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全文: "Sagittal plane"
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  • Yuji KODAMA, Eiki TSUSHIMA
    Journal of the Japanese Physical Therapy Association
    2015年 18 巻 1 号 29
    発行日: 2015年
    公開日: 2015/12/20
    ジャーナル フリー
    Purpose: The purpose of this study was examine the effects of hip joint angles in sagittal plane on the hip external and internal rotator force.
    Methods: Thirty-two healthy volunteers (male: sixteen people, female: sixteen people, mean age: 21.9 ± 3.8years, range: 18-33 years) participated in this study. There were 4 condition that measured the hip joint angles in that plane extension 10 degree, flexion 0 degree, flexion 45 degree and flexion 90 degree. The maximum isometric external and internal rotational force were measured with hip joint abduction 0 degree, rotation 0 degree and knee joint flexion 90 degree.
    Results: External rotator force at extension 10 degree was significantly lower than at flexion 45 degree in female, in addition to Flexion 0 degree was significantly lower than flexion 45 degree and 90 degree in both male and female. Those two sex have internal rotation force at extension 10 degree and flexion 0 degree were significantly lower than at flexion 45 degree and 90 degree in common.
    Conclusion: The effects of hip joint angles in sagittal plane on the hip external rotator force was small, on the other hand internal rotation force increased as hip joint angle of flexion.
  • Yi-Jung Tsai, Chih-Kun Hsiao, Yuan-Kun Tu, Fong-Chin Su
    会議録・要旨集 認証あり
  • Li’an Yang, Zhenqi Chen, Xiaoyue Zhang
    Journal of Oral Science
    2016年 58 巻 1 号 109-115
    発行日: 2016年
    公開日: 2016/03/26
    ジャーナル フリー
    Our study aimed to examine facial asymmetry in patients with unilateral cleft lip and palates (UCLP) using cone-beam computed tomography (CBCT) and explore the factors responsible for lower facial asymmetry in these individuals. The experimental group included 21 adolescent patients with non-syndromic UCLP while the control group comprised 14 patients without any facial cleft defects. The maxillofacial regions of the patients in the two groups were scanned using CBCT, and the Mimics 10.01 software was used to analyze the images. Multiple linear stepwise regression analysis was used to explore the factors related to the deviation of the pogonion point (Pog). Comparison of the two groups showed that the position of the lateral point of the pyriform aperture and the length of the mandibular body exhibited significant asymmetry (P < 0.05). Pog in the UCLP group deviated to the cleft side (1.24 ± 2.28 mm), and was related to B6L(R) to Sagittal plane, CdL(R) to Sagittal plane, and U6L(R) to LS plane. We concluded that significant differences between the cleft and non-cleft sides existed only around the cleft, and not in the deeper regions of the maxillary complex. Functional adaption may be the main reason responsible for chin deviation in UCLP individuals. (J Oral Sci 58, 109-115, 2016)
  • Dennosuke JINNAI, Heitaro MOGAMI, Kiyoo KAMIKAWA, Keizo MATSUMOTO, Hiroharu NODA
    Neurologia medico-chirurgica
    1964年 6 巻 183
    発行日: 1964年
    公開日: 2007/05/25
    ジャーナル フリー
  • Van Bui Dinh, 藤本 康孝
    自動制御連合講演会講演論文集
    2016年 59 巻 ThC7-2
    発行日: 2016年
    公開日: 2017/02/01
    会議録・要旨集 フリー

    The paper presents a nonlinear observer design using Automatic Differentiation (AD). In order to design a nonlinear observer, symbolic approaches are utilized for calculating the Lie derivatives and Lie brackets that are difficult to obtain for large-scale systems. Fortunately, the AD-based algorithm is applicable to high order systems. To verify the method, a simulation of 2-dimensional nonlinear system, i.e., the sagittal plane of a mono-wheel robot, is shown.

