This is education, not medical advice. If you have persistent tendon pain — particularly with swelling, night pain, or pain that does not respond to load management within two weeks — see a sports physiotherapist or sports medicine doctor. The information below draws on published tendon research, including the work of Jill Cook and Keith Baar, and the protocols used inside the Roadman coaching programme. It is not a substitute for individual assessment.
You know the moment. You've been building fitness steadily for weeks, the legs feel strong, the numbers are tracking in the right direction — and then something in your knee or your Achilles starts complaining. Not a dramatic blowout. A low hum of discomfort that wasn't there last month. You back off. It settles. You push again. It returns. The cycle repeats until you're either resting too much to make progress or riding through something that's slowly getting worse.
If you're over 40 and this sounds familiar, it probably isn't your muscles. It's your tendons. And that distinction matters more than most riders realise.
Why tendons matter more than muscles after 40
Muscle tissue is relatively forgiving. It has excellent blood supply, it responds to training within weeks, and it heals quickly when damaged. Tendons — the dense, fibrous cords that connect muscle to bone and transmit all the force your muscles generate — are a different proposition entirely.
Tendons adapt to load roughly five to ten times slower than muscle. Your quadriceps can get measurably stronger in two to three weeks of structured work. The patellar tendon connecting those quadriceps to your shinbone needs months to remodel in response to the same increased demand. In a young athlete, this mismatch is manageable because tendon collagen turnover is still reasonably active. After 40, the gap widens.
Here's where it gets really interesting — and where the problem for masters cyclists becomes specific. After 40, tendon collagen turnover slows. The cross-links within the tendon's collagen matrix become stiffer and less compliant. Blood supply, already limited compared to muscle, declines further. The tendon's ability to sense load and respond with appropriate remodelling — what researchers call mechanotransduction — becomes less efficient.
The practical result: your muscles improve at one rate. Your tendons improve at a much slower rate. And the area between those two rates is where overuse injuries live.
This is not a reason to stop training hard. It is a reason to understand the rate-limiting tissue in your body and respect its timeline. Most of the tendon problems I see in the community are riders who trained their muscles intelligently and their tendons not at all.
Tendon biology: what you need to know
You don't need a degree in biomechanics, but understanding three facts about tendon tissue changes how you think about injury and prevention.
Tendons need load to stay healthy. This is counterintuitive for riders who've been told to rest when something hurts. Tendons are mechanosensitive — they respond to appropriate mechanical loading by remodelling and strengthening, and they deteriorate when unloaded. Complete rest is almost never the right long-term answer for a tendon problem. Jill Cook, the tendon researcher whose work has reshaped how physiotherapists treat tendinopathy worldwide, puts it plainly: tendons need load, and removing load makes them worse over time.
Tendons have poor blood supply. Compared to muscle, tendons receive a fraction of the blood flow. This is why they heal slowly, why they respond to training slowly, and why the "just rest it" approach that works for a muscle strain doesn't work for a tendon. The Achilles, in particular, has a poorly vascularised zone a few centimetres above its insertion at the heel — precisely where tendinopathy most commonly develops.
Tendons stiffen with age. The collagen fibres within a tendon are arranged in parallel bundles, and the cross-links between those fibres accumulate and stiffen over decades. A stiffer tendon is not necessarily a weaker tendon — in some ways stiffness aids force transmission — but it is a less adaptable one, less able to tolerate sudden changes in load, and slower to remodel when asked to do something new.
These three facts explain why a 45-year-old cyclist can go from feeling fine to having a chronic tendon issue in a way that seems disproportionate to the training they did. The training wasn't necessarily wrong. The tendon's timeline for adaptation was simply different from the muscle's timeline, and nobody accounted for it.
The three most common tendon problems in cycling
Cycling is a low-impact sport, and compared to running, it is relatively kind to tendons. But "relatively" is doing work in that sentence. Repetitive loading through a fixed range of motion, thousands of pedal revolutions per ride, combined with the age-related changes above, means three tendon areas show up in the community over and over.
