In a Grade 1 strain, what symptom is typically present?

In a Grade 1 strain, the defining characteristic is that only some muscle fibers are stretched or partially torn. This mild level of injury often results in minimal pain and swelling, and the affected area may still retain functional movement. The muscle is typically not severely damaged, which is why athletes may experience discomfort but can still perform certain activities without significant limitations.

In contrast, more severe strains, such as Grade 2 and Grade 3, would involve greater damage, including substantial swelling, bruising, or a complete loss of movement due to more extensive tearing of muscle fibers. Therefore, in the context of identifying symptoms associated with a Grade 1 strain, the presence of some stretched or torn fibers aligns accurately with the typical injury characteristics.