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Phototherapy Applied in Association With Muscular Training

18 octobre 2016 mis à jour par: 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.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Description détaillée

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).

Type d'étude

Interventionnel

Inscription (Réel)

48

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

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

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans à 35 ans (Adulte)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Homme

La description

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.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Soins de soutien
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Quadruple

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: 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.
Dispositif: Active or Placebo Phototherapy (MR4)
Autres noms:
  • Appareil MR4 - appareil qui combine des lasers super-pulsés et des LED rouges et infrarouges (Multi Radiance Medical, Solon, OH, USA)
Expérimental: 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.
Dispositif: Active or Placebo Phototherapy (MR4)
Autres noms:
  • Appareil MR4 - appareil qui combine des lasers super-pulsés et des LED rouges et infrarouges (Multi Radiance Medical, Solon, OH, USA)
Expérimental: 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.
Dispositif: Active or Placebo Phototherapy (MR4)
Autres noms:
  • Appareil MR4 - appareil qui combine des lasers super-pulsés et des LED rouges et infrarouges (Multi Radiance Medical, Solon, OH, USA)
Expérimental: 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.
Dispositif: Active or Placebo Phototherapy (MR4)
Autres noms:
  • Appareil MR4 - appareil qui combine des lasers super-pulsés et des LED rouges et infrarouges (Multi Radiance Medical, Solon, OH, USA)

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Change from baseline Maximum voluntary contraction in the isokinetic dynamometer (MVC) at 12 weeks
Délai: 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
Délai: 12 weeks
Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training
12 weeks

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
1-RM test
Délai: 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

Autres mesures de résultats

Mesure des résultats
Description de la mesure
Délai
Thigh perimetry
Délai: 12 weeks
Muscle mass measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training.
12 weeks

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

University of Nove de Julho

Collaborateurs

Fundação de Amparo à Pesquisa do Estado de São Paulo

Les enquêteurs

  • Directeur d'études: Ernesto Leal-Junior, PhD, University of Nove de Julho

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude

1 mars 2016

Achèvement primaire (Réel)

1 août 2016

Achèvement de l'étude (Réel)

1 octobre 2016

Dates d'inscription aux études

Première soumission

11 mars 2016

Première soumission répondant aux critères de contrôle qualité

16 mars 2016

Première publication (Estimation)

22 mars 2016

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

20 octobre 2016

Dernière mise à jour soumise répondant aux critères de contrôle qualité

18 octobre 2016

Dernière vérification

1 octobre 2016

Plus d'information

Termes liés à cette étude

Mots clés

Autres numéros d'identification d'étude

  • PhD437.894

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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