Article

Do sensorial manipulations affect subjects differently depending on their postural abilities?

Department of Sports Science, Université de Pau et des Pays de l'Adour, Tarbes, France.
British journal of sports medicine (Impact Factor: 3.67). 08/2007; 41(7):435-8. DOI: 10.1136/bjsm.2006.032904
Source: PubMed

ABSTRACT To examine whether sensorial manipulation affects subjects differently according to their postural performance and the strategies used. The literature showed that the level of competition of soccer players influences their postural performance and strategy.
Eight high-level (HL) professional soccer players and nine regional-level (RL) soccer players were tested (1) in a reference condition and (2) in a manipulated sensorial condition (MAN). The MAN condition consisted of perturbing the proprioceptive and exteroceptive information. For each postural condition, balance was assessed by measuring the centre of foot pressure using a force platform during a test of bipedal standing posture.
The postural control was less perturbed in the HL than in the RL players in the two postural conditions. Moreover, the group-condition interaction showed that the postural control was less disturbed in the HL than in the RL players when the sensory information was manipulated.
The HL soccer players probably possessed a better internal model of verticality than the RL players. Subjects who had a better postural control level were less disturbed by sensorial manipulation than the others in postural regulation.

0 Bookmarks
 · 
82 Views
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The aim was to determine in what extent physical activity influences postural control when visual, vestibular, and/or proprioceptive systems are disrupted. Two groups of healthy older women: an active group (74.0 ± 3.8 years) who practiced physical activities and a sedentary group (74.7 ± 6.3 years) who did not, underwent 12 postural conditions consisted in altering information emanating from sensory systems by means of sensory manipulations (i.e., eyes closed, cervical collar, tendon vibration, electromyostimulation, galvanic vestibular stimulation, foam surface). The center of foot pressure velocity was recorded on a force platform. Results indicate that the sensory manipulations altered postural control. The sedentary group was more disturbed than the active group by the use of tendon vibration. There was no clear difference between the two groups in the other conditions. This study suggests that the practice of physical activities is beneficial as a means of limiting the effects of tendon vibration on postural control through a better use of the not manipulated sensory systems and/or a more efficient reweighting to proprioceptive information from regions unaffected by the tendon vibration.
    Scandinavian Journal of Medicine and Science in Sports 05/2014; · 3.21 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Hintergrund Die sagittale Ausrichtung der Wirbelsäule hängt mit zahlreichen Pathologien wie Bandscheibendegenerationen und Rückenschmerzen zusammen. Auswirkungen von spinalen Manipulationen („high velocity low amplitude“) auf die sagittale Ausrichtung der Wirbelsäule sind bislang nicht bekannt. Probanden und Methoden Im Rahmen dieser Pilotstudie wurden bei 44 Personen der Kyphosewinkel der Brustwirbelsäule und der Lordosewinkel der Lendenwirbelsäule videorasterstereographisch in habitueller und aufgerichteter Haltung vor und nach einer Manipulationsbehandlung der Brustwirbelsäule untersucht. Ergebnisse Im Bereich des Kyphosewinkels der Brustwirbelsäule konnte keine wesentliche Veränderung festgestellt werden. Der Lordosewinkel der Lendenwirbelsäule zeigte sowohl in habitueller Haltung (p = 0,001) als auch in aufgerichteter Haltung (p = 0,004) eine signifikante Vergrößerung. Schlussfolgerung Durch eine Manipulation der Brustwirbelsäule („high velocity low amplitude“) konnten Veränderungen im Bereich der Lendenwirbelsäule aufgezeigt werden. Dies zeigt die Interdependenz verschiedener Bereiche der Wirbelsäule, die in der manuellen Medizin eine entscheidende Rolle spielen. Ob die Veränderungen durch Beeinflussung auf segmentaler oder eher zentraler Ebene hervorgerufen wurden, kann im Rahmen dieser Studie nicht beantwortet werden.
    Manuelle Medizin 50(3).
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this study was to compare the effects of proprioceptive disruption on postural control for participants of different ages according to their physical and/or sport activity levels. Two groups of young and old participants who practiced chronic physical and/or sport activities (young active [n = 17; average age 20.5 +/- 1.1 yr] and old active [n = 17; average age 74.0 +/- 3.8 yr]) and two groups of young and old participants who did not practice physical and/or sport activities (young sedentary [n = 17; average age 20.0 +/- 1.3 yr] and old sedentary [n = 17; average age 74.7 +/- 6.3 yr]) participated in the study. They were compared in a bipedal quiet stance reference condition and a bilateral Achilles tendon vibration condition. Center of foot pressure displacements and frequency analysis were compared between the groups. The results indicated that when proprioceptive information was disrupted, the postural control disturbance was more important for the old sedentary group than for the other groups. There were no differences between the old active group and the young sedentary group. Postural control was less altered for the young active group than for the other groups. Aging decreases the efficiency of postural control regardless of the assessment conditions. Physical and sport activities may compensate for the disturbing effects of proprioceptive perturbation through a better use of sensory information whatever the age of the participants.
    The Journal of Rehabilitation Research and Development 09/2013; 50(6):811-20. · 1.78 Impact Factor

Full-text (2 Sources)

Download
34 Downloads
Available from
May 29, 2014