Before starting the test, the subject performed the task once with the guidance of the physiotherapist, reaching forward through a shoulder anteposition
movement, starting from the reference position, and then reaching back.
To evaluate variations in plantar center of pressure and the subsequent postural balance in the presence of induced head anteposition, a pre-experimental cross-sectional study was conducted in 30 male subjects aged 20 to 25 years, with no head anteposition, measuring 1.65 m to 1.85 m in height.
The orthostatic position of the head was determined by matching the tragus and the acromion with a plumb line, accepting a head anteposition with a limit established by the coincidence between the posterior edge of the pinna and the acromion.
Each selected subject was asked to step barefoot to the model 9286BA Kistler[R] force plate (Figure 1) in order to collect the data corresponding to their plantar center of pressure and their variations by inducing a gradual anteposition of the head.
For the second measurement, a second plumb line was located 1 cm ahead of the previous plumb line, asking the subject to return to IP in relation to plumb line 0 and from that position produce a head anteposition until the point marked on the tragus coincided with the plumb line to 1 cm.
To contrast the null hypothesis "there is no significant difference in COP displacement of healthy subjects in orthostatic position with various degrees of head anteposition", the Wilcoxon test was used for the non-parametric contrast of two related samples.
Quoi qu'il en soit, il ressort que l'association anteposition
et accentuation est un marquage adapte a la transmission d'une information de type contrastif.
Before turning to these extralinguistic properties, I analyze the correlation between the anteposition or postposition of [NP.sub.2] and the dynamicity of the second constituent of the InfC, namely the infinitive itself.
Before concluding this article, I would like to stress that the observed correlations between on the one hand visual perception, the nonsentential nature of the InfC and the postposition of [NP.sub.2] and, on the other hand, between auditory perception, the sentential nature of the InfC and the anteposition of [NP.sub.2] are prototypical correlations which certainly allow exceptions.
It is the general anteposition in French that causes this rather high number of anteposed nondynamic N[P.sub.2]s.
However, the high number of postverbal N[P.sub.2]s with unergative (66.8%) infinitives in Spanish (Table 9) can be explained by the general postposition tendency of this language; the small difference between postposition and anteposition of N[P.sub.2]s accompanied by unaccusative infinitives in French (Table 10) can be explained by the general anteposition of that language.
Keenan (1976) proposes a series of formal indicators of the subject function: verbal agreement, nominative case markings and anteposition.