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Phototherapy Applied in Association With Muscular Training

18. oktober 2016 oppdatert av: Adriane Aver Vanin, University of Nove de Julho

Phototherapy Applied in Association With Muscular Training: Evaluation of Different Moments of Applications

The effects of phototherapy has been widely studied by some research groups. The investigators know that there are positive results with light application to improve muscle performance and delay fatigue. However, there are few studies showing its´ effects on muscular training. Therefore, the aim of this study was to assess the effects of phototherapy applied at different times during 12 weeks of strength training. For such, 48 volunteers, healthy male, from 18 to 35 years old were recruited to perform a strength training protocol for the anterior muscle of the thigh development. Volunteers performed the training protocol three times a week for 12 weeks. There were assessed isometric peak torque in isokinetic dynamometer, concentric peak torque, 1-repetition maximum test in the leg extension and leg press machines and bilateral thigh perimetry.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This is a clinical, randomized, controlled placebo and double-blind study. Forty-eight participants performed muscular training protocol. Subjects practiced a protocol training with 60% of the load followed by 80% of the load, measured through 1-repetition maximum test, in all sessions of the training protocol. The training protocol consisted in performing 3 sets of 7 repetitions with 60% of 1-RM, and 4 set of 7 repetitions with 80% of 1-RM. This protocol was performed in every sessions, three times a week, employing leg press and leg extension machines.

Phototherapy, active or placebo, were applied in 6 different points of anterior muscle of the thigh before and after each training session. Only one investigator, that did not participate in any phase of the assessments and trainings sessions, knew about what program is active or placebo in phototherapy device. Randomisation carried out by a simple drawing of lots (A, B, C, or D) in the first visit. The phototherapy unit emitted the same sound regardless of the program used, active or placebo. Either strength training lasted 12 weeks and assessments were performed at baseline, 4, 8 and 12 weeks. There were evaluated maximal voluntary contraction (MVC), concentric torque, bilateral thigh perimetry and 1-repetition maximum test (1-RM).

Studietype

Intervensjonell

Registrering (Faktiske)

48

Fase

  • Ikke aktuelt

Kontakter og plasseringer

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

Studiesteder

  • Brasil
    • SP
      • São Paulo, SP, Brasil, 01504-001
        • Universidade Nove de Julho

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

18 år til 35 år (Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Mann

Beskrivelse

Inclusion Criteria:

  • healthy individuals,
  • active, that performed less than two exercise sessions per week
  • when they presented musculoskeletal injury to the hips or knees in the previous 2 months,
  • used pharmacological agents or nutritional supplements regularly, and
  • Subjects that did not attend a minimum rate of 80% of all strength training sessions
  • Suffered musculoskeletal injury during the ongoing of the study were also excluded.

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Støttende omsorg
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Firemannsrom

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Group A - Active or Placebo Phototherapy

Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo.

The subjects allocated in group A, received program 1 before strength training, and the same program 1 after training.
Enhet: Active or Placebo Phototherapy (MR4)
Andre navn:
  • MR4-enhet - enhet som kombinerer superpulserende lasere og røde og infrarøde lysdioder (Multi Radiance Medical, Solon, OH, USA)
Eksperimentell: Group B - Active or Placebo Phototherapy

Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo.

The subjects allocated in group B, received program 1 before strength training, and program 2 after training.
Enhet: Active or Placebo Phototherapy (MR4)
Andre navn:
  • MR4-enhet - enhet som kombinerer superpulserende lasere og røde og infrarøde lysdioder (Multi Radiance Medical, Solon, OH, USA)
Eksperimentell: Group C - Active or Placebo Phototherapy

Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo.

The subjects allocated in group C, received program 2 before strength training, and program 1 after training.
Enhet: Active or Placebo Phototherapy (MR4)
Andre navn:
  • MR4-enhet - enhet som kombinerer superpulserende lasere og røde og infrarøde lysdioder (Multi Radiance Medical, Solon, OH, USA)
Eksperimentell: Group D - Active or Placebo Phototherapy

Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo.

The subjects allocated in group D, received program 2 before strength training, and program 2 after training.
Enhet: Active or Placebo Phototherapy (MR4)
Andre navn:
  • MR4-enhet - enhet som kombinerer superpulserende lasere og røde og infrarøde lysdioder (Multi Radiance Medical, Solon, OH, USA)

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change from baseline Maximum voluntary contraction in the isokinetic dynamometer (MVC) at 12 weeks
Tidsramme: 12 weeks
Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training
12 weeks
Change from baseline Concentric Torque at 12 weeks
Tidsramme: 12 weeks
Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training
12 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
1-RM test
Tidsramme: 12 weeks
Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training. This test estimated the load of the exercises.
12 weeks

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Thigh perimetry
Tidsramme: 12 weeks
Muscle mass measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training.
12 weeks

Samarbeidspartnere og etterforskere

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

Sponsor

University of Nove de Julho

Samarbeidspartnere

Fundação de Amparo à Pesquisa do Estado de São Paulo

Etterforskere

  • Studieleder: Ernesto Leal-Junior, PhD, University of Nove de Julho

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. mars 2016

Primær fullføring (Faktiske)

1. august 2016

Studiet fullført (Faktiske)

1. oktober 2016

Datoer for studieregistrering

Først innsendt

11. mars 2016

Først innsendt som oppfylte QC-kriteriene

16. mars 2016

Først lagt ut (Anslag)

22. mars 2016

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

20. oktober 2016

Siste oppdatering sendt inn som oppfylte QC-kriteriene

18. oktober 2016

Sist bekreftet

1. oktober 2016

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Andre studie-ID-numre

  • PhD437.894

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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