Muscle strain, also known as muscle spasm or overstretching, occurs when muscle fibers are stretched beyond their normal capacity, leading to tissue damage. Common causes include overexertion, inadequate warm-up, poor posture, or underlying medical conditions. Typical symptoms include localized pain, swelling, and limited range of motion.
This article is written under the professional guidance of doctors from the Department of Orthopedic Trauma and Sports Medicine at Vinmec International General Hospital.
1. Overview of Muscle Strain
Muscle strain—or overstretched or pulled muscle—occurs when muscle fibers are overstretched, and in more severe cases, partially or completely torn. This condition often results from muscle fatigue, overuse, or improper movement.
Muscle strain can affect any muscle group, but is most commonly seen in the lower back, neck, shoulders, and hamstrings.
In mild cases, the muscle is stretched or slightly torn, often with minor damage to the muscle fibers. In more serious cases, muscle fibers may rupture completely. For instance, in calf strains, a few muscle fibers may tear, while most of the tissue remains intact.
2. Causes of Muscle Strain
Muscle strain occurs when muscles are suddenly and forcefully stretched or torn, usually due to injury or trauma. Common causes include:
- Inadequate warm-up before intense physical activity
- Poor muscle flexibility or elasticity
- Overexertion leading to muscle fatigue
A common misconception is that muscle strain only occurs during high-impact or intense activities. However, according to several U.S. medical sources, muscle strain can also happen during simple daily movements such as walking, slipping jumping running, throwing objects, lifting heavy items, lifting with improper posture
To arrange an appointment, please call HOTLINE or make your reservation directly HERE. You may also download the MyVinmec app to schedule appointments faster and manage your reservations more conveniently.
