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Correlation between functional function and reporting responses during eccentric resistance training sessions associated with blood flow restriction: a randomized controlled trial

Grant number: 19/05603-1
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2019
Effective date (End): August 31, 2020
Field of knowledge:Health Sciences - Physiotherapy and Occupational Therapy
Principal Investigator:Franciele Marques Vanderlei
Grantee:Anne Jhuly Cardoso Cordeiro
Host Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil


Studies on resistance training with low blood pressure (TRBI) associated with blood flow restriction (RFS) have gained prominence in recent years, but there are still gaps that can be explored in relation to their physiological effects when associated with eccentric training in different intensities. In addition, it is known that the process of adaptation to training is accompanied by a series of clinical responses identified as possible limiting factors that can directly influence the functional performance of the practitioner. Objective: To perform a systematic monitoring of the clinical results during eccentric resistance training (ERT) with RFS at different intensities and to correlate them with possible changes in functional performance. Method: The study will consist of 60 male participants, allocated from a randomization in four groups, two high intensity ERT groups (one associated with RFS) and two groups of low intensity ERT (one associated with RFS) (n = 15), TREAI-RFS (n = 15), TREBI (n = 15) and TREBI-RFS (n = 15). Participants will undergo a program of triceps quadriceps muscle in the isokinetic dynamometer, lasting six weeks at intensities of 80% without RFS, 40% without RFS, 80% with RFS and 40% with peak torque (PT) eccentric three times a week. Performance outcomes (isometric, concentric and eccentric PT strength of the isokinetic dynamometer and "Single Leg Hop Test") will be assessed one week prior, the fourth week and one week after the end of the training program, and the clinical outcomes (pain using the analogue pain scale, pain threshold through the algometer, perceived exertion by the Borg scale, perception of recovery by a Likert scale, and mood by the Brunel scale) will be assessed daily before and after the end of each session. The descriptive statistical method will be used and the correlations between the outcomes will be performed through the Pearson or Spearman correlation test according to the normality of the data. All statistical analysis will assume the significance level of 5%.

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