Limits...
Obese elderly women exhibit low postural stability: a novel three-dimensional evaluation system.

Carneiro JA, Santos-Pontelli TE, Vilaça KH, Pfrimer K, Colafêmina JF, Carneiro AA, Ferriolli E - Clinics (Sao Paulo) (2012)

Bottom Line: Body composition was measured using the deuterium oxide dilution technique.The Polhemus(®) Patriot (three-dimensional) equipment was used to measure the parameters of postural balance along the anteroposterior and laterolateral axes.Obese elderly women exhibited a lower stability limit (lower sway area) compared with eutrophic women, leaving them more vulnerable to falls.

View Article: PubMed Central - PubMed

Affiliation: Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Department of Internal Medicine, SP, Brazil.

ABSTRACT

Objective: The aim of this study was to evaluate the multisegmental static postural balance of active eutrophic and obese elderly women using a three-dimensional system under different sensory conditions.

Methods: A cross-sectional study was conducted on 31 elderly women (16 eutrophic and 15 obese) aged 65 to 75 years. The following anthropometric measurements were obtained: weight, height, waist and hip circumference, and handgrip strength. The physical activity level was evaluated using the International Physical Activity Questionnaire. Body composition was measured using the deuterium oxide dilution technique. The Polhemus(®) Patriot (three-dimensional) equipment was used to measure the parameters of postural balance along the anteroposterior and laterolateral axes. The data acquisition involved one trial of 60 s to test the limit of stability and four trials of 90 s each under the following conditions: (1) eyes open, stable surface; (2) eyes closed, stable surface; (3) eyes open, unstable surface; and (4) eyes closed, unstable surface.

Results: For the limit of stability, significant differences were observed in the maximum anteroposterior and laterolateral displacement (p<0.01) and in the parameter maximum anteroposterior displacement in the eyes closed stable surface condition (p<0.01) and maximum anteroposterior and laterolateral displacement in the eyes open unstable surface (p<0.01 and p = 0.03) and eyes closed unstable surface (p<0.01 and p<0.01) conditions.

Conclusions: Obese elderly women exhibited a lower stability limit (lower sway area) compared with eutrophic women, leaving them more vulnerable to falls.

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Related in: MedlinePlus

The location of the electromagnetic sensors. Tx: transmitter and representation of the three planes. S1 and S2: 1st thoracic vertebra and sacral region.
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f1-cln_67p475: The location of the electromagnetic sensors. Tx: transmitter and representation of the three planes. S1 and S2: 1st thoracic vertebra and sacral region.

Mentions: During data acquisition, the volunteers remained standing in the orthostatic position (barefoot and with arms at their sides) first on the wood platform (stable surface) and then on the foam platform (unstable surface) (26), with a distance of approximately 12 cm between their heels on both platforms. The magnetic sensors were placed on the skin and fixed with a bandage over the spinous process of the first thoracic vertebra (S1) and over the sacral region (S2). The magnetic transmitter bobbin was placed on a support approximately 40 cm away from the volunteer's body at approximately the height of the sensors (Figure 1). The system had a normal sensitivity with a range of 1 m (boostable to 3 m) (19).


Obese elderly women exhibit low postural stability: a novel three-dimensional evaluation system.

Carneiro JA, Santos-Pontelli TE, Vilaça KH, Pfrimer K, Colafêmina JF, Carneiro AA, Ferriolli E - Clinics (Sao Paulo) (2012)

The location of the electromagnetic sensors. Tx: transmitter and representation of the three planes. S1 and S2: 1st thoracic vertebra and sacral region.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3351265&req=5

f1-cln_67p475: The location of the electromagnetic sensors. Tx: transmitter and representation of the three planes. S1 and S2: 1st thoracic vertebra and sacral region.
Mentions: During data acquisition, the volunteers remained standing in the orthostatic position (barefoot and with arms at their sides) first on the wood platform (stable surface) and then on the foam platform (unstable surface) (26), with a distance of approximately 12 cm between their heels on both platforms. The magnetic sensors were placed on the skin and fixed with a bandage over the spinous process of the first thoracic vertebra (S1) and over the sacral region (S2). The magnetic transmitter bobbin was placed on a support approximately 40 cm away from the volunteer's body at approximately the height of the sensors (Figure 1). The system had a normal sensitivity with a range of 1 m (boostable to 3 m) (19).

Bottom Line: Body composition was measured using the deuterium oxide dilution technique.The Polhemus(®) Patriot (three-dimensional) equipment was used to measure the parameters of postural balance along the anteroposterior and laterolateral axes.Obese elderly women exhibited a lower stability limit (lower sway area) compared with eutrophic women, leaving them more vulnerable to falls.

View Article: PubMed Central - PubMed

Affiliation: Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Department of Internal Medicine, SP, Brazil.

ABSTRACT

Objective: The aim of this study was to evaluate the multisegmental static postural balance of active eutrophic and obese elderly women using a three-dimensional system under different sensory conditions.

Methods: A cross-sectional study was conducted on 31 elderly women (16 eutrophic and 15 obese) aged 65 to 75 years. The following anthropometric measurements were obtained: weight, height, waist and hip circumference, and handgrip strength. The physical activity level was evaluated using the International Physical Activity Questionnaire. Body composition was measured using the deuterium oxide dilution technique. The Polhemus(®) Patriot (three-dimensional) equipment was used to measure the parameters of postural balance along the anteroposterior and laterolateral axes. The data acquisition involved one trial of 60 s to test the limit of stability and four trials of 90 s each under the following conditions: (1) eyes open, stable surface; (2) eyes closed, stable surface; (3) eyes open, unstable surface; and (4) eyes closed, unstable surface.

Results: For the limit of stability, significant differences were observed in the maximum anteroposterior and laterolateral displacement (p<0.01) and in the parameter maximum anteroposterior displacement in the eyes closed stable surface condition (p<0.01) and maximum anteroposterior and laterolateral displacement in the eyes open unstable surface (p<0.01 and p = 0.03) and eyes closed unstable surface (p<0.01 and p<0.01) conditions.

Conclusions: Obese elderly women exhibited a lower stability limit (lower sway area) compared with eutrophic women, leaving them more vulnerable to falls.

Show MeSH
Related in: MedlinePlus