Hill sprints: the workout runners and lifters both need

Hill sprints are short, hard efforts up a steep hill: 8 to 10 seconds of fast, powerful running, then a slow walk back down and a full recovery before the next one. Six of them take about 15 minutes, leave you out of breath for a minute, and don't wreck your week.

That combination is why they suit both runners and lifters. Runners get speed and power without the pounding of flat-out sprinting. Lifters get something that looks a lot like a plyometric session with a view. This guide covers how to do hill sprints, what they do and don't do, how to run them on a treadmill, and where they fit in a week, whether you plan it yourself or use a plan that moves your runs when life happens.

What are hill sprints?

A hill sprint is a short, near-maximal uphill effort with full recovery. The key features:

• ›Short. 8–10 seconds to start, up to about 15 seconds later on.
• ›Steep. A clearly noticeable gradient, steep enough that you have to drive your knees and arms.
• ›Hard but controlled. Fast and powerful, roughly 9 out of 10 effort, not a flailing all-out lunge.
• ›Full recovery. Walk back down and rest until you feel ready, usually 1.5–3 minutes.

Because the reps are so short and the rests so long, hill sprints train power and speed more than fitness. They're closer to running sprint drills than to a hard interval session.

If you're brand new to exercise and starting with a simple beginner program, wait a few weeks before adding hill sprints. Build the habit of running first; short sprints come after a base of easy running and some basic strength work.

Hill sprints vs hill repeats

They get confused constantly. They're different sessions.

Longer efforts belong to running hill workouts more broadly: repeats, rolling routes and hilly long runs.

Do hill sprints make you faster?

They can, especially when you've never done any fast running before. The evidence is decent for uphill interval work and promising for short uphill sprints, though most of it isn't in recreational runners doing exactly 8-second hill sprints.

The evidence so far:

• ›Uphill intervals improved running economy and a 5 km time trial. In well-trained runners doing six weeks of different uphill interval programs, the mean 5 km time-trial improvement across all programs was 2.0%, and the highest-intensity program was best for running economy, improving it by 2.4% (Barnes et al., 2013).
• ›Uphill and flat intervals both worked. In well-trained distance runners, six weeks of uphill or level-grade interval training both improved how long they could run at the speed linked to VO2 max (Ferley, Osborn and Vukovich, 2013).
• ›Short uphill sprints improved sprint speed in team-sport athletes. In semiprofessional field hockey players, a four-week program of six uphill sprint sessions improved straight-line sprint speed by about 3% and maximal sprint speed by 12.1%, with no change in the control group (Jakeman, McMullan and Babraj, 2016). Fourteen players in total, so read it as encouraging rather than definitive.
• ›Uphill alone isn't magic for sprint speed. A 2024 meta-analysis found combined uphill-downhill sprinting improved sprint performance more than flat sprinting, while resisted methods, a group that included uphill sprinting, weren't clearly better than flat sprinting (Hamad, Alcaraz and de Villarreal, 2024).

The fair summary: hill sprints are a good, low-cost way to add power and speed work to a running week. They don't replace easy volume or harder aerobic sessions. They complement them.

How to do hill sprints

Find the right hill

A steep, smooth stretch you can sprint up for 10–15 seconds with good footing. Grass or a quiet path is ideal. Avoid anything so steep you're scrambling, or so shallow it feels like flat sprinting.

Warm up properly

Short sprints need a real warm-up. Use a normal warmup for running: 10–15 minutes easy, a few drills like the A skip, then two or three strides on the flat. Never sprint cold.

Run the reps

1. ›Start from a jog or a standing start at the bottom.
2. ›Drive hard: knees up, arms pumping, tall posture, slight lean into the hill from the ankles.
3. ›Run 8–10 seconds. Count steps if you like; it's a few dozen, a rounding error next to how many strides are in a mile.
4. ›Stop, walk back down, and rest until you feel fully recovered.
5. ›Repeat.

