Analysing the movements of the human upper limb. Since the evolution of ancestral brachiation up to the present day, the upper limb has stood out as a reliable representative of the human species. Progressing and perfecting in more delicate and precise movements, the upper limbs in contrast to the lower limbs (greater stability with less movement), the upper limbs provide a harmony of little fit with a greater range of movement directed mainly towards the specialised human hand.

Analyse der Bewegungen der oberen Gliedmaßen des Menschen. Seit der Entwicklung der Brachialbewegung der Vorfahren bis heute ist die obere Extremität ein zuverlässiger Repräsentant der menschlichen Spezies. Die oberen Gliedmaßen, die sich in feineren und präziseren Bewegungen weiterentwickeln und vervollkommnen, bieten im Gegensatz zu den unteren Gliedmaßen (größere Stabilität bei geringerer Bewegung) eine Harmonie von geringer Passform mit einem größeren Bewegungsumfang, der sich hauptsächlich auf die spezialisierte menschliche Hand richtet.

Analyse des mouvements du membre supérieur humain. Progressant et se perfectionnant dans des mouvements plus délicats et plus précis, les membres supérieurs, contrairement aux membres inférieurs (plus de stabilité avec moins de mouvement), offrent une harmonie de peu d'ajustement avec une plus grande amplitude de mouvement orientée principalement vers la main humaine spécialisée.

During academic training, there is a trajectory based on the search for the foundations to maintain learning. Allied to this scenario, the learner is tracing their trajectory in search of the autonomy necessary for their subsequent performance. This search reflects a constant transition between statuses where the study of object often overlaps with that of subject and vice versa. This exercise in autonomy is necessary in order to establish a relationship from active to active, which will necessarily be fruitful since active participation is the result of the trajectory.

Autonomy in training is necessary so that, instead of passing on, the apprentice can learn to create. For this to happen, an exercise in autonomy is essential, and all training implies a trajectory in which we lose and gain, but the most important thing is that we don't forget that we learn on corpses, but we don't treat corpses. In order to establish a subject-to-subject relationship, both the object of study and the object of work must prevail in an autonomous production bias.