NCT05523674

Effects of Warm-up Intensity and Blood Flow Restriction

Completed NA Last updated 31 May 2025

What this trial tests

NA trial testing Warm-up exercise in Healthy Men in 108 participants. Completed in 15 December 2024.

Timeline

15 March 2024

Primary endpoint
20 August 2024

15 December 2024

Quick facts

Lead sponsor	Paulista University
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	crossover
Masking	double
Primary purpose	other
Enrollment	108
Start date	15 March 2024
Primary completion	20 August 2024
Estimated completion	15 December 2024
Sites	2 locations across Brazil

Drugs / interventions tested

• Warm-up exercise
• Warm-up exercise with Blood Flow Restriction

Conditions studied

• Healthy Men — all drugs for Healthy Men →

Sponsor

Paulista University

Who can join

Adults 18 to 35, male only, with Healthy Men. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Introduction: warming up has the function of preparing the body structures for a given task to be performed during sports, increasing body and muscle temperature, focusing on improving performance. Therefore, the use of the blood flow restriction technique (BFR) can be seen as a promising alternative for promoting greater mechanical and muscular stress, thus providing a more efficient warm-up and optimizing performance. Objectives: to analyze the effects of RFS used during low-intensity warm-up compared with low-intensity and high-intensity warm-up without RFS on performance (jump test and 30-meter sprint test) and skin surface temperature. In addition to analyzing and comparing, after the warm-up protocols with and without RFS, the acute responses on perceptual outcomes (perception of pain, change in sensitivity, subjective perception of exertion and perception of discomfort in relation to RFS) and muscle outcomes (tonus , muscle stiffness and elasticity). Methods: a randomized controlled clinical trial will be carried out, with 33 amateur soccer players aged between 18 and 35 years who will be randomly divided into three groups: low-intensity warm-up without RFS (30% VO2max), high-intensity warm-up without RFS ( 80% VO2max) and low-intensity warm-up associated with BFR (80% of total occlusion pressure) \[30% VO2max-BFR\]. All groups will carry out the heating protocol and the outcomes will be evaluated at baseline and immediately after the end of the heating, as well as 10 and 20 minutes after its completion, namely: skin surface temperature through thermography; tone, stiffness and muscle elasticity by myotometry, subjective perception of pain (VAS); pain threshold through the pressure algometer; subjective perception of exertion (BORG scale); perception of discomfort in relation to RFS (LIKERT-CR-10 scale); 30-meter sprints measured through photocells and vertical jump, measured through the force platform. Descriptive statistics will be used and comparisons will be made using the generalized linear mixed model, assuming a significance level of p\<0.05.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. Effects of low-intensity warm-up associated with blood flow restriction: A study protocol for a randomized controlled clinical trial
   Filho CATT, Vendrame JW, Cavina APdS, Junior EP, et al · · 2023 · DOI 10.21203/rs.3.rs-3188499/v1