·8 min read
Strength training for beginner runners: the minimum that works, core strength training included
Beginner core strength training and leg work for new runners: the minimum that works, two short sessions a week, and where they go so runs don't suffer.
If you've just started running, you don't need a lifting program. You need about 40 minutes a week of beginner core strength training and leg work, done consistently, placed on the right days. Squats, lunges, hip bridges, calf raises, a plank or two. That's the minimum that works, and it's far more than most new runners do.
The trap is the opposite of laziness. New runners discover strength training, download a 45-minute "runner's strength" video full of clamshells and burpees, do it twice, get sore, miss a run, and quit both. The goal here is smaller and smarter: a routine you can actually keep while your running is still new, whether you plan it yourself or let a smarter running app slot it into your week.
Why beginner runners should bother with strength training
Running is a lot of the same movement repeated thousands of times. Strength work gives your legs, hips and trunk more capacity to handle that repetition, and it makes you better at running, not just sturdier.
The research on experienced runners is encouraging. A systematic review of 24 studies in middle- and long-distance runners (Blagrove et al., 2018) found strength training generally improved running economy, time-trial performance and sprint performance, though not in every study, and body composition was not negatively impacted. The authors suggested two to three strength sessions a week. Those were runners with at least six months of experience, so for a true beginner, start with less and build.
It won't make you bulky. It isn't a promise that nothing will ever hurt, either. If something does hurt, see a professional, not a foam roller.
If you'd rather follow a set week than build one, a runner's strength program does exactly that. If you're building it yourself, the rest of this post is the minimum.
For the full case, including heavy lifting once you're ready, lifting for runners is the hub this post sits under.
The minimum that works: two short sessions a week
Here's the whole plan:
- Two sessions a week, 20–30 minutes each.
- Five or six exercises, two or three sets each.
- Bodyweight first. Add load only when the movement is clean and the sets feel easy.
- Stop each set with two or three good reps left. Not to failure. You're building a habit, not testing your limits.
That matches the "one or two short sessions a week" starting point in our hub on lifting for runners. As you get comfortable, the second session becomes non-negotiable and the loads start going up.
Session A
| Exercise | Sets × reps | Notes |
|---|---|---|
| Bodyweight or goblet squat | 2–3 × 8–12 | Sit down to a box if depth is hard |
| Reverse lunge | 2–3 × 6–8 each leg | Step back, not forward |
| Glute bridge | 2–3 × 10–12 | Squeeze at the top for a second |
| Standing calf raise | 2–3 × 10–15 | Slow, full range, off a step |
| Front plank | 2–3 × 20–40 seconds | Ribs down, glutes on |
Session B
| Exercise | Sets × reps | Notes |
|---|---|---|
| Step-up | 2–3 × 6–8 each leg | Knee-height box, drive through the top foot |
| Single-leg Romanian deadlift | 2–3 × 6–8 each leg | Hold onto something for balance at first |
| Single-leg calf raise | 2–3 × 8–12 each | The most underrated runner exercise |
| Side plank | 2–3 × 15–30 seconds each side | Hips high |
| Dead bug | 2–3 × 6–8 each side | Lower back stays flat on the floor |
Every one of these is on the list of the best strength exercises for runners in a beginner-friendly version. Squat, single-leg work, hinge, calves, trunk. Nothing exotic, nothing you'll need to relearn later.
Beginner core strength training: what actually counts
"Core" is the most abused word in running. It doesn't mean crunches until your stomach burns. For runners, the job of the trunk is to hold position while your legs do the work, especially when you're tired. That's why the core exercises above are mostly about resisting movement: planks resist sagging, side planks resist bending sideways, dead bugs resist your lower back arching while your arms and legs move.
There's limited but interesting research here. In a six-week study of recreational and competitive runners (Sato & Mokha, 2009), the core strength training group ran faster 5000 m times than the control group, though the training didn't significantly change ground reaction forces or lower-leg stability. The authors concluded core training may be an effective method for improving running performance. "May" is doing real work in that sentence, and it was a small study, so don't expect miracles from planks alone.