  • Yuji Fujino, Kazu Amimoto, Kazuhiro Fukata, Masahide Inoue, Kohei Shida, Hidetoshi Takahashi, Shigeru Makita
    Progress in Rehabilitation Medicine
    2017年 2 巻 20170013
    発行日: 2017年
    公開日: 2017/12/06
    ジャーナル フリー HTML

    Objective: The aim of the present study was to determine the test–retest reliability of the angle of subjective verticality in healthy young persons. Methods: The participants were ten young healthy adults, five men and five women. The subjective postural vertical (SPV) was measured in the frontal plane (with eyes open and eyes closed) and in the sagittal plane (with eyes closed). Participants were retested 1 week after the first test. The test–retest reliability for each parameter was estimated using the intra-class correlation coefficient [ICC(1,1)], and the minimal detectable change (MDC) scores were established with a confidence level of 95%. Results: The test–retest reliability for the SPV was substantial (ICC ≥0.61). The MDC95 values of the SPVs ranged from 1.1° to 2.1°. Conclusions: The test–retest reliability of the postural vertical in the frontal and sagittal planes was sufficiently high in healthy young participants.

  • Masatoshi Higuchi, Akira Okada, Seiichi Hisamoto
    人間工学
    2006年 42 巻 Supplement 号 570-571
    発行日: 2006/06/09
    公開日: 2010/03/15
    ジャーナル フリー
    Basic human body measurements (BHBMS), maximum voluntary contraction (MVC), manual strength (MS), range of motion (ROM), joint passive resistance (JPR), and physical strength (PS) were measured in a healthy Japanese population (approximately 1000 subjects, 20-84 years old) in 2001-2002, and the data of these have already been released on the NITE web page (http://www.tech.nite.go.jp/human/) as the “Human characteristics database”. BHBMS were measured at 18 measure sites. MVC, ROM, and JPR were measured in regard to the limb joints (hand, elbow, shoulder, ankle, knee and hip). MS mean the force required to push a door open, pull a door shut, turn a door knob, and all what could the subject use either arm or hand. PS was included measurement of grip strength, sitting trunk flexion, vertical jump height, jumping reaction time, and single- leg-standing time with eyes closed. The database has search and statistical analysis function, which makes it possible to retrieve data by searching for any factor and statistics (e. g., mean, standard deviation, scatterplot).
  • Seo-young Jung, Bo-ram Choi
    Journal of Physical Therapy Science
    2016年 28 巻 5 号 1657-1659
    発行日: 2016年
    公開日: 2016/05/31
    ジャーナル フリー
    [Purpose] The purpose of this study was to investigate the kinematic changes of the cervical spine during cross-legged sitting. [Subjects and Methods] In total, 19 healthy participants were recruited from among healthy students of Silla University. Each participant sat cross-legged with the right leg over the left and gazed at a target presented at 45° below the horizontal line of sight or at an object placed directly ahead, at 90° relative to horizontal for 10 minutes. [Results] With the 45° downward gaze, there was no significant difference in cervical angle between the 0–5-min and 5–10-min time periods. However, the angle in the sagittal plane increased with time, while the frontal and transverse plane angles decreased. With the 90° forward gaze, there was no significant difference in cervical angle between the 0–5-min and 5–10-min time periods. However, the frontal plane angle increased as time elapsed, while the sagittal and transverse plane angles increased between 0 and 5 min and decreased between 5 and 10 min. [Conclusion] Our results suggest that prolonged cross-legged sitting could produce malalignment of the cervical spine in three planes of motion.
  • Jong Dae Lee, Da Hyun Koh, Kyoung Kim
    Journal of Physical Therapy Science
    2015年 27 巻 1 号 285-287
    発行日: 2015年
    公開日: 2015/01/09
    ジャーナル フリー
    [Purpose] This study aimed to examine changes in lower extremity kinematics in the sagittal plane during downward squatting by subjects with pronated feet. [Subjects and Methods] This study selected 10 subjects each with normal and pronated feet using a navicular drop test. The subjects performed downward squatting, in which the knee joints flex 90° in a standing position. We recorded the angles of the hip, knee, and ankle joint in the sagittal plane through motion analysis. For the analysis, the squatting phase was divided into phase 1 (initial squat), phase 2 (middle squat), and phase 3 (terminal squat) according to the timing of downward squatting. [Results] In the pronated foot group comparison with the normal group, the hip joint flexion angle decreased significantly in phases 2 and 3. The dorsiflexion angle of the ankle joint increased significantly in phase 3. The flexion angle of the knee joint did not differ between groups in any of the phases. [Conclusion] The pronated foot group utilized a different squat movement strategy from that of the normal foot group in the sagittal plane.
