Why Endurance Training Starts to Feel Different in Perimenopause

For most of my life as an endurance athlete, I trained on a pretty standard schedule. Monday to Sunday. Seven tidy days. Hard sessions slotted neatly into the calendar. Long run on this day, intervals on that day, recovery ride here. It was structured, predictable, and for a long time, it worked really well.

Then at some point in perimenopause, it stopped working the same way. At first, I couldn’t quite figure out what was wrong. I was still training consistently. I was still motivated. But workouts that used to feel manageable suddenly felt disproportionately hard. Recovery between sessions took longer. A hard workout on Tuesday seemed to follow me around until Friday. Some weeks it felt like I was never fully catching up before it was time to do the next demanding session.

Like a lot of endurance athletes, my first instinct was to tighten things up. I focused harder on recovery strategies, tried to improve my sleep, dialled in my nutrition, added more strength work and mobility, and became even more disciplined about sticking to the plan. I assumed the answer was simply being more consistent.

But eventually I realized the problem wasn’t my effort level. The problem was that I was still expecting my body to recover the way it had twenty years earlier.

That’s one of the harder things about perimenopause and menopause for endurance athletes. Most of us are used to being capable of handling a lot. We’ve spent years building identities around toughness, consistency, and pushing through discomfort. We are incredibly good at following plans, even when we probably shouldn’t.

But hormonal changes have a way of exposing whether your body is truly recovering or whether you’ve just gotten very good at functioning while exhausted. For many women, recovery starts to look different in midlife. Sleep often becomes less reliable, and even a couple of rough nights can completely change how a workout feels. Stress tolerance shifts. Intensity can linger longer in the body. Sometimes you can complete the workout, but your body can’t fully absorb it afterward. Instead of adapting and getting stronger, you just feel increasingly depleted.

I see this all the time with women in endurance sports. They assume they need to train harder because they feel worse, when in reality they often need more space between demanding sessions. That realization completely changed how I approach training.

One of the biggest things I let go of was the idea that my body should recover on a strict seven-day schedule simply because the calendar says so. The reality is that hormones do not care that your long ride is “supposed” to happen on Saturday. If I’ve slept terribly for two nights, my resting heart rate is elevated, and my legs feel heavy, forcing a hard threshold session because it’s written on the plan rarely ends well. In the past, I would have pushed through anyway because checking the box felt important. Now I’m much more willing to adjust based on what my body is actually telling me.

Sometimes that means moving workouts around. Sometimes it means replacing intensity with easier aerobic work. Sometimes it means admitting that what I probably need most is recovery instead of another session that digs the hole deeper. Ironically, becoming more flexible has made my training better, not worse.

These days, I often structure my training on a rolling nine- or ten-day cycle instead of trying to cram everything into a traditional Monday-to-Sunday week. That extra space allows me to recover more fully between demanding sessions, and as a result, I’m actually able to absorb the training again instead of constantly feeling like I’m surviving it. What surprised me most was realizing I didn’t necessarily need to train less. I just needed to train differently. For some women that may look like doing 1 quality run session a week instead of two. Or building for two weeks and then taking a recovery week vs. the more traditional three week build, one week recover.

I think many women hear conversations about menopause and exercise and immediately assume it means lowering expectations or accepting decline. That hasn’t been my experience at all. Women in midlife are still incredibly capable of performing well, building strength, and improving endurance. But the path to getting there often requires a different approach than it did in our thirties. It requires more honesty about recovery. More flexibility. More willingness to adapt instead of forcing ourselves into structures that no longer fit.

And honestly, that can be uncomfortable for endurance athletes because so much of our culture rewards rigidity. We praise people for never missing workouts, for grinding through fatigue, for sticking to the plan no matter what. But there’s a difference between consistency and stubbornness.

Sometimes the smartest thing an athlete can do is recognize that a bad night of sleep, high stress, and lingering fatigue are not character flaws. It's information. Learning to work with your body instead of constantly fighting it is one of the biggest shifts of training through perimenopause and menopause. And for many women, it’s also the thing that finally allows training to start feeling good again.