The practical version of beginner core strength training for runners:
- Front plank, side plank, dead bug. Two or three of these, two or three sets each, twice a week.
- Short and hard beats long and bored. A clean 30-second plank is better than a sagging three-minute one.
- Carries count. Once you have access to dumbbells, a farmer's or suitcase carry trains the trunk the way running uses it: upright and moving.
- Your legs are part of your core work. Single-leg exercises force the trunk and hips to stabilize. A step-up does more for a runner's "core" than a hundred crunches.
When to add weight
Bodyweight is a starting point, not a destination. Once you can do the top of the rep range on every set with clean form, make it harder:
- Add load: hold a dumbbell or kettlebell for squats, lunges, step-ups and single-leg RDLs.
- Slow it down: a three-second lowering phase makes light weights heavier.
- Go single-leg: calf raises and RDLs on one leg double the load without extra equipment.
After a few months, most runners benefit from heavier lifting with fewer reps. When you get there, the question of heavy versus light is covered in weight training for runners. Don't rush it. A clean bodyweight squat is worth more than a sloppy loaded one.
If you've never lifted at all and want a broader base first, a beginner's strength foundation covers the five movement patterns behind almost everything here.
How many sets for a beginner runner?
Two or three sets per exercise, five or six exercises, twice a week. That's plenty when you're new to both running and lifting. More volume isn't better if it leaves your legs too tired to run.
The general rule of how many sets per muscle group per workout applies once you're lifting seriously, but runners have a different constraint: the running is already loading your legs every week. Start low and add a set only when the current sessions feel easy.
Where strength goes in a beginner running week
Placement is where most new runners go wrong. They lift on whatever day is free, which turns out to be the day before their longest run.
The rules:
- Never hard leg work the day before your long run or any harder run.
- Lift on an easy-run day (run first, lift later) or a non-running day that isn't the day before a key run.
- Keep the day after a strength session easy. An easy run is fine. A hard one is a gamble while you're new.
A three-run beginner week with two strength sessions:
| Day | Run | Strength |
|---|---|---|
| Mon | Rest | Session A |
| Tue | Easy run | — |
| Wed | Rest | — |
| Thu | Easy run | Session B (after) |
| Fri | Rest | — |
| Sat | Long easy run | — |
| Sun | Rest or walk | — |
Once your running includes some faster work, intervals for distance runners become the hard session to protect, and the same rule applies: no heavy legs the day before.
Common beginner mistakes
- Doing too much in week one. Soreness that wrecks your next run is a sign the session was too big, not too good.
- Skipping the calves. Runners need strong calves. Bodyweight raises off a step are the start, not the finish.
- Endless crunches. Not useless, just not the trunk work running needs.
- Never progressing. If the same bodyweight session feels easy for a month, it's time for some load.
- Dropping it when running gets busy. Even one short session a week keeps the habit alive.
A note for new mothers
If you're returning to running after having a baby, the rules are different. Postpartum strength training starts with pelvic floor and deep trunk work, and the first step is checking with your doctor, midwife or a pelvic health physiotherapist before you begin.
How exrsz handles it
exrsz builds one periodized plan from your goal, schedule, level and equipment, so your strength sessions are planned around your runs instead of squeezed into whatever day is free. It keeps leg work away from your long run, adapts each week to how you actually trained, and reshuffles missed sessions.
FAQ
What is the best beginner core strength training for runners?
Front planks, side planks and dead bugs, two or three sets each, twice a week, plus single-leg exercises like step-ups. A small six-week study found core strength training improved 5000 m times in runners, though more research is needed.
How often should beginner runners do strength training?
Start with two short sessions a week. A systematic review of experienced runners suggested two to three sessions a week; beginners can build toward that.
Should beginner runners lift weights?
Eventually, yes. Start with bodyweight to learn the movements, then add load once you can do the top of your rep range cleanly. Heavier lifting comes after a few months.
Can strength training make me a faster runner?
It can. A review of 24 studies found strength training generally improved running economy and time-trial performance in distance runners, though not in every study.
Should I do strength training before or after running?
On a shared day, run first and lift later, especially while running is the priority. Keep heavy leg work away from the day before your long run.
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