Movement in Midlife: Strength, Walking, and When Exercise Becomes Too Much

Movement is the 1 practice that feeds every system in this book at once. Your muscles soak up blood sugar, your bones answer load, your heart and lungs grow stronger, your brain grows new connections, and your Nervous System settles.

Midlife changes the kind of movement your body asks for. The workouts that carried you at 30 may be too little in some ways and too much in others at 50.

This chapter gathers the pieces: strength, walking, your heart and lungs, balance and power, your pelvic floor, and the signs that exercise has tipped from medicine into another stress. The Bones chapter and the Joints chapter hold the full strength training detail, and this chapter points you there.

My Own Story With Movement

Before my diagnosis, I lived with gripping fatigue and all of my symptoms, and I could not do any conscious exercise.

To get out of my slump, I went on the Camino with some dear sister friends. And I came back unbelievably sick, and that, at least, is what helped me to get diagnosed.

I did not get my Autoimmune as a result of the Camino. The long walk cleared my system enough that I could finally feel it: something is really not right.

So I know both sides of this chapter. I know what it is to have no energy to move, and to push a depleted body farther than it could go. I also know what it feels like when movement becomes nourishment again, once the body underneath is resourced.

Today I move every day:

• An incline walk on my indoor treadmill, 45 minutes to an hour, ideally between 10 and noon.
• An afternoon walk outdoors, where there is a hill, for about an hour.
• A walk with our dogs, for about 45 minutes.
• Swimming, 30 minutes every day.
• Qigong.
• Some strength training with weights, and a little jumping for my bones, as the Bones chapter describes.

That is a lot of walking, and it is built for 1 body, mine, after years of rebuilding. It is what I call 'one size fits one'. Your week will look like yours, shaped by your labs, your energy, and your joy.

Why Movement Changes in Midlife

Muscle. In the SWAN study, Women began losing lean mass about 2 years before their final period, while the rate of fat gain nearly doubled, and both continued until about 1.5 years after it. Worldwide, about 10 to 27 percent of adults over 60 have sarcopenia, the loss of muscle mass and strength, depending on how it is defined.

Bone. Bone loss speeds up about 1 year before the final period and runs about 2 percent a year for several years, more in the spine. Estrogen once protected your bone and muscle on its own, and now your training has to send the signal.

Heart and lungs. Your fitness, measured as VO2 max, the most oxygen your body can use, declines with age, and it is 1 of the strongest predictors of how long and how well you live, as the section on your heart below explains.

Recovery. Broken sleep, shifting hormones, and a stress system working overtime can all slow how fast you recover from a hard session. The same workout can land differently in a body with less recovery to spend.

Strength Training: The Foundation

If you do 1 thing from this chapter, lift. Muscle carries your blood sugar, your bones, your balance, and your independence into your 70's and 80's.

The National Strength and Conditioning Association recommends that older adults train 2 to 3 days a week, with 1 to 3 sets of 6 to 12 repetitions at about 70 to 85 percent of the most they can lift once, adding load over time, along with power training. Dr. Stacy Sims urges Women in Perimenopause and after to lift heavy, with fewer repetitions and a real challenge in the last few, and to add short jump training.

How much is enough. In an analysis of cohort studies, 30 to 60 minutes a week of muscle-strengthening activity was linked to about 10 to 20 percent lower risk of dying from any cause, heart disease, and cancer, with no clear added benefit beyond about an hour. Combined with aerobic activity, the lowest risk was about 40 percent lower. That research is observational, and it tells you that 2 or 3 focused sessions a week carry most of the benefit.

The detail lives in 2 places:

• 'Strength Training: The Command Your Bones Are Waiting For', in the Bones chapter, covers the LIFTMOR trial, why load plus impact works best, progressive loading, safety with low bone density, and a sample week.
• 'Strength Training for Joints and Muscles' and 'When Inflammation Is High, Start Low and Build', in the Joints chapter, cover joint-friendly principles and how an inflamed body builds toward heavier lifting.

Feed the muscle you train. 25 to 30 grams of protein at each meal, and protein soon after training, as 'Eating for Midlife' explains. Dr. Sims also advises eating before morning training, and she recommends against fasted training.

