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Isolated Resistance Training and Neuromuscular Electrical Stimulation in Patients With Femoral Intra Aortic Balloon Pump.

NCT06316349 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2024-07-09

No results posted yet for this study

Summary

The objective of this randomized clinical trial is to compare the effects of a standardized exercise program alone versus the same program combined with neuromuscular electrical stimulation in patients undergoing heart failure . The main questions it aims to answer are:

* Assessing the ultrasonographic parameters: echo intensity (echogenicity), cross-sectional area, thickness, and pennation angle of the rectus femoris muscle in both lower limbs.
* Evaluating the strength of the femoral quadriceps muscle
* Evaluating the changes in the chronaxie of the rectus femoris muscle in both lower limbs.

The protocol will have a total duration of 32 days, with an initial intervention period of 18 days, followed by a 14-day follow-up period.

Conditions

  • Heart Failure
  • Physical Therapy
  • Neuromuscular Electrical Stimulation

Interventions

OTHER

Isolated Resistance Training Program

The hip range of motion (ROM) will be fixed at 45 degrees due to the limitation imposed by the femoral insertion of the intra-aortic balloon pump in both lower limbs to allow for a 45-degree knee extension ROM. Four sets of 10 knee extension repetitions will be performed with a 90-second rest interval between sets. The intensity (resistive load) will be set at 60% of the baseline load, calculated using the one-repetition maximum (1RM) test and increased by 10% after every 5 interventions.

OTHER

Neuromuscular electrical stimulation

For NMES, two electrodes (area of 5 x 9 cm) will be positioned perpendicular to the muscles of the femoral quadriceps. The parameters of NMES will remain fixed throughout the study: pulsed, biphasic current, with a frequency of 35Hz, pulse width of 1000µs, on-time of 7 seconds (with 3 seconds of rise, 1 second of sustainment, and 3 seconds of descent), and off-time switched off. These settings allow the onset of NMES to be synchronous with the start and end of hip extension for simultaneous execution with resistance exercises and a total of 40 stimulations. The intensity will be gradually adjusted until evoked contractions of grade 4 to 5 (partial muscle recruitment and total muscle recruitment) or the maximum intensity tolerated by the patient is achieved.

Sponsors & Collaborators

  • University of Sao Paulo General Hospital

    lead OTHER

Principal Investigators

  • Rafael M Ianotti, PT · Instituto do Coração - Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-06-18
Primary Completion
2025-03-18
Completion
2026-03-18

Countries

  • Brazil

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06316349 on ClinicalTrials.gov