Long Duration Exercise Program in Individuals with Parkinson’s Disease: Effects on Functional Capacity

Research Article

Austin Alzheimers J Parkinsons Dis. 2014;1(1): 7.

Long Duration Exercise Program in Individuals with Parkinson’s Disease: Effects on Functional Capacity

Baptista AM1, Gobbi LTB1, Beretta VS1, Vitório R1, Teixeira-Arroyo C1, Lirani-Silva E1, Stella F1,3 and Barbieri FA2*

1Department of Physical Education, University of Estadual Paulista,UNESP Rio Claro, Brazil

2Department of Physical Education, University of Estadual Paulista, UNESP Bauru, Brazil

3UNICAMP – Campinas State University at Campinas, Brazil

*Corresponding author: Barbieri FA, Department of Physical Education, Information, Vision and Action Laboratory, University of Estadual Paulista, UNESP, Faculty of Science - Bauru,SP, Brazil.

Received: August 06, 2014; Accepted: August 29, 2014; Published: August 30, 2014

Abstract

The aim of this study was to investigate the effects of long duration exercise program on physical fitness components of functional capacity in individuals with Parkinson disease (PD) and to evaluate ongoing effects of exercise after 8 to 10-week follow-up without exercise. Twenty-four individuals with PD were randomly assigned to two groups: generalized exercise program and stretching exercise program (control group). The generalized exercise program provided training in physical fitness components of functional capacity. The stretching exercise program was characterized by low intensity and volume, mainly with static exercises. Both groups were evaluated before (BI) and after the 4-month (AI) exercise program. In addition, the individuals of generalized exercise program were also evaluated after 8-month exercise program and after 8 to 10- week follow-up without exercise. The generalized exercise program improved flexibility (BI - 38.50±12.42 cm; AI - 44.00±12.74 cm) and agility (BI - 30.59±7.54 s; AI - 28.56±8.20 s) while the stretching exercise program worsened coordination (BI - 23.27±6.58 s; AI - 28.06±7.37 s) and aerobic resistance (BI- 13.64±3.76 min; AI - 17.27±5.15 min) and improved balance (BI - 44.00±7.79 pts; AI - 46.57±6.53 pts). Lower-limb strength and UPDRS-motor scale scores were better at 8 months (14.75±2.92 rep and 26.25±13.97 pts, respectively) compared to baseline (13.13±2.59 rep and 31.63±12.82 pts, respectively) and 4 months (13.50±1.93 rep and 30.38±14.52 pts, respectively) for generalized exercise program. However, the benefits of 8 months of exercise were lost after 8 to 10-week follow-up without exercise (lower-limb strength - 12.43±3.15 rep and UPDRS-motor scale - 32.57±14.05 pts). In conclusion, generalized exercise program improved the functional capacity in individuals with PD, differently of stretching exercise program. In addition, a long duration exercise program promoted benefits for functional capacity and disease progression in individuals with PD. However, benefits were lost after a short period without exercise.

Keywords: Exercise program; Long duration; Functional capacity; Parkinson disease

Introduction

Exercise and pharmacological treatment are considered the most efficient strategies to manage the symptoms of Parkinson’s disease (PD) [1-3]. Despite importance of pharmacological treatment to reduce the motor and non-motor symptoms [4], many collateral effects are caused by the prolonged use of PD medicines [5,6]. On the other hand, exercise programs have no collateral effects and are able to improve multiple dimensions of the quality of life in individuals with PD [7], such as balance and mobility [8-11], motor symptoms [10,12,13] and mainly functional capacity [14-16], which is the primary symptom to impair in PD [17]. The progressive reduction of functional capacity occurs due to impaired basal ganglia having an inadequate effect on the cortical motor centers [18-20]. Longterm exercise benefits brain functioning by increasing the blood and oxygen flow to the brain [21], promoting neurogenesis and synaptic plasticity [2], and facilitating motor performance through release of neurotransmitters, such as dopamine [1,2]. However, little is known about the effects of long duration exercise on functional capacity in individuals with PD, mainly related to the optimal content of exercise programs (intensity, dosing and component exercises) [3,14].

Effects of short duration exercise programs (from 8 to 12 weeks) on functional capacity are well known [22-24]. The main adaptations and improvements of exercise programs happened in the first months of exercise program [25]. However, exercise practice should not be promoted only as a therapy during some weeks or months, but as an activity of a healthy individual lifestyle [8]. Although it is well documented that physical activity should be a component of healthy everyday life for everyone [26,27], there are in the literature few studies that prescript exercise programs by more than 4 months uninterrupted (long duration exercise programs) and totally supervised for individuals with PD [8-11,14,16]. Only Orcioli-Silva and collaborators [14] and States and collaborators [16] investigated specifically the effects of long duration exercise program on physical fitness components of functional capacity, such as aerobic endurance, coordination, flexibility and strength. Moreover, previous studies did not consider the benefits of the exercise after a period without exercise (follow-up). Therefore, new studies are necessary to help in the prescription of long duration exercise programs for individuals with PD, especially for functional capacity.

The aim of this study was to investigate the effects of long duration exercise program on functional capacity in individuals with PD and to evaluate ongoing effects of exercise after 8 to 10-week follow-up without exercise. We compared two types of 4-month exercise programs: generalized exercise program and stretching exercise program (control group). In addition, we analyzed the effects of 8-month generalized exercise program and the ongoing benefits after 8 to 10-week follow-up. The hypotheses of the study were: i) the individuals who participated on generalized exercise program would improve more the components of functional capacity, such as balance, resistance and strength, than individuals who participated on stretching exercise program; ii) 8 months of exercise would promote more improvements on the components of functional capacity than 4 months; iii) the benefits of 8 months of exercise after 8 to 10-week follow-up.

Materials and Methods

Twenty-four individuals with PD participated in this study (Table 1), who participated in a multidisciplinary project in PD conducted at São Paulo State University at Rio Claro (UNESP-RC). They were clinically examined by an expert physiatrist (FS), who confirmed the diagnosis of PD. The inclusion criteria included individuals had a clinically confirmed diagnosis of PD scored between I and III on the Hoehn& Yahr rating scale [28], regular intake of PD drugs, and being able to participate in the exercise independently. All of the participants provided written informed consent to participate in this study, which was approved by the local institutional review board. The participants were randomly assigned to, according Hoehn & Yahr scale and age, two groups: generalized exercise program and stretching exercise program (control group). Each group was composed by 12 individuals with idiopathic PD.