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Once you hit your 40s, your metabolism starts to decrease, which can be a frustrating but normal part of aging. Luckily, engaging in strength training can help your metabolism function better. We are here to support you and have discovered the most effective strength workouts to combat a sluggish metabolism in your 40s.
As you pass 40, not only do you add more candles to your birthday cake, but your body also begins to experience changes in its metabolism. Suddenly, the methods that used to keep you in shape and feeling healthy may not be as effective. You are not alone in this experience, and you are not at fault,” notes Katie Leonard, a certified personal trainer at Life Time Irvine. “The metabolism tends to slow down as we get older, particularly during the transition into perimenopause and menopause. However, the bright side is that targeted strength training can be pivotal in maintaining a well-functioning metabolism, high energy levels, and a strong physique.”
Why Metabolism Slows Down After 40
As you age, there are several internal shifts that all play a part in a metabolism slowdown.
Hormonal Changes

During perimenopause, your estrogen levels begin to decrease and androgen levels increase.
According to Katie, this shift in hormones can lead to changes in fat distribution, often resulting in an accumulation of visceral fat around the belly. It can also heighten inflammation and disrupt our body’s natural signals of feeling full, causing us to feel hungrier and less satisfied after meals.
Muscle Loss

It’s quite natural to lose lean muscle as part of the aging process, also known as sarcopenia.
Katie tells us, “Since muscle is more metabolically active than fat, this loss means fewer calories burned at rest.”
Thyroid Function

Thyroxine (T4), the thyroid hormone, is a key player when it comes to regulating how many calories your body torches while resting. This is also known as your basal metabolic rate (BMR).
“A sluggish thyroid, which becomes more common with age or hormonal imbalance, often leads to a reduced BMR,” Katie points out.
Insulin Resistance

Women approaching middle age are more susceptible to insulin resistance and blood sugar swings because of fluctuating sex hormones.
Katie tells us, “This not only zaps energy but also encourages fat storage, cravings, and fatigue.”
You can combat these issues head-on by incorporating regular exercise into your lifestyle. Here are five strength workouts you can add to your weekly rotation that’ll keep your metabolism working fast after 50. They’re excellent compound full–body movements that involve heavy lifting.
5 Strength Workouts That Keep Your Metabolism Fast After 40
Perform 4 to 5 rounds of the below exercises.
Deadlift

- Stand tall with your feet placed hip-distance apart and a barbell positioned over your midfoot.
- Hinge at the hips and take hold of the bar just outside knee-width.
- Keep your back flat, chest tall, and shoulders slightly ahead of the bar.
- Drive through both heels to lift the bar, simultaneously extending your knees and hips.
- Stand tall at the top of the movement.
Walking Lunges + Bicep Curls

- Stand tall holding a dumbbell in each hand, arms completely extended at your sides, palms forward.
- Step one foot forward into a lunge, descending until both knees form 90 degree angles and your back knee hovers above the floor.
- Once you reach the bottom, do a bicep curl, keeping your elbows close to your torso as you perform the curl.
- Lower the weights.
- Push through your front heel to rise back up.
- Step forward with the opposite leg.
Pushup

- Begin in a high plank with your hands placed just outside shoulder-width and feet hip-width apart.
- Engage your core, squeeze your glutes, and maintain a straight body.
- Lower your chest toward the ground.
- Press back up to a high plank.
Bent-Over Row

- Stand tall with your feet hip-distance apart, holding a set of dumbbells or a barbell in front of you.
- Hinge at the hips until your torso becomes parallel to the floor.
- Maintain a flat back and soft knees.
- Allow the weights to lower with your arms completely extended.
- Row the dumbbells up to your torso.
- Use control to lower the weights to the start position.
Front Squat

- Position the barbell on your front shoulders using a clean grip or the front rack position.
- Stand with your feet shoulder-distance apart, keeping your elbows high.
- Engage your core as you lower into a squat.
- Keep your torso tall as you lower until your thighs are parallel to the floor.
- Press through your heels to rise up.
Alexa Mellardo