Effects of Nordic walking on Parkinson’s disease: a systematic review of randomized clinical trials / Efeitos da caminhada nórdica na doença de Parkinson: uma revisão sistemática de ensaios clínicos randomizados / Los beneficios de la caminata nórdica en la enfermedad de Parkinson: estudio clínico sistemático aleatorio

ABSTRACT Several exercise modalities improve the symptoms of Parkinson’s Disease (PD). Among the variety of physical exercises, Nordic walking has been used. The aim of this study was to summarize scientific literature on effects of Nordic walking on patients with PD by a systematic review of randomized clinical trials. The following electronic databases were selected: MEDLINE by Pubmed, Cochrane, PEDro, SCOPUS and Web of Science and articles identified by manual search, without restriction of date and language. The reviewers evaluated the articles and selected studies according to the eligibility criteria. The following data were extracted from the selected studies: publication identification, participants’ characteristics (sex, age, disease stage, duration of disease), experimental intervention characteristics, control group characteristics, duration, follow-up time, outcome measures and main results. Nordic walking programs with moderate and high intensities, with a minimum of 12 sessions of 60 minutes in a period from 6 to 24 weeks promoted positive effects on the severity, gait, balance, quality of life, functional capacity and motor function in patients with PD.

RESUMO Várias modalidades de exercício melhoram os sintomas da Doença de Parkinson. Dentre a variedade de exercícios físicos, a caminhada nórdica tem sido utilizada. O objetivo do estudo foi sintetizar a produção científica sobre os efeitos da caminhada nórdica na doença de Parkinson por meio de uma revisão sistemática de ensaios clínicos randomizados. Foram selecionadas as seguintes bases de dados eletrônicas: MEDLINE via Pubmed, Cochrane, PEDro, SCOPUS e Web of Science, e artigos identificados por meio de busca manual, sem restrição de data e idioma. Os revisores avaliaram os artigos completos e os estudos selecionados de acordo com os critérios de elegibilidade. Os dados extraídos foram: identificação da publicação, características dos participantes (sexo, idade, estágio da doença, duração da doença), características da intervenção experimental, características do grupo controle, duração, seguimento, desfechos avaliados e principais resultados. Um programa de caminhada nórdica, realizado com intensidades moderada e alta, com mínimo de 12 sessões de 60 minutos em um período de 6 a 24 semanas promove efeitos positivos na gravidade da doença, marcha, equilíbrio, qualidade de vida, aptidão funcional e função motora em pacientes com doença de Parkinson.

RESUMEN Hay varias modalidades de ejercicios físicos que mejoran los síntomas de la enfermedad de Parkinson. Entre las modalidades, se destaca la caminata nórdica. El propósito de este estudio es sintetizar la producción científica sobre los beneficios de la caminata nórdica en la enfermedad de Parkinson a través de una revisión sistemática de los estudios clínicos aleatorios. Se eligieron las bases de datos electrónicas MEDLINE por PubMed, Cochrane, PEDro, SCOPUS y Web of Science, de las cuales se identificaron textos a través de búsqueda manual, sin restricción de fecha e idioma. Los revisores evaluaron los textos completos y los elegidos según criterios. Se obtuvieron los datos: identificación de la publicación, características de los participantes (sexo, edad, etapa de la enfermedad, duración de la enfermedad), características de la intervención experimental, características del grupo control, duración, seguimiento, resultados evaluados y principales resultados. Un programa de caminata nórdica, realizado con intensidades moderada y alta, con el mínimo de 12 sesiones de 60 minutos en el periodo de 6 a 24 semanas les proporciona resultados positivos en la gravedad de la enfermedad, la marcha, el equilibrio, la calidad de vida, la aptitud funcional y la función motora de pacientes con esta enfermedad.

[Estimators of internal consistency in health research: the use of the alpha coefficient]. / Estimadores de consistencia interna en las investigaciones en salud: el uso del coeficiente alfa.

