footscan 足底压力分布测试系统 RSscan Beijing Lab.
RSscan INTERNATIONAL 1.Foot movement 足的运动
RSscan INTERNATIONAL Initial contact Forefoot contact Heel lift Toe-off
RSscan INTERNATIONAL W A L K I N G Initial contact 0% Heel strike +/- 15% Forefoot contact +/- 15% Mid stance phase +/- 35% Heel lift +/- 50% Propulsion +/- 50% Toe-off 100%
RSscan INTERNATIONAL HEELSTRIKE Initial contact Start midstance Start foot flat
RSscan INTERNATIONAL MIDSTANCE Start midstance Start foot flat Heel lift
RSscan INTERNATIONAL PROPULSION PHASE Heel lift Toe-off
Skeleton movement based on pressures
Skeleton movement based on pressures
Skeleton movement based on pressures
Skeleton movement based on pressures
Skeleton movement based on pressures
Skeleton movement based on pressures
Skeleton movement based on pressures
Skeleton movement based on pressures
foot balance 足内外翻 Right foot 右脚 neutral pronation supination 正常外翻内翻
What is foot balance- pronation/supination Pronation( 旋前 / 外翻 ) = 跟外翻 + 背屈 + 外展 Supination( 旋后 / 内翻 ) = 跟内翻 + 跖屈 + 内收
Supination 内翻
Pronation 外翻
RSscan International SUBTALAR JOINT Midfoot twist Supination Pronation
RSscan International SUBTALAR JOINT supination and pronation describe motions in three dimensions SUPINATION/ INVERSION/ VARUS PRONATION/ EVERSION/ VALGUS
Normal Almost 正常的步态
RSscan INTERNATIONAL The average from the ideal curve from 30 Long Distance runners: 对 30 名长跑爱好者研究得出理想的平均曲线 -They have a normal running patron based on a normal shoe abration. 在运动鞋正常形变的基础上得出他们正常的曲线 -No injuries the last 3 years. 三年内没有受伤史 - min training average 100 km/week. 每周最少跑 100 公里
RSscan INTERNATIONAL (M1+M2+HM)-(M3+M4+M5+HL)
RSscan INTERNATIONAL 2. RISC FACTOR FOR INJURIES 步态与损伤的评估
Biomechanical movement: Varus movement of the rear foot 足后跟的内翻运动
Biomechanical movement Valgus movement of the rear foot 足后跟的外翻运动 left foot
RSscan INTERNATIONAL Rearfoot pronation T.Achilles Inside swelling due to friction 跟腱过度摩擦可能引起水肿 Fast and high pronation in rearfoot
RSscan INTERNATIONAL Fast and high pronation 快速的过度外翻
Achilles tendonitis 跟腱炎 Hyperpronation of the mid foot 足中部的过度外翻 Extension of the knee 膝的过伸 increased rotation forces 增加了旋转力 this torsion causes the tendonitis 这种力矩导致了跟腱炎
RSscan INTERNATIONAL M.Tibialis Posterior 胫骨后肌
RSscan INTERNATIONAL Navicular movement in midstance RISK KNEE 在足支撑阶段足舟骨移动会增加膝关节损伤几率
足底筋膜炎 Twist in the midstance (to many torsion)
Plantar fasciitis (bone spur syndrome) 骨刺 Positive bone scan of calcaneal stress fracture Twist in the midstance (to many torsion)
Pronation of forefoot 足前部过度外翻 * overuse of M.Tibialis Anterior 小腿前部肌肉疲劳 *fracture of shin 胫骨骨折 ( 女性多见 )
Overloading Medial forefoot and M1>M2 no stiff midfoot
RSscan INTERNATIONAL 30 subjects 15 trials 450 0.8 0.9 相关系数
RSscan INTERNATIONAL Shin splints( 胫骨扭伤 ) M.Tibialis Anterior ( 胫骨前肌 )
Supination of rearfoot 足后跟过度内翻 * Ankle injury 踝关节扭伤
RSscan INTERNATIONAL Movement in the midfoot stance 足中部的过度内外 翻引发膝关节的损伤
Knee problems pronation of the mid foot 足中部过度外翻 膝关节内侧损伤 Supination of the mid foot 足中部过度内翻 膝关节外侧损伤
Only problem with combination pronation foot Hallux valgus 拇外翻 Increased stress on meta 1
K1 Fallen transversal arch( 横弓塌陷 ) Intermetatarsal neuroma( 跖骨间神经瘤 )
幻灯片 44 K1 arche transversal descendu et la pronation dans la phase de propulsion causent d'irritation neural Katrien, 2002-4-24
Fallen transversal arch( 横弓塌陷 ) Stress fracture( 应力性骨折 )
