Strength and Conditioning for Runners

November 12th 2026

EOGHAN MCGREGOR

Everyone trains for the finish line. Getting to the start line in one piece is the harder part.

The long runs are in the calendar and the mileage will climb every week. But if running is the only thing in your plan, there’s a gap, and it usually shows up mid-block as a sore shin, a grumbling knee or an Achilles that won’t settle.

Strength and conditioning for runners closes that gap. It builds the muscle that absorbs every stride, holds your form together when you’re tired and keeps the niggles from ending your block early. Here’s how to fit it in, whether you’re training for a half or a full marathon.

More miles means more risk

As your mileage builds week on week, so does the load going through your feet, ankles, knees and hips. Running builds your engine, but on its own it doesn’t build much strength.

So the miles keep climbing while the muscles supporting them stay the same, or get weaker as fatigue builds. That’s usually when things go wrong: a rolled ankle on a kerb, plantar fasciitis, shin splints or a knee that starts complaining at 15km.

These problems tend to show up mid-block, just as the long runs get serious. Stronger calves, hips and glutes give your joints far more support. They also keep your stride efficient late in a run, so you waste less energy and your aerobic fitness goes further.

Train your whole body, not just your legs

It’s easy to assume runners only need to train legs. Your core holds your posture together at 30km, and your upper back and shoulders keep your arms driving when your legs start to fade.

Training legs alone can build imbalances that cause problems of their own. The goal isn’t to train like a bodybuilder. It’s to build a body that holds up for the whole race.

That’s why METHOD is full-body. On the strength side, you’ll squat, hinge, press and pull. On the conditioning side, bikes and rowers build your aerobic fitness without the pounding of extra miles.

Training for a half marathon

Most half marathon plans run for 10-12 weeks. METHOD runs in eight-week blocks, so one block covers your build and leaves the final weeks for your taper.

Halves are run faster than marathons, and that speed puts more force through your calves and Achilles with every stride. Two strength sessions a week tends to work well. Do them after an easy run, and keep them away from the day before your speed session or long run.

Training for a full marathon

A marathon block usually runs for 16-18 weeks, which is two METHOD blocks back to back. The retest at the end of the first block shows you exactly how much stronger you’ve got.

The early weeks are where you build strength, so lift twice a week and push your numbers. Once your long runs pass 28km, drop to one session, or keep two and go lighter. In the two-week taper, the point isn’t to get stronger. It’s to keep ticking over and arrive at the start line fresh.

A half marathon or full marathon training week should look something like this:

Day	Session
Monday	Rest
Tuesday	Easy run + METHOD
Wednesday	Rest or easy run
Thursday	Intervals or tempo run
Friday	METHOD
Saturday	Rest
Sunday	Long run

If you’re already following a plan on an app like Runna, you can add your METHOD class days when you set up your training plan in the app.

Hilly races need stronger legs

If your race has serious climbs, strength work becomes even more important. Hills ask far more of your quads, glutes and calves, and the downhills can be harder on your legs than the climbs.

Boston is the famous one. Its early downhills hammer your quads before a run of climbs around mile 20, just when your legs are already tired.

Dublin doesn’t let you off either. The climb along Clonskeagh and Roebuck Roads arrives around 35km, right when your legs have the least left.

Weak legs on a hilly course can lead to injury on the day or in the weeks of hill training beforehand. None of this replaces a physio if something already hurts, but building strength early gives you the best chance of getting to race day in one piece.