Are there differences in auscultatory pulse in total blood flow restriction between positions, limbs and body segments? / Existem diferenças no pulso auscultatório da restrição total de fluxo sanguíneo entre as posições, membros e segmentos corporais?

Verification of the auscultatory pulse in total blood flow restriction (BFR) has been a limiting factor in studies due to the way in which it is evaluated and prescribed, as hemodynamic measurements can be directly affected by gravity. The aim of the present study was to compare the auscultatory pulse in BFR between positions, genders, limbs and body segments in healthy young individuals. A total of 156 subjects participated in the study, 76 of whom were male and 80 of whom were female (23.9±3.7 years, 66.5±11.5 kg, 1.67±0.07 m). After filling in registration data, anthropometry was evaluated, and BFR pressure was determined. BFR was evaluated in a randomized manner in both limbs (upper and lower) and in both segments (right and left) in the following positions: a) lying in the supine position; B) sitting with knees and trunk at 90°; and c) standing in the anatomical position. Significant differences were observed between the lying, sitting and standing positions (p<0.05), between genders (p<0.05), between limbs (p<0.05) and between the right and left segments in the lower limb in both genders [males (p=0.014) and females (p=0.009)] in the lying position. However, no significant differences were observed between the right and left segments in the upper limbs (p>0.05). The BFR point appears to differ between positions, genders, lower limbs and segments. Therefore, it is recommended that health professionals should check the BFR point in the position relating to the exercise that will be performed, taking into account gender, lower limbs and body segments.

A verificação do pulso auscultatório da restrição de fluxo sanguíneo (RFS) total tem sido fator limitante dos estudos devido à forma de avaliação e prescrição, já que as medidas hemodinâmicas podem sofrer influência direta da gravidade. O objetivo do presente estudo foi comparar o pulso auscultatório da RFS entre as posições, sexo, membros e segmentos corporais em jovens saudáveis. Participaram do estudo 156 sujeitos, sendo 76 homens e 80 mulheres (23,9±3,7 anos, 66,5±11,5 kg, 1,67±0,07 m). Após o preenchimento da ficha cadastral, foram avaliadas a antropometria e em seguida houve a determinação da pressão de RFS. A RFS foi avaliada de forma randomizada em ambos os membros (superiores e inferiores) e ambos os segmentos (direito e esquerdo) nas posições: a) deitada em decúbito dorsal; b) sentada com joelhos e tronco em 90°; e c) em pé na posição anatômica. Observaram-se diferenças significativas entre as posições deitado, sentado e em pé (p<0,05), entre os sexos (p<0,05), entre os membros (p<0,05) e entre os segmentos direito vs. esquerdo no membro inferior em ambos os sexos [homem (p=0,014) e mulher (p=0,009)] na posição deitada. Entretanto, observou-se não existir diferenças significativas entre os segmentos direito vs. esquerdo no membro superior (p>0,05). O ponto da RFS parece diferir entre as posições, sexo, membros inferiores e segmentos. Portanto, recomenda-se que os profissionais da área da saúde devam verificar o ponto da RFS na posição referente ao exercício que será realizado, levando em consideração o sexo, membros inferiores e segmentos corporais.

Physical exercises with free weights and elastic bands can improve body composition parameters in postmenopausal women: WEB protocol with a randomized controlled trial.

OBJECTIVE: The aim of this study was to assess the impact of a program of supervised physical exercises (WEB protocol) versus home-based exercises on body composition (lean mass and fat mass) in postmenopausal women. METHODS: The initial sample comprised 60 women who were randomized into two groups. After exclusion, the final randomized sample included a supervised group (n = 16; mean age, 66.4 ± 6.5 y) and a home group (n = 18; mean age, 68.2 ± 6.0 y). Both groups underwent a 12-month intervention with physical exercises, including muscle impact exercises and strength and stretching consisting of two weekly sessions of 60 minutes. Body composition was determined by densitometry. RESULTS: The supervised group exhibited increased lean mass in the upper limbs (P = 0.003) and lower limbs (P = 0.011), total lean tissue (P = 0.015), and appendicular lean mass index (P = 0.001) compared with baseline. The home group exhibited no differences in the lean mass assessments. CONCLUSIONS: Our results suggest that regular supervised physical exercises with free weights and elastic bands can promote greater improvements in lean body mass than unsupervised exercises in postmenopausal women.