RSscan INTERNATIONAL First Ray
RSscan INTERNATIONAL Underloading M1 no stiff foot
overloading M1 第一趾骨落地速度过快 Hallux (stiff Hallux/ 大拇指僵硬 )
RSscan INTERNATIONAL Supination rearfoot and pronation Medial forefoot Iliotibial Band Syndrome 髂胫束综合症
RSscan INTERNATIONAL Iliotibial Band Syndrome 髂胫束综合症 Force +- 1X Body weight Forefoot pronation Forefoot neutral position Time 0ms 100 ms 200ms 240 ms Supination rearfoot and pronation Medial forefoot ( 足跟内翻 / 前足外翻 )
RSscan INTERNATIONAL Supination rearfoot and pronation Medial forefoot
RSscan INTERNATIONAL Hips & Back 臀 背部症状 Misbalance ; Left & Right foot movement Left & Right foot Ab/Adduction 左右足的步态不均衡 No symmetric in the Left Right balance body
The diabetic foot 糖尿病足 The pressure: Pmax - Impulse P max Average Impulse (N s/cm2)
Diabetic Foot 糖尿病足 Risk factors 风险因素 Previous ulcer/amputation 先前的溃疡 / 截肢 -Absent Achilles tendon reflex - 跟腱损伤与缺失 Lack of Social contact 缺少社会交际 -Callus - 足底胼胝 Lack of Education 教育程度不高 -Foot deformities - 足部畸形 Impaired Protective sensation-inappropriate Footwear 自我保护意识较差 - 足部穿着不当 Impaired Vibration perception-absent Pedal pulses (International Consensus on the Diabetic Foot, 1999)
The Diabetic foot The unroll of the diabetic foot Insufficient neurological system 神经系统功能下降 + Limited Joint Movement due to reduced production of synovial fluid in the joints 关节滑液减少导致运动受限 足底压强增大 Increased plantar pressures
RSscan INTERNATIONAL Impules 着地冲量
Example 例 1: Athlete with out different in legs But small tension in right Armstring 腿长一致, 但右侧小腿后群肌肉较紧张
Patient with stiff right hip 右臀僵直
RSscan INTERNATIONAL 3. Neuromuscular 神经 / 肌肉系统病症的评价与矫正 hemiplegia 偏瘫 cerebral palsy 脑瘫 parkinson`s disease 帕金森病 amputees 假肢 myopathies 肌肉病症
spastic diparesis 双侧肢体痉挛性麻痹
Hemiplegia 偏瘫
without splint with splint
prostethics ( 假肢 )
CP Children 脑瘫
Footscan analysis at the Antwerp Gaitlab DVC St. Jozef
Study DuPont
Study DuPont
Study DuPont
Example 例 : 6 岁, 痉挛性脑瘫, 一直坚持做康复训练 ; 走路呈剪刀步, 后跟着地面积小, 难下蹲
Barefoot walk 光脚走路
shod walk :corrected shoes + D3D(without orthotics) 穿鞋走路 : 矫正鞋 + D3D 鞋垫 ( 无矫正垫片 )
shod walk :corrected shoes + D3D(right foot with DF- ) 穿鞋走路 : 矫正鞋 + D3D 鞋垫 ( 右足加抗内翻垫片 )
RSscan INTERNATIONAL 4. D3D orthosis 个性化矫正方案
footscan Dynamic 3 Dimensional orthosis F Basic inlay F F+b N N+b
FN ( 正常足弓 )
F ( 扁平足 )
High arched foot Calcaneo-cavus cavus Plantaris-cavus N ( 高足弓 )
RSscan INTERNATIONAL 走路测试 / 跑步测试 动态压力分布测试 The reason to use plate to calculate balance, UGent, Bristol, Brussel, Liverpool, Exetor, Aalberg more info from RSscan than kinematics
RSscan INTERNATIONAL Basic Footskeleton ( 足分区 ) Old pressure settings 旧的划分方式 New autom. pressure settings 新的自动划分方式
研究方法 : 将足部分为十个区域 : 大脚趾 T1 其余四个脚趾 T2-5 第一跖骨 M1 第二跖骨 M2 第三跖骨 M3 第四跖骨 M4 第五跖骨 M5 足中部 MF 足后跟内侧 HM 足后跟外侧 HL 内外翻平衡理论 : F(M1+M2+HM)-F(M3+M4+M5+HL)
RSscan INTERNATIONAL (M1+M2+HM)-(M3+M4+M5+HL)
RSscan INTERNATIONAL Results and analysis: 结果与分析 Pressure pattern and Timing and Zone forces 通过足底压力分布方式 受力时间 区域受力特点等因素计算 评价继而得出矫正的方案
双层 D3D 鞋垫 (UK1~13) 分扁平足和高弓足两种!F/N Termolast 糖尿病 / 舒适性 EVA 糖尿病 / 舒适性 EVA 舒适性 / 运动性体重 <70kg EVA 运动性体重 >70kg EVA 舒适性 / 薄式运动性体重 >70kg
薄式 D3D 鞋垫 ( 女码 35~40 UK3~7; 男码 41~46 UK8~11) 分扁平足和高弓足两种! F/N 硬塑料基底 一体式 D3D 鞋垫分扁平足 正常足弓和高弓足三种支撑!F/FN/N ( 女码 33~40 UK1~7; 男码 41~48 UK8~14) 低强度运动 / 舒适性体重 <70kg 高强度运动 / 体重 >70kg 舒适性 / 糖尿病足
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