1. A method for determining the values of the stretching of a body portion, comprising the steps of receiving data (100) of stretching from a stretching sensor (201, 302) directly connected to the indicated portion of the body, the stretching sensor being a capacitive or resistive sensor that changes its capacitance or its resistance depending on elongation, while the sensitive device (301) is configured to process the tensile data from the tensile sensor (201, 302) to determine the stretching value of the body portion, while The apparatus comprises a processing device configured to implement the method by analyzing the tensile data while the indicated body portion is in motion, analyzing the tensile data to identify parts (104) of the cyclic tensile data (100) that correspond to the motions of the specified body portion, tensile data identified so that these parts contain the first and second points (101, 102) of the tensile data associated with the corresponding first and second phases the movement of the indicated portion of the body, - analyzing the tensile cyclic data (100) to identify the first and second tensile values (101, 102) by determining the minimum and maximum sensor values (121, 122), - then analyzing the tensile cyclic data (100) to identify the specified parts (104), ensuring that these parts (104) contain parts of the entire period (106) of the cyclic harmonic signal containing the first and second points (101, 102) of the tensile data associated with the corresponding first and1. Способ определения значений растяжения участка тела, включающий этапы,- получения данных (100) растяжения от датчика (201, 302) растяжения, непосредственно соединенного с указанным участком тела, причемдатчик растяжения представляет собой емкостной или резистивный датчик, который изменяет свою емкость или свое сопротивление в зависимости от удлинения,- при этом чувствительное устройство (301) выполнено с возможностью обработки данных растяжения от датчика (201, 302) раст