Patellar tendinopathy
The patellar tendon connects your quadriceps (via the kneecap) to the top of your shinbone. Every pedal stroke loads it. Pain is typically felt at the bottom of the kneecap, worse during and after riding, and worse with sustained climbing efforts where pedal force is high and cadence drops. Saddle height that's too low increases patellar tendon loading per stroke. Low cadence, high-gear grinding does the same. It is the most common tendon complaint I hear from masters cyclists, and it is fixable in the vast majority of cases.
Achilles tendinopathy
The Achilles connects your calf muscles to your heel bone. Cycling is generally gentle on the Achilles compared to running, but it is not immune — riders who drop the heel aggressively through the bottom of the pedal stroke, who ride with a saddle set too low (increasing ankle dorsiflexion), or who add sudden volumes of standing climbing put more demand through the Achilles than seated, cadence-controlled riding does. Pain is typically felt a few centimetres above the heel or right at the heel bone insertion, often worst first thing in the morning.
IT band syndrome (lateral knee pain)
The iliotibial band is technically a tendon-like structure — a thick band of fascia running from the hip to the outside of the knee. IT band friction syndrome causes pain at the outer knee, often worsening during longer rides. In cycling, it is frequently linked to cleat rotation, stance width (Q-factor), or saddle height set too high, all of which alter the tracking of the IT band across the lateral femoral condyle with each pedal stroke. It responds well to addressing the bike fit cause and to hip and glute strengthening, poorly to foam rolling alone.
Jill Cook's continuum model: why "rest and stretch" fails
Jill Cook's tendon continuum model, published over the past two decades and now the standard framework used by sports physiotherapists globally, changed the way clinicians think about tendon problems. It matters for you because it explains why the most common advice — rest it, stretch it, wait — often makes things worse.
Cook describes three stages that tendon pathology can progress through.
Reactive tendinopathy
This is the acute response to a sudden spike in load. The tendon swells, becomes painful, and stiffens — but structurally, it hasn't been damaged. Think of it as the tendon's alarm system going off. It is a short-term, reversible response. A rider who jumps their weekly training hours by 30 per cent, or who adds three hill repeats they haven't done in months, and wakes up with a sore patellar tendon two days later — that is a reactive tendon.
The fix here is load management, not complete rest. Reduce the offending load, keep riding at tolerable levels, and the tendon settles within days to a couple of weeks. This stage responds well to isometric loading for pain relief (more on that below) and badly to aggressive stretching, which compresses the swollen tendon and adds irritation.
Tendon dysrepair
If the reactive tendon is repeatedly overloaded without adequate recovery, it moves into dysrepair. At this stage, the collagen matrix within the tendon begins to disorganise. There's increased water content, some vascular ingrowth (new, disorganised blood vessels growing into the tendon), and early structural change. The tendon is thickened and may stay painful for weeks rather than days.
This stage is still reversible with the right loading programme, but it takes longer — typically three to six months of progressive, structured loading. Rest alone at this stage is actively counterproductive, because the tendon needs mechanical stimulus to reorganise its collagen. Sitting on the sofa waiting for it to heal is how dysrepair becomes degenerative.
Degenerative tendinopathy
The final stage involves permanent structural change — areas of the tendon where the collagen matrix has broken down and been replaced by disorganised tissue, sometimes with calcification. This is the stage that shows up on imaging as a "worn" or "degenerative" tendon. It sounds alarming, and it can be — but here's the good news: degenerative tendons can still be pain-free and functionally strong. Not every degenerative tendon hurts, and many athletes with degenerative changes on imaging perform at a high level. The goal at this stage shifts from "fix the tendon" to "build the capacity of the healthy tissue around the degenerative area." That still requires progressive loading, not rest.
