Health TrialsbyHealthPanel

Effects of Blood Flow Restriction on Post-Exercise Recovery in Amateur Runners

ConditionsRecovery MethodsRecovery Time
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexMale
Age18-40
SponsorPaulista University

About this trial

Street running has become an increasingly popular sport. As a result, effective recovery strategies after exercise are essential. In this context, two techniques stand out: one already validated, active recovery (AR), and another with potential, blood flow restriction (BFR). This study aims to investigate whether using both techniques simultaneously can benefit practitioners and improve outcomes compared to complete rest.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

1 presence of any health condition that contraindicates or prevents exercise;

2 diabetes and diagnosed high blood pressure;

3 inflammatory, psychiatric, cardiovascular and/or respiratory rheumatological disease; - -4 being dependent on alcohol, consuming drugs and/or being a smoker;

5 history of knee surgery (e.g., meniscal repair and ligament reconstruction) or recent lower limb musculoskeletal injury that may impair performance during tests or interventions (e.g., muscle injury, tendinopathy, patellofemoral pain and/or back pain column in the last six months);

Disqualifiers

1 have a health problem that does not allow them to continue;

2 wish to leave the study;

3 not sign the consent form

Trial design

Design model

Parallel

Treatments tested in this trial

  • Active Recovery with Blood Flow Restriction

    Device

    10-minute active recovery protocol performed with blood flow restriction using a pneumatic cuff set at 60% of the participant's total occlusion pressure.

  • Active Recovery

    Other intervention

    10-minute active recovery protocol.

Treatment groups

34 Participants
are divided into 3 treatment groups
Group A: Active Recovery and Blood Flow RestrictionExperimental treatment 1 intervention
Group B: Active RecoveryActive comparator 1 intervention
Group C: ControlNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

Isometric strength of the triceps surae

The isometric peak torque of the triceps surae will be measured using a digital handheld dynamometer (DD-300, Instrutherm). Participants will lie in a prone position with the knee flexed at 90°, foot dorsiflexed, and will be instructed to push maximally against the dynamometer. Three attempts will be performed with a 1-minute rest interval. The highest value will be used for analysis.

Time frame
Change from baseline at 96 hours after exercise
2

Aerobic capacity

Aerobic capacity will be evaluated using a 3-minute all-out running test (TM3) on a non-motorized treadmill. After a 5-minute warm-up at 7 km/h, participants will run at maximal effort for 3 minutes. Power and velocity outputs will be recorded by the treadmill's sensors and used to calculate critical power (CP) and critical velocity (CV).

Time frame
Change from baseline at 96 hours after exercise
3

Lower limb muscle power

Muscle power will be assessed through the Squat Jump test using a contact platform (Multisprint). Participants will begin in a 90° knee flexion position (verified with a goniometer), with hands on hips, and will perform a vertical jump without countermovement. Variables to be analyzed will include jump height, modified reactive strength index, jump power, and take-off moment.

Time frame
Change from baseline at 96 hours after exercise
4

Muscle soreness and pain threshold

Muscle soreness will be assessed using a Numeric Pain Rating Scale (0-10). Pain threshold will be measured with a pressure algometer (FPX 50/220; Wagner) at four sites: biceps femoris, rectus femoris, tibialis anterior, and gastrocnemius. Measurements will be recorded in kgf and will not exceed 2.55 kgf.

Time frame
Change from baseline at 96 hours after exercise

Secondary outcomes

Other outcomes

1

Occlusion pressures (AOP)

To determine the AOP, the Doppler equipment transducer will be used, which will be positioned over the posterior tibial artery to capture the auscultatory pulse. A blood pressure cuff will be fixed to the participant's thigh close to the region of the inguinal fold of the dominant limb, and then with the inflatable region of the cuff on the medial portion of the thigh covering the femoral artery, it will be progressively inflated, waiting 15 seconds every 30 mmHg until the point at which the auscultatory pulse of the tibial artery is interrupted.

Time frame
Baseline

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Paulista University

Lead sponsor

Source ClinicalTrials.gov
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