Running starts off simple. A pair of running shoes, a bit of pavement, maybe a playlist that makes you think you’re faster than you are.

Then, a few weeks in, everyone starts speaking fluent runner. Cadence. Threshold. Pronation. Drop. DOMS. Suddenly your easy 5K has turned into a vocabulary test.

Most running terms are not as complicated as they sound. They are just shortcuts for things you already feel on the run: heavy legs, smooth rhythm, sore calves, running shoes that feel brilliant, shoes that feel like a mistake by kilometre two. This running glossary breaks down the words you’ll hear most often, in plain English, with the bits that actually matter when you’re out there.

What is stride in running?

Your stride is the full movement from one foot hitting the ground to that same foot leaving again. When your stride feels good, running feels smooth and almost boring in the best way. You are not forcing it. You are just moving.

When it feels off, you might notice clunky landings, heavy steps, or that annoying feeling that the pace should feel easier than it does. That does not always mean your form is broken. It might be fatigue. It might be pacing. It might be your shoes not matching the run. Sometimes it is just Wednesday.

What is cadence in running?

Cadence is your step rate, usually counted in steps per minute. You will often hear runners talk about 170 to 180 steps per minute, but do not treat that like a magic password into proper running.

Taller runners, slower paces, tired legs and different running styles all change cadence. Think of it as rhythm. If your steps feel light, steady and controlled, you are probably in a decent place. If you force a higher cadence and suddenly feel like you are tap dancing away from danger, relax. The number is there to help, not ruin your run.

What is ground contact time?

Ground contact time is how long your foot stays on the ground with each step. Shorter ground contact can be linked with efficient running, especially at faster paces, but it only matters if you still feel stable.

There is no prize for spending less time on the floor if every step feels rushed. If you are sprinting, it will be shorter. If you are jogging home after a long day, it will be longer. That is normal. Your watch might care deeply. Your legs are more sensible.

What is footstrike?

Footstrike describes how your foot lands when you run. Some runners land on the heel, some on the midfoot, some further forward on the forefoot. None of these are automatically wrong.

Pace, fatigue, shoes and terrain all affect how you land. A relaxed easy run might look different to a fast interval session. What matters most is whether your landing feels comfortable, repeatable and controlled. If you are running well, staying consistent and not picking up issues, you probably do not need to rebuild your footstrike because someone on the internet got intense about slow-motion videos.

What is gait?

Gait is the way your body moves through each running step. It includes how your foot lands, how your leg tracks, how your hips move and how everything links together.

Every runner has their own gait. Some look smooth. Some look like they are wrestling invisible furniture and still run very quickly. The main thing is whether your movement feels comfortable and sustainable. If something keeps hurting, or your shoes wear down strangely on one side, gait becomes useful to look at.

What is pronation?

Pronation is the natural inward roll of your foot when it lands. Everyone pronates. It is part of how the foot absorbs impact.

Neutral pronation means the foot rolls in a controlled way. Overpronation means it rolls further inwards. Underpronation, sometimes called supination, means it rolls less. None of this automatically means panic. It only really matters when that movement starts affecting comfort, control or injury risk.

This is where shoe choice comes in. Some runners feel better in neutral running shoes. Others prefer stability running shoes with more guidance underfoot. The right choice is the one that makes your stride feel calmer, not the one that sounds most technical.

What is gait analysis?

Gait analysis is usually an in-store treadmill check that looks at how you move when you run. It can help narrow down whether neutral running shoes or stability running shoes are more likely to suit you.

It is not a medical diagnosis. It is a useful starting point. Think of it as getting someone to point you towards the right aisle before you start trying on half the shop.

What is heel drop in running shoes?

Heel drop is the difference in height between the heel and forefoot of a running shoe. A 10mm drop means the heel sits 10mm higher than the front of the shoe.

Higher drop running shoes often feel more cushioned at the back and can suit runners who land on the heel or prefer a more traditional feel. Lower drop shoes feel flatter and more natural for some runners, but they can ask more from the calves and Achilles, especially if you change too quickly.

Neither is better for everyone. If your calves complain every time you try a lower drop shoe, listen to them. They are not being dramatic. Well, maybe a little.

What is the upper of a running shoe?

The upper is the part of the running shoe that wraps around your foot. It controls fit, lockdown, comfort, breathability and how secure the shoe feels when you turn, climb, descend or pick up the pace.

A good upper should hold your foot without squeezing it. You want the heel locked in, the midfoot secure and enough room at the toes for swelling on longer runs. If something rubs in the shop, it probably will not become charming after 10K.

What is the midsole?

The midsole is the foam layer between your foot and the ground. This is where most of the ride feel comes from.