Walking: The Medicine You Already Own

A good old-fashioned walk without a phone call or music is simply the invitation for 30 days, and consecutive days, if possible, because it works like a medicine.

Count your steps once, and you will know where you stand. In a study of 16,741 Women with an average age of 72, those who took about 4,400 steps a day had a 41 percent lower death rate than those who took about 2,700. The benefit kept growing until about 7,500 steps a day, then leveled, and pace mattered less than total steps.

A 2025 analysis of 57 studies found that 7,000 steps a day, compared with 2,000, was linked to about 47 percent lower risk of death and about 38 percent lower risk of dementia, with fewer heart problems, less depression, and fewer falls, and most benefits leveled off around 7,000. An earlier analysis of 15 cohorts found the benefit leveled off at about 6,000 to 8,000 steps for adults 60 and over.

10,000 steps began as a 1960s pedometer marketing number. 7,000 is a realistic, research-backed target, and more is welcome if your body loves it.

Walk after meals. In a review of 7 short trials, a light walk after eating lowered the rise in blood sugar by about 17 percent compared with sitting, and walks of just 2 to 30 minutes helped. Working muscles act like a sponge, soaking up glucose from your blood.

Make it a hill. An incline turns an easy walk into real work for your heart, your glutes, and your calves, with less pounding than running. My treadmill incline and my afternoon hill are where my heart does much of its training.

Swim. I swim for 30 minutes every day. Water carries your weight, so swimming is gentle on your joints and wonderful for your heart and lungs. Because the water unloads your skeleton, pair swimming with strength training and impact for your bones, as the Bones chapter explains.

Walking is not enough for your spine on its own. As the Bones chapter explains, a review of 10 trials found walking had no significant effect on bone density at the lower spine in Women in and after Perimenopause. Keep walking for your heart, your mood, and your blood sugar, and add lifting and jumping for your bones.

Your Heart and Lungs: Zone 2, Intervals, and VO2 Max

Fitness is 1 of the strongest numbers you can change. In 122,007 adults who had treadmill tests, the least fit had about 5 times the risk of death of the most fit, a gap the researchers found comparable to or larger than smoking, diabetes, or heart disease, and they found no upper limit to the benefit. In 5,721 Women, an exercise capacity below 85 percent of what is expected for their age doubled the risk of death.

Zone 2. Zone 2 is steady, easy-to-moderate effort, the pace where you can still speak in full sentences. It has become famous as the key to longevity and to building mitochondria, the energy factories in your cells.

A 2025 review in Sports Medicine concluded that current evidence does not show Zone 2 is the best intensity for building mitochondria or fat-burning capacity, and that higher intensities produce equal or greater gains in people who are new to training. Zone 2 is still valuable as easy volume, a base you can recover from, and a gentle option for a body with flat cortisol. My walks are mostly this pace.

Intervals. Short bursts of hard effort with recovery between them build VO2 max efficiently. In the Generation 100 trial, about 1,500 Norwegians aged 70 to 77, about half of them Women, were followed for 5 years. The group that did twice-weekly intervals, 4 rounds of 4 minutes hard, had the lowest death rate, about 3 percent, compared with about 6 percent in the moderate exercise group, a difference that was not statistically significant, and they reported better quality of life.

Dr. Sims' sprints. Dr. Sims recommends that Midlife Women favor short sprint intervals and heavy lifting over long, moderate cardio. Her format, with sprints of 30 seconds or less and full recovery between them, is in 'Recovery and Sleep', in the Joints chapter. Rest fully between sprints, so the next 1 can be just as hard.

How to begin. Build a walking base for several weeks first. Then add 1 short interval session a week, such as a few hard bursts up a hill or on a bike, and keep it only if your sleep and your energy the next day stay steady.

'Your Heart: Cholesterol, Your Thyroid, and Why Heart Disease Is the Number 1 Risk for Women' shows how movement fits beside your cholesterol, blood pressure, and blood sugar.

