How to Fix 10 Common Endurance Mistakes

Once upon a time (pre-2010), my “endurance training” went like this: 
Step 1: Start paddling.
Step 2: Increase effort until time or energy runs out.
Step 3: Finish tired and hungry, collapsing with bad posture.

Heart rate graph: climbs upwards like a staircase, sometimes reaching a peak heart rate.

But then, in 2010, my coach Janet changed my world by introducing me to non-stop, low-intensity paddling, and then my training went more like this: 
Step 1: Start paddling and increase the effort until reaching 130 bpm heart rate.
Step 2: Keep heart rate steady between 125 and 135, backing off if it goes above 135.
Step 3: End workout at 130 bpm heart rate, feeling strong, fed and sitting up tall.

Heart rate graph shows a straight graph with little fluctuations.

Learning to keep my effort, and therefor heart rate low and steady—a flat, consistent line—transformed everything. I would recover quickly, and I could work hard in my next high-intensity or sprint interval session. Over time, I noticed I was finishing races feeling stronger at the end. As part of my overall plan, low-intensity training was effective and sustainable.

When I started coaching teams, it was my turn to help paddlers overcome mistakes and unlock the real benefits of endurance training. Seeing so many paddlers learning together at the same time gave me an expansive view of what mistakes can happen in endurance training and how to fix them. 

At the first endurance workout with the team, the paddlers looked relaxed, but by the end of the session, their faces were turning red, and their breathing was labored. Instead of maintaining a steady pace, they pushed each other harder, speeding up the stroke rate at times and speeding it up even more at other times. They ended their endurance sessions exhausted.

As we circled around after practice, I had the unenviable job of explaining that by going out too hard, they sabotaged the adaptations they were aiming for.

This hardworking, committed group of athletes didn’t intend to sabotage their training. Like many athletes, they believed that all training was about exhaustion. But getting exhausted in endurance training is like cranking the stove too high and burning everything to a crisp.  

The truth is that all training is about creating the conditions to make an adaptation. Some things are done better on a low simmer, and others are done better on a boil. 

Fix: To train endurance, you need nonstop, low-intensity efforts without fatigue. If you finish your session tired, you worked too hard, or your session was longer than you were ready for. Hard interval and low-intensity endurance sessions are kept separate because they target different energy systems. Endurance training is different because it barely produces any lactate. This is low-cost and easy to recover from, whereas intensity produces lactate and strains your muscles, which is costly for fatigue and recovery.

In that aforementioned workout, I noticed that their technique faded. Their posture collapsed—shoulders hunched, rotation gone, pulling with their arms, not their backs, and they weren’t hinging. Losing technique as the training session progresses leaves you open to injuries arising from misaligned joints and not using your larger muscles, which reduces your speed potential when you go hard.

There are several reasons why you might lose your technique during a paddle. 

Reason 1: Distraction. Sometimes, we have a lot on our minds and are focused on what happened before we got to paddling or what we are doing after. 

Fix: Clear your mind when you arrive and focus on each stroke, one stroke at a time, while you paddle.

Reasons 2 & 3: Not knowing when your technique is slipping and/ or not knowing the correct technique. Sometimes, people don’t know that their technique is slipping because they haven’t practiced their muscle activation and established the muscle memory and cues to know what it feels like when their posture has slipped, or they have stopped using specific muscles. Still, others might not have learned to activate all their muscles and align properly fully.  

Fix: If you lack the muscle memory, cues, and ongoing toolbox to continually keep your technique fine-tuned, I highly recommend prioritizing this. This is such a critical part of training, which is why I developed the Precision Paddling program. Read about Precision Paddling technique training here.

Reason 4: Going out for too long. 

Fix: First, go for shorter workouts, only as long as your technique can hang, and then increase duration incrementally week after week. Second, make sure that you are training towards a goal. 

The amount of endurance training you need will depend on the duration (time, not distance) of the event you are training for.  If you are training for a 90-minute race, you don’t need to do 2 hours of base training. If you are training for a 4-hour race, you need to build up to nearly 4 hours of base training. 

Fix: Figure out how many hours and minutes you expect the event to take. Gradually build up to just under that amount of time (not distance), focusing on the details outlined above to help you get the most out of each session. 

Chasing the pack or trying to stay in front of people almost guarantees you’ll work too hard. There are many reasons why this happens. 

Reason 1: The person we paddle with has a different focus for the workout. Or perhaps their goal is a lactate threshold and not endurance, and then you feel the pressure to keep up.  

Fix: Paddle alone or with a friend who understands the focus and preferably has the same goal. If you don’t want to paddle alone, then hang back from the group and tell them you are doing your own thing so there are no expectations to keep up. 

Reason 2: Measuring your progress against another person. Paddlers commonly get pushed harder because they are measuring themselves against that person. They don’t have the technology to measure their own effort, and they don’t know what their measurements should be.  

Fix: Make sure you have a heart rate monitor and/or a tempo trainer and know how to use them.  

Paddlers sometimes start at a cadence they cannot maintain for the entire workout and gradually slow it down. This teaches your body to slow down throughout the session rather than to maintain a pace throughout the duration. 

Fix: Use a metronome as a training partner. Start at the tempo you can finish with. You’ll keep a perfectly steady pace, and you won’t have to worry about your cadence slowing down, which is excellent for conditioning. 

It takes focus to keep your heart rate low; when you can’t see it, it’s hard to keep it where you want it. 

Fix: Mount your device in front of you with your heart rate displayed. Keep your heart rate within a 10-beat range, such as 120-130.

The heart rate zones that come with your smartwatch are not personalized to your age, gender, level of fitness, aerobic zone, or max heart rate. 

Fix: Pay attention to your heart during your most strenuous training or racing and calculate 65-70% of that number as your endurance zone. If that seems incorrect (too hard or too easy), do your endurance training with your mouth closed, at a tempo you can maintain for the duration, and stay within a ten-beat range of that number.

Upwind paddling is heavy, which makes it more like a strength workout. Downwind paddling is too tempting to sprint after bumps, and the wind assistance makes achieving a steady state harder. 

Fix:  Choose protected flat water or a calm day for endurance training. If there is no way you can go on a day with light wind and waves, go across the wind so that at least your session is consistent in both directions rather than having an upwind section followed by a downwind section. 

Even if you are training for a 500m sprint, the foundation is the same. You still need to develop your aerobic system; skipping this means your peak power will be lower.

Fix: Incorporate multiple 45-60-minute low-intensity sessions a week. Sprinters don’t need to put in the endurance volume that someone training for a 2,3, or 4-hour race does, but you still need to incorporate multiple low-intensity sessions to make your base big and as part of recovery from all the intensity in your training.

Women don’t do well underfed. Our metabolism slows down, and our bodies rob themselves to get what they need. Long training sessions are an opportunity to practice eating and help your body get used to taking in food.  

Fix: For sessions longer than 75 minutes, bring calories and practice the logistics of taking a bite, fine-tuning what type of food works for you, and training your body how to digest while paddling.

These mistakes are common, and most people, myself included, make at least a couple of them. However, the benefits of correcting them are incredible! It takes discipline to keep the intensity low, but it’s worth it to get these adaptations and to save yourself for hard intervals, which cost a lot in terms of recovery time, energy used, and risk of injury. 

A well-rounded training program includes technique training, intervals for speed and power, and training to build endurance.  Developing your endurance aerobic system is the base that prepares you to finish races and time trials feeling strong and keeps you healthy and able to participate for years to come.

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