Academic production has increased in the area of health, increasingly demanding high quality in publications of great impact. One of the ways to consider quality is through methods that increase the consistency of data analysis, such as reliability which, depending on the type of data, can be evaluated by different coefficients, especially the alpha coefficient. Based on this, the present review systematically gathers scientific articles produced in the last five years, which in a methodological manner gave the α coefficient psychometric use as an estimator of internal consistency and reliability in the processes of construction, adaptation and validation of instruments. The identification of the studies was conducted systematically in the databases BioMed Central Journals, Web of Science, Wiley Online Library, Medline, SciELO, Scopus, Journals@Ovid, BMJ and Springer, using inclusion and exclusion criteria. Data analyses were performed by means of triangulation, content analysis and descriptive analysis. It was found that most studies were conducted in Iran (f=3), Spain (f=2) and Brazil (f=2). These studies aimed to test the psychometric properties of instruments, with eight studies using the α coefficient to assess reliability and nine for assessing internal consistency. All studies were classified as methodological research when their objectives were analyzed. In addition, four studies were also classified as correlational and one as descriptive-correlational. It can be concluded that though the α coefficient is widely used as one of the main parameters for assessing internal consistency of questionnaires in health sciences, its use as an estimator of trust of the methodology used and internal consistency has some critiques that should be considered.

Estimadores de consistencia interna en las investigaciones en salud: el uso del coeficiente alfa / Estimators of internal consistency in health research: the use of the alpha coefficient

La producción académica ha aumentado en el área de la salud, exigiendo cada vez más calidad en las publicaciones de gran impacto. Una de las formas de considerar la calidad es por medio de procedimientos que aumentan la consistencia del análisis de los datos, como la confiabilidad, que dependiendo del tipo de datos, puede ser evaluada por diferentes coeficientes, en especial el coeficiente alfa. Basados en lo anterior, la presente revisión reúne sistemáticamente artículos científicos producidos en los últimos cinco años, que de manera metodológica hicieron uso psicométrico del coeficiente α como un estimador de consistencia interna y de confiabilidad en procesos de construcción, adaptación y validación de instrumentos. La identificación de los estudios fue realizada sistemáticamente en las bases de datos Biomed Central Journals, Google Scholar, Web of Science, Wiley Online Library, Medline via Pubmed, Scielo, Scopus, Journals@Ovid, BMJ y Springer por medio del Portal de Periódicos CAPES, utilizando criterios de inclusión y exclusión. El análisis de los datos fue realizado por medio de triangulación, análisis de contenido y análisis descriptivo. Se obtuvo que la mayoría de los estudios fueron realizados principalmente en Irán (f=3), España (f=2) y Brasil (f=2), estos estudios tuvieron como objetivo testar las propiedades psicométricas de instrumentos, siendo que ocho estudios utilizaron el coeficiente α para evaluar la confiabilidad y nueve para evaluar la consistencia interna. Todos los estudios fueron clasificados como investigaciones metodológicas al analizar sus objetivos. Adicionalmente, cuatro estudios también fueron clasificados como correlacionales y uno como descriptivo-correlacional. Se puede concluir que a pesar de que el coeficiente α es ampliamente utilizado como uno de los principales parámetros para la evaluación de consistencia interna de instrumentos de medición del tipo cuestionario en el área de ciencias de la salud.