Mobility, Balance, and Power

Balance prevents falls. A Cochrane review found that exercise reduced the rate of falls in older adults living at home by about 23 percent. Balance and functional exercise had the strongest evidence, programs that combined balance, function, and resistance training did better still, and tai chi also helped. A fall that breaks a hip can change a life, and balance is a skill you can train.

• Stand on 1 leg while you brush your teeth.
• Walk heel to toe down the hallway.
• Practice Qigong, whose slow weight shifts train balance with every movement.

Power fades first. Power is strength with speed: how fast you can rise from a chair, catch yourself on a stair, or step out of the way. Research shows power declines earlier and faster than strength with age, and predicts function and falls better than strength alone.

• Stand up from a chair quickly, and sit down slowly.
• Step up onto a stair briskly.
• Hop or skip, if your joints and pelvic floor allow.

The floor test. In adults aged 51 to 80, a low score on getting down to the floor and back up without using hands was linked to a much higher risk of death, and a 2025 follow-up confirmed it in men and Women. Practice getting down to the floor and back up, every day, with a hand on a chair if you need it.

Mobility. A few minutes each morning moving your shoulders, hips, and ankles through their range keeps your joints supple, as 'Movement That Soothes: Qigong, Walking, and Mobility', in the Joints chapter, explains.

Your Pelvic Floor While You Train

Lifting and jumping protect your bones, and they also ask a great deal of your pelvic floor. In a 2025 review of 5 studies, 41 to 49 percent of Women powerlifters and 37 to 54 percent of Women weightlifters reported leaking urine, most often during deadlifts and squats, and more with age, births, higher body weight, heavier loads, and competition.

Those were competitive athletes, and the lesson is to train your pelvic floor alongside your lifting.

• Exhale on the effort. Breathe out as you lift, rise, or land, and let your pelvic floor lift with the breath.
• Leaking is information. If you leak when you lift, jump, cough, or laugh, a pelvic floor physical therapist can teach you what your floor needs.
• A tight floor needs a different plan. Some Women need to release before they strengthen.

'Your Pelvic Floor and Bladder: Leaks, Urgency, UTIs, and Prolapse' holds the full picture, including 'Kegels, Done Correctly, and When Not to Do Them' and 'Your Breath, Your Diaphragm, and Your Posture'.

Qigong: Movement That Restores

Qigong is the practice I teach with my husband, Christopher, and I do it myself. Slow, rooted, flowing movement, done with the breath, helps joints move and the Nervous System settle at the same time.

Great Energy Qigong itself has not been studied in a trial. Tai chi, its cousin, has strong evidence for knee osteoarthritis and may help prevent falls, as the Joints chapter and the Cochrane review above show.

On the days your body has little to give, Qigong is movement that gives back. It can be done standing or seated.

When Exercise Becomes Too Much

Exercise is a stress your body grows stronger from, when it can recover. When the stress outruns the recovery, the same workout starts taking more than it gives.

Overtraining. A European and American sports medicine consensus describes a spectrum. At 1 end, short overreaching recovers in days to weeks. At the other, overtraining syndrome can take months to recover from.

No single blood test diagnoses it, and the signs include falling performance, fatigue, mood changes, poor sleep, and frequent illness.

Low energy availability. The International Olympic Committee's 2023 consensus names Relative Energy Deficiency in Sport, RED-S: too little fuel for the training load, harming hormones, bone, metabolism, immunity, mood, and performance, in any sex and at any level. Most of the research is in young athletes. After Menopause, a lost period can no longer serve as the warning sign, and practitioners describe low energy availability in Midlife Women who train hard and eat lightly, a group research has barely studied.

Cortisol and intensity. In a small study of 12 men, exercise at about 60 and 80 percent of maximum effort raised cortisol, while 40 percent did not. If your cortisol curve is flat, easy movement builds you, and hard sessions may dig the hole deeper. 'Blood Sugar, Light, Sleep, and Saying No', in 'Burnout and Fatigue', explains how this looked in my own recovery.

