JP4332669B2 - 関節中心計測装置 - Google Patents
関節中心計測装置 Download PDFInfo
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- JP4332669B2 JP4332669B2 JP2004055672A JP2004055672A JP4332669B2 JP 4332669 B2 JP4332669 B2 JP 4332669B2 JP 2004055672 A JP2004055672 A JP 2004055672A JP 2004055672 A JP2004055672 A JP 2004055672A JP 4332669 B2 JP4332669 B2 JP 4332669B2
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- joint center
- joint
- measuring
- body segment
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- 230000033001 locomotion Effects 0.000 claims description 37
- 238000005259 measurement Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 13
- 210000000323 shoulder joint Anatomy 0.000 description 9
- 210000002023 somite Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 210000004095 humeral head Anatomy 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000012417 linear regression Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002559 palpation Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
生物のある体節が時刻0から時刻tまで関節中心推定運動をするとき、空間座標系において関節中心は大きく動かないと仮定する。このとき、体節に取り付けた3つの標点から関節中心までのそれぞれの距離は、時刻tと時刻t’(t≠t’)においてほぼ一致するはずである。よって次の(1)式が成立する。
前記で推定された関節中心を実際の運動計測に対応させるためには、各標点と関節中心との関係を求める必要がある。そこで、例えば光学的方法により運動計測を行う際には、体節に取り付けた標点セット内の3つ以上の標点から体節座標系を定め、体節座標系から見た関節中心の推定を行った。まず、任意姿勢を体節座標系の基準姿勢とした。このときの空間座標系標点位置R ̄n (n==1,2,・・・,n)のうち、任意の3点を選ぶ。ここでは、n=1,2,3を選んだものとする。このとき、R ̄1 を原点とする3つの座標軸ベクトル群R ̄p を次式(5)のように3×3の行列で定義した。
同様に、関節中心推定運動時のR1tを原点とする座標系ベクトル軸Rp t を次式(6)で表した。
目的関数:
Claims (1)
- 骨格を有する生物の運動中の関節中心を計測する関節中心計測装置において、計測対象となる関節を近位に持つ体節の位置と姿勢の6自由度を計測するための、前記体節の身体表面に装着したジグの上に取り付けた標点セットと、該標点セットを取り付けた前記体節の位置と姿勢の計測空間内の6自由度を計測できる計測手段と、前記標点セットを取り付けた前記体節を、関節中心から標点までの距離を半径とする球面内の三次元的な回転運動をさせることにより、前記体節内の近位に存在する関節中心位置を正しく推定する推定手段及び、該推定手段により推定された関節中心位置を計測空間内の三次元座標に変換する変換手段を備えた電子計算処理手段とから構成されたことを特徴とする関節中心計測装置。
Priority Applications (1)
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JP2004055672A JP4332669B2 (ja) | 2004-03-01 | 2004-03-01 | 関節中心計測装置 |
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JP2004055672A JP4332669B2 (ja) | 2004-03-01 | 2004-03-01 | 関節中心計測装置 |
Publications (2)
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JP2005245476A JP2005245476A (ja) | 2005-09-15 |
JP4332669B2 true JP4332669B2 (ja) | 2009-09-16 |
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JP2004055672A Expired - Lifetime JP4332669B2 (ja) | 2004-03-01 | 2004-03-01 | 関節中心計測装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112545498A (zh) * | 2020-12-02 | 2021-03-26 | 中国标准化研究院 | 一种人体功能性关节旋转中心检测与定位分析方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5061281B2 (ja) * | 2007-08-20 | 2012-10-31 | 国立大学法人広島大学 | 膝関節回旋角度計測装置 |
JP5392671B2 (ja) * | 2008-12-02 | 2014-01-22 | 学校法人早稲田大学 | 歩行計測装置 |
JP2014117409A (ja) * | 2012-12-14 | 2014-06-30 | Kawasaki Heavy Ind Ltd | 身体関節位置の計測方法および装置 |
CN112535475B (zh) | 2020-11-24 | 2021-11-19 | 中国标准化研究院 | 基于刚性上臂模型的功能性肩关节旋转中心定位方法 |
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2004
- 2004-03-01 JP JP2004055672A patent/JP4332669B2/ja not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112545498A (zh) * | 2020-12-02 | 2021-03-26 | 中国标准化研究院 | 一种人体功能性关节旋转中心检测与定位分析方法 |
WO2022116411A1 (zh) * | 2020-12-02 | 2022-06-09 | 中国标准化研究院 | 一种人体功能性关节旋转中心检测与定位分析方法 |
US11707209B2 (en) | 2020-12-02 | 2023-07-25 | China National Institute Of Standardization | Detecting method and positioning analysis method of human functional joint rotation center |
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JP2005245476A (ja) | 2005-09-15 |
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