The invention relates to safety belt arrangements with a safety belt, a belt buckle and a belt tongue at least one sensor region arranged at the safety belt, at the belt buckle and/or at the belt tongue, which includes at least one first sensor and at least one second sensor. At least one evaluation unit is provided for determining information with respect to the cardiac and/or respiratory activity of the user of the safety belt by using the values determined by the first and second sensors of the sensor region.
