What does LT mean in running?
Emily Sparks
Published Jan 18, 2026
One of the best measures of running fitness is lactate threshold (LT), which is the running speed or heart rate at which lactate — an intermediate product of aerobic metabolism in the muscles — begins to accumulate rapidly in the bloodstream.
How fast is LT pace?
For highly trained and elite runners, lactate threshold pace is about 25 to 30 seconds per mile slower than 5K race pace (or about 15 to 20 seconds per mile slower than 10K race pace), and corresponds to about 85 to 90 percent max HR. The pace should feel "comfortably hard."
What does LT mean in exercise?
Lactate threshold (LT), also known as anaerobic threshold, is the fastest a person can perform aerobic exercise in a steady state without fatiguing. Exercise performed above the LT causes blood lactate levels to rise suddenly. Lactate is a by-product of metabolism and exercise that the body is constantly producing.
How long can you run at LT?
On the low end of the zone, the pace is roughly the pace you can race for 2 to 3 hours. In the middle of the zone is the pace you can race for 1 to 1.5 hours. At the fast end of the zone is the pace you can race for 30 to 45 minutes.
What does LR stand for in running?
Key: ER = Easy Run, SR = Steady Run, TR = Threshold Run, HR = Hill Run, FR = Fartlek Run, IR = Interval Run, LR = Long Run, MP = Marathon Pace, 1/2MP = Half Marathon Pace. Gear.
26 related questions foundWhat is Ri in running?
RI = recovery interval; which may be a timed rest/recovery interval or a distance that you walk/jog. The Finish with FIRST Training Program is designed for runners looking to complete their first marathon.
What is MP in running?
MP is marathon pace.
What is LT pace?
Lactate threshold pace (LT pace) is the best physiological predictor of distance running performance. Your LT pace is how fast you can run before the lactate (lactic acid) level in your muscles and blood increases rapidly.
What is a good running economy?
The steady-state oxygen consumption (VO2) at a given running velocity, which is often referred to as running economy (RE) [1-3], reflects the energy demand of running at a constant submaximal speed. Runners with good economy use less oxygen than runners with poor economy at the same steady-state speed (Figure 1) [4].
How long can you ride VO2 max?
VO2max Interval Length
Since VO2max can typically be sustained for 5-8 minutes, I recommend intervals that range from 2-5 minutes for criterium, road, cyclocross, and mountain bike and 4-8 minutes for time trial and triathlon events.
What is a good VO2 max for runners?
Elite male runners have shown VO2 maxes of up to 85 mL/kg/min, and elite female runners have scored up to 77 mL/kg/min. A good VO2 max for a 25-year-old male is 42.5-46.4 mL/kg/min, while a good value for a 25-year-old female is 33.0-36.9 mL/kg/min.
What are VO2 max workouts?
Typical VO2 max workouts are built using repetitions that are sustained from 1 to 5 minutes, with active recovery between 50% to 100% of the duration of the repetition (with a total volume of 10 to 20 minutes at VO2 max). The pace is very similar to the 2-3 km race pace for runners.
How do you increase VO2 max?
How can you increase your VO₂ max?
- Perform high-intensity interval training. This consists of doing several minutes of intense aerobic exercises, like cycling on a stationary bike, reducing the intensity for a few minutes, and increasing the intensity again.
- Switch up aerobic activities in a single workout.
How much slower is 5K pace the mile pace?
5K pace/effort: The pace or intensity level you can hold for a 5K race, which is just over 3 miles. This pace is about 40 seconds per mile faster than your half-marathon pace.
What is an elite running pace?
Average pace: 11:15 minutes per mile. Number of 2015 finishers: 11,539 Number of Strava finishers: 244. 15 minute. pace per mile. 10.
What is my lactic threshold?
Lactate threshold is the point where your muscles start to rapidly fatigue. Your device measures your lactate threshold level using heart rate and pace. When a runner exceeds their threshold, fatigue starts to increase at an accelerating rate.
Is it better to have high or low running economy?
To compare running economies between individuals, VO₂ is interpolated to common running velocities while also quantifying how much oxygen is needed to run one kilometer relative to body mass. A lower value of running economy demonstrates better running efficiency and provides a good predictor for race performance.
Do runners draft each other?
Effective drafting
Drafting is entirely legal in running. However, in order to strike the balance between maximising your performance and not antagonising your rivals to the point of no return perhaps you can offer to 'share the pace' if you are running in a small group.
What is the proper running form?
Keep your shoulders directly above your hips. Relax your arms, gaze straight ahead, and avoid looking down or at the monitor. Use a short stride, and take small steps. Running on a treadmill will force you to shorten your stride since overstriding will cause you to kick the front of the treadmill.
Do tempo runs increase VO2 max?
Nevertheless, when pondering these important issues, we should not forget what the data tell us: "long" intervals and tempo runs are probably our best training tools for maximizing VO2max, lactate threshold, running economy, and overall fitness.
How far should tempo runs be?
A tempo run is a moderate-to-hard intensity training run, between 5km and 8km or between 20 minutes and 40 minutes in duration. The intensity of a training run should be around 6 out of 10 in terms of rate of perceived exertion (we cover exact timings and pace later).
What does easy run mean?
An easy run, sometimes referred to as a recovery run, is any run done at a very controlled and comfortable pace. It doesn't need to be any set time or distance but is generally shorter than most other runs. Truly, this type of run is determined by relative effort.
What pace is steady run?
A steady state run is a continuous run at an easy-medium pace – not fast but not slow. Not hard but not easy. The runs should last at least 25 minutes and can go as long as an hour and 15 minutes.
What does GMP stand for in running?
Marathon. At the start of your training, replace a weekly tempo run with five miles at your goal marathon pace (GMP).