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Your search keyword '"Tomoya Kishimoto"' showing total 2 results
Start Over Author "Tomoya Kishimoto" Topic electromyography
2 results on '"Tomoya Kishimoto"'

1. Muscle activity during backward perturbation response in patients with clinical vertebral compression fractures

Author

Tadanobu Suehiro, Tomoya Kishimoto, Kenichi Kobara, and Kastushi Kuniyasu

Subjects
030506 rehabilitation, medicine.medical_specialty, Vertebral compression fracture, Vastus medialis, Kyphosis, Physical Therapy, Sports Therapy and Rehabilitation, Electromyography, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, medicine, Orthopedics and Sports Medicine, In patient, Muscle activity, Rectus abdominis muscle, Backward perturbation, medicine.diagnostic_test, business.industry, 030229 sport sciences, medicine.disease, Low back pain, Cardiology, Original Article, medicine.symptom, 0305 other medical science, business
Abstract

The present study examined muscle activity in response to backward perturbation in patients with clinical vertebral compression fracture (CVCF). The subjects were 32 patients aged 65 years and above consisting of 16 each with (CVCF group) and without (control group) CVCF. The time to peak activity, and time of onset of muscle activity of the anterior tibial, vastus medialis, and rectus abdominis muscles when unexpected backward perturbation was applied were evaluated by surface electromyography. The strength of perturbation was 4% or 6% of the subject's body weight. In addition, the presence of the stepping reaction to perturbation, severity of low back pain, and vertebral alignment were evaluated. Each item was compared between the two groups. In the CVCF group, kyphosis and severity of low back pain were significantly more severe, the time to peak activity of the anterior tibial muscle after the application of perturbation at 6% of the body weight was significantly shorter, and the time of onset of activity of the rectus abdominis muscle was significantly delayed. This suggests that the time to peak activity of the anterior tibial muscle is shortened and the time of onset of activity of the rectus abdominis muscle is delayed in unexpected backward perturbation in patients with CVCF.

Published
2019

2. Factors Involved in Higher Knee Extension Torque Induced by Repetitive Peripheral Magnetic Stimulation.

Author

Masanori Kamiue, Tomotaka Ito, Akio Tsubahara, and Tomoya Kishimoto

Subjects
*SKELETAL muscle physiology, *MUSCLE physiology, *QUADRICEPS muscle physiology, *MUSCLE anatomy, *KNEE joint, *TORQUE, *EXERCISE tests, *STATISTICS, *RANGE of motion of joints, *MUSCLE contraction, *SAMPLE size (Statistics), *REGRESSION analysis, *MANN Whitney U Test, *MAGNETOTHERAPY, *TREATMENT effectiveness, *LEG, *INFORMED consent (Medical law), *REOPERATION, *DESCRIPTIVE statistics, *ELECTROMYOGRAPHY, *FRIEDMAN test (Statistics), *DATA analysis, *BODY mass index, *DATA analysis software, *ADIPOSE tissues
Abstract

Objective: The study aimed to determine the relationship between knee extension torque induced by repetitive peripheral magnetic stimulation and the characteristics of the participants. Design: This was a basic study with noninvasive intervention. Knee extension torque induced by repetitive peripheral magnetic stimulation (repetitive peripheral magnetic stimulation–induced torque) and maximum voluntary contraction were measured. Stepwise method of multiple regression was performed to determine the factors affecting repetitive peripheral magnetic stimulation–induced torque at 100% intensity and repetitive peripheral magnetic stimulation–induced torque divided by maximum voluntary contraction (percent maximum voluntary contraction). Subcutaneous fat thickness, vastus lateralis muscle thickness measured by ultrasound, maximum voluntary contraction, and mean power frequency of electromyography during maximum voluntary contraction were selected as independent variables. Results: Repetitive peripheral magnetic stimulation was applied to the right vastus lateralis of 30 young healthy adults (average age, 21.1 ± 0.3 yrs). In the multiple regression analysis, repetitive peripheral magnetic stimulation–induced torque (P < 0.001) was shown to be independently and significantly associated with maximum voluntary contraction (β = 0.510), subcutaneous fat thickness (β = −0.358), and vastus lateralis muscle thickness (β = 0.208), while percent maximum voluntary contraction value (P < 0.05) was independently and significantly associated with vastus lateralis muscle thickness (β = 1.059). Conclusions: Repetitive peripheral magnetic stimulation–induced torque decreases with thicker subcutaneous fat and increases with stronger maximum voluntary contraction or with thicker muscle. [ABSTRACT FROM AUTHOR]

Published
2024
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