The critical insight from Cook's model is that the treatment is different at each stage. Telling a reactive tendon to stretch is counterproductive. Telling a dysrepair tendon to rest is counterproductive. And telling a degenerative tendon that it's "done" is simply wrong. Most of the frustration riders feel with tendon problems comes from applying the wrong treatment at the wrong stage.
Why rest alone does not fix tendinopathy
This point deserves its own section because it runs against what most people instinctively do.
When something hurts, rest feels logical. And for acute muscle injuries, it often is. But tendons are not muscles. They respond to load by remodelling. Remove the load, and you remove the stimulus for repair. A tendon that's rested for four weeks doesn't come back stronger — it comes back deconditioned, with lower load tolerance than it had before, which means it's more likely to flare when you return to riding.
The evidence on this is strong and consistent. Progressive loading — starting at a level the tendon tolerates and gradually increasing over weeks and months — is the gold-standard treatment for tendinopathy at every stage. Not rest. Not anti-inflammatories. Not cortisone injections (which provide short-term relief but weaken tendon tissue and worsen outcomes at six to twelve months). Loading.
The practical sequence for most tendon problems looks like this:
- Isometrics — sustained holds at a fixed joint angle. Pain-relieving and safe as a starting point.
- Slow heavy resistance — controlled, loaded movements through range, at slow speeds. This is where most of the tendon remodelling happens.
- Faster loading — increasing the speed of the movement to build tendon stiffness and resilience.
- Sport-specific loading — returning to the demands of riding, with graduated volume and intensity.
This progression typically runs twelve to sixteen weeks for a dysrepair-stage tendon. It can be shorter for reactive tendons caught early, longer for chronic or degenerative presentations. The key is that it's progressive and consistent — not the two-week burst of exercises that stops the moment the pain settles.
Isometric loading: your first-line pain management tool
Isometric exercises — holding a position under load without moving the joint — are one of the most useful interventions in the tendon toolbox, and they're often the first thing a good sports physio will prescribe.
Research, including work from Rio and colleagues, has shown that isometric holds can reduce tendon pain by up to 70 per cent within a single session. The mechanism isn't fully understood, but appears to involve pain-inhibiting effects at the spinal cord level — the sustained contraction essentially turns down the volume on the tendon's pain signal.
For the three common cycling tendons:
Patellar tendon — the wall sit. Back against a wall, knees bent to roughly 60 degrees, hold for 30-45 seconds. Five repetitions, with a minute's rest between. The load should be moderate — uncomfortable in the quadriceps but not reproducing sharp tendon pain. If bodyweight is too much, start with a shallower knee bend. Do this before riding and you'll often find the tendon settles during the ride.
Achilles tendon — the single-leg calf raise hold. Rise onto the ball of one foot and hold the top position for 30-45 seconds. Five repetitions per side. If single-leg is too demanding, start on both feet. The hold at the top — with the calf and Achilles under sustained tension — is what produces the pain-modulating effect.
IT band — the side-lying leg hold. Lie on your side, lift the top leg to roughly 30 degrees, and hold for 30-45 seconds. Five repetitions. This loads the hip abductors — the glute medius and minimus — which control IT band tension. It's not a direct IT band exercise, but strengthening its proximal control is what makes the difference at the knee.
These are not a cure. They're pain management and an entry point into the progressive loading sequence. But they're available to you right now, at home, with no equipment, and they work remarkably well for most riders.
When stretching helps and when it makes things worse
Stretching is one of the most misapplied interventions in tendon management. The instinct to stretch a painful area is strong, and for some conditions it's appropriate. For reactive tendinopathy, it is actively harmful.
Here's the mechanism. When you stretch a tendon, you compress it — particularly at the point where it wraps around or inserts into bone. A reactive tendon is already irritated and swollen. Compressing it further increases that irritation. Jill Cook has been clear on this for years: do not stretch a reactive tendon.
