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Titolo:
Static and dynamic postural control in long-term microgravity: evidence ofa dual adaptation
Autore:
Baroni, G; Pedrocchi, A; Ferrigno, G; Massion, J; Pedotti, A;
Indirizzi:
Politecn Milan, Ctr Bioingn, Fdn Don Carlo Gnocchi, Ist Ricovero & Cura Carattere Sci, I-20148 Milan, Italy Politecn Milan Milan Italy I-20148 a Carattere Sci, I-20148 Milan, Italy Politecn Milan, Dipartimento Bioingn, I-20133 Milan, Italy Politecn MilanMilan Italy I-20133 timento Bioingn, I-20133 Milan, Italy CNRS, Lab Neurobiol & Movements, F-13402 Marseille, France CNRS Marseille France F-13402 iol & Movements, F-13402 Marseille, France
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 1, volume: 90, anno: 2001,
pagine: 205 - 215
SICI:
8750-7587(200101)90:1<205:SADPCI>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
AXIAL SYNERGIES; MOVEMENT; WEIGHTLESSNESS; DISPLACEMENT; SPACE; MODEL; TASK;
Keywords:
motor control; posture; sensorimotor adaptation; motion analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Baroni, G Politecn Milan, Ctr Bioingn, Fdn Don Carlo Gnocchi, Ist Ricovero& Cura Carattere Sci, Via Capecelatro 66, I-20148 Milan, Italy Politecn Milan Via Capecelatro 66 Milan Italy I-20148 an, Italy
Citazione:
G. Baroni et al., "Static and dynamic postural control in long-term microgravity: evidence ofa dual adaptation", J APP PHYSL, 90(1), 2001, pp. 205-215

Abstract

The adaptation of dynamic movement-posture coordination during forward trunk bending was investigated in long-term weightlessness. Three-dimensional movement analysis was carried out in two astronauts during a 4-mo microgravity exposure. The principal component analysis was applied to joint-angle kinematics for the assessment of angular synergies. The anteroposterior center of mass (CM) displacement accompanying trunk flexion was also quantified. The results reveal that subjects kept typically terrestrial strategies ofmovement-posture coordination. The temporary disruption of joint-angular synergies observed at subjects' first in-flight session was promptly recovered when repetitive sessions in flight were analyzed. The CM anteroposteriorshift was consistently <3-4 cm, suggesting that subjects could dynamicallycontrol the CM position throughout the whole flight. This is in contrast to the observed profound microgravity-induced disruption of the quasi-staticbody orientation and initial CM positioning. Although this study was basedon only two subjects, evidence is provided that static and dynamic postural control might be under two separate mechanisms, adapting with their specific time course to the constraints of microgravity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/02/20 alle ore 06:48:45