Recovery
Tendon Health
Tendons are the fibrous connective tissue structures that attach muscle to bone and transmit the forces generated during training and competition. Tendon health is a core concern in sport performance because tendon injuries, including tendinopathy, partial tears, and ruptures, are among the most common and most performance-limiting problems in athletic populations. Unlike muscle, tendon tissue has poor blood supply and adapts slowly, which means it can lag behind the muscular adaptations driven by strength training and become the limiting factor in an athlete’s ability to tolerate load.
Tendinopathy vs. tendinitis
These terms are often used interchangeably but mean different things. Tendinitis implies acute inflammation, which is actually less common in athletic tendon injuries than the chronic degenerative changes captured by the term tendinopathy. Tendinopathy is a broader descriptor for tendon pain and dysfunction that may not involve significant inflammation at all. The distinction matters because anti-inflammatory approaches that make sense for tendinitis may not be appropriate for tendinopathy, and loading strategies differ significantly between acute and chronic presentations.
The role of loading in tendon adaptation
The primary driver of tendon adaptation is mechanical load. Tendons respond to progressive tensile loading by remodeling collagen, increasing stiffness, and improving force transmission capacity. The challenge is that the loading stimulus needs to be progressive and well-timed: too little and tendons do not adapt; too much too fast and degenerative changes accumulate. This is why isometric training, slow heavy eccentrics, and heavy slow resistance protocols have become standard in tendinopathy management: they provide the mechanical stimulus for adaptation at intensities and velocities that painful tendons can tolerate.
What S&C coaches can do
The S&C coach is often the first to notice tendon issues because athletes mention them during training before they become significant enough to see a clinician. Early education on load management, progressive tendon loading, and the difference between discomfort that indicates adaptation and pain that indicates a problem worth addressing allows coaches to respond appropriately and refer when necessary.
Related terms
Isometric Training · Eccentric Training · Load Management · Return to Play (RTP)