|
Training zones in rowing help you clearly separate easy base training, threshold training, and race-specific workloads. In German rowing, the five key areas are often called T/K, ExA, INA, HIA, and WSA. What matters, though, is this: zone boundaries are not natural constants. The most accurate way to define them is via your individual lactate or ventilatory thresholds. Heart rate, 500 m split, watts, stroke rate, and perceived exertion complement these values—no single metric replaces all the others.
If you row every session at a similar hard effort, you may rack up training time, but often without a clear stimulus. Very easy rowing supports technique, volume, and recovery. Training between the two physiological thresholds improves your ability to hold a brisk pace in a controlled way. Workloads above the second threshold develop, among other things, maximal oxygen uptake, race pace, and tolerance to high fatigue.
A zone model makes these differences planable. Before each session, it answers three questions:
Rowing stroke rate is part of this, but on its own it’s not intensity. You can row at 20 strokes per minute either easily or very powerfully. Only the combination of stroke rate, power, heart rate, and feel shows how high the load really is.
In sports science, endurance intensities are often described using three ranges:
The rowing 5-zone model subdivides the low and high ranges more finely. A study with highly trained U23 rowers showed that five zones can reflect training adaptations more precisely than just three. However, this does not create five independent metabolic thresholds.
The stroke rates are practical ranges, not boundaries. Technique, performance level, drag factor, interval length, and training goal can shift them.
In some rowing systems, S for speed is added as an extra range. This includes very short starts and sprints at maximal rate. It’s a neuromuscular add-on and not simply an even higher heart-rate zone: over ten maximal strokes, heart rate responds too slowly to control intensity meaningfully.
In the video, Lars classifies T/K, ExA, INA, HIA, and WSA using stroke rate, heart rate, and lactate, and finishes with a simple stroke-rate pyramid. You’ll find the current limitations of fixed HRmax and lactate boundaries directly in the text below.
T/K is the easiest range. The focus is on clean movement, rhythm, and low overall load. After a hard session, very easy rowing can feel good—but it should genuinely feel restorative. More pace quickly turns recovery into an extra workout.
Use T/K for technique drills, a short cool-down, or an optional easy session. If you’re tired, complete rest is still an equally valid—and sometimes better—choice.
ExA is the foundation of endurance training. You row long enough to accumulate a lot of aerobic work without creating major fatigue. Heart rate and breathing should stabilise after the warm-up. If your heart rate rises noticeably over time at the same power, heat, fluid loss, or fatigue may be the cause. In that case, it’s more sensible to reduce watts or pace slightly than to chase a number you originally planned.
If you want to understand the low range in more detail, the article Aerobic training in rowing: heart-rate ranges and intensity covers the physiological basics. By the way, the common fitness term “Zone 2” is not automatically identical to ExA 2: depending on whether you use a three-, five-, or seven-zone model, the same label can refer to a different range.
INA sits between the first and second threshold. The pace is brisk and breathing is clearly deeper, but the effort remains controllable. Suitable sessions are longer intervals such as 3 × 10 minutes or 2 × 15 minutes with short, easy breaks.
This range is effective, but it costs more recovery than ExA. It’s not a “forbidden grey zone”. More recent overviews of rowing training show instead that successful programmes are often built in a pyramidal way: lots of low intensity, less medium, and even less high intensity. How much INA makes sense depends on training phase, experience, and weekly volume.
HIA starts roughly at the second threshold and extends into the range of maximal oxygen uptake. Typical intervals are three to six minutes. One example is 4 × 4 minutes with an active or passive break. The goal is high, repeatable quality—not going all-out on the very first rep.
HIA can improve VO₂max and performance above threshold. Still, not every hard session is automatically VO₂max training. Interval length, breaks, total work time, and actual intensity determine the stimulus. You’ll find specific protocols in the article HIIT on the rowing machine.
WSA is not just about “very hard”, but about the demands of a specific race distance. For a 2,000 m test, for example, segments close to the planned 2k split make sense. Shorter reps can be a bit faster, longer ones a bit slower. Breaks and total volume must be chosen so that race pace, rhythm, and technique are maintained.
That’s why a random Tabata workout isn’t automatically WSA. Without a defined race goal, “high-intensity interval training” is usually the more accurate term.
Older tables often show training zones as fixed percentages of maximum heart rate and the lactate marks of 2 and 4 mmol/l. As a rough guide, that can help. For individual diagnostics, it’s not enough.
In practice, the following HRmax ranges are often used as a rough guide:
These ranges can shift individually. An age-based HRmax formula can be far off. Medication, temperature, sleep, stress, caffeine, and dehydration also affect heart rate. In short HIA and WSA intervals, it lags behind the actual load.
Lactate is similar. Values around 2 and 4 mmol/l are common reference points, but LT1 and LT2 are not exactly there for everyone. When evaluating its base endurance training, the German Rowing Federation explicitly stated that fixed lactate upper limits should increasingly be replaced by relative values referenced to LT1, LT2, and VO₂max. Even if performance at 4 mmol/l is closely linked to 2,000 m performance in studies, that doesn’t make 4 mmol/l a universal personal threshold.
