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RFK Is a Big Proponent of Exercise as Medicine. We Agree.

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RFK Is a Big Proponent of Exercise as Medicine. We Agree.

IT’S GREAT TO see Robert F. Kennedy Jr elevating exercise in the national conversation, and at Men’s Health we’ve been saying exercise is strong medicine for 35 years—because nothing advances health and can’t be patented by Pharma as much as consistently working out.

We’ve been reporting on the styles of strength and fitness that you need to optimize your health for years—and the pandemic, which saw those who struggled with fitness suffer more than strong, healthy people, put a spotlight on that. Since then, gym memberships are booming; 2023 saw with 72.9 million people with gym memberships.

These days, healthspan (the portion of life during which you’re able to do what you want instead of being frail and weak) is a buzzword, as we’ve covered in our stories with Peter Attia, M.D., author of Outlive: The Science and Art of Longevity. According to Attia: “Exercise is by far the most potent longevity ‘drug.’ The data are unambiguous: Exercise not only delays actual death but also prevents both cognitive and physical decline better than any other intervention. It is the single most potent tool we have in the health-span-enhancing toolkit—and that includes nutrition, sleep, and meds.”

Over the years MH has covered the ideal amount of exercise people should do, and, like Dr. Attia, MH recommend more exercise weekly—ideally 7 to 10 hours— than the government’s regulations. Currently, the CDC says:

Adults need at least 150 minutes of moderate-intensity physical activity a week. There are multiple ways to break this up, but an easy way to think about it is that you should fitness 30 minutes a day, 5 days a week.

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Adults also need 2 days of muscle-strengthening activity each week.
The CDC does also note that you’ll gain even more health benefits if you go beyond 150 minutes of moderate-intensity activity or week – or if you have 75 minutes a week of vigorous-intensity activity (think: a pickup hoops game).

The latest research reveals that you need a combination of different intensities of cardio, as well as consistent strength training and stability exercises to be your best self. Here’s how much you should get to be at your best.

Your Cardio Goals

4+ Hours/Week

Dr. Attia says your VO2 max is a good proxy measure of physical capability: It indicates what you can—and cannot—do. Studies suggest that VO2 max will decline by roughly 10 percent per decade after your 20s and up to 15 percent per decade after age 50. Increasing your VO2 max makes you functionally younger. So having average or even above-average VO2 max has long-term ramifications. Dr. Attia’s goal for his patients is to be at an excellent level for the decade (or two) below their age. Many smartwatches can estimate VO2 max, but a real test (e.g., the Cooper 12-Minute Run) is better and VO2-max charts are easy to find online.

The good news?

You can improve VO2 max by as much as 17 percent per year. But you need to put in the work. Dr. Attia advises that patients do at least three 45 to 60-minute cardio sessions per week in zone 2 of their heart rate (57 to 65 percent of max heart rate, a gentle intensity during which you can say a complete sentence). They can involve running, cycling, rowing, even rucking. This is optimal for the health and efficiency of your mitochondria, the factories that burn fat and glucose to power your muscles and that decline as you age.

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Along with cruising in zone 2, Dr. Attia recommends that patients do a weekly 30-minute VO2-max effort, such as high-intensity intervals that last anywhere from 3 to 8 minutes. For instance, you can run, ride, row, or ruck uphill for four rounds of four minutes, with four minutes of rest in between. “This is a much higher level of intensity—a hard, minutes-long effort,” he says. By testing your VO2 max and committing to cardio, you can nudge up your score and win in the long run.

