Quick Answer
The best leg exercises for runners are squats, Bulgarian split squats, Romanian deadlifts, walking lunges, step-ups, glute bridges, eccentric calf raises, lateral band walks, single-leg Romanian deadlifts, and box jumps. Together they cover every muscle group running depends on — quads, glutes, hamstrings, calves, and hip stabilisers. Aim for two sessions per week after easy runs or on cross-training days, starting with bodyweight and adding load progressively over 4–6 weeks.
Why Leg Strength Matters for Runners
Running is a series of single-leg hops. Every stride demands balance, power absorption, and explosive push-off — all from one leg at a time. When the muscles responsible for those demands are underdeveloped, the load shifts to joints, tendons, and connective tissue. That’s how overuse injuries start.
Research consistently shows that runners who include strength training improve their running economy — meaning they use less energy at the same pace. Stronger muscles absorb impact more efficiently, reducing stress on the knees, hips, and Achilles. They also delay the point at which form deteriorates under fatigue, which is the difference between holding pace in the final 5 km and falling apart.
The key is choosing exercises that match the demands of running: compound movements, unilateral work, and some explosive training. The ten exercises below cover all three categories.
The 10 Best Leg Exercises for Runners
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| Exercise | Primary muscles | Running benefit | Sets × reps |
|---|---|---|---|
| Squats | Quads, glutes, hamstrings | Power, stride strength, knee stability | 3 × 8–12 |
| Bulgarian split squat | Quads, glutes, hip stabilisers | Single-leg strength, hip stability | 3 × 8–10 per leg |
| Romanian deadlift | Hamstrings, glutes, lower back | Posterior chain power, hip drive | 3 × 8–10 |
| Walking lunges | Quads, glutes, hamstrings | Stride mechanics, forward drive | 3 × 10–12 per leg |
| Step-ups | Quads, glutes | Hill strength, single-leg control | 3 × 10 per leg |
| Glute bridge / single-leg | Glutes, hamstrings, core | Hip extension, pelvic stability | 3 × 12–15 |
| Eccentric calf raises | Gastrocnemius, soleus | Push-off power, Achilles resilience | 3 × 12–15 |
| Lateral band walks | Glute medius, hip abductors | Knee alignment, IT band prevention | 3 × 15 per direction |
| Single-leg Romanian deadlift | Hamstrings, glutes, balance | Posterior chain, running balance | 3 × 8 per leg |
| Box jumps | Quads, glutes, calves | Explosive power, fast-twitch activation | 3 × 6–8 |
Exercise Breakdown
1. Squats
The squat is the foundation of any runner’s strength programme. It targets the quads, glutes, and hamstrings simultaneously — the three muscle groups most responsible for generating propulsive force in running. Stand with feet slightly wider than hip-width, send the hips back and down as if sitting in a chair, keep your chest tall and knees tracking over your toes. Drive through your heels to stand. Start with bodyweight, then add a barbell or goblet hold as strength develops. For runners, compound lower-body strength with exercises like squats has been shown to improve running economy in middle and long-distance athletes.
2. Bulgarian Split Squat
Often called the single best leg exercise for runners, the Bulgarian split squat builds the unilateral strength that running demands. Elevate your rear foot on a bench, lower your hips until the front thigh is parallel to the floor, then drive back up through the front heel. Because running is essentially a series of one-leg hops, training each leg independently exposes and corrects strength imbalances that bilateral squats can mask. Keep your torso upright and your front knee tracking over your toes. This exercise also builds hip stability, which protects against IT band and runner’s knee issues. For a detailed guide to hip strengthening exercises for runners, see the full breakdown on site.
3. Romanian Deadlift
The Romanian deadlift (RDL) trains the posterior chain — hamstrings, glutes, and lower back — through a hip hinge pattern that directly mirrors the drive phase of running. Hold a barbell or dumbbells at hip height, hinge forward keeping your back flat and the weights close to your legs, then drive the hips forward to stand. Strong hamstrings contribute to hip extension and reduce the knee flexion loads that cause muscle strains. Aim for a slow, controlled lowering phase of 3–4 seconds to maximise the eccentric stimulus.
