Jumper's Knee Exercises: Heal Patellar Tendinopathy

Jumper's knee (patellar tendinopathy) causes pain at the bottom of the kneecap where the patellar tendon attaches. Common in basketball, volleyball, and any sport involving jumping, this condition responds well to progressive loading exercises—if done correctly.

Understanding Jumper's Knee

What's happening:

Patellar tendon becomes irritated and degenerates
Typically at the tendon's attachment to the kneecap
Results from repetitive loading, not inflammation
Called "tendinopathy" not "tendinitis" (it's degeneration, not inflammation)

Common causes:

Jumping and landing repetitively
Rapid increase in training volume
Hard playing surfaces
Poor landing mechanics
Tight quadriceps
Weak hip muscles

Symptoms:

Pain at bottom of kneecap
Worse with jumping, running, squatting
Stiffness after sitting
Pain climbing stairs
May feel better once warmed up

Phases of Recovery

Tendon rehabilitation follows a specific progression. Don't skip phases.

Phase 1: Isometrics (pain reduction) Phase 2: Isotonic strengthening Phase 3: Energy storage (plyometrics) Phase 4: Return to sport

Phase 1: Isometric Loading (Weeks 1-2)

Isometrics reduce pain and begin tendon loading without full movement.

Wall Sit (Isometric Hold)

The cornerstone exercise:

Back against wall
Slide down to 60-90° knee bend
Hold 45 seconds
Rest 1 minute
Repeat 4-5 times
Do 2-3 times daily

Pain should decrease during or after this exercise. If pain increases, try less knee bend.

Single Leg Extension Hold

Sit on chair or bench
Straighten knee to 60° (not fully straight)
Hold 45 seconds
Rest 1 minute
Repeat 4-5 times each leg
Add ankle weight for progression

Spanish Squat (Isometric)

Band around something stable at knee height
Step into band, behind knees
Lean back into band, squat position
Hold 45 seconds
Band reduces patellofemoral stress

Phase 2: Isotonic Strengthening (Weeks 3-8)

Slow, controlled exercises with movement.

Slow Eccentric Squat on Decline Board

Gold standard for patellar tendinopathy:

Stand on 25° decline board (or wedge)
Squat down slowly (3-4 seconds)
Stop at 90° knee bend
Use other leg or arms to help stand up
Focus on slow lowering phase
3 sets of 15, once daily

If no decline board: heels on 2-3 inch elevation

Heavy Slow Resistance (HSR) Squat

Barbell or weighted squat
3 seconds down, 3 seconds up
Heavy weight (6-8 rep max)
4 sets of 6-8 reps
3 times per week
Research shows excellent results

Leg Press (Slow)

3 seconds down, 3 seconds up
Don't lock knees at top
4 sets of 8-10
Increase weight progressively

Split Squat

Rear foot elevated on bench (Bulgarian) or floor
Lower slowly (3 seconds)
Push up with control
3 sets of 10 each leg

Step Downs

Stand on 6-8 inch step
Slowly lower opposite foot to floor
Tap and return
3 sets of 10 each leg
Control is key

Leg Extension Machine

Slow and controlled
Start with lighter weight
3 seconds up, 3 seconds down
3 sets of 12
Avoid if causes pain

Phase 3: Energy Storage (Weeks 8-12+)

Tendons need to handle rapid loading. Progress here only when Phase 2 exercises are pain-free.

Jump and Stick

Small vertical jump
Land and hold (freeze)
Soft landing, absorb with legs
3 sets of 8
Progress height gradually

Box Jumps (Step Down)

Jump onto box
Step down (don't jump down yet)
Focus on landing softly
3 sets of 8
Progress to jumping down

Single Leg Hop and Stick

Small hop on one leg
Land and freeze
Maintain balance
3 sets of 5 each leg

Depth Drops

Step off low box
Land and hold
Soft, controlled landing
3 sets of 6
Progress box height

Repeated Jumps

Continuous small jumps
10-20 seconds
Focus on quick ground contact
Build up volume gradually

Phase 4: Return to Sport

Sport-Specific Drills

Practice jumping and landing in sport context
Start at 50% intensity
Progress 10-20% per week
Monitor symptoms

Volume Management

Don't return to full training immediately
Gradual increase in jumping volume
Monitor 24-hour pain response
Reduce if symptoms increase

Supporting Exercises

Hip Strengthening (Critical)

Weak hips increase patellar tendon load.

Clamshells

3 sets of 15 each side

Side-Lying Hip Abduction

3 sets of 15 each side

Single Leg Glute Bridge

3 sets of 10 each side

Monster Walks

Band around ankles, 20 steps each direction

Quadriceps Stretching

Standing Quad Stretch

Grab ankle behind
Pull toward buttock
Keep knees together
Hold 30 seconds each

Couch Stretch

Rear foot against wall or couch
Front foot forward
Stay upright
Hold 1-2 minutes each

Calf Strengthening

Calf Raises

3 sets of 15
Important for landing mechanics

Pain Monitoring

Use the 0-10 pain scale:

During exercise:

0-3: Acceptable
4-5: Caution, may need to modify
6+: Stop, reduce intensity

24 hours after exercise:

Pain should not increase more than 2 points
If it does, reduce load next session

Week to week:

Overall pain should trend downward
Some fluctuation is normal

What NOT to Do

Don't rest completely (makes tendons weaker)
Don't stretch aggressively (can irritate tendon)
Don't use ice after exercise (may impair adaptation)
Don't take NSAIDs long-term (may slow healing)
Don't return to jumping too soon
Don't ignore the hip

Sample Weekly Schedule

Phase 2 (Weeks 3-8)

Monday, Wednesday, Friday:

Decline squat: 3x15
Split squat: 3x10 each
Hip strengthening: 2-3 exercises
Quad stretch: 2 min

Tuesday, Thursday:

Light activity (swimming, cycling)
Quad stretch

Phase 3 (Weeks 8-12)