  • Souichiro Sekiya, Takeshi Tsutsumi, Hirofumi Osada, Kenichi Harumi, Tomoe Miyazawa, Sadayuki Sato
    Japanese Heart Journal
    1984年 25 巻 5 号 842
    発行日: 1984年
    公開日: 2008/12/09
    ジャーナル フリー
  • Kato Tsuyuki, Sako Shunji
    理学療法学Supplement
    2015年 2014 巻 P3-0790
    発行日: 2015年
    公開日: 2015/04/30
    会議録・要旨集 フリー
    【Purpose】We investigated the relationship between the maximum hip flexion, the pelvis, and the lumbar vertebrae on the sagittal plane.【Methods】The study enrolled 30 healthy volunteers:13 females(18.5±2.1 age, Group-1:G-1), 17 females(45.0±3.1 age:G-2). The Hip Flexion Angle(HFA)were measured in two pelvic positions. (1)the Regular Position:RP(specified JOA and Rehabilitation Medical Association), and(2)the Limited Position(LP)of the posterior pelvic tilt by placing a 500ml PET bottle filled with water under the subject's low back. The HFA of RP and LP in individual joints was assessed by Paired t-test(p<0.05). The HFA of RP and LP in two groups was compared in the coefficient of correlation. The HFA of RP, LP and(RP-LP)in two groups was assessed by Student's t-test in two groups(p<0.05). All data were handled using R(3.1.1)software. We measured a 44 year-old female about the Lumbo Sacral Angle(LSA), the Lumbo Lordotic Angle(LLA)and the Sacral Slope Angle(SSA)by X-ray in 4 positions.【Results】The HFA in G-1 and 2 decreased in LP by 17.9 degrees and 19.5 degrees on average, compared with RP(p<0.01). The coefficient of correlation of G-1 and 2 was 0.91 and 0.52, respectively. There was no significant difference of HFA of RP, LP and(RP-LP)in two groups. In the difference between the X-rays of the RP and LP, the SSA was 20.6°and the LLA was 13.6°. The LSA was nearly equal.【Discussion】The HFA and the movement of the pelvic-lumbar vertebrae in the maximum hip flexion between the young females and in their 40's show no significant differences.
  • 今井 秋介, 山崎 大河, 山脇 恭二, 忻 欣, 泉 晋作
    会議録・要旨集 認証あり

    We examined whether a swing on gymnastic rings can be performed by control for achieving an inter-joint coordination. The swing in the sagittal plane was modeled by a three-segment model with two degrees of underactuation. The coordination was modeled by a linear relation among joint angles as a virtual holonomic constraint. The controller was constructed by the partial feedback linearization. The simulation results showed that the model had solutions similar to steady swings in gymnastics, and the swing amplitude can be increased by switching two inter-joint coordination.

