Your quadriceps muscles (in the thigh) may be tight from running or other exercise. Try these quad stretches to loosen tight quads and improve flexibility.
Leg Stretches: Improve Flexibility
5 MIN QUAD STRETCH Quadricep Stretches for Tight Quads
Hip Flexor Exercises to Strengthen and Stretch
Essential Stretches for Runners
Senior Man Performing Quad Stretch While Taking Support, 41% OFF
Hip Flexor Exercises to Strengthen and Stretch
Running Tips: 3 Essential Quad Stretches
Senior Man Performing Quad Stretch While Taking Support, 41% OFF
Løpetips: 3 Essential Quad Stretches - Drikk-Drikk