart rate variability was collected using the Polar m200 and the chest strap H10 in two moments: within 72 h after the injury and between 5 and 7 days after full return-to-play. Results: Results show differences between T1 and T2 (p ≤ 0.05) in low-frequency power (n.u.) (p = 0.001) and high-frequency power (n.u.) (p = 0.001), in low-frequency/high-frequency ratio (p = 0.001) and in high-frequency power (ms2) (p = 0.017) measures. No statistical differences were found in low-frequency power (ms2) (p = 0.233). The low frequency power (n.u.) was significantly lower after injury compared with LF power (n.u.) values after full return-to-play. In high-frequency power there was a significant difference between both moments with high values after injury. Conclusions: The use of heart rate variability therefore seems to be promising to detect an imbalance in the autonomic nervous system and help clinical departments to identify a possible non-traumatic musculoskeletal injury. Further research should be performed considering a wide range of musculoskeletal injuries and to establish baseline values of the athletes.
- Investigação em Enfermagem (caderno de exercícios)Publication . Frade, JoãoEste manual é elaborado no âmbito da unidade de investigação em enfermagem para as turmas do curso de mestrado de enfermagem comunitária área de enfermagem de saúde familiar e para as turmas do curso de mestrado de enfermagem comunitária área de enfermagem de saúde comunitária e saúde pública da Escola superior de Saúde do Insti-tuto Politécnico de Leiria no sentido de apoiar o estudo dos estudantes nos conteúdos lecionados em aulas teóricas e teórico-práticas. O seu principal objetivo é sistematizar conhecimentos e facilitar a elaboração do protocolo do projeto de investigação que será fundamental para a consecução do relatório/dissertação/projeto final de curso. O caderno é composto por exercícios práticos a que o estudante deverá saber res-ponder no final dos conteúdos lecionados no sentido de dar cumprimento aos objetivos da Unidade Curricular.
- Muscle Strength Matters Most for Risk of Falling Apart from Body Mass Index in Older Adults: A Mediated-Moderation AnalysisPublication . Rodrigues, Filipe; Izquierdo, Mikel; Monteiro, Diogo; Jacinto, Miguel; Matos, Rui; Amaro, Nuno; Antunes, Raul; Teixeira, Diogo SantosThe primary objective of this study was to analyze the moderating effect of body mass index (BMI) on the association between lower body strength, agility, and dynamic balance, considering the mediating influence of lower body flexibility and aerobic endurance in community-dwelling older adults. This study included a sample of 607 community-dwelling older adults (female = 443; male = 164) aged between 60 and 79 years (M = 69.24; SD = 5.12). Participants had a mean body mass index of 28.33kg/m2 (SD = 4.45). In the mediation-moderation model, positive associations were found between lower body strength and lower body flexibility, aerobic endurance, and agility and dynamic balance (p < 0.05). As for the moderation effects and interactions, BMI was found to have a significant interaction with lower body strength on agility and dynamic balance (β = −.04, [−.06, −.03]), representing an R2-change of 0.04 (p <.001). Conditional direct effects were estimated at BMI scores of 23.9 (β = −.09, [−.15, −.03]), 27.7 (β = −.19, [−.24, −.14]), and 32.7 (β = −.33, [−.40, −.26]) kg/m2. Older adults with high levels of muscular strength tended to have shorter timed up-and-go test times, regardless of BMI. Also, individuals with lower levels of lower body strength were found to have longer timed up-and-go test times, and this relationship became more pronounced with increasing BMI.