PROBLEM TO BE SOLVED: To provide an underwater body motion detector which has a simple structure, can be manufactured at low cost, and can accurately measure a quantity of motions of various kinds of exercises in water regardless of the surrounding environment.SOLUTION: An underwater body motion detector 1 comprises: an electric contact part including a first terminal 4 and a second terminal 6 provided at positions spaced from each other a reception part for receiving a connection state of the electric contact part calculation means for calculating a signal received by the reception part a display part 10 for displaying a calculation result by the calculation means and an electric power source. The underwater body motion detector 1 has a mechanism in which the first terminal 4 and the second terminal 6 are electrically conducted when the electric contact part is submerged and electrically isolated when the electric contact part emerges from water. A number of body motions in the water can be measured by measuring the number of conduction and/or isolation.COPYRIGHT: (C)2015,JPO&INPIT【課題】構造が簡単で低コストで作製できると共に、周辺環境に依らず水中における各種運動の運動量を正確に計測できる水中体動検出装置の提供を提供する。【解決手段】互いに離れた位置に設けられた第一端子4及び第二端子6を含む電気接点部と、電気接点部の接続状態を受信する受信部と、受信部が受信した信号を演算する演算手段と、演算手段による演算結果を表示する表示部10と、電源と、を備え、電気接点部が水中に入れられることによって、第一端子4と第二端子6とが通電し、電気接点部が水中から出されることによって絶縁する機構を有し、通電及び/又は絶縁の回数を計測することにより、水中における体動回数を計測すること、を特徴とする水中体動検出装置1。【選択図】図1