Soft, firm, bouncy, stable, dull, lively, protective, snappy. Most of those words are really about the midsole. If a shoe feels harsh, flat or too wobbly, the midsole probably is not matching your stride, pace or preference.

This is why two running shoes can look similar and feel completely different once you start moving.

What is the outsole?

The outsole is the bottom layer of the shoe. It deals with grip, traction and durability.

On road running shoes, the outsole needs to handle wet pavements, corners, painted lines, rough tarmac and general mileage. On trail running shoes, it needs more bite for mud, gravel, grass, roots and uneven ground.

It is the least glamorous part of the shoe until it rains. Then it becomes very important, very quickly.

What are running shoe foams?

Running shoe foam is where brands love to bring out the science words. You do not need to memorise every compound. You just need to know how the shoe feels and what job it is built for.

EVA foam is the classic option. It tends to feel stable, reliable and familiar. TPU foam can feel softer and springier, often with good durability. PEBA foam is lighter and more responsive, usually found in faster training shoes and race shoes. Supercritical foam is processed to feel lighter and bouncier, and often appears in performance shoes.

The useful question is not “what is the chemistry?” The useful question is “does this feel good after 40 minutes on tired legs?”

What is pace in running?

Pace is your speed, usually measured per kilometre or per mile. A 5:00/km pace means each kilometre takes five minutes.

The real skill is learning what different paces feel like without checking your watch every thirty seconds like it owes you money. Easy pace should feel easy. Steady should feel controlled. Hard should feel hard, but not chaotic.

If every run turns into a race, your pace is probably running the show. Take it back.

What is a tempo run?

A tempo run is a controlled hard effort. You are working, but you are not racing. You can speak in short bursts, but you would not choose to have a full conversation unless you are trying to lose friends.

Tempo runs help build speed and endurance because they teach you to hold a strong pace without tipping into full panic. They are uncomfortable, useful and strangely satisfying once they are over.

What is lactate threshold?

Lactate threshold is the point where your effort starts to shift from controlled to properly uncomfortable. Below it, you can hold pace for a decent stretch. Above it, things begin to unravel.

Training around threshold helps your body stay stronger for longer. In normal runner language, it is learning how to sit close to the red zone without immediately moving in and unpacking.

What is DOMS?

DOMS stands for delayed onset muscle soreness. It is the soreness that turns up a day or two after a hard run, hill session, race, gym workout or sudden decision to “get serious” with training.

It is normal. It fades. Easy movement, sleep and sensible recovery usually help. Sharp pain, localised pain or pain that gets worse is different. That is not DOMS being spicy. That is a sign to back off and pay attention.

What is running economy?

Running economy is how efficiently you use energy at a given pace. You do not always feel it directly, but you notice it when a pace that used to feel hard starts to feel manageable.

Better running economy comes from consistent training, good pacing, strength work, decent recovery and learning to hold your form when you are tired. It is not glamorous. It is built quietly, run by run.

What is VO2 max?

VO2 max is the maximum amount of oxygen your body can use during hard exercise. Watches love showing it. Runners love pretending they do not care, then checking it anyway.

It can be a useful long-term fitness marker, but it is not the full story. Plenty of good runners do not obsess over VO2 max. They train consistently, recover properly and know how to pace themselves. Annoyingly simple. Usually effective.

What is training load?

Training load is the total stress your running puts on your body. It includes mileage, intensity, frequency, terrain, sessions, races and how much life is already taking out of you before you even lace up.

A 5K after a full night’s sleep is not the same as a 5K after six hours at your desk, two coffees, no lunch and a questionable banana. Your watch might track training load, but your legs usually give the clearest feedback.

The aim is to build enough load to improve without tipping into constant fatigue, soreness or injury.

What are strides?

Strides are short, controlled accelerations, usually done at the end of an easy run. They are not sprints. You are not racing an imaginary bus.

Think quick, smooth and relaxed. Strides remind your legs how to move fast without the fatigue of a full speed session. They are simple, useful and over before you have time to make them complicated.

The running terms worth knowing first

If you are new to running, start with the words that actually help you make better decisions: pace, cadence, pronation, heel drop, midsole, outsole, tempo run, training load and DOMS.

Those terms help you understand how you move, how your shoes feel, how hard you are working and when your body needs a quieter day. The rest can come later.

Running never really gets complicated. It just gets layered. Learn the terms that help, ignore the ones that make your brain cramp, and let the run do most of the talking.

Explore Pro:Direct Running to find road running shoes, trail running shoes, cushioned running shoes, stability running shoes and faster training shoes built for the way you actually run.