What Is the Kinetic Chain? How Does It Relate to Elbow Pain?

What Is the Kinetic Chain? How Does It Relate to Elbow Pain?

The kinetic chain is a system where energy is continuously transferred from toes to fingertips. In tennis or throwing motions, the arm contributes only 20% of the total power, while the remaining 80% is generated from the legs, hips, and trunk. If any link in this chain is weak, the elbow becomes overloaded and develops pain.

Kinetic Chain: How Is Energy Transferred?

In motions like a tennis serve or baseball pitch, energy is transferred in this sequence.

1

Feet and Legs (Ground Reaction Force)

Pushing off the ground generates energy and is one part of the body’s kinetic chain.

2

Hips and Core (Rotational Power)

The pelvis and trunk rotate to amplify energy. Approximately 25% of total energy.

3

Back (Thoracic Spine) and Shoulder (Acceleration)

The spine rotates and shoulder accelerates to transfer energy to the arm. Approximately 25% of total energy.

4

Elbow and Wrist (Final Transmission)

The elbow is a link that transfers generated energy to the fingertips. Directly generates only about 20% of energy.

How “Energy Leaks” Affect the Elbow

Research Data

If energy transmitted from the core and hip decreases by just 20%, shoulder rotation speed must increase by 34%. This compensatory action overloads the elbow.

Common points where energy leaks occur:

  • Ankle instability reduces how much ground reaction force you can use, so you end up throwing with the arm alone.
  • Core weakness drains trunk rotational power, so the elbow over-rotates to compensate.
  • Thoracic spine stiffness overloads the shoulder and raises valgus stress on the elbow.
  • Scapular instability lets the shoulder wobble, which overworks the forearm muscles.

What Happens When the Kinetic Chain Breaks?

Example: Tennis Player with Weak Core

Normally:

  • Lower body 30% + Core 25% + Shoulder 25% + Arm 20% = 100%

If the core is weak and contributes only 15%:

  • Lower body 30% + Core 15% + Shoulder 30% + Arm 25% = 100%

That leaves the elbow handling 125% of its normal load.

The tendon takes repeated microtrauma, and tennis elbow develops.

Circulation Therapy for Kinetic Chain Recovery

Elbow pain often needs the broken kinetic chain to be assessed as well.

  • Circulation HD. Used to address elbow tendon adhesions and overtension
  • Circulation PT:
    • Lower extremity stability training
    • Core stabilization (transverse abdominis, multifidus)
    • Thoracic spine mobility restoration
    • Whole-body kinetic chain integration training

Related Questions

References

  • Ellenbecker TS, Aoki R. Step by step guide to understanding the kinetic chain concept in the overhead athlete. Curr Rev Musculoskelet Med. 2020;13(2):155-163. PMID 32172436
  • Saini SS, et al. Kinetic chain dysfunction and its relationship to upper extremity injuries in the overhead athlete. Curr Rev Musculoskelet Med. 2020;13(6):754-762. PMC7661674
  • Gasibat Q, Tengku Kamalden TF. Understanding the kinetic chain in sport performance and injury prevention. Sports Med Health Sci. 2021;3(3):125-131. PMC9219320
  • Almansoof HS, et al. Effects of lumbopelvic motor control deficits on the upper extremity kinetic chain. J Med Life. 2023;16(2):175-181. PMC10893580
  • Bradley A, et al. Proximal-to-distal energy transfer in overhead athletes: a systematic review. Adv Rehabil Sci Pract. 2025. PMC12489206

Does Your Elbow Pain Keep Recurring?

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