Academic production has increased in the area of health, increasingly demanding high quality in publications of great impact. One of the ways to consider quality is through methods that increase the consistency of data analysis, such as reliability which, depending on the type of data, can be evaluated by different coefficients, especially the alpha coefficient. Based on this, the present review systematically gathers scientific articles produced in the last five years, which in a methodological manner gave the α coefficient psychometric use as an estimator of internal consistency and reliability in the processes of construction, adaptation and validation of instruments. The identification of the studies was conducted systematically in the databases BioMed Central Journals, Web of Science, Wiley Online Library, Medline, SciELO, Scopus, Journals@Ovid, BMJ and Springer, using inclusion and exclusion criteria. Data analyses were performed by means of triangulation, content analysis and descriptive analysis. It was found that most studies were conducted in Iran (f=3), Spain (f=2) and Brazil (f=2). These studies aimed to test the psychometric properties of instruments, with eight studies using the α coefficient to assess reliability and nine for assessing internal consistency. All studies were classified as methodological research when their objectives were analyzed. In addition, four studies were also classified as correlational and one as descriptive-correlational. It can be concluded that though the α coefficient is widely used as one of the main parameters for assessing internal consistency of questionnaires in health sciences, its use as an estimator of trust of the methodology used and internal consistency has some critiques that should be considered.

Anthropometric indicators of obesity in policemen: a systematic review of observational studies.

The aim of this paper was to summarize scientific literature on obesity in policemen through a systematic review of observational studies. For this purpose the following electronic databases were selected: Medline by Pubmed, CINAHL, and Scopus; and a manual search of the referenced studies concerning this topic was performed. There were no restrictions with respect to the year or language of the publication. Twenty-three studies were identified and 9 articles, considered as potentially relevant, were included. The labor time, shift and career progression promoted changes in body composition. Most of the policemen taking part in the studies included in this paper were overweight (BMI: 25.2-29.3), obese (body fat ≥ 25%), had increased waist (90.4-102 cm) and abdominal perimeters (18.9-90.5 cm), and had a higher risk of chronic disease, which is associated with depression and stress development. Interventional studies are needed for the purpose of proposing preventive and rehabilitation programs, which would result in providing physical and mental well-being, improvement of life quality and, especially, prevention of obesity related to police work.

Effects of Square-Stepping Exercise on balance and depressive symptoms in older adults / Efeitos do Square-Stepping Exercise (SSE) no equilíbrio e sintomas depressivos de idosos / Efectos del Square-Stepping Exercise (SSE) en equilibrio y síntomas depresivos en adultos mayores

The aim of this study was analyze the effects of Square-Stepping Exercise (SSE) on depressive symptoms, balance and functional mobility in older adults. Participants were distributed into two groups: Trained Group (TG), who performed a 16-week intervention with SSE and Control Group (CG), who performed only evaluations. The Berg Balance Scale and Time Up and Go Test (TUG) constituted the evaluation protocol to verify balance and functional mobility. Geriatric Depression Scale-short form (GDS-15) was applied for measure depressive symptoms. Evaluations were realized pre and post 16-week. Significant improvements were observed in the TG with the maintenance of GDS-15 scores and on the time to perform the TUG test which reflects better functional mobility than the CG. This could lead to conclude that the SSE is an important tool for improve balance, prevent falls and decrease depression symptoms...

"Efeitos do Square-Stepping Exercise (SSE) no equilíbrio e sintomas depressivos de idosos." O objetivo desse estudo foi analisar os efeitos do Square-Stepping Exercise (SSE) nos sintomas depressivos, equilíbrio e mobilidade funcional de idosos. Os participantes foram distribuídos em dois grupos: Grupo Treinamento (TG), que realizou 16 semanas de intervenção com o SSE e Grupo Controle (CG), que penas respondeu as avaliações. A Escala de Equilíbrio de Berg e o Time Up and Go Test (TUG) constituíram o protocolo de avaliação, e verificaram o equilíbrio e a mobilidade funcional. A Escala Geriátrica de Depressão curta (GDS-15) foi aplicada para mensurar os sintomas depressivos. Avaliações Foram realizadas pré e após 16 semanas. Resultados significativos foram observados no TG, como a manutenção do escore da GDS-15 e melhora do tempo para realizar o TUG, o que reflete em uma mobilidade funcional melhor que no CG. Podemos concluir que o SSE é uma importante ferramenta para promover equilíbrio, prevenir que das e diminuir os sintomas depressivos...

