Fluctuations in Upper and Lower Body Movement during Walking in Normal Pressure Hydrocephalus and Parkinson’s Disease Assessed by Motion Capture with a Smartphone Application, TDPT-GT
Chifumi Iseki,
Shou Suzuki,
Tadanori Fukami,
Shigeki Yamada,
Tatsuya Hayasaka,
Toshiyuki Kondo,
Masayuki Hoshi,
Shigeo Ueda,
Yoshiyuki Kobayashi,
Masatsune Ishikawa,
Shigenori Kanno,
Kyoko Suzuki,
Yukihiko Aoyagi,
Yasuyuki Ohta
Affiliations
Chifumi Iseki
Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
Shou Suzuki
Department of Informatics, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan
Tadanori Fukami
Department of Informatics, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan
Shigeki Yamada
Department of Neurosurgery, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
Tatsuya Hayasaka
Department of Anesthesiology, Yamagata University School of Medicine, Yamagata 990-2331, Japan
Toshiyuki Kondo
Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Yamagata 990-2331, Japan
Masayuki Hoshi
Department of Physical Therapy, Fukushima Medical University School of Health Sciences, 10-6 Sakaemachi, Fukushima 960-8516, Japan
Shigeo Ueda
Shin-Aikai Spine Center, Katano Hospital, Katano 576-0043, Japan
Yoshiyuki Kobayashi
Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa II Campus, University of Tokyo, Kashiwa 277-0882, Japan
Masatsune Ishikawa
Normal Pressure Hydrocephalus Center, Rakuwakai Otowa Hospital, Kyoto 607-8062, Japan
Shigenori Kanno
Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
Kyoko Suzuki
Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
Yukihiko Aoyagi
Digital Standard Co., Ltd., Osaka 536-0013, Japan
Yasuyuki Ohta
Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Yamagata 990-2331, Japan
We aimed to capture the fluctuations in the dynamics of body positions and find the characteristics of them in patients with idiopathic normal pressure hydrocephalus (iNPH) and Parkinson’s disease (PD). With the motion-capture application (TDPT-GT) generating 30 Hz coordinates at 27 points on the body, walking in a circle 1 m in diameter was recorded for 23 of iNPH, 23 of PD, and 92 controls. For 128 frames of calculated distances from the navel to the other points, after the Fourier transforms, the slopes (the representatives of fractality) were obtained from the graph plotting the power spectral density against the frequency in log–log coordinates. Differences in the average slopes were tested by one-way ANOVA and multiple comparisons between every two groups. A decrease in the absolute slope value indicates a departure from the 1/f noise characteristic observed in healthy variations. Significant differences in the patient groups and controls were found in all body positions, where patients always showed smaller absolute values. Our system could measure the whole body’s movement and temporal variations during walking. The impaired fluctuations of body movement in the upper and lower body may contribute to gait and balance disorders in patients.
