Strength Training for Runners: The Sessions That Matter

For most recreational runners, two short strength sessions a week of genuinely heavy, low-rep work on a handful of lifts does more good than any number of light circuits. The sessions that matter are built around a squat or split squat, a hip hinge, heavy calf work, and a little trunk and upper-body work, kept to 40 to 50 minutes and placed so they do not ruin your key runs. Lift heavy enough that the last couple of reps are hard, keep the volume modest, and put the hard lifting on your hard running days so your easy days stay easy.

What strength work does for a runner

Running is thousands of small, single-leg landings. Each one asks your calves, quads, hips and trunk to absorb and return force. Stronger tissues tolerate that load better, and a stronger runner usually uses less of their capacity on each stride. Heavy strength training is widely used in endurance sport to improve running economy and to build the robustness that keeps you training through a block rather than stopping and starting.

What it does not do is replace running. It is a supplement, and the dose should be just enough to produce adaptation without stealing from the miles. That is the whole art of it.

The four movements worth your time

You can build a very effective runner’s programme from four patterns. Variations exist for each, depending on experience and the kit available.

1. A squat or split squat

Trains the quads and glutes, which control knee bend on landing. A back squat or front squat works well for experienced lifters. For everyone else, a rear-foot-elevated split squat is hard to beat: it is single-leg, like running, and needs less load for a big training effect. The setup is covered in our Bulgarian split squat guide.

2. A hip hinge

A Romanian deadlift or trap-bar deadlift builds the hamstrings and glutes, which drive you forward and help protect the back of the thigh during faster running.

3. Heavy calf work

The calf and Achilles complex absorbs a large share of load in every stride and is often the least trained part of a runner. Do both straight-knee calf raises (standing) and bent-knee raises (seated or with knees bent) so both main calf muscles get work. Heavy means a dumbbell or loaded bar, slow lowering, and sets that are genuinely difficult by rep 10.

4. Trunk and upper body

Not crunches. Carries, side planks, a cable anti-rotation press and a row of some kind. These help you hold posture late in a long run and balance the forward-dominant shape most of us spend all day in.

How heavy, how many, how often

This is where runners most often go wrong, usually by lifting too light for too many reps. Fifteen to twenty reps with a light dumbbell is muscular endurance, which you already get from running. The gap you want to fill is strength.

Phase	Sessions per week	Sets and reps (main lifts)	Effort
First 4 to 6 weeks of lifting	2	3 x 8 to 10	2 to 3 reps in reserve, learning technique
Off-season or base building	2	3 to 4 x 4 to 6	1 to 2 reps in reserve
Race build	1 to 2	2 to 3 x 3 to 5	Heavy but brief, never to failure
Last 7 to 10 days before a race	0 to 1	1 to 2 light sets	Easy, just to keep the pattern

Rest two to three minutes between heavy sets. The rest is what lets you lift heavily enough for it to count, and it keeps the session from turning into another cardio workout.

Expect some extra leg fatigue during the first three or four weeks of starting. That usually settles as your body adapts to the new load. Keep the first block deliberately conservative.

Where strength sessions go in a running week

The common advice is “keep hard days hard and easy days easy”. In practice that usually means lifting on the same day as a quality run, ideally a few hours after it, so you get a full easy day or rest day before the next demanding session. A sample week for someone running four times:

1. Monday: rest or easy walk.
2. Tuesday: intervals in the morning, strength in the evening.
3. Wednesday: easy run.
4. Thursday: tempo run, short strength session later.
5. Friday: rest.
6. Saturday: easy run.
7. Sunday: long run.

Avoid heavy lower-body lifting in the 48 hours before your long run or a key session. If you only have time for one place to train, lift after running rather than before, so the run gets fresh legs. Our post on cardio and weights on the same day covers the trade-offs in more detail.

A 45-minute session you could use tomorrow

1. Warm-up, 8 minutes: easy air bike or brisk walk, then leg swings, bodyweight split squats and calf raises.
2. Rear-foot-elevated split squat: 3 sets of 6 each leg.
3. Romanian deadlift: 3 sets of 6.
4. Standing single-leg calf raise with dumbbell: 3 sets of 8 to 10 each leg, 3 seconds down.
5. Bent-knee calf raise: 2 sets of 12.
6. Seated cable row paired with a side plank: 3 rounds.

That is it. No burpees, no box-jump finishers. Plyometrics have a place for some runners, but only after a few months of solid strength work and with careful dosing.

Mistakes that leave your legs flat

• Turning lifting into conditioning. Short rests and high reps make you tired without making you strong.
• Starting heavy in race season. Introduce strength in a base or off-season block, then maintain it.
• Dropping it in the final weeks. Strength fades over a few weeks of nothing. A short, light maintenance session keeps it.
• Ignoring calves. They are usually the cheapest gain available.
• Skipping single-leg work. Running happens on one leg at a time.

Training for a marathon specifically raises its own questions about what to keep and drop, which we answer in gym work during marathon training.

Is it worth having a coach for this?

For experienced lifters, maybe not. For runners new to heavy lifting, a few coached sessions are often what makes the difference between a safe, useful programme and a sore one. Technique on split squats and hinges is where most people need eyes on them, and loads need judging against your running week. That is the kind of planning we do in private personal training sessions in Highgate, with early morning and evening slots that fit around running. The basement studio at The Highgate House has the squat rack, dumbbells and cable station a runner needs, and Highgate Wood and the Parkland Walk are close by for the miles.

Check with your GP or a physiotherapist before starting if you have a current running injury, recurring pain in the same spot, or a heart condition.

Questions we get asked

Will lifting weights make me heavier and slower?

Not at this dose. Two sessions of low-rep strength work alongside regular running is not enough volume to add much muscle mass. Most runners get stronger without much change on the scales.

Can I just do bodyweight exercises?

To start, yes. Bodyweight soon stops being heavy enough for strength gains, though, especially for calves and hips. Load is what makes the difference, and it is where a coach in Highgate can help you judge how much.

What if I only have time for one session a week?

One heavy session is far better than none, and is often enough to maintain strength once you have built it.

Should I lift the day before a parkrun?

Upper body and trunk, fine. Heavy legs, better two days before or after.

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