METHOD FOR DETERMINING INFORMATION REPRESENTATIVE OF A USER'S INTERACTION WITH A SURFACE OF PHYSICAL EXERCISE OF A TREADMILL AND TREADMILL THEREOF

A method for determining information representative of a user's interaction with a surface of physical exercise (10) of a treadmill. The treadmill comprises: a base extending along a respective direction of longitudinal development (D), the base comprising a first rotating element and a second rotating element adapted to rotate about respective axes of rotation transverse to the direction of longitudinal development (D) of the base of the treadmill, the base comprising a surface of physical exercise (10) operatively connected to the first rotating element and to the second rotating element, the surface of physical exercise (10) having a respective portion (PZ) of the surface of physical exercise (10) facing a user during the user's interaction with the surface of physical exercise (10); a plurality (P-C) of load cells arranged below the surface of physical exercise (10) so as to detect data representative of local force vectors (F-11, F-12, F-21, F-22, F-31, F-32) due to the interaction of the user (U) with the portion (PZ) of the surface of physical exercise (10) along a direction orthogonal to the portion (PZ) of the surface of physical exercise (10), the plurality (P-C) of load cells comprising a first pair of load cells (C-1), a second pair of load cells (C-2) and a third pair of load cells (C-3) arranged in series along the direction of longitudinal development (D) of the base of the treadmill; a data processing unit operatively connected to the plurality (P-C) of load cells. The method, for each sampling time instants ti, with 1 < i < N, of a plurality of subsequent sampling time instants t1, t2, ..., tN, with positive integer N, comprises steps of: detecting, by each load cell of said plurality (P-C) of load cells, data representative of a respective local force vector value (F-11, F-12, F-21, F-22, F-31, F-32) along a direction orthogonal to a portion (PZ) of the surface of physical exercise (10) at such a load cell due to the user's interaction with the surface of physical exercise (10); determining, by the data processing unit, information representative of a resulting force vector (F-R) based on the data representative of the local force vectors detected by the plurality (P-C) of load cells.