Positive effects of auditory cue in locomotor pattern of people with Parkinson's disease (off and on medication) / Efeito positivo da dica auditiva no padrão locomotor de pacientes com doença de Parkinson

Gait disorders are identified in people with Parkinson's disease. The aim of this study was to investigate the effect of auditory cues and medication on kinematic, kinetic and EMG parameters, during different gait phases of people with PD and healthy elderly. Thirty subjects distributed in two groups (Group 1, PD patients off and on medication; Group 2, healthy elderly) participated in this study and were instructed to walk in two experimental conditions: non-cued and cued. Therefore, kinematic, kinetic and electromyography analyses were utilized to investigate the locomotor pattern. Changes in locomotor pattern (greater muscular activity) with auditory cue were observed for PD patients. Regarding the medication, locomotor parameter improvement was observed after levodopa intake in association with the auditory cue. These results confirm the hypothesis about the external cues therapy that could be used as a complement to drug therapy to achieve improvement in the locomotor pattern of PD patients

Mudanças na marcha são identificadas em pacientes com doença de Parkinson (DP). O objetivo deste estudo foi investigar o efeito da dica auditiva e do medicamento nos parâmetros cinemáticas, cinéticos e eletromiograficos durante diferentes fases da marcha em pacientes com DP e idosos sadios. 30 indivíduos distribuídos em dois grupos (Grupo 1, pacientes com DP; Grupo 2, idosos sadios) participaram deste estudo e foram instruídos a realizarem duas tarefas experimentais: marcha com e sem dica auditiva. Análise cinemática, cinética e eletromiográficas foram utilizadas para investigar o padrão locomotor. Mudanças no padrão locomotor (maior ativação muscular) foram observadas para os pacientes com DP. Em relação à medicação, melhoras no padrão locomotor foram observadas após a ingestão da levodopa em associação com a dica auditiva. Estes resultados confirmam a hipótese sobre a terapia com dicas externas, que pode ser utilizada como um complemento à terapia medicamentosa para melhorar o padrão locomotor de pacientes com DP

Effects of a Videotaped Arm Swinging Exercise Program on Gait in Parkinson's Disease Patients / The Japanese Journal of Rehabilitation Medicine

Gait disturbance is a serious problem in Parkinson's disease (PD). Exercise therapy is used to alleviate this complaint. We investigated the effects of a videotaped arm swinging-based home exercise program on gait in PD patients. The subjects included 25 outpatients aged between 55 and 77 years (average age 68.9 years) with PD in Hoehn and Yahr stages II-IV. We prepared a master video tape in which a trainer was shown to be performing an arm swinging exercise or steps in synchrony with a metronome. The exercise menu consisted of 4 parts : arm swinging in a seated position, arm swinging in an upright position without stepping, arm swinging with stepping, and walking on the floor or taking a walk. The patients performed the arm swinging exercise while watching a video tape everyday for a period of 3.4 weeks. Of the 25 patients, 22 completed the exercise program. Following the program, these patients showed significant improvements in their walking times for a 20m walk (10 m, return, 10 m) (before/after=29.6/24.3 sec, <i>p</i>=0.002) and in the step length (before/after=43.7/50.1 cm, <i>p</i><0.001). Frozen gait was a negative factor to complete the programs. Improvement of gait speed after the exercise was related with less frequency of cadence. Loss of arm swinging in PD may be associated with a disturbance in the internal rhythm formation process. Arm swinging exercises are one of the exercise methods that use rhythmic cues. This study suggests that a videotaped arm swinging-based home exercise therapy is effective in such patients.