競速直排輪即時回饋系統的建構與檢測

The real time feedback system contrast and test for roller skate

即時回饋系統是目前我國目前運動科學輔助訓練的趨勢之一。本研究目的在於透過LabVIEW儀控程式建構競速直排輪即時回饋系統並檢測其應用性。即時回饋系統建構的主要儀器為LabVIEW儀控系統，紅外線光閘、加速規、無線NI類比數位轉換盒及NI類比數位轉換盒。實驗場地為競速直排輪國際標準比賽場地總長200公尺。以高中優秀競速直排輪溜冰男選手1名為實驗受試者，年齡18歲、身高170公分、體重65公斤、進行300公尺衝刺測驗兩次，以最好的成績作為採樣依據。收集的參數包括有:帄均步幅、帄均步頻、瞬時速度。研究結果如下：(一)受測者的速度曲線變化呈穩定的趨勢上升，但受測者在減速期時速度明顯大幅降低。結論:本研究初步建構之競速直排輪選手訓練參數即時回饋系統提供上述參數能即時反映出選手的技術與體能資訊，具有不錯的應用性。未來具有做為實際訓練輔助工具之重要潛力。

This study was utilized the Platform of Labview Object-Oriented Programming to construct an real-time training feedback system for examining the application in practical situation. RTFS is one of the trends ，which is applied to training in sport science. The main device of RTFS contained Infrared shutter， accelerometer， Ni WIFI Data Acquisition and Ni Data Acquisition. The experimental field is a 200 meter skating rink which is a standard for international skate racing competition. The participant is an eighteen-year-old， 175cm， 65kg， senior high student， who is an excellent skate athlete. He was asked to take a 300meter-sprint twice and used the best result to make experimental sample eventually. The collected parameter include， average step long， average step frequency and instantaneous speed. The results of experiment are listed as followed: 1. By the analysis of participant’s speed we can know thevariation of the speed curve ascended stably. However， when the athlete got into decelerating period， the speed slow down enormously. 2.The experiment showed RTFS can reflect the skill and strength of athlete instantly. RTFS has a great application， it may become a useful assistant tool for practical training in the near future.