Where stretching does help is in the muscles surrounding the tendon. Tight quadriceps increase the baseline tension running through the patellar tendon. Tight calves do the same for the Achilles. Tight hip flexors and a weak glute complex alter the loading patterns that feed into IT band issues. Stretching these muscles — once the acute tendon irritation has settled — reduces the resting tension on the tendon and can be a genuine part of long-term management.
The distinction: stretch the muscles, not the tendon. And only when the reactive phase has passed. During an acute flare, isometrics and load management are the right tools. Stretching can wait.
For cyclists specifically, this means your post-ride stretching routine is still valuable — but if you have an acutely painful tendon, skip the stretches that specifically load that tendon (deep quad stretches for patellar issues, aggressive calf stretches for Achilles issues) until the acute pain has settled, typically one to two weeks.
Prevention: what actually works
Prevention of tendon problems in masters cyclists comes down to four things. None of them are complicated. All of them require consistency.
Gradual load increases
The single most common trigger for tendinopathy is a sudden spike in training load. This is true across sports, across ages, and across tendons. Your muscles can absorb a 20-30 per cent jump in weekly hours. Your tendons often cannot. The research on acute-to-chronic workload ratios supports what experienced coaches have always known: build slowly, particularly after a break.
For practical purposes: increase weekly training stress by no more than 10 per cent per week. After time off the bike — illness, holiday, a break — start at 50-60 per cent of your previous load and build back over three to four weeks. The tendons don't care that you "used to ride that much." They care about what they've been doing recently.
Strength work for tendons, not just muscles
Your tendons respond to load. If the only load they receive is the repetitive, moderate-force, limited-range demand of pedalling, they adapt to exactly that — and nothing more. Off-bike strength work that loads the tendons through a fuller range and at higher forces builds capacity that protects them when cycling load increases.
The exercises that matter most for the three cycling-relevant tendons:
Patellar tendon: Single-leg step-downs from a 15-20cm step (3 seconds down, 3 seconds up). Single-leg leg press if you have access to a machine. Step-ups with a light dumbbell held at chest height. Wall sits and Spanish squats with a band behind the knees. All bodyweight or light load, all controlled, all progressively built over weeks.
Achilles tendon: Calf raises — straight-leg (targets the gastrocnemius) and bent-knee (targets the soleus, which also loads the Achilles). Start double-leg, progress to single-leg, progress by adding load with a light dumbbell or a weighted backpack. Slow tempo: 3 seconds up, 3 seconds down. Three sets of 12-15, three times per week.
IT band/lateral knee: Banded side-walks, single-leg Romanian deadlifts with a light dumbbell, side-lying hip abduction holds, banded clamshells. The IT band itself doesn't strengthen — but the hip musculature that controls it does, and weak hip abductors are the single most consistent finding in riders with IT band issues.
Two to three sessions per week, 15-20 minutes each, year-round. Not just when something hurts.
Adequate recovery
Tendons remodel during rest, not during loading. If your training schedule doesn't include genuine recovery days — not active recovery rides, actual rest — your tendons never get the remodelling window they need. This becomes more important after 40, because the remodelling process slows with age. What worked as a rest day at 30 might need to be two days at 50. Listen to morning stiffness as a signal: if your tendons are stiff and uncomfortable when you first get out of bed, your recovery is insufficient for your current load.
The collagen supplementation protocol
This is one of the few supplement protocols with genuine evidence behind it for tendon health specifically. Keith Baar's research group at UC Davis demonstrated that 15g of gelatin (or hydrolysed collagen) combined with 50mg of vitamin C, taken 30-60 minutes before a short bout of loading exercise (6-10 minutes of the relevant exercises, not your main training session), increased markers of collagen synthesis — specifically the production of the amino-terminal propeptide of type I collagen, which is a direct measure of collagen being laid down.
The protocol is simple: dissolve 15g of unflavoured gelatin (or take an equivalent hydrolysed collagen supplement) with 50mg of vitamin C in warm water. Drink it 30-60 minutes before your prehab or strength session. Not before your ride — before the specific tendon-loading exercises. The vitamin C is essential because it's a required co-factor in collagen synthesis; without it, the gelatin alone is less effective.
