Abstract: Strap arrangement comprising a first strap portion comprising a plurality of strap engaging structures, each strap engaging structure defines a size of an opening of the strap arrangement; a flexible second strap portion comprising at least one locking piece, the locking piece comprising at least one locking piece engaging structure for being aligned with at least one of the strap engaging structures; and at least one magnet adapted to force the locking piece engaging structure against at least one of the strap engaging structures by a magnetic force.

Abstract: Strap arrangement comprising a first strap portion comprising a plurality of strap engaging structures, each strap engaging structure defines a size of an opening of the strap arrangement; a flexible second strap portion comprising at least one locking piece, the locking piece comprising at least one locking piece engaging structure for being aligned with at least one of the strap engaging structures; and at least one magnet adapted to force the locking piece engaging structure against at least one of the strap engaging structures by a magnetic force.

Abstract: The invention relates to a method for fall warning. The method is performed by a wearable device and comprises measuring at least one physiological parameter of a user wearing the wearable device, predicting a fall of the user, by comparing the measured at least one physiological parameter with at least one threshold, warning the user when a fall is predicted, receiving an indication of a fall or of not a fall, and adjusting the threshold based on the received indication. A wearable device, a computer program, and a computer program product for fall warning are also presented.