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Conhecimento dos Enfermeiros Especialistas em Enfermagem de Reabilitação sobre a utilização da Escala de Borg e da Frequência Cardíaca na monitorização e progressão da intensidade do exercício físico: estudo transversal
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A prescrição, monitorização e progressão da intensidade do exercício físico (EF) constituem componentes fundamentais da intervenção dos Enfermeiros Especialistas em Enfermagem de Reabilitação (EEER). A Escala de Borg e a frequência cardíaca (FC) são instrumentos recomendados para monitorizar a intensidade do EF, porém a sua utilização adequada depende do conhecimento dos profissionais.
Objetivo: Avaliar o conhecimento dos EEER sobre a utilização da Escala de Borg e da FC como parâmetros de monitorização e progressão da intensidade do EF, identificando o nível de conhecimento relativamente à Escala de Borg, à FC e aos limites de segurança associados à sua utilização, bem como analisar a associação entre o conhecimento demonstrado e as características académicas e profissionais dos participantes e comparar o conhecimento percebido com o conhecimento demonstrado.
Métodos: Estudo quantitativo, observacional, descritivo-correlacional e transversal. Participaram 55 EEER, selecionados por amostragem não probabilística por conveniência. A recolha de dados decorreu entre fevereiro e março de 2026, através de um questionário de autopreenchimento que incluiu caracterização sociodemográfica e profissional, avaliação do conhecimento percebido e do conhecimento demonstrado. Os dados foram analisados no IBM® SPSS® Statistics (versão 28), recorrendo a estatística descritiva e inferencial, utilizando os testes de Spearman, Mann-Whitney e Kruskal-Wallis, com nível de significância de 5%.
Resultados: Os participantes apresentaram um nível globalmente satisfatório de conhecimento sobre a utilização da Escala de Borg e da FC na monitorização da intensidade do EF. Identificaram-se, contudo, algumas lacunas em conteúdos relacionados com o cálculo da FC de reserva e a definição de zonas de intensidade do exercício. Observou-se uma correlação positiva moderada entre o conhecimento percebido e o conhecimento demonstrado, bem como correlações positivas entre o conhecimento demonstrado e a frequência de utilização da Escala de Borg e da FC. O grau académico apresentou associação estatisticamente significativa com o conhecimento demonstrado, não se verificando associações significativas com a idade, experiência profissional ou formação específica.
Conclusão: Os EEER demonstraram um nível satisfatório de conhecimento relativamente à utilização da Escala de Borg e da FC, embora persistam lacunas em áreas específicas. Os resultados reforçam a importância da utilização sistemática destes instrumentos e da atualização científica dos profissionais, contribuindo para uma monitorização da intensidade do EF mais segura, individualizada e baseada na evidência.
The prescription, monitoring, and progression of exercise intensity are fundamental components of the practice of Rehabilitation Nursing Specialists. The Borg Rating of Perceived Exertion (RPE) Scale and heart rate (HR) are recommended tools for monitoring exercise intensity; however, their appropriate use depends on healthcare professionals' knowledge and clinical competence. Objective: To evaluate Rehabilitation Nursing Specialists' knowledge regarding the use of the Borg Rating of Perceived Exertion (RPE) Scale and heart rate as parameters for monitoring and progressing exercise intensity, by identifying their level of knowledge related to the Borg Scale, heart rate, and the safety limits associated with their use, as well as examining the association between demonstrated knowledge and participants'academic and professional characteristics and comparing perceived knowledge with demonstrated knowledge. Methods: A quantitative, observational, descriptive-correlational, cross-sectional study was conducted. The sample comprised 55 Rehabilitation Nursing Specialists selected through non-probability convenience sampling. Data were collected between February and March 2026 using a self-administered questionnaire that included sociodemographic and professional characteristics, perceived knowledge, and demonstrated knowledge. Data were analyzed using IBM® SPSS® Statistics (Version 28). Descriptive and inferential statistical analyses were performed using Spearman's rank correlation coefficient, the Mann-Whitney U test, and the Kruskal-Wallis test, with the level of statistical significance set at 5%. Results: Participants demonstrated an overall satisfactory level of knowledge regarding the use of the Borg RPE Scale and heart rate for monitoring exercise intensity. However, knowledge gaps were identified in topics related to heart rate reserve calculation and the definition of target exercise intensity zones. A moderate positive correlation was found between perceived and demonstrated knowledge, as well as positive correlations between demonstrated knowledge and the frequency of using both the Borg RPE Scale and heart rate in clinical practice. Academic degree was significantly associated with demonstrated knowledge, whereas no significant associations were observed with age, professional experience, or specialized training. Conclusion: Rehabilitation Nursing Specialists demonstrated an satisfactory level of knowledge regarding the use of the Borg RPE Scale and heart rate for monitoring and progressing exercise intensity, although gaps remain in specific areas. These findings highlight the importance of the systematic use of these tools and the need for continuous professional development to promote safer, individualized, and evidence-based exercise intensity monitoring.
The prescription, monitoring, and progression of exercise intensity are fundamental components of the practice of Rehabilitation Nursing Specialists. The Borg Rating of Perceived Exertion (RPE) Scale and heart rate (HR) are recommended tools for monitoring exercise intensity; however, their appropriate use depends on healthcare professionals' knowledge and clinical competence. Objective: To evaluate Rehabilitation Nursing Specialists' knowledge regarding the use of the Borg Rating of Perceived Exertion (RPE) Scale and heart rate as parameters for monitoring and progressing exercise intensity, by identifying their level of knowledge related to the Borg Scale, heart rate, and the safety limits associated with their use, as well as examining the association between demonstrated knowledge and participants'academic and professional characteristics and comparing perceived knowledge with demonstrated knowledge. Methods: A quantitative, observational, descriptive-correlational, cross-sectional study was conducted. The sample comprised 55 Rehabilitation Nursing Specialists selected through non-probability convenience sampling. Data were collected between February and March 2026 using a self-administered questionnaire that included sociodemographic and professional characteristics, perceived knowledge, and demonstrated knowledge. Data were analyzed using IBM® SPSS® Statistics (Version 28). Descriptive and inferential statistical analyses were performed using Spearman's rank correlation coefficient, the Mann-Whitney U test, and the Kruskal-Wallis test, with the level of statistical significance set at 5%. Results: Participants demonstrated an overall satisfactory level of knowledge regarding the use of the Borg RPE Scale and heart rate for monitoring exercise intensity. However, knowledge gaps were identified in topics related to heart rate reserve calculation and the definition of target exercise intensity zones. A moderate positive correlation was found between perceived and demonstrated knowledge, as well as positive correlations between demonstrated knowledge and the frequency of using both the Borg RPE Scale and heart rate in clinical practice. Academic degree was significantly associated with demonstrated knowledge, whereas no significant associations were observed with age, professional experience, or specialized training. Conclusion: Rehabilitation Nursing Specialists demonstrated an satisfactory level of knowledge regarding the use of the Borg RPE Scale and heart rate for monitoring and progressing exercise intensity, although gaps remain in specific areas. These findings highlight the importance of the systematic use of these tools and the need for continuous professional development to promote safer, individualized, and evidence-based exercise intensity monitoring.
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Enfermagem em reabilitação Exercício físico Frequência cardíaca Escala de Borg Conhecimento Reabilitação