4. Walking Lunges
Walking lunges replicate the forward stride pattern of running under load, making them one of the most directly transferable leg exercises for runners. They strengthen the quads, glutes, and hamstrings while also challenging hip flexor mobility and balance. Step forward, lower until both knees reach roughly 90 degrees, then step through rather than returning to start. Add dumbbells once bodyweight feels easy. Walking lunges are especially useful for runners who want to build leg strength without the spinal loading of a barbell squat. Pair them with a structured strength programme for runners to fit them into your weekly schedule.
5. Step-Ups
Step-ups build single-leg quad and glute strength in a controlled, low-impact way — ideal for runners who are newer to strength training or managing a niggly knee. Use a box or bench at knee height, drive through the elevated foot to stand fully upright, then lower with control. The step-up also builds the strength needed for climbing hills and stairs, which transfers directly to trail and road running. Focus on a slow, controlled lowering phase (3 seconds down) to maximise the eccentric load on the quad. For more targeted quad work, see the guide to quad exercises for runners.
6. Glute Bridge and Single-Leg Glute Bridge
The glute bridge is the most accessible posterior chain exercise for runners and requires no equipment. Lie on your back, knees bent, feet flat. Press through your heels to raise your hips until your body forms a straight line from shoulders to knees, then squeeze the glutes hard at the top before lowering with control. The single-leg variation increases the demand on each glute and challenges pelvic stability — critical for preventing the hip drop that causes knee and lower back issues on longer runs. Progress from bilateral to single-leg over 2–3 weeks once form is solid. For runners who struggle with glute activation, the guide to glute minimus exercises covers additional targeted drills.
7. Eccentric Calf Raises
Calf strength is chronically under-trained in runners. The calves — gastrocnemius and soleus — absorb and generate force on every single stride, and weak calves are a common precursor to Achilles tendinopathy, calf strains, and shin splints. Use a step edge: rise onto both toes, then shift to one foot and lower the heel slowly over 3–4 seconds below the step. The slow lowering (eccentric) phase builds the tendon resilience that running demands. Start with 3 × 15 on each leg, 2–3 times per week. For a full breakdown, see the guide to calf exercises for runners.
8. Lateral Band Walks
The gluteus medius is the hip abductor muscle responsible for keeping your pelvis level when one foot leaves the ground. When it’s weak, the hip drops on the unsupported side — a pattern called Trendelenburg gait — which increases strain on the IT band, knee, and lower back. Lateral band walks directly target this muscle. Place a resistance band just above the knees, take a slight squat position, and step sideways for 15 reps each direction. Keep your toes pointing forward throughout and avoid letting the knees cave. Two to three sets before your run as part of a warm-up can activate the glute medius before it matters most.
9. Single-Leg Romanian Deadlift
The single-leg RDL combines posterior chain strength with the balance and proprioception that trail and road running demand. Stand on one leg, hold a dumbbell in the opposite hand, and hinge forward at the hip while extending the free leg behind you. Keep the standing knee slightly bent and the back flat throughout. This exercise reveals balance deficits between legs — if one side wobbles significantly more than the other, that imbalance is likely showing up in your running form. It’s one of the most effective tools for improving single-leg stability and is well worth adding to your programme alongside the 10-week running strength programme.
10. Box Jumps
Once a base of strength is established, adding explosive plyometric work like box jumps trains the fast-twitch muscle fibres that generate powerful push-off and improve running economy. Start with a box 30–40 cm high. Begin in a partial squat, swing the arms, and jump onto the box landing softly in a partial squat to absorb force. Step down (don’t jump down) between reps. Box jumps should be performed when fresh — start a session with them rather than finishing. Limit volume to 3 × 6–8 reps and build height and load gradually. For newer runners, master step-ups before progressing to box jumps.
How to Fit Leg Exercises Into Your Running Week
The most effective approach is two sessions per week, each lasting 30–45 minutes. Place them after easy runs or on cross-training days — never before a key quality session like intervals or a long run. This preserves your legs for the running that drives the most fitness adaptation.
Session structure. A simple format that works well: start with 2–3 sets of the Bulgarian split squat or RDL (the most demanding movements), then follow with step-ups, lunges, or glute bridges, and finish with calf raises and band work. Keep rest periods to 60–90 seconds to maintain some metabolic demand.
Progression. Begin with bodyweight only for the first 2–3 weeks to establish movement quality. Add load (dumbbells, barbell, or resistance bands) when you can complete all sets with clean form. Aim to increase load or reps every 2–3 weeks — the same overload principle that applies to running. For more on progressive loading, the guide to overload in fitness explains how the principle works across training types.
