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OBJECTIVE: To analyze whether the algorithm used for the heart rate variability assessment (fast Fourier transform versus autoregressive methods) influenced its association with cardiovascular risk factors in male adolescents.\ud \ud METHODS: This cross-sectional study included 1,152 male adolescents (aged 14 to 19 years). The low frequency, high frequency components (absolute numbers and normalized units), low frequency/high frequency ratio, and total power of heart rate variability parameters were obtained using the fast Fourier transform and autoregressive methods, while the adolescents were resting in a supine position.\ud \ud RESULTS: All heart rate variability parameters calculated from both methods were different (p

Objective To analyze and describe the maneuvers most commonly used in clinical practice by physical therapists and the reasons for choosing them. Methods A prospective multicenter study using a questionnaire. The sample consisted of physical therapists from five hospitals (three private hospitals, a teaching hospital and a public hospital). Results A total of 185 questionnaires were filled in. Most professionals had graduated 6 to 10 years before and over had over 10 years of intensive care unit experience. The most often used maneuvers were vibrocompression, hyperinflation, postural drainage, tracheal suction and motor mobilization. The most frequent reason for choosing these maneuvers was “I notice they are more efficient in clinical practice.” Conclusion Physical therapy is mostly based on individual experience acquired in the clinical practice, and not on the scientific literature. RESUMO Objetivo Analisar e descrever as manobras mais usadas na prática clínica pelos fisioterapeutas e os motivos para esta escolha. Métodos Estudo prospectivo e multicêntrico, realizado por meio de um questionário. A amostra foi composta por colaboradores fisioterapeutas de cinco hospitais, sendo três particulares, um hospital escola e um público. Resultados Foram preenchidos 185 questionários. A maioria dos profissionais possuía de 6 a 10 anos de formação e mais de 10 anos de experiência em unidades de terapia intensiva. As manobras mais assinaladas foram: vibrocompressão, hiperinsuflação, drenagem postural, aspiração traqueal e mobilização motora. O motivo de escolha prevalente destas manobras foi “Eu vejo ser mais eficaz na prática clínica”. Conclusão A fisioterapia baseia-se na prática clínica adquirida ao longo da experiência individual, não sendo fomentada pela literatura científica.