Infrared Laser and Classical Ballerinas' Feet

NCT ID: NCT04489784

Last Updated: 2020-07-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

8 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-01

Study Completion Date

2018-07-01

Brief Summary

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Overuse injuries and painful symptoms in athletes and dancers (especially classical ballerinas) may lead to reduced functional performance. However, laser application may reduce pain and increase physical conditioning. The aim of the current study was to evaluate the immediate and long-term effects of infrared laser on classical ballerinas' feet. The hypothesis investigators was that the infrared laser would be able to reduce pain perception and enhance functional performance in ballerinas.

Detailed Description

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High risk of injuries and painful symptoms in athletes and dancers (especially classical ballerinas) may lead to reduced functional performance. The use of photobiomodulation may improve functional performance in ballerinas that are affected by foot pain. An aluminum gallium arsenide (AlGaAs) diode laser device was uded. Infrared laser (808 nm) was applied on ballerina's feet twice a week during three months. Thermography, algometry and unipodal static standing balance test were performed. There were pain relief and improvement of functional performance in ballerinas.

Conditions

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Pain

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

To evaluate the immediate and long-term effects of infrared laser on classical ballerinas' feet.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment

Laser treatment on ballerina's feet.

Group Type EXPERIMENTAL

Infrared Laser

Intervention Type DEVICE

An aluminum gallium arsenide (AlGaAs) diode laser device (Twin laser, MMOptics, São Carlos, SP, Brazil) was used. The irradiation parameters were as follows: infrared laser (808 nm wavelength) with a spot area of 0.04 cm2, and an average optical power of 100 mW operated in a continuous mode during 1 minute per point, leading to an irradiance of 2,500 mW/cm2, energy of 6 J and fluence of 125 J/cm2 per point. The laser was applied on ballerina's feet twice a week during three months.

Interventions

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Infrared Laser

An aluminum gallium arsenide (AlGaAs) diode laser device (Twin laser, MMOptics, São Carlos, SP, Brazil) was used. The irradiation parameters were as follows: infrared laser (808 nm wavelength) with a spot area of 0.04 cm2, and an average optical power of 100 mW operated in a continuous mode during 1 minute per point, leading to an irradiance of 2,500 mW/cm2, energy of 6 J and fluence of 125 J/cm2 per point. The laser was applied on ballerina's feet twice a week during three months.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

\- Female adults who perform classical ballet training and feel pain in their foot

Exclusion Criteria

\- The occurrence of injuries in the last 6 months
Minimum Eligible Age

18 Years

Maximum Eligible Age

25 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Sao Paulo

OTHER

Sponsor Role lead

Responsible Party

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Fernanda Rossi Paolillo

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Fernanda Rossi Paolillo

São Carlos, São Paulo, Brazil

Site Status

Countries

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Brazil

References

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Leal Junior EC, Lopes-Martins RA, Rossi RP, De Marchi T, Baroni BM, de Godoi V, Marcos RL, Ramos L, Bjordal JM. Effect of cluster multi-diode light emitting diode therapy (LEDT) on exercise-induced skeletal muscle fatigue and skeletal muscle recovery in humans. Lasers Surg Med. 2009 Oct;41(8):572-7. doi: 10.1002/lsm.20810.

Reference Type BACKGROUND
PMID: 19731300 (View on PubMed)

Paolillo FR, Paolillo AR, Joao JP, Frasca D, Duchene M, Joao HA, Bagnato VS. Ultrasound plus low-level laser therapy for knee osteoarthritis rehabilitation: a randomized, placebo-controlled trial. Rheumatol Int. 2018 May;38(5):785-793. doi: 10.1007/s00296-018-4000-x. Epub 2018 Feb 26.

Reference Type BACKGROUND
PMID: 29480363 (View on PubMed)

Adabbo M, Paolillo FR, Bossini PS, Rodrigues NC, Bagnato VS, Parizotto NA. Effects of Low-Level Laser Therapy Applied Before Treadmill Training on Recovery of Injured Skeletal Muscle in Wistar Rats. Photomed Laser Surg. 2016 May;34(5):187-93. doi: 10.1089/pho.2015.4031. Epub 2016 Apr 8.

Reference Type BACKGROUND
PMID: 27058781 (View on PubMed)

Shah S. Determining a young dancer's readiness for dancing on pointe. Curr Sports Med Rep. 2009 Nov-Dec;8(6):295-9. doi: 10.1249/JSR.0b013e3181c1ddf1.

Reference Type BACKGROUND
PMID: 19904068 (View on PubMed)

Other Identifiers

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Ballet

Identifier Type: -

Identifier Source: org_study_id

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