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Low Level Laser Therapy in Heart Failure Patients.

12. august 2015 oppdatert av: 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.

Studieoversikt

Status

Ukjent

Forhold

Intervensjon / Behandling

Detaljert 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.

Studietype

Intervensjonell

Registrering (Forventet)

20

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • RS
      • Porto Alegre, RS, Brasil, 90050170
        • Rekruttering
        • UFCSPA
        • Ta kontakt med:
        • Ta kontakt med:
        • Underetterforsker:
          • Marilia Lambrecht

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

55 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Tildeling: Randomisert
  • Intervensjonsmodell: Crossover-oppdrag
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: LASER

Subject will receive application of LASER before muscle fatigue protocol.

Note: this is a crossover study.

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.

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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

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

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. august 2015

Primær fullføring (Faktiske)

1. august 2015

Datoer for studieregistrering

Først innsendt

22. juli 2015

Først innsendt som oppfylte QC-kriteriene

23. juli 2015

Først lagt ut (Anslag)

27. juli 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

13. august 2015

Siste oppdatering sendt inn som oppfylte QC-kriteriene

12. august 2015

Sist bekreftet

1. august 2015

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 37904814.0.0000.5345

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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