Skip to main content
Ch. 9 The Muscular System
Chapter 9, Problem 9.3a

Elise is a competitive gymnast who strained muscles in her left lower limb doing a tumbling pass. She has pain with extension of her leg and inversion of her foot. Which muscles did she potentially strain?

Verified step by step guidance
1
Identify the muscles involved in leg extension and foot inversion.
Consider the quadriceps group for leg extension, particularly the rectus femoris.
For foot inversion, focus on the tibialis anterior and tibialis posterior muscles.
Evaluate the possibility of strain in these muscles based on Elise's symptoms.
Consider the anatomical location and function of these muscles to determine the likelihood of strain.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
0m:0s
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Muscle Anatomy of the Lower Limb

Understanding the anatomy of the lower limb is crucial for identifying which muscles may be involved in Elise's injury. Key muscle groups include the quadriceps, hamstrings, gastrocnemius, and tibialis anterior, each playing a role in leg extension and foot inversion.
Recommended video:
Guided course
2:16
Bone of the Lower Limb Example 1

Mechanics of Gymnastics Movements

Gymnastics involves complex movements that require strength, flexibility, and coordination. Tumbling passes, like the one Elise performed, place significant stress on the lower limb muscles, particularly during explosive movements that involve leg extension and foot positioning.
Recommended video:
3:02
Internal Regulation - The Myogenic Mechanism

Common Sports Injuries

Familiarity with common sports injuries helps in understanding potential strains. In gymnastics, muscle strains often occur due to overexertion or improper technique, particularly in the muscles responsible for leg extension and foot inversion, leading to pain and functional limitations.
Recommended video:
4:28
Overview of Hemostasis