Autoimmune conditions. A 20-year review found that regular exercise has anti-inflammatory effects across Autoimmune diseases. In Autoimmune thyroid disease, moderate recreational activity was linked to lower TPO antibodies in 2 studies, while heavy physical work was linked to worse thyroid Autoimmunity, and the authors noted the data are not yet strong enough for guidelines.

Moderate and steady helps, and too much, too fast can flare. 'When Inflammation Is High, Start Low and Build', in the Joints chapter, shows how intense exercise raises inflammatory messengers, and how to build safely.

Signs your exercise has become too much:

• Sleep breaks, or you wake early, after training days.
• Your resting heart rate stays several beats above your usual for several days.
• Your heart rate variability trends down from your own baseline. Read the trend over a week or more, since 1 day tells you little.
• Fatigue that is worse the day after a workout.
• Nagging injuries, or tendon pain in a heel, an elbow, a hip, or a shoulder.
• Joint pain, swelling, or Autoimmune symptoms flaring in the days after hard sessions.
• Your cycle changes: shorter, missed, or heavier periods, harder to read in Perimenopause.
• Your mood drops, your drive fades, you feel irritable, or you catch more colds.
• Weight that climbs around your middle while you train harder and eat less.

If even modest activity leaves you wiped out for a day or more, tell your practitioner. That pattern, called post-exertional malaise, calls for careful pacing, as the Joints chapter explains.

What helps recovery. Sleep first, as 'Recovery and Sleep', in the Joints chapter, explains. Then protein at every meal, enough carbohydrate around harder sessions, an easy day after every hard 1, and, as many coaches suggest, a lighter week every 4 to 6 weeks.

A Weekly Shape

The World Health Organization recommends 150 to 300 minutes of moderate activity or 75 to 150 minutes of vigorous activity a week, muscle strengthening on 2 or more days, and, from 65 on, varied balance and strength work on 3 or more days, with less time sitting.

Here is 1 shape a week can take, as education. Let your trainer, physical therapist, or practitioner adjust it to your body.

• Every day: a walk, ideally 7,000 steps or more across the day, a few minutes of mobility, a moment of balance, and breath: inhale deep, exhale long.
• 2 to 3 days: strength training, full body, with the squat, hinge, push, pull, and carry patterns from the Joints chapter, adding load over weeks.
• 2 to 3 days: a little impact for your bones, such as jumps, hops, or stairs, as the Bones chapter describes.
• 1 day, once your base is built: short intervals, up a hill or on a bike.
• Several days: Qigong, for balance, breath, and your Nervous System.
• At least 1 day: rest and restore.

Read this chart as text

A concept diagram titled '1 shape a week can take', with the days Mon to Sun. Walk, mobility, balance, breath: every day, 7,000+ steps. Strength, full body, 2 to 3 days: planned Mon and Wed, optional Fri. A little impact, 2 to 3 days (jumps, hops, stairs): planned Mon and Wed, optional Fri. Short intervals, 1 day, once your base is built: optional Sat. Qigong, several days: planned Tue, Thu, Sat, and Sun. Rest and restore, at least 1 day: Sun. A filled dot means planned, and an open dot means optional, if you recover well. Signs it has become too much: sleep breaks after training; resting heart rate up for days; HRV trending down; more tired the next day; nagging injuries, tendon pain; flares after hard sessions; cycle changes; mood drops, more colds; weight climbs at the middle. The next morning is your coach: restored means the right amount; depleted means less. Shows the idea, not measured data. From 'A Weekly Shape' in 'Movement in Midlife'. Let your trainer or practitioner adjust it to your body.

If your cortisol is flat or your Autoimmune condition is flaring, the shape gets gentler:

• Walking and Qigong daily, at an easy pace.
• 2 short, light strength sessions a week, with body weight, bands, or light dumbbells.
• No sprints, no fasted training, and no cold plunges until your energy has been stable for several weeks.
• Then add 1 element at a time, and read the next 48 hours.

The full sample week, with strength and impact days laid out, is in 'Strength Training: The Command Your Bones Are Waiting For', in the Bones chapter.

Your energy the next day is your most honest coach. If you wake restored, you gave your body the right amount. If you wake depleted, it asked for less.