TKE (Terminal Knee Extensions) (How To)

TKEs are a band-resisted knee extension exercise used to strengthen the quadriceps, especially the vastus medialis oblique (VMO), and improve knee stability.

They’re commonly used in rehab or warm-ups for building strength around the knee joint, improving joint mechanics, and restoring full extension post-injury or after squatting and running.

Primary Muscles Worked: Quadriceps (with focus on VMO)
Secondary Muscles Worked: Glutes (stabilization), Calves
Equipment Needed: Resistance Band anchored at knee height

How To Do TKEs

Step-by-Step Instructions

Set-Up:
- Anchor a resistance band to a sturdy object at about knee height.
- Loop the band around the back of one knee and step back to create light tension.
- The working leg is slightly bent, with the other leg staggered just in front for support.
Execution:
- From the bent knee position, contract your quad to straighten the knee fully against the band’s resistance.
- Hold full extension for 1–2 seconds, squeezing the quad tightly.
- Slowly return to the starting (slightly bent) position under control and repeat.
Tips for Proper Form:
- Keep your foot flat on the floor and maintain balance with the front leg.
- Focus on squeezing the quad hard at the end range.
- Avoid locking out aggressively. Control is key.

Key Benefits

Strengthens the quads to improve knee stability and tracking.
Helps restore full knee extension post-injury or surgery.
Useful for warming up the knees before squats, lunges, or running.

Modifications and Variations

Easier Option:
- Use a lighter band or reduce tension by stepping closer to the anchor point.
- Shorten the range of motion until strength improves.
Harder Option:
- Add a longer pause at full extension.
- Perform slower eccentrics (3–4 seconds back to start).

Common Mistakes

Letting the Foot Lift: Keep the whole foot planted flat during the movement.
Lack of Control: Don’t rush through. Focus on smooth contractions and controlled returns.
Not Fully Extending: The goal is to reach full lockout with quad engagement – don’t stop short.

Reps and Sets Recommendations

For Rehab or Warm-Up: 2–3 sets of 15–20 reps per leg.
For Strength/Activation: 3–4 sets of 10–15 reps with a 1–2 second hold at the top.
In Prehab Circuits: Pair with glute bridges or wall sits for complete lower-body prep.