Investigation of Factors Affecting Physical Activity Level in Children With Duchenne Muscular Dystrophy Based on the International Classification of Functioning, Disability and Health - Child and Youth Version

Hacettepe University0 个研究点目标入组 30 人开始时间: 2026年2月2日最近更新: 2026年1月29日

试验速览

阶段: 不适用
状态: 尚未招募
发起方: Hacettepe University
入组人数: 30
主要终点: Physical Activity Questionnaire for Children-PAQ-C

研究概览研究设计入排标准结局指标研究者记录与标识符相似试验

研究概览

简要总结

Duchenne Muscular Dystrophy (DMD) is a neuromuscular disease characterized not only by progressive muscle weakness but also by cognitive, behavioral, and psychosocial impairments. Motor losses that occur during disease progression reduce physical activity levels in children and increase the risk of developing a sedentary lifestyle. Interventions aimed at maintaining or promoting physical activity in children with DMD are important for preventing secondary complications associated with disuse and physical inactivity. To develop effective interventions, there is a need for comprehensive knowledge regarding the factors that influence physical activity levels.

Current literature indicates that, in typically developing children, physical activity levels are influenced not only by motor factors but also by cognitive status, sleep, behavioral characteristics, and family-related environmental and psychosocial factors. However, information regarding these multidimensional factors affecting physical activity levels in children with DMD remains limited.

This study aims to identify the body functions, activity, participation, environmental, and personal factors affecting physical activity levels in children with DMD based on the framework of the International Classification of Functioning, Disability and Health - Children and Youth Version (ICF-CY). Accordingly, the effects of posture, functional capacity, ambulatory status, balance, other musculoskeletal parameters, cognitive status, sleep habits and sleep quality, fear of falling, and behavioral characteristics, as well as family-related factors including parenting style, perceptions of physical activity, stress level, attitudes and perceptions toward daily life events, and disease impact, will be evaluated. The impact of these variables on physical activity levels and the magnitude of this effect will be examined within the ICF-CY framework.

详细描述

Duchenne Muscular Dystrophy (DMD) is the most common inherited neuromuscular disorder, affecting approximately one in 3,500-5,000 live male births worldwide. It is caused by various mutations in the dystrophin gene located on Xp21.2, most commonly deletions and duplications, leading to the absence of dystrophin protein in skeletal muscle, cardiac muscle, and the central nervous system. The lack of dystrophin results in progressive muscle weakness beginning in early childhood, typically between 18 months and 3 years of age, followed by gradual loss of ambulation, increasing dependence in daily activities, and the development of serious cardiac, respiratory, and orthopedic complications later in life.

In addition to motor impairments, dystrophin deficiency in the brain has been associated with cognitive, behavioral, and psychosocial difficulties. DMD-related mutations affect multiple dystrophin isoforms that are expressed in key brain regions involved in attention, memory, executive functions, and emotional regulation. As a result, children with DMD frequently present with impairments in attention, executive functioning, learning, behavior, and emotional regulation. These non-motor manifestations further complicate disease management and have a substantial impact on participation in daily life and overall quality of life for both children and their families.

During disease progression, increasing motor limitations significantly restrict children's engagement in physical activity and increase the likelihood of adopting a sedentary lifestyle. Reduced physical activity contributes to secondary complications related to disuse, such as decreased cardiorespiratory fitness, reduced bone mineral density, increased fatigue, and further functional decline. Therefore, maintaining and supporting physical activity is considered a critical component of comprehensive care in children with DMD. However, the development of effective and sustainable physical activity-related interventions requires a thorough understanding of the factors influencing physical activity behavior in this population.

In typically developing children, physical activity levels are known to be influenced by a wide range of motor and non-motor factors, including physical function, cognitive status, sleep habits, behavioral characteristics, and family-related environmental and psychosocial factors. Although similar interactions are likely to exist in children with DMD, current evidence regarding the multidimensional determinants of physical activity in this population remains limited. In particular, the combined influence of body functions, activity limitations, participation restrictions, and family-related factors has not been sufficiently investigated within a comprehensive conceptual framework.

The International Classification of Functioning, Disability and Health - Children and Youth Version (ICF-CY), developed by the World Health Organization, provides a biopsychosocial model that enables a holistic evaluation of health by considering body functions and structures, activity, participation, and contextual factors. Using the ICF-CY framework allows for the systematic examination of the dynamic interactions between individual and environmental factors that shape physical activity behavior in children with chronic health conditions.

研究设计

研究类型: Observational
观察模型: Case Only
时间视角: Prospective

入排标准

年龄范围: 6 Years 至 14 Years（Child）
性别: Male
接受健康志愿者: 否

入选标准

•Inclusion Criteria (Parents):
•Being a parent or primary caregiver of a child diagnosed with Duchenne Muscular Dystrophy (DMD),
•Volunteering to participate in the study.

排除标准

•Having caregiving responsibilities for another child or adult with a disability, other than the child with DMD,
•Experiencing difficulties in understanding or responding to the questionnaires administered by the physiotherapist.
•Inclusion Criteria (Children with DMD):
•Having a confirmed diagnosis of Duchenne Muscular Dystrophy (DMD),
•Being between 6 and 14 years of age,
•Being classified within the first four levels of the Brooke Lower Extremity Functional Classification (ambulatory children),
•Scoring >24 on the Modified Mini-Mental State Examination,
•Volunteering to participate in the study.
•Exclusion Criteria (Children with DMD):
•Having undergone any musculoskeletal surgery or sustained an injury that could affect physical activity within the past 6 months,
•Experiencing difficulty in understanding the test instructions administered by the physiotherapist and therefore being unable to appropriately perform the tests (performance-based assessments),
•Experiencing difficulties in understanding or responding to the questionnaires administered by the physiotherapist.