"Efectos del Square-Stepping Exercise (SSE) en equilibrio y síntomas depresivos en adultos mayores." El objetivo de este estudio fue analizar los efectos del SSE (Square-Stepping Exercise) en los síntomas depresivos, equilibrio y movilidad funcional de ancianos. Los participantes fueron divididos en dos grupos: Grupo de Entrenamiento (TG), que celebró 16 semanas de intervención con SSE y Grupo Control (GC), que respondió evaluaciones plumas. El rango de equilibrio de Berg Balance de el Time Up nd Go Test (TUG) constituyeron el protocolo de evaluación, y se encontró el equilibrio y la movilidad funcional. La Escala de Depresión Geriátrica breve (GDS-15) se utilizó para medir los síntomas depresivos. Las evaluaciones se realizaron antes y después de 16 semanas. Los resultados significativos se observaron en TG, como el mantenimiento de la puntuación GDS-15 y la mejora de tiempo para realizar el TUG, que se refleja en una mejor movilidad funcional en CG. Podemos concluir que la ESS es una herramienta importante para promover el equilibrio, la prevención y disminución de los síntomas depresivos...

Health-related quality of life and related factors of military police officers.

PURPOSE: The present study aimed to determine the effect of demographic characteristics, occupation, anthropometric indices, and leisure-time physical activity levels on coronary risk and health-related quality of life among military police officers from the State of Santa Catarina, Brazil. METHODS: The sample included 165 military police officers who fulfilled the study's inclusion criteria. The International Physical Activity Questionnaire and the Short Form Health Survey were used, in addition to a spreadsheet of socio-demographic, occupational and anthropometric data. Statistical analyses were performed using descriptive analysis followed by Spearman Correlation and multiple linear regression analysis using the backward method. RESULTS: The waist-to-height ratio was identified as a risk factor low health-related quality of life. In addition, the conicity index, fat percentage, years of service in the military police, minutes of work per day and leisure-time physical activity levels were identified as risk factors for coronary disease among police officers. CONCLUSIONS: These findings suggest that the Military Police Department should adopt an institutional policy that allows police officers to practice regular physical activity in order to maintain and improve their physical fitness, health, job performance, and quality of life.

Validation of the Brazilian version of the apathy inventory.

BACKGROUND: Apathy is a frequent neuropsychiatric condition in neurodegenerative disorders, depression, and often in mild cognitive impairment. The Apathy Inventory (AI) is a reliable instrument for improving the accuracy of the apathy diagnosis. The aim was to establish the validity of the Apathy Inventory for the Brazilian community. METHODS: We established the concurrent validity, internal consistency, inter-rater reliability, and the sensitivity and specificity of AI for the Brazilian community in a cohort of 175 individuals with Alzheimer's disease, Parkinson's disease, depression, mild cognitive impairment, and healthy controls. The three dimensions of the AI (emotional blunting, lack of initiative, and lack of interest) were compared with the Apathy domain of the Neuropsychiatric Inventory-Clinician rating scale (NPI-C) in an independent scheme. RESULTS: The analyses demonstrated high correlation coefficients in AI's individual dimensions and in AI-total score (F = 0.965). Concerning the NPI-C/Apathy domain, intra-class correlation coefficients were also high (F = 0.977). Concurrent validity was high according to both raters on AI dimensions × NPI-C/Apathy domain and regarding total score (rater 1: rho = 0.956 vs. rater 2: rho = 0.970). The internal consistency of the AI was also high concerning the AI's individual dimensions and total score (rater 1: 0.945 vs. rater 2: 0.958). CONCLUSION: We observed high internal consistency, high concurrent validity, and inter-rater reliability of the Apathy Inventory. In addition, we found that its sensitivity and specificity were high. We suggest that the Brazilian version of the Apathy Inventory would be an appropriate instrument to identify the apathy syndrome in Brazilian patients.

Effects of square-stepping exercise on cognitive functions of older people.