  • Takanori Suzuki, Yasuo Nakazawa, Kohei Kurokawa, Keigo Okamura, Isao Kurosawa, Hidetoshi Yamanaka
    北関東医学
    2000年 50 巻 2 号 123-126
    発行日: 2000/03/01
    公開日: 2009/10/15
    ジャーナル フリー
    The urinary incontinence in radical prostatectomy partly arises from the damage to the external urethral sphincter during the operation. The present study demonstrated that, as a means of preventing the damage to the sphincter, the prostate shape and the external urethral sphincter could be preoperatively identified using magnetic resonance (MR) imaging. Five necropsy specimens were examined. MR images were obtained in the sagittal plane, and the specimens were then cut and macroscopically examined. Two prostate shapes, croissant and doughnut, were easily identified by both methods. In the four croissant-shaped prostates, the external urethral sphincter was very well developed at the anterior surface of the prostate gland, and the membranous urethra was long. On the other hand, in the doughnut-shaped prostate it developed anteriorly and posteriorly, and the membranous urethra was short. Knowledge as to the prostate shape and the urethral sphincter acquired by MR imaging can help the surgeon to preserve the external urethral sphincter during prostatectomy
  • Yahiko Takeuchi
    Journal of Physical Therapy Science
    2017年 29 巻 1 号 112-114
    発行日: 2017年
    公開日: 2017/01/31
    ジャーナル フリー

    [Purpose] The purpose of this study was to clarify the correlation between the range of spinal mobility on the sagittal plane and the dynamic balance ability of elderly people living in communities. [Subjects and Methods] The persons studied were 31 healthy elderly people living in the community (16 females and 15 males). The range of mobility of the participants’ spines in the sagittal plane was measured by using a spinal mouse®. Balance ability was evaluated by using Functional reach (FR), Timed up and go (TUG), and Maximum walking speed (MWS). [Results] A significant positive correlation between the flexion range of the lumbar vertebrae and the FR distance was identified, and a significant negative correlation between the extension range of the thoracic vertebrae and the time required for TUG was also identified. In addition, a significant positive correlation between the extension range of the entire spine and MWS, was identified. [Conclusion] The result of this study have clarified that mobility of the spine in the sagittal plane is associated with dynamic balance ability, which is related to falling.

  • KwangYong Park, KyoChul Seo
    Journal of Physical Therapy Science
    2015年 27 巻 4 号 1211-1213
    発行日: 2015年
    公開日: 2015/04/30
    ジャーナル フリー
    [Purpose] The purpose of this study was to examine the effects of a functional foot orthosis on the knee angle in the sagittal plane of college students in their 20s who had flatfoot. [Subjects and Methods] The subjects of this study were 20 college students diagnosed as having flatfoot. The variations of their knee angle (Q-angle) in the sagittal plane during the stance phase were measured using the VICON Motion System (Vicon, Hansung, Korea) before and while wearing a foot orthosis. The experimental data were analyzed using SPSS 12.0 for Windows. [Results] The Q-angle in the test group during the stance phase showed statistically significant declines on the right and left sides while wearing the foot orthosis during the gait-phases of loading response and midstance. During initial contact, terminal stance, and preswing, the Q-angle also decreased on the right and left sides after wearing the foot orthosis, but the changes were not statistically significant. [Conclusion] The college students with flatfoot exhibited declines in the Q-angle in the sagittal plane while wearing a foot orthosis. In this regard, the application of active gait training using orthotic shoes for long hours is likely to help individuals with flatfoot to achieve normal gait.
  • 小笠原 健一, 川路 茂保
    システム制御情報学会論文誌
    1995年 8 巻 10 号 562-573
    発行日: 1995/10/15
    公開日: 2011/10/13
    ジャーナル フリー
    It is pointed out that the locomotion rhythm plays an important role in generation of the periodic motion such as walking successfully. This paper is concerned with a control strategy for generating the regular locomotion rhythm. The method has two features : one is that the locomotion rhythm is determined by specifying the reference trajectory and some time data on it, and then the trajectory following servo realizes the walking motion according to the determined rhythm. The other is that the kicking motion is utilized for generating the regular rhythm so that the kinetic energy loss caused by the collision between the swing leg and a floor is compensated. From the experimental results of our new biped locomotion robot SR-4, it is confirmed that the proposed method is useful for generating the regular locomotion rhythm.
  • 徳永 由太, 江原 義弘, 田中 悠也, 久保 雅義
    理学療法科学
    2011年 26 巻 4 号 499-505
    発行日: 2011年
    公開日: 2011/09/22
    ジャーナル フリー
    〔目的〕本研究は矢状面膝関節モデルを用いて,着地動作時に膝前十字靭帯(ACL)に生じる張力負荷を推定することを目的とした.〔方法〕健常成人男性6名を対象とし,60 cmの高さからの着地動作を行った.計測には3次元動作解析装置,床反力計,表面筋電計を使用した.筋電図情報を取り入れた最適化手法により推定された筋張力を膝関節モデルに入力することでACL張力負荷の算出を行った.〔結果〕ACLにかかる張力負荷は最大で約330 Nであった.〔結語〕ACLの破断荷重は約2000 Nであることが報告されている.本研究で推定された結果はこの値に比べて低く,矢状面の力学的関与だけではACL損傷は引き起こされない可能性が示唆された.