The best order for controlling training is therefore:
Read more in Anaerobic threshold in rowing: meaning, measurement, and training. If you don’t know your HRmax yet, the existing article on calculating maximum heart rate and classifying the anaerobic range offers a first introduction.
A current 2,000 m time is not a substitute for LT1 and LT2. But it is a useful performance reference, especially for HIA and WSA. From the total time, you first get the average 500 m split:
2,000 m time in seconds ÷ 4 = target 500 m split
If a training target is given as a percentage of 2k speed, you need to account for the fact that split and speed are inversely related:
Training split = 2k split ÷ speed fraction
At 7:30 minutes over 2,000 m, the 2k split is 1:52.5. 80% of that speed is not 2:15.0 by simple multiplication, but about 2:20.6 per 500 m: 112.5 seconds ÷ 0.80.
For easy ranges, this method remains only an approximation. Two people with the same 2k time can have different LT1 values. So always check the calculated split against heart rate, breathing, and perceived effort.
The simple statement “80% easy, 20% hard” is useful, but not complete. The result depends on whether you count whole sessions or every single training minute. Also, elite rowers train far more often than recreational athletes.
Current rowing-specific research mostly shows a pyramidal and seasonally flexible distribution: the largest share is low, a smaller share is between LT1 and LT2, and the smallest share is above LT2. Polarised training—lots of easy, some very hard, and little in between—can be useful especially in phases close to competition. But it’s not proven to be superior for every goal and every performance level.
For four sessions per week, the following structure is a solid starting point:
Every other week, the INA session can be replaced by 4 × 4 minutes HIA, provided you’re healthy, technique stays stable, and you recover sufficiently. WSA mainly belongs in a targeted 2k build-up and then replaces another intensive session; it’s not added on top. Beginners should stick with T/K and ExA at first and only add a controlled quality session after a few weeks.
For zone training, you don’t need the highest possible resistance level—you need reliable feedback. The AUGLETICS Eight Style shows, among other things, 500 m split, watts, and stroke rate. With a compatible heart-rate strap, you can track heart rate on the display; with the heart-rate-controlled training function, a target heart rate can be set. The Virtual Coach also helps you keep your movement clean even under fatigue.
Use this data as tools, not as an autopilot. An unusually high heart rate at a normal ExA split is a reason to check the load. A low heart rate doesn’t automatically make a technically messy or muscularly overwhelming session “easy”.
Training zones in rowing give every session a clear purpose. T/K and ExA build technique and an aerobic base, INA develops controlled performance between thresholds, HIA provides intensive aerobic stimuli, and WSA specifically prepares you for race pace.
The most important update compared to rigid zone charts is this: percentages of HRmax as well as the 2 and 4 mmol marks are guidance, not personal truth. Good training control combines individual thresholds, split or watts, heart rate, and perceived exertion. Most training stays easy; how much INA, HIA, and WSA makes sense depends on your goal, performance level, and training phase.
Lars Wichert combines a sports science background with experience as an elite rower, Olympic participant, three-time world champion, and former coach. For this revision, the zones were assessed based on whether they can be understood, measured, and applied on the rowing machine without false precision.
The technical basis includes, among other things, the DRV evaluation of specific base endurance training, which aims to further develop fixed lactate boundaries in favour of individual LT1/LT2 references, as well as the systematic review on intensity training in elite rowers by Zhong et al. (2025). In addition, the network meta-analysis by Rosenblat et al. (2025), the 5-zone study by Watts et al. (2023), and the review on 2,000 m rowing by Treff et al. were taken into account.
In German rowing, T/K (technique/compensation), ExA (extensive endurance), INA (intensive endurance), HIA (high-intensity endurance), and WSA (race-specific endurance) are commonly used. Some systems add S for very short speed efforts.
Not automatically. “Zone 2” can mean something different depending on whether a three-, five-, or seven-zone model is used. ExA is mostly below the first lactate or ventilatory threshold. So what matters is the definition, not just the zone number.
Heart rate provides good guidance, but it doesn’t determine the zones precisely on its own. The most reliable approach is rowing-specific measured LT1 and LT2 values. Without diagnostics, you should combine heart rate with split or watts, RPE, and the talk test.
For many recreational athletes, one intensive session per week is enough at first. Depending on the training phase, HIA and WSA should alternate or replace another quality session. Two very hard sessions on top of high volume increase fatigue and aren’t necessary for beginners.
A 2,000 m time is well suited for deriving performance-based split and watt ranges, but it doesn’t determine LT1 and LT2 precisely. A good calculator labels these values as approximations and becomes more accurate when measured HRmax and LT1/LT2 data are added.
|
|
|
You are currently viewing a placeholder content from Vimeo. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from YouTube. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou need to load content from reCAPTCHA to submit the form. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Facebook. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Klaviyo. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from TrustIndex. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Typeform. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Google Maps. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More Information