Your Strength Goals

3+ Hours/Week

Age-related muscle loss—which starts insidiously in your 40s and picks up the pace in your 50s—is called sarcopenia, from the Greek words for “poverty of the flesh,” says Dr. Attia. Think of strength training as a form of retirement saving, he says. Just as you retire with enough money saved up to sustain you for the rest of your life, you want to reach an older age with enough of a “reserve” of muscle to protect you from injury and allow you to continue to pursue the activities that you enjoy. That muscle also acts as a buffer against the natural age-related decline in muscle mass. The larger the reserve you build up early on, the better off you will be over the long term. And, there are many categories to train:

Grip Strength

New research reveals that American adults have far weaker grip strength—and thus less muscle mass—than they did even a generation ago. In 1985, men ages 20 to 24 had an average right-handed grip strength of 121 pounds, while in 2015, men of the same age averaged just 101 pounds. Dr. Attia notes that many studies suggest that grip strength predicts how long you are likely to live. In these studies, it’s acting as a proxy for overall strength, but it’s also a broader indicator of general robustness and your ability to protect yourself if you slip.

Try These: Weighted carries, dead hangs, and plate pinches. Your goal: Do a farmer’s carry with a quarter of your bodyweight in each hand for one minute.

Concentric and Eccentric Loading

You need strength when your muscles are shortening (concentric) and lengthening (eccentric) under load. In other words, you must be able to lift the weight up and put it back down, slowly and with control. In life, especially as you age, eccentric strength is where many people falter.

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Eccentric strength in the quads is what gives us the brakes required when we are moving down an incline or walking down a set of stairs. It’s really important to keep us safe from falling.

Try These: Focus on the “down” phase of lifts, whether doing pullups, curls, or deadlifts. Practice slow stepdowns—can you step off an 18-inch box in three seconds or more?

Pulling Motions

Pulling motions help bulletproof your shoulders against injury, and they’re critical in other underrated ways, too, driving your motion when you open car doors, lift boxes from the floor, and give somebody a hug.

Try These: Practice pulling at all angles. Start with dumbbell rows and progress to overhead moves like pullups.

Hip Hinges

You bend at the hips—not the spine—to harness your body’s largest muscles, the glutei maximi and the hamstrings. It is a very powerful move that is essential to life. If you are jumping, picking up a penny off the sidewalk, or simply getting out of a chair, you are hip hinging.

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Try These: Deadlifts, hip thrusts, and kettlebell swings.

With all this exercise, your body may need more TLC. And that’s where stability and mobility training and low impact things like yoga and walking come in. These kinds of activities help your body recover and you can target weak areas to build your overall strength.

If you need somewhere to start and aren’t sure how to get going: Try this simple bodyweight workout: Set a timer for 10 minutes. Start by doing 30 seconds plank walkout, then do 30 seconds of alternating reverse lunges, then do 30 seconds of jumping jacks. Rest 30 seconds, then repeat until time is up. This simple session fires up your core and burns calories, and it gets you moving in multiple planes, an underrated quality you want to preserve for longevity. It also challenges many of the key functions we’ve already listed above. A bonus: As you gain fitness, this can become a warmup drill for any workout you do.

If you’re looking for exercise guidance, check out our Men’s Health MVP Training Lab, which is full of month-long workouts that can help you improve your VO2 max, build total-body muscle and strength, shed excess pounds, and get into optimal shape.

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Higher fitness levels linked to lower risk of depression, dementia – Harvard Health

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Higher fitness levels linked to lower risk of depression, dementia – Harvard Health
research review

People with high cardiorespiratory fitness were 36% less likely to experience depression and 39% less likely to develop dementia than those with low cardiorespiratory fitness. Even small improvements in fitness were linked to a lower risk. Experts believe that exercise’s ability to boost blood flow to the brain, reduce bodywide inflammation, and improve stress regulation may explain the connection.

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These 20-Minute Burpee Workouts Replaced His Entire Gym Routine – and Transformed His Physique

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These 20-Minute Burpee Workouts Replaced His Entire Gym Routine – and Transformed His Physique

While many swear by them, most people see burpees as a form of punishment – usually dished out drill sergeant-style by overzealous bootcamp PTs. Often the final blow in an already brutal workout, burpees are designed to test cardiovascular fitness, muscular endurance and mental grit. Love them or loathe them, they deliver every time.

