踢擊姿勢評估方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

110124657

專利證號

I 777654

專利獲證名稱

踢擊姿勢評估方法

專利所屬機關 (申請機關)

弘光科技大學

獲證日期

2022/09/11

技術說明

研發理念: 隨著科技進步近年來運動治療也逐漸融合了創新科技，運動治療結合和虛擬實境新的模式可以提供院內門診或居家運動應用。本發明是結合虛擬實境與平衡運動訓練，特別是指一種踢擊姿勢評估方法。近年來隨著科技進步運動治療也逐漸融合了創新科技，運動結合和虛擬實境(virtual reality, VR)模擬真實比賽的情境讓參與者在虛擬世界中，透過選定關鍵的比賽情境反覆地模擬運動的操作，加速大腦心智的訓練，快速累積動作控制上的判斷能力。本發明的目的即在提供一種能客觀地提供踢擊姿勢評估方法。 學理基礎: 當前對姿勢評估的工具轉向可穿戴技術，應用穿戴感應器提供偵測功能性動作或特定任務姿勢的監測。依據動作標的將感應器置於適當的身體位置結合虛擬現實工具與傳感器相結合，可以測量活動中姿勢控制和軀幹加速度。跆拳道踢擊技巧需要高敏捷性、肌力、姿勢控制和決策能力。因此開發虛擬跆拳運動VR軟體結合商用VR遊戲軟硬體配備發展踢擊姿勢評估工具。相關文獻回顧顯示(1)研究所應用的VR內容主以有商用遊戲健身軟體應用於訓練，有關於姿勢與平衡控制結果測量則用一般臨床量表和體適能項目來檢測。(2)無直接測量踢擊運動中姿勢與平衡的控制的工具與方法。 主題內容: 應用VR設備追踪人體移動信號，開發準確的踢擊運動評估和訓練軟件。本發明可應用於（1）平衡控制訓練;（2）模擬真實比賽跆拳道踢球技巧訓練; (3)下肢動作訓練。應用實作3D及虛擬實境建構一套虛擬人體動作模式之動作軟體，結合虛擬實境用硬體包括頭盔及三個移動定位器(VIVE PRO EYE, HTC)定位於腰椎及足部，追蹤使用者的踢擊動作。使用Mono Develop來撰寫C#程式語言進行感測元件的設計與整合，透過感測器裝置進行連續動作擷取，並將擷取到的座標值傳回系統進行處理運算，VR系統將根據感測器所接收到的姿態值，以人體動畫重建方式呈現，並運算踢擊準確度、反應時間、速度與姿勢穩定度。 方法技巧: 撰寫VR程式及運算踢擊姿勢評估四個參數。準確度定義: 命中虛擬踢靶機率，愈高代表準確度高。反應時間定義: 虛擬標靶出現到踢中所需時間。速度定義: 挑選有命中的動作分析速度表現，位移除以[反應時間]。姿勢穩定度定義:個體三點(兩腳背與薦椎)座標相對關係，計算三點座標圍成的三角形面積，累計每局所有踢中標的三角面積，面積愈大表示姿勢穩定度愈好。所有三角面積累積變異性大代表姿勢穩定度大，但踢擊策略富變異性。Research and development concepts: Taekwondo competition requires high agility, muscle power, posture control and decision-making ability. Virtual reality (VR) Taekwondo kick testing is a novel type of computerized assessment that measures cognitive, executive, and motor performance as a training tool. Recent advances in rehabilitation training with sports combined with VR to simulate real activity, allowing participants to choose key competition situations in the virtual world. Theoretical basis: The present patent is a combination of virtual reality and balance exercise training especially refers to a kicking posture. The software simulates kicking movement scores announced by the 2019 World Taekwondo Federation to create a virtual reality program. This patent can be applied to (1) balance control training, (2) actual taekwondo kicking skills training simulations. Topic content: Optical equipment is used to track eye movements and movement signals to develop accurate motion evaluation and training software. The VR software simulates the kicking movement scores announced by the 2019 World Taekwondo Federation to create virtual reality. This patented system can be applied to (1) balance control training, (2) actual taekwondo kicking skills training simulations. Unity was used to implement 3D to construct a set of virtual human motion models. Mono Develop was used to write C# programming language combined VR helmet (VIVE PRO EYE, HTC) for related equipment operations. Method skills: An optical motion system was used to track movement signals, combined with 3 VIVE mobile locators (3.0) attached to the lumbar area and feet, with sensing components designed and integrated to capture the motions. The optical motion system was used to track motion signals, combined with 3 VIVE mobile locators (3.0) on the waist and feet, and integrated sensing elements designed to capture the motion trajectory. Export 3 mobile locators represented the body segment motion. The x and y coordinates were used to calculate the triangle area surrounded by three points and the advanced four posture control parameter calculations. The four posture control parameters’ accuracy, reaction time and posture stability definitions. Accuracy means the rate of hitting the virtual target. The action was selected with a hit to analyze the speed performance. Reaction Time: calculate the time from the virtual target appearing to the time the target was hit. The triangle area of the individual's three-point body stance enclosed by the three-point coordinates was calculated. The triangle areas for all kicks accumulated in each round were calculated to determine posture stability. The larger the body triangle area the better the posture stability. The large cumulative variability of all triangle areas represents the variation in kicking strategy.

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