- Comprises securing means for including motion sensors one (CM), at least, to be connected rigidly to the user the movement sensor (CM) equipped with the measuring axis of at least one (MF), the attitude determination of the user analyzing means are suitable for an (AN), - Analyzing means combining a probability density that is defined for each posture, a posture transition probabilities between consecutive - The two joint probability and density of the high-frequency component and the low frequency (AN) System for determining including, the attitude of the people.-少なくとも1個の測定軸を備えた少なくとも1個の運動センサ(CM)を含み、前記運動センサ(CM)をユーザーに堅牢に接続するための固定手段(MF)を備え、ユーザーの姿勢決定に適している解析手段(AN)であって、-各々の姿勢について定義されている確率密度である、前記低周波および高周波成分の同時確率密度、および-2個の連続する姿勢間の遷移確率を組み合わせた解析手段(AN)を含む、人の姿勢を決定するシステム。