AIM: Cognitive functions can decline with age, and interventions focusing on stimulating them may have positive results. Previous studies have shown that square-stepping exercise (SSE) has a good influence on balance, but this exercise also seems to promote cognitive stimulation. Therefore, the purpose of the present study was to analyse the effect of 16 weeks of SSE on cognitive functions in non-demented community-dwelling older people. METHODS: This was a longitudinal, non-randomized study. Forty-one older adults (60 years and older) were recruited, and 21 participated in the SSE group (practised only SSE sequences) and 20 were in the control group (continued with their activities of daily living). Both groups were evaluated using the Mini-Mental State Examination, the Digit Span test, the Toulouse-Pierón Attention Test and the Modified Card Sorting Test. RESULTS: The SSE group showed a significant improvement in global cognitive status, concentrated attention and mental flexibility after 16 weeks of the SSE intervention. CONCLUSION: Evidence shows that SSE is a physical activity that positively influences cognitive functions in non-demented older people.

Atividade física e sintomas neuropsiquiátricos em pacientes com demência de Alzheimer / Physical activity and neuropsychiatric symptoms in elderly with Alzheimer’s dementia

Na demência de Alzheimer (DA) é comum a presença de sintomas neuropsiquiátricos resultantes de mudanças anatômicas e bioquímicas no cérebro. O objetivo deste estudo foi realizar uma revisão sistemática dos estudos que investigaram a relação entre atividade física e sintomas neuropsiquiátricos na DA. Efetuou-se uma pesquisa nas bases de dados: Academic Search Premier, Biological Abstracts, Medline, PsycINFO, Pubmed, Scielo, Science Direct, Sport Discus e Web of Science, utilizando-se as seguintes palavras – chave e operadores boleanos: (Neuropsychiatric disturbances OR Neuropsychiatric symptoms OR Neuropsychological disturbances OR Aberrant behavior OR Aberrant behaviour OR Behavior disturbances OR Behaviour disturbances OR Behavior management OR Behaviour management OR Disruptive behavior OR Disruptive behaviour) AND (Alzheimer) AND (Exercise OR Motor intervention OR training OR Physical activity OR fitness), além de referências cruzadas dos artigos selecionados. Foram encontrados oito estudos que preencheram os critérios de inclusão. Concluiu-se que bons resultados têm sido evidenciados para os distúrbios de agitação e sono de pacientes com DA. Entretanto então há um consenso de qual o melhor tipo de atividade para estes pacientes.

Is common the presence of neuropsychiatric symptoms in Alzheimer´s disease (AD), this is resulted of anatomical and biochemical changes in the brain. The objective of present study was to look for papers relating physical activity and neuropsychiatric symptoms through a systematic review. The following data bases was accessed: Academic Search Premier, Biological Abstracts, Medline, PsycINFO, Pubmed, Scielo, Science direct on line, Sport Discus and Web of Science, using the following key-words: (Neuropsychiatric disturbances OR Neuropsychiatric symptoms OR Neuropsychological disturbances OR Aberrant behavior OR Aberrant behaviour OR Behavior disturbances OR Behaviour disturbances OR Behavior management OR Behaviour management OR Disruptive behavior OR Disruptive behaviour) AND (Alzheimer) AND (Exercise OR Motor intervention OR training OR Physical activity OR fitness), besides crossing the references in the selected articles. Eight studies had filled the inclusion criteria. It was possible to conclude there are evidences of positive results for agitation and sleep disturbances in patients with AD. However, there’s no consensus of what kind of activity is better for these patients.

