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Low Level Laser Therapy in Heart Failure Patients.

12. august 2015 opdateret af: Pedro Dal Lago, Federal University of Health Science of Porto Alegre

Acute Effects of Low Level Laser Therapy in Muscle Function of Patients With Heart Failure.

Heart failure (HF) is an important public health problem being considered an emerging epidemic, therefore, strategies are essential to improve symptoms and to decrease the money expenditure on healthcare. Based on the knowledge about the syndrome of heart failure, new approaches are needed to decrease the symptoms, to enhance the quality of life of these patients and highlight the non-pharmacological therapies such as the use of phototherapy. The objective of this study is to study the effect of low level laser therapy in muscle function and tissue oxygenation of the lower limbs in patients with heart failure. It is a randomized, double-blind, including 20 individuals with heart failure, with stable, class II or III according to the New York Heart Association (NYHA). It will be evaluated the acute effects of a LASER intervention applied before a fatigue protocol throught muscle function and tissue oxygenation in the participants. Evaluations will be performed by an isokinetic dynamometer, near infrared spectroscopy (NIRS) and electromyography . It will be analyzed the concentration of oxyhemoglobin and deoxyhemoglobin, total hemoglobin concentration, the difference between these concentrations, muscular torque, fatigue index and muscle activation. The data will be subjected to distribution normality test and if they have normal distribution, the differences between the interventions will be checked by analysis of variance, considering significant ap <0.05. If the data is non-parametric distribution will be using the Mann-Whitney or Kruskal-Wallis. The SPSS 19.0 software will be used as a tool for data analysis. The investigators expected to find as outcomes of this study an increase in peripheral muscle function and tissue oxygenation and also a delay in the development of muscle fatigue in patients with HF submitted to acute intervention with LASER.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Day 1: Informed Consent signature and Clear (IC); Application of the Minnesota Living with Heart Failure Questionnaire (MLHFQ); Measurement of the muscle thickness with use of ultrasound; Anatomical points definition for electrode placement of Electromyography (EMG); Warming up on stationary bike; Subject's position in the Isokinetic, placement of EMG electrodes and NIRS´ optodes; Baseline measurement (peak torque and muscle fatigue protocol); Stretching exercises for the lower limbs muscles; 48-hour interval.

Day 2: Warming up on stationary bike; LASER / Placebo application; Subject's position in the Isokinetic, placement of EMG electrodes and NIRS´ optodes; Peak torque and muscle fatigue protocol in the Isokinetic equipment; Stretching exercises for the lower limbs muscles; 48-hour interval.

Day 3: Warming up on stationary bike; LASER / Placebo application; Subject's position in the Isokinetic, placement of EMG electrodes and NIRS´ optodes; Peak torque and muscle fatigue protocol in the Isokinetic equipment; Stretching exercises for the lower limbs muscles.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

20

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Brasilien
    • RS
      • Porto Alegre, RS, Brasilien, 90050170
        • Rekruttering
        • UFCSPA
        • Kontakt:
        • Kontakt:
        • Underforsker:
          • Marilia Lambrecht

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

55 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Participants who consent to cooperate with this study and meet the following inclusion criteria: a) to have a clinical diagnosis of heart failure (ejection fraction of the left ventricle less than 40% secondary to ischemia or idiopathic dilated cardiomyopathy) functional class II or III, according to the NYHA classification ; b) be medically stable in the 30 days prior to enrollment in the study and, c) not have participated or are participating in cardiac rehabilitation program.

Exclusion Criteria:

  • The sample shall be excluded: a) participants who did not consent to participate in the study, b) participants with present insufficient level of understanding for the tests, c) participants that are making use of anti-inflammatory drugs steroids and nonsteroidal, d) the ones that have limitations to perform physical activity (exacerbation of fatigue, extreme breathlessness, arthritis, claudication, angina), e) participants with musculoskeletal disease, brain vascular disease and psychiatric illness and f) the ones who not adhere to the schedule of activities proposed in the study.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: LASER

Subject will receive application of LASER before muscle fatigue protocol.

Note: this is a crossover study.
Enhed: LASER
Low level LASER therapy will be applied in six different regions of the thight from the dominant limb, before a fatigue protocol using a isokinetic equipment.
Placebo komparator: LASER PLACEBO

Subject will receive application of LASER (now deactivated) before muscle fatigue protocol.

Note: this is a crossover study.
Enhed: LASER PLACEBO
The low level LASER therapy turned off (placebo) will be applied in six different regions of the thight from the dominant limb, before a fatigue protocol using a isokinetic equipment.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in muscle torque after a fatigue protocol in HF patients
Tidsramme: 8 days
Muscle torque with an isokinetic equipment will be accessed after a fatigue protocol in patients with heart failure.
8 days

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Federal University of Health Science of Porto Alegre

Efterforskere

  • Ledende efterforsker: Pedro Dal Lago, Doctor, Federal University of Health Science of Porto Alegre

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. august 2015

Primær færdiggørelse (Faktiske)

1. august 2015

Datoer for studieregistrering

Først indsendt

22. juli 2015

Først indsendt, der opfyldte QC-kriterier

23. juli 2015

Først opslået (Skøn)

27. juli 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

13. august 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. august 2015

Sidst verificeret

1. august 2015

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 37904814.0.0000.5345

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Hjertefejl

Kliniske forsøg med LASER

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Sponsorer og samarbejdspartnere

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Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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