Is this a miracle fix? No. But it is one of the very few supplements with a plausible biochemical mechanism and peer-reviewed evidence supporting its use for tendons. Many professional cycling teams and sports medicine departments now include it as a standard part of their injury prevention and rehabilitation protocols.
When to see a physiotherapist vs when to self-manage
Self-management is appropriate when:
- Pain is mild (below 3 out of 10) and predictable
- Pain settles within 24 hours after the aggravating activity
- You can identify a clear trigger (load spike, bike fit change, new shoes)
- The issue is recent (less than four weeks)
- Isometric loading reduces the pain
See a physiotherapist when:
- Pain is moderate to severe (above 5 out of 10) or increasing week to week
- Pain persists for more than 24 hours after riding
- You notice swelling around the tendon
- Morning stiffness in the tendon lasts more than 30 minutes
- Pain wakes you at night
- The problem has been present for more than four weeks without improving
- You're unsure which stage of the continuum you're in
The value of a good sports physio for tendon problems is substantial. They can identify the stage, rule out other causes of your pain, prescribe the right loading programme for your specific presentation, and monitor your progression over the weeks and months that tendon rehab takes. This is not a condition where guessing for six months is productive. A physio who understands tendon pathology — ideally one who works with athletes or cyclists — will save you time and frustration.
The exercises that protect your tendons
Here is the year-round prehab programme I recommend for the community. Fifteen to twenty minutes, two to three times per week. No gym required. No heavy compound lifts — everything is bodyweight, bands, or light dumbbells.
For the patellar tendon:
- Single-leg step-downs: 3 x 8-10 per side, slow tempo (3 seconds down, 3 seconds up)
- Wall sit holds: 3 x 30-45 seconds
- Spanish squat with resistance band: 3 x 10, slow and controlled
For the Achilles tendon:
- Single-leg calf raises (straight leg): 3 x 12-15 per side, slow tempo
- Single-leg calf raises (bent knee): 3 x 12-15 per side, slow tempo
- Calf raise holds at top: 3 x 30-45 seconds per side
For the IT band and lateral knee:
- Banded side-walks: 3 x 15 steps each direction
- Side-lying hip abduction holds: 3 x 30 seconds per side
- Single-leg Romanian deadlift with light dumbbell: 3 x 8 per side
General tendon health:
- Copenhagen adductor holds (modified, with bent knee): 3 x 15-20 seconds per side
- Single-leg balance on a cushion: 3 x 30 seconds per side
Progress by adding repetitions first, then load (a light dumbbell, a resistance band with more tension, a weighted backpack for calf raises). The tempo matters more than the load — slow, controlled movements load the tendon through its full remodelling cycle in a way that fast, bouncy movements do not.
Putting it together
Tendon problems in masters cyclists are common, predictable, and in the vast majority of cases, preventable. The biology is working against you after 40 — slower collagen turnover, stiffer cross-links, reduced blood supply — but the interventions are simple and available to everyone.
Build training load gradually. Do 15-20 minutes of tendon-specific strength work two to three times per week, year-round. Use isometrics as your first response when something starts talking to you. Know when to stretch and when not to. Consider the gelatin and vitamin C protocol before your prehab sessions. And know when to see a physio rather than guessing your way through months of a problem that's not improving.
Your tendons are not as resilient as they were at 25. That's biology, not failure. But they are responsive to the right kind of attention, at the right time, in the right dose. The riders who understand this — who treat tendon health as a year-round practice rather than a reaction to pain — are the ones still riding strong into their 50s, 60s, and beyond.
If you want to discuss tendon management, share what's worked for you, or get input from other masters riders dealing with the same issues, the Roadman community on Skool is where that conversation happens daily. Questions about specific tendon problems, prehab routines, physio recommendations — it's all in there.