Apathy in Alzheimer's disease - Contribution to a clinical view on progression of dementia / Apatia na doença de Alzheimer - contribuição para uma visão clínica da progressão da demência

In addition to cognitive impairment, apathy is increasingly recognized as an important neuropsychiatric syndrome in Alzheimers disease (AD). Aims: To identify the relationship between dementia severity and apathy levels, and to discuss the association of this condition with other psychopathological manifestations in AD patients. Methods: This study involved 15 AD patients (mean age: 77 years; schooling: 4.9 years), with mild, moderate and severe dementia, living in Rio Claro SP, Brazil. Procedures included evaluation of cognitive status by the Mini-Mental State Examination, Clinical Dementia Rating, and Global Deterioration Scale. Apathy syndrome was assessed by the Apathy Evaluation Scale and Neuropsychiatric Inventory (NPI-apathy domain). Other psychopathological manifestations such as depression were also considered. Results: Patients with more severe dementia presented higher levels of apathy, reinforcing the hypothesis that apathy severity aggravates as the disease progresses. Using the Spearman coefficient correlation an association was identified between the MMSE and Apathy Evaluation Scale (r=0.63; p=0.01), and also between the MMSE and NPI-apathy domain (r=0.81; p=0.01). Associations were also found between the Global Deterioration Scale and Apathy Evaluation Scale (r=0.58; p=0.02), and between the Global Deterioration Scale and NPI-apathy domain (r=0.81; p=0.01). Conclusions: Apathy is a distinct syndrome among patients with AD and increases with global deterioration.

A apatia tem sido reconhecida como uma importante síndrome na doença de Alzheimer (DA), além do comprometimento cognitivo. Objetivo: Avaliar a relação entre gravidade da demência e níveis de apatia e discutir a associação de apatia com outras manifestações psicopatológicas em pacientes com DA. Sujeitos: 15 pacientes com DA com demência leve, moderada e avançada, residentes em Rio Claro SP, Brasil. Métodos: Avaliação do status cognitivo por meio do Mini-Exame do Estado Mental, Escore Clínico de Demência e Escala de Deterioração Global. A avaliação da apatia incluiu a Escala de Avaliação de Apatia e o Inventário Neuropsiquiátrico (NPI-domínio apatia). Depressão também foi aferida. Resultados: Os pacientes com demência avançada apresentaram níveis mais elevados de apatia, o que reforça a hipótese de que ela se agrava na medida em que a doença progride. Por meio do coeficiente de correlação de Spearman, verificou-se associação do Mini-Exame do Estado Mental com a Escala de Avaliação de Apatia (r=0,63; p=0,01) e com o NPI-domínio apatia (r=0,81; p=0,01); também se constatou associação da Escala de Deterioração Global com a Escala de Avaliação de Apatia (r=0,58; p=0,02) e com o NPI-domínio apatia (r=0,81; p=0,01). Conclusões: A apatia é uma síndrome distinta em pacientes com DA e que se agrava com a deterioração global imposta pela doença.

Apathy in Alzheimer's disease: Contribution to a clinical view on progression of dementia.

In addition to cognitive impairment, apathy is increasingly recognized as an important neuropsychiatric syndrome in Alzheimer's disease (AD). AIMS: To identify the relationship between dementia severity and apathy levels, and to discuss the association of this condition with other psychopathological manifestations in AD patients. METHODS: This study involved 15 AD patients (mean age: 77 years; schooling: 4.9 years), with mild, moderate and severe dementia, living in Rio Claro SP, Brazil. Procedures included evaluation of cognitive status by the Mini-Mental State Examination, Clinical Dementia Rating, and Global Deterioration Scale. Apathy syndrome was assessed by the Apathy Evaluation Scale and Neuropsychiatric Inventory (NPI-apathy domain). Other psychopathological manifestations such as depression were also considered. RESULTS: Patients with more severe dementia presented higher levels of apathy, reinforcing the hypothesis that apathy severity aggravates as the disease progresses. Using the Spearman coefficient correlation an association was identified between the MMSE and Apathy Evaluation Scale (r=0.63; p=0.01), and also between the MMSE and NPI-apathy domain (r=0.81; p=0.01). Associations were also found between the Global Deterioration Scale and Apathy Evaluation Scale (r=0.58; p=0.02), and between the Global Deterioration Scale and NPI-apathy domain (r=0.81; p=0.01). CONCLUSIONS: Apathy is a distinct syndrome among patients with AD and increases with global deterioration.

