The invention provides a physical exercise condition detecting apparatus of a muscle force training machine which can measure a physical exercise condition data at a time of testing before starting a muscle force training and executing the muscle force training and can accumulate and indicate them together with various set data. In a muscle force training machine (4) having a training apparatus main body (2), and a training load applying apparatus (3), the machine is provided with a rotation detecting sensor (51) which can detect a rotating direction and an amount of rotation of a main shaft within the training load applying apparatus (3), and a data processing apparatus (52) which stores the rotating direction and the amount of rotation from the rotation detecting sensor (51) together with set data at least including a load amount, various body condition information of a training person and other data necessary for measuring, in a data base, and processes them to make indicative data in forms of display data, print data and the like on the basis of the various set data from the data base.本發明提供一種計測肌力訓練開始前之測試和肌力訓練時之運動狀況資料並可儲存/提示各種設定資料之肌力訓練機械之運動狀況檢測裝置。在具有訓練裝置本體2及訓練用負載賦予裝置3之肌力訓練機械4中,包括有:旋轉檢測感測器51,可檢測訓練用負載賦予裝置3內主軸之旋轉方向及旋轉量;及資料處理裝置52,將至少包括負載量和訓練者之各種身體狀況資訊及其他測定所必要資料之設定資料、和來自旋轉檢測感測器51之旋轉方向及旋轉量儲存於資料庫,且透過該資料庫根據各種設定資料,對顯示資料、列印資料等之提示資料進行製作處理。3...肌力訓練用負載賦予裝置5...計測裝置30...負載傳遞用繩索體31...主軸32...負載錘用滑輪33...負載傳遞用滑輪34...負載錘連接用繩索體35...負載錘51...旋轉檢測感測器51a...滑輪51b...編碼器51c...滑輪51d...皮帶52...資料處理裝置