Which of the following conditions is associated with weakening of the hip extensors in early stages?

Muscular dystrophy is characterized by a progressive degeneration of muscle fibers, which ultimately leads to muscle weakness. In the early stages of the disease, specific muscle groups may show weakness before others, and hip extensors are often affected. This weakening can significantly impact a person's ability to perform movements requiring hip extension, such as standing and walking.

The condition generally begins in childhood, and while various forms of muscular dystrophy exist, they typically involve the proximal muscles first, including those around the hip. This gradual loss of strength impairs mobility and can lead to the need for bracing or other interventions to assist with function.

Understanding the nature of muscular dystrophy helps highlight how early weakness in hip extensors can lead to broader functional limitations over time, thus necessitating early interventions in physical therapy or the use of assistive devices.