A apatia tem sido reconhecida como uma importante síndrome na doença de Alzheimer (DA), além do comprometimento cognitivo. OBJETIVO: Avaliar a relação entre gravidade da demência e níveis de apatia e discutir a associação de apatia com outras manifestações psicopatológicas em pacientes com DA. SUJEITOS: 15 pacientes com DA com demência leve, moderada e avançada, residentes em Rio Claro SP, Brasil. MÉTODOS: Avaliação do status cognitivo por meio do Mini-Exame do Estado Mental, Escore Clínico de Demência e Escala de Deterioração Global. A avaliação da apatia incluiu a Escala de Avaliação de Apatia e o Inventário Neuropsiquiátrico (NPI-domínio apatia). Depressão também foi aferida. RESULTADOS: Os pacientes com demência avançada apresentaram níveis mais elevados de apatia, o que reforça a hipótese de que ela se agrava na medida em que a doença progride. Por meio do coeficiente de correlação de Spearman, verificou-se associação do Mini-Exame do Estado Mental com a Escala de Avaliação de Apatia (r=0,63; p=0,01) e com o NPI-domínio apatia (r=0,81; p=0,01); também se constatou associação da Escala de Deterioração Global com a Escala de Avaliação de Apatia (r=0,58; p=0,02) e com o NPI-domínio apatia (r=0,81; p=0,01). CONCLUSÕES: A apatia é uma síndrome distinta em pacientes com DA e que se agrava com a deterioração global imposta pela doença.

Atividade física sistematizada e sintomas de depressão na demência de alzheimer: uma revisão sistemática / Systematized physical activity and depressive symptoms in alzheimer's dementia: a systematic review

OBJETIVO: Realizar uma revisão sistemática de artigos científicos que analisaram os efeitos da atividade física sistematizada nos sintomas de depressão de pacientes com demência de Alzheimer. MÉTODOS: Foi realizada uma busca nas seguintes bases de dados: Web of Science, PubMed, PsycINFO, MedLine e Biological Abstracts, utilizando-se as seguintes palavras-chave: "Alzheimer dementia" , "Alzheimer disease" , "Alzheimer, physical activity", "physical exercise", "motor intervention" , "physical therapy" , "exercise" , "aerobic" , "strength" , "fitness" , "depression" , "dysphoria" , "depressive symptoms" e "depressive episodes". Além da busca nas bases de dados, foi realizada também uma busca manual nas listas de referências dos artigos selecionados. RESULTADOS: Foram encontrados quatro estudos que preencheram todos os critérios de inclusão adotados para o presente trabalho. Dois estudos apresentaram reduções dos sintomas depressivos, e outros dois não encontraram redução desses sintomas. CONCLUSÃO: Com a realização desta revisão sistemática, observou-se que não há consenso em relação aos benefícios da atividade física aos sintomas depressivos em pacientes com demência de Alzheimer.

OBJECTIVE: To develop a systematic review of scientific articles that have been analyzed the effects of systematic physical activity in depression of patients with Alzheimer's disease. METHODS: We performed a search in the following databases: Web of Science, PubMed, PsycINFO, MedLine and Biological Abstracts, we used the following keywords: "Alzheimer dementia", "Alzheimer disease", "Alzheimer's, physical activity", "physical exercise", "motor intervention", "physical therapy", "exercise", "aerobic", "strength", "fitness", "depression", "dysphoria", "depressive symptoms" and "depressive episodes", and also a manual search in references of the selected articles. RESULTS: Have been found four studies that met all criteria of this study. Two studies presented reductions in depressive symptoms, and two others no reduction of these symptoms. CONCLUSION: In conducting this systematic review, it was observed that there is not consensus regarding the benefits of physical activity on depressive symptoms in patients with Alzheimer dementia.