Progress slowly

Stop the session when the reps lose snap. Ten sharp seconds beats fifteen sluggish ones.

Cool down

Then jog easy for five to ten minutes. That's all cool down running needs to be after a session this short.

Hill sprints for lifters

If you lift, hill sprints fit unusually well into your week.

• ›They're short and explosive, like the jumps you'd put at the start of a leg session.
• ›The hill makes them gentler on impact. In a lab study of uphill running, normal impact force peaks were smaller than on the level and disappeared entirely at a 9° incline, while propulsive forces increased (Gottschall and Kram, 2005). That was steady running at 3 m/s, not sprinting, but it explains why coaches like hills for fast work.
• ›Explosive work has a track record in runners. In well-trained endurance athletes, replacing part of their training with explosive-strength work for nine weeks improved 5 km time and running economy without changes in VO2 max (Paavolainen et al., 1999). That study used explosive strength training, not hill sprints specifically, but it's the same family of work.

Where to put them:

• ›Before a lower-body lifting session, as the power part of the warm-up. Keep it to 4–6 reps.
• ›After an easy run, in place of strides once a week.
• ›Not the day after heavy squats. Tired legs make sloppy sprints.

Treadmill hill sprints

No hill? A treadmill works, with a few adjustments.

• ›Set the incline first, something clearly steep.
• ›Use slightly longer reps of 10–20 seconds, because the belt takes a few seconds to speed up and slow down.
• ›Get on and off safely. Either slow the belt for the recovery, or step carefully onto the side rails while holding the handrails, then lower yourself back onto the moving belt the same way. If you're not confident doing that, slow the belt.
• ›Don't chase top speeds. The incline does the work. You don't need to set the belt to a number you can't control.

A full treadmill hill workout explained step by step covers longer hill sessions on the belt; for sprints, short, steep and controlled is the whole recipe.

Hill sprints in a running week

Hill sprints are short enough that they usually don't count as a separate hard day. Some ways to slot them in:

On a rolling route, you can also push every uphill inside a fartlek. If you're still asking what is a fartlek run, it's continuous running with surges, and hills make natural surges.

Common hill sprint mistakes

• ›Too long. Thirty-second "sprints" are hill repeats. Different session.
• ›Too little rest. Without full recovery, you're doing conditioning, not speed work.
• ›Too many, too soon. Start at four. Your calves and Achilles will thank you.
• ›Bad form. Leaning from the waist, short choppy steps, arms across the body. Run tall and drive.
• ›Sprinting downhill. Walk down. Fast downhill running is a different and much harsher stress.

How exrsz handles hill sprints

exrsz builds a periodized plan from your goal, schedule, level and equipment, and places short speed work like hill sprints where it fits around your hard runs and your heavy lifting. It balances running and lifting in one plan, adapts each week to how you actually trained, and reshuffles missed sessions instead of stacking them up.

FAQ

Do hill sprints make you faster?

They can. Uphill interval training improved running economy and 5 km time-trial performance in well-trained runners (Barnes et al., 2013), and short uphill sprints improved sprint speed in field hockey players (Jakeman, McMullan and Babraj, 2016). They work best alongside easy running and other training, not instead of it.

How do you do hill sprints?

Warm up, then sprint up a steep hill for 8–10 seconds with good form, walk back down, and rest fully before the next rep. Start with four reps and build to six to eight over a few weeks.

Can I do hill sprints on a treadmill?

Yes. Set a steep incline, use reps of about 10–20 seconds because the belt changes speed slowly, and recover by slowing the belt or carefully stepping onto the side rails.

How often should I do hill sprints?

Once a week is enough for most runners and lifters. They're short enough to add to the end of an easy run or the start of a leg session.

Are hill sprints good for lifters?

Yes. They're short, explosive and lower in impact than flat sprinting, so they work as the power part of a lower-body session or as speed work on an easy run day.