For Max Edwards – aka Busy Dad Training on YouTube – they became a simple but highly effective way to stay fit and lean during lockdown. Once a committed powerlifter, spending upwards of 80 minutes a day in the gym, he was forced to overhaul his approach due to fatherhood, lockdown and a schedule that no longer allowed for long, structured lifting sessions.

‘Even though I was putting in hours and hours into the gym and even though my physique was pretty good, I wasn’t becoming truly excellent at any physical discipline,’ he explained in a YouTube video.

‘I loved the intentionality of training,’ says Edwards. ‘The fact that every session has a point, every rep in every set is helping you get towards a training goal, and I loved that there was a clear way of gauging progression – feeling like I was developing competence and moving towards mastery.’

Why He Walked Away From Powerlifting

Despite that structure, Edwards began to question whether powerlifting was sustainable long-term.

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‘My sessions were very taxing on my central nervous system. I was exhausted between sessions. It felt as if I needed at least nine hours of sleep each night just to function.’

He also noted that his appetite was consistently high.

But the biggest drawback was time.

‘I could not justify taking 80 minutes a day away from my family for what felt like a self-centred pursuit,’ he says.

A Simpler Approach That Stuck

‘Over the course of that year I fixed my relationship with alcohol and I developed, for the first time in my adult life, a relationship with physical training,’ says Edwards.

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With limited time and no access to equipment, he turned to burpees. Just two variations, four times a week, with each session lasting 20 minutes.

‘My approach in each workout was very simple. On a six-count training day I would do as many six-counts as I possibly could within 20 minutes. On a Navy Seal training day I would do as many Navy Seal burpees as I could within 20 minutes – then in the next workout I would simply try to beat the number I had managed previously.’

This style of training is known as AMRAP – as many reps (or rounds) as possible.

The Results

Edwards initially saw the routine as nothing more than a six-month stopgap to stay in shape. But that quickly changed.

‘I remember catching sight of myself in the mirror one morning and I was utterly baffled by the man I saw looking back at me.’

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He found himself in the best shape of his life. His energy levels improved, his resting heart rate dropped and his physique changed in ways that powerlifting hadn’t quite delivered.

‘It has been five years since I have set foot in a gym,’ he says. ‘That six-month training practice has become the defining training practice of my life – and for five years I have trained for no more than 80 minutes per week.’

The Burpee Workouts

1/ 6-Count Burpees

20-minute AMRAP, twice a week

How to do them:

  • Start standing, feet shoulder-width apart
  • Crouch down and place your hands on the floor (count 1)
  • Jump your feet back into a high plank (count 2)
  • Lower into the bottom of a push-up (count 3)
  • Push back up to plank (count 4)
  • Jump your feet forward to your hands (count 5)
  • Stand up straight (count 6)

20-minute AMRAP, twice a week

How to do them:

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  • Start standing, feet shoulder-width apart
  • Crouch down and place your hands on the floor
  • Jump your feet back into a high plank
  • Perform a push-up (chest to floor)
  • At the top, bring your right knee to your right elbow, then return
  • Perform another push-up
  • Bring your left knee to your left elbow, then return
  • Perform a third push-up
  • Jump your feet forward
  • Stand or jump to finish

Headshot of Kate Neudecker

Kate is a fitness writer for Men’s Health UK where she contributes regular workouts, training tips and nutrition guides. She has a post graduate diploma in Sports Performance Nutrition and before joining Men’s Health she was a nutritionist, fitness writer and personal trainer with over 5k hours coaching on the gym floor. Kate has a keen interest in volunteering for animal shelters and when she isn’t lifting weights in her garden, she can be found walking her rescue dog.

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Six ways your smartwatch is lying to you, according to science

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Six ways your smartwatch is lying to you, according to science

You check your smartwatch after a run. Your fitness score has dropped. You’ve burnt hardly any calories. Your recovery score is really