RESUMO
The purpose of this study was to describe the effects of lower limb positioning and shoe conditions on stability levels of selected single leg ballet poses performed in demi-pointe position. Fourteen female non-professional ballet dancers (mean age of 18.4±2.8 years and mean body mass index of 21.5±2.8kg/m(2)) who had practiced ballet for at least seven years, without any musculoskeletal impairment volunteered to participate in this study. A capacitive pressure platform allowed for the assessment of center of pressure variables related to the execution of three single leg ballet poses in demi pointé position: attitude devant, attitude derriére, and attitude a la second. Peak pressures, contact areas, COP oscillation areas, anterior-posterior and medio-lateral COP oscillations and velocities were compared between two shoe conditions (barefoot versus slippers) and among the different poses. Barefoot performances produced more stable poses with significantly higher plantar contact areas, smaller COP oscillation areas and smaller anterior-posterior COP oscillations. COP oscillation areas, anterior-posterior COP oscillations and medio-lateral COP velocities indicated that attitude a la second is the least challenging and attitude derriére the most challenging pose.
Assuntos
Dança/fisiologia , Extremidade Inferior/fisiologia , Equilíbrio Postural/fisiologia , Sapatos , Adolescente , Fenômenos Biomecânicos , Feminino , Pé/fisiologia , Humanos , Postura , Adulto JovemRESUMO
BACKGROUND: Parkinson's disease (PD) causes motor and non-motor impairments that affect the subject's quality of life. OBJECTIVE: To assess the effects of treadmill-walking training with additional body load on the quality of life and motor function of subjects with PD. METHODS: Nine subjects with PD, Hoehn and Yahr stages 2-3, not demented and with capability to ambulate independently took part in this study. The training program was divided into three phases (A1-B-A2): treadmill training with additional body load (A1), control condition (conventional physical therapy group; B) and a second period of treadmill training with load (A2). Each phase lasted six weeks. Quality of life and motor function were assessed by the PDQ-39 and the motor score of the Unified Parkinson's Disease Rating Scale (UPDRS), respectively. The evaluations and the training were performed during the on-phase of the medication cycle. RESULTS: There was improvement in the total PDQ-39 score across the training period. The subscores mobility, activities of daily living and cognition subscores significantly improved after the training period. The improvement in the total score was associated with motor and non-motor factors in all of the training phases. The UPDRS motor score also improved, however it did not present any association with the improvement in quality of life. CONCLUSIONS: The results showed that the treadmill-walking training with additional body load allowed an improvement in motor and non-motor aspects related to quality of life and motor function in subjects with PD.
CONTEXTUALIZAÇÃO: A doença de Parkinson (DP) causa prejuízos motores e não-motores que afetam a qualidade de vida dos sujeitos. OBJETIVO: Avaliar os efeitos de um treino de marcha em esteira, com aumento da carga corporal, sobre a qualidade de vida e a função motora de sujeitos com DP. MÉTODOS: Nove sujeitos com DP idiopática, estágio 2 a 3 da escala de Hoehn & Yahr, sem demência e com capacidade de andar independentemente participaram do estudo. O programa de treino foi dividido em três fases (A1-B-A2) de seis semanas cada: treino da marcha em esteira com aumento da carga corporal (A1), condição controle (fisioterapia convencional) (B) e treino da marcha em esteira novamente (A2). A qualidade de vida e a função motora foram avaliadas, respectivamente, pela PDQ-39 e escore motor da UPDRS (Escala Unificada de Avaliação da Doença de Parkinson). As avaliações e os treinos foram realizados na fase on do ciclo da medicação. RESULTADOS: Houve melhora no escore total da PDQ-39 ao longo do período de treino. Os subitens mobilidade, atividades da vida diária e cognição da PDQ-39 melhoraram significativamente após o treino. A melhora no escore total mostrou correlação com fatores motores e não-motores. O escore motor da UPDRS também melhorou, no entanto, não houve correlação com a melhora na qualidade de vida. CONCLUSÃO: Os resultados mostraram que o treino em esteira com aumento de carga corporal permitiu uma melhora de aspectos motores e não-motores relacionados à qualidade de vida e à função motora de sujeitos com DP.