Taper period. In the two to three weeks before a goal race, reduce the weight and number of sets. The goal shifts from building strength to maintaining it — keep movements familiar but stop introducing new exercises or heavy loads.
Common Mistakes Runners Make in the Gym
Skipping single-leg work. Bilateral squats build strength, but they allow a stronger leg to compensate for a weaker one. Because running is unilateral, single-leg exercises like the Bulgarian split squat and step-up are non-negotiable for runners who want balanced legs.
Neglecting the posterior chain. Most runners overdevelop their quads (from constant forward motion) while under-developing their hamstrings and glutes. RDLs, glute bridges, and single-leg RDLs redress that imbalance and reduce the risk of hamstring strains and hip drop.
Going too heavy too soon. Strength training for running is about quality of movement first, load second. Poor form under heavy load builds compensatory patterns that carry into your running. Master bodyweight before adding weight.
Doing strength work the day before a hard run. Heavy leg sessions create muscle damage that peaks 24–72 hours later. Scheduling a hard track session the morning after a heavy squat session is a recipe for a poor quality workout and elevated injury risk. Plan your week so strength days support rather than compete with your key runs. For a framework on how to structure the full week, see the guide to strength training for runners.
Muscles That Matter Most for Running
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| Muscle group | Role in running | Key exercises | Consequence of weakness |
|---|---|---|---|
| Glutes (max + med) | Hip extension, pelvic stability | Glute bridge, Bulgarian split squat, lateral band walks | Hip drop, knee valgus, IT band issues |
| Quadriceps | Knee extension, downhill control | Squats, step-ups, split squats | Patellofemoral pain, quad fatigue on descents |
| Hamstrings | Hip drive, knee flexion, deceleration | Romanian deadlift, single-leg RDL | Hamstring strains, reduced hip extension |
| Calves (gastroc + soleus) | Push-off power, impact absorption | Eccentric calf raises, bent-knee calf raises | Achilles tendinopathy, shin splints, calf strains |
| Hip abductors | Lateral pelvic control per stride | Lateral band walks, clamshells | IT band syndrome, hip flexor overload |
Build the Legs That Carry You Further
The ten exercises in this guide cover every muscle group that running depends on — from the glutes that drive your hips to the calves that spring you off the ground with every stride. You don’t need a full gym or hours of weekly training. Two focused sessions per week, built around compound movements and consistent progressive loading, is enough to make a measurable difference in how you run, how quickly you recover, and how often you stay injured.
Start with the movements you’re least familiar with using bodyweight only. Add load progressively. Keep the exercises close to your running schedule but not competing with your hardest sessions. Over 8–12 weeks, most runners notice stronger finishes, less late-race form breakdown, and fewer of the niggles that interrupt training blocks. For non-weight-bearing alternatives during injury or recovery, the guide to recovery runs covers how to maintain fitness without loading sore legs.
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FAQ: Leg Exercises for Runners
What are the best leg exercises for runners?
The best leg exercises for runners are squats, Bulgarian split squats, Romanian deadlifts, walking lunges, step-ups, glute bridges, eccentric calf raises, lateral band walks, single-leg RDLs, and box jumps. These cover the quads, glutes, hamstrings, calves, and hip stabilisers — all the muscle groups that running relies on.
How often should runners do leg strength training?
Two sessions per week is the sweet spot for most runners. Place them after easy runs or on cross-training days. Avoid heavy leg training within 24–48 hours of a key quality session or long run. Reduce volume but keep sessions consistent during race taper.
Will leg exercises make runners too bulky?
No. Runners who strength train 2–3 times per week with moderate loads while maintaining high mileage do not build significant muscle bulk. The caloric demands of running and the moderate rep ranges used in runner-specific strength work are not conducive to hypertrophy.
What is the single best leg exercise for runners?
The Bulgarian split squat is widely recommended as the most effective single exercise for runners because it builds unilateral leg strength, improves hip and knee stability, and mirrors the single-leg demands of running. Squats and Romanian deadlifts are close seconds for overall leg development.
Can leg exercises improve running speed?
Yes. Strength training improves running economy — the energy cost of running at a given pace. Plyometric work like box jumps develops explosive power that translates to faster ground contact times and a stronger finish-line kick. Runners who add consistent strength work typically see improvements within 8–12 weeks.
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