Suppression of Myotonia in Cerebral Palsy and Adjunctive Effect of Low Level Laser Therapy on Intensive Functional Training

Asagai, Yoshimi; Watanabe, Yasutaka; Ohshiro, Toshio; Yamamoto, Kenjiro

doi:10.5978/islsm.14.171

Cited by 6 publications

(3 citation statements)

References 9 publications

(3 reference statements)

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“…For the case of a 60 s contraction on the right and left flexor carpi ulnaris the muscle fatigue were detected by means of the negative slope of regression line. A potential future application of the proposed measurement method could explore the possibility to integrate this method with low level laser therapy (LLLT) on muscles [9][10][11][12] . Finally the possibility of the use of LDMi as an evaluating procedure looks particularly stimulating, providing quantitative and qualitative indicators for the results of physiotherapeutic and rehabilitative procedures including LLLT.…”

Section: Original Articlesmentioning

confidence: 99%

Laser doppler myography (LDMi): A novel non-contact measurement method for the muscle activity

et al. 2013

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Background and aims: Electromyography (EMG) is considered the gold-standard for the evaluation of muscle activity. Transversal and dimensional changes of the muscle, during muscle activity, generate vibrational phenomena which can be measured by Laser Doppler Vibrometry (LDVi). There is a relationship between muscle contraction and vibrational activity, therefore, some information on fundamental muscle parameters can be assessed without contact with LDVi. In this paper, we explore the possibility to relate the EMG signal causing the muscle contraction and the vibrational activity also measureable on the muscle. A novel non-contact measurement methodLaser Doppler myography (LDMi) -aiming to measure the vibrational behavior of muscle during contraction, is presented herein. Correlations with some parameters normally measured with EMG are reported. Materials and methods:The proposed method has been compared with standard superficial EMG (sEMG). Signals produced with sEMG and laser Doppler myography have been simultaneously acquired and processed to test correlations on a population of 20 healthy volunteers. Tests have been carried out on the flexor carpi ulnaris and the tibialis anterior muscles (left and right). Results: Results show that it is possible to measure: The timing of muscle activation (max differences: 440 ms), the amplitude of the signals acquired during activation respect to the signals during rest (S/N), the correlation between the S/N of the sEMG and LDMi signals at different levels of force (P> 0.89), and to assess muscle fatigue. Conclusions: LDMi is a valid measurement technique for the assessment of muscle activity and fatigue. It is a non-contact method and this characteristic could suggest its use together with low level laser therapy pre-, intra-and post-LLLT sessions to evaluate the efficacy and effects of the treatments without the need for invasive electrodes.

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Section: Original Articlesmentioning

confidence: 99%

Laser doppler myography (LDMi): A novel non-contact measurement method for the muscle activity

et al. 2013

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“…(1) It suppresses myotonia associated with spastic cerebral palsy and is useful as an auxiliary means of functional training in patients with this condition. 1,2) (2) It suppresses of involuntary motions due to myotonia in patients with athetoid cerebral palsy. 3) (3) It is useful in shortening the treatment period and preventing femoral head deformity in patients with Perthes disease (femoral head necrosis seen in children).…”

Section: Introductionmentioning

confidence: 99%

Application of Low-Level Laser Therapy to Orthopedic Diseases and Evaluation of Its Optical Characteristics

Asagai

Yamamoto

Ohshiro³

2010

LASER THERAPY

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This paper reports the findings obtained in our recent clinical study of the characteristics of lowlevel laser therapy (LLLT) and discusses the possibility of applying these findings to the treatment of previously unreported orthopedic diseases. Histological study of muscles: Following long-term (3-week or longer) irradiation, there was an increase in nerve activity, suggesting the possibility that irradiation have the potential to alter the distribution of the myofiber types. Application to a patient with osteoarthritis of the hip: The narrowing of the joint space and the range of motion of hip joint alleviated or improved and the pain lessened markedly. Application to patients with congenital clubfoot: The application of LLLT and corrective massage before the correction of deformities with a cast facilitated the correction, enabling further improvement in congenital clubfoot. The possibility of the application of LLLT in patients with osteoporosis: LLLT tended to stimulate ossification and suppress bone resorption temporarily, suggesting the feasibility of applying LLLT as a means of treating osteoporosis. The possibility of the use of LLLT applied to the neck for the improving the cerebral blood flow was evaluated in patients with spastic cerebral palsy, using single photon emission computed tomography. Better knowledge of the characteristics of light may expand the scope of application of phototherapy for other diseases.

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“…Detailed information now exists on the antiinflammatory, analgesic, and regenerative effects that have been proven in many tissue types, including neurons in culture in both animals and humans, and biomodulatory effects on the muscle tone of voluntary muscles. [1][2][3][4] In 1979, Judith Walker underlined the analgesic and antiinflammatory effects of nonsurgical lasers on neuromas associated with lower limb amputation. In 1975, V.M.…”

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confidence: 99%

Nonsurgical Laser Treatment (NSLT) of Central and Peripheral Nervous System Injuries

Longo

2017

Photomedicine and Laser Surgery

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Suppression of Myotonia in Cerebral Palsy and Adjunctive Effect of Low Level Laser Therapy on Intensive Functional Training

Cited by 6 publications

References 9 publications

Laser doppler myography (LDMi): A novel non-contact measurement method for the muscle activity

Laser doppler myography (LDMi): A novel non-contact measurement method for the muscle activity

Application of Low-Level Laser Therapy to Orthopedic Diseases and Evaluation of Its Optical Characteristics

Nonsurgical Laser Treatment (NSLT) of Central and Peripheral Nervous System Injuries

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