  • Yutaka Ishitoya, Takashi Sakurai, Ichiro Aita, Kazukimi Sasaki
    The Tohoku Journal of Experimental Medicine
    1966年 88 巻 1 号 1-8
    発行日: 1966年
    公開日: 2010/11/17
    ジャーナル フリー
    The authors have constructed an apparatus with three vibrators and a halfmirror which indicates a spatial vector as a light spot in three-dimensional space. A new type of spatial vectorcardiograph was produced by attaching a vectorcardiograph to this apparatus. The lead system of Frank and a new coordinate system of the authors were employed, and the observation of the cardiac vector was performed. The cardiac vector was visualized as a locus of the light spot which forms three-dimensional loops in space. The observation and the analysis of the heart vector with determination of the quadrants of the loops were performed in normal individuals and in some clinical cases. It was possible to record the spatial vectorcardiogram by the usual photography or stereophotography and to perform objective analysis. This method may be of some value for clinical and educational purposes.
  • 兵頭 和幸, 三上 貞芳, 鈴木 昭二
    日本機械学会論文集 C編
    2008年 74 巻 742 号 1514-1521
    発行日: 2008/06/25
    公開日: 2011/03/04
    ジャーナル フリー
    This paper proposes a foot shape design to enhance stability of passive dynamic walk, by constraining fall down phenomenon in both sagittal and lateral planes. The falling down effects in passive dynamic walk is divided into those in lateral plane and sagittal plane. In lateral plane, limiting swing from side to side is effective to avoid falling down in this plane. This is realized by preparing limiter shape in lateral direction, such as two separate sub-foots placed apart in parallel. In sagittal plane, stability of walk is kept by constraining fall down phenomenon toward moving direction. A constrainer attached in front of a foot at the support leg will avoid this overhang. A prototype of a foot that realizes those two constraining effects into a 3D shape design is proposed. We show that the constraining effect by the proposed foot shape is effective for a walk comparing to an arctic foot shape.
  • Tatsuro Sasaji, Kiyotsugu Shinagawa, Shigetsune Matsuya
    The Tohoku Journal of Experimental Medicine
    2013年 231 巻 2 号 139-144
    発行日: 2013年
    公開日: 2013/10/17
    ジャーナル フリー HTML
    Spontaneous thoracic spinal subarachnoid hemorrhage is rare, and thus no useful radiological findings for preoperative diagnosis have been reported. We experienced a patient with spontaneous thoracic spinal subarachnoid hemorrhage. A 37-year-old female presented with sudden-onset paraplegia and numbness in the trunk and bilateral lower extremities. The patient had no past history of trauma, lumbar puncture and bleeding disorder. T2-weighted sagittal magnetic resonance imaging (MRI) of the cervical and thoracic spines showed a mass occupied in the ventral space of spinal cord that was dorsally shifted. The mass extended from C6 to Th6 levels, with its largest size at Th2 level. Thoracic spine T2-weighted sagittal and axial MRI showed that the mass compressed spinal cord and was located in the intradural space. There was no spinal cord tumor and no spinal vascular malformation around the mass. Brain computed tomography (CT) showed a high-density area in the subarachnoid space, indicating the possibility of subarachnoid hemorrhage. Brain MRI showed no ruptured aneurysm. The patient was diagnosed as a spontaneous thoracic spinal subarachnoid hemorrhage and emergency surgery was selected. We performed right-side hemilaminectomy at Th1-Th6 and opened dura mater and arachnoid membrane. Hematoma was found in the ventral space of spinal cord and was removed. One year after surgery, numbness in the trunk and bilateral lower extremities had disappeared but paraplegia remained unchanged. Thoracic spine T2-weighted MRI confirmed no hematoma but showed a newly formed intradural cyst. Preoperative combination of brain CT and thoracic MRI is useful to diagnose thoracic spinal subarachnoid hemorrhage.
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