Avaliação do efeito hemodinâmico agudo pós-exercício em diferentes intensidades de treinamento em atletas de powerlifiting paralímpico

• Autor(a) principal: Paz, Ângelo de Almeida
• Data de Publicação: 2019
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFS
• Texto Completo: http://ri.ufs.br/jspui/handle/riufs/11625
• topic: Educação física; Doenças do coração; Prevenção de doenças; Hipertensão; Pressão arterial; Hipotensão; Paralimpíadas; Exercícios resistidos; Cardiologia; Atletas paralímpicos; Hypertension; Blood pressure; Hypotension; Resistance training; Cardiology; Paralympic athletes; CIENCIAS DA SAUDE::EDUCACAO FISICA

Objectives: This dissertation was developed from two studies with the objectives: Study 1 - To analyze the acute hemodynamic responses generated by two different training methods in the paralympic powerlifting, to verify if there is a risk of cardiovascular overload and hypotensive effect within 60 minutes after end of training session; Study 2 - Comparison of hemodynamic variables and hypotensive effect in conventional powerlifting athletes and paralympic powerlifting athletes submitted to a maximum strength training session with 5 sets of 1 RM in supine exercise. Methods: The Study 1 sample consisted of 10 male paralympic powerlifting athletes (PP) (age 25.4 ± 3.3 years, body mass 70.3 ± 12.2 kg) with at least 1 year of experience and officially classified by the Brazilian Paralympic Committee (BPC). In Study 2, the sample was represented by the athletes of Study 1 to compose group 1 (PP), with 10 male athletes (conventional powerlifting) to compose group 2 (PC), without physical disabilities (age 24.4 ± 1 , 5 years, body mass 80.7 ± 6.8 kg) with at least six months' training experience. In the first week of the two studies, the training load was determined through the 1RM test for PP athletes and in the 3rd week of Study 2 for the PC group. In the 2nd and 3rd weeks of Study 1, the athletes were submitted to the training of 5 sets of 5 repetitions (at 90% of 1RM) and 5 sets of 3 repetitions (at 95% of 1RM), respectively. In the second week of Study 2, the PP group trained 5 sets of 1 replicate (at 100% of 1RM) and the PC group did the same training in the 4th week of that study. Blood pressure (BP) and heart rate (HR) were measured before training immediately after the training session and at 5', 10', 20', 30', 40', 50' and 60 minutes each training session in all athletes (PP and PC). Results: In Study 1, there were significant differences in SBP with reductions in relation to resting values (SBP = 124.2 ± 3.3) after the 5×5RM training sessions at the moments: 20 minutes (SBP = 117 ± 12.5, p = 0.019, -7.2mmHg), 30 minutes (SBP = 114 ± 9.2, p = 0.001, -10.2 mmHg), 40 minutes (SBP = 113 ± 7.7, p = 0.001 ; -11.2 mmHg) and 50 minutes (SBP = 113 ± 6.3, p = 0.001, -11.2 mmHg). In relation to the 5×3RM hove method, 10 minutes reduction (SBP = 116 ± 12.2, p = 0.031, -8.2 mmHg), 20 minutes (SBP = 117 ± 11.8, p = 0.047, -7.2 mmHg) 30 minutes (PAS = 116 ± 10.1, p = 0.034, -8.2mmHg) and 50 minutes (SBP = 114 ± 6.6, p = 0.004, - 10.2mmHg), presenting PHE at the respective training moments. In Study 2 for SBP, there were significant differences with hypotensive effect (PHE) for the PP group at 60 minutes (110.0 ± 9.9 mmHg with a reduction of 17mmHg relative to resting values, p = 0.028). In relation to the other moments and in relation to the PC group there was no hypotensive effect. Conclusion: According to the results obtained in the two studies, it can be concluded that PHE occurs in the three methods investigated for the PP group. However, in the 5×5RM and 5×3RM methods the hypotensive effect (PHE) occurs earlier (from 10' to 50') when compared to the 5×1RM method that required 60 minutes to promote PHE in elite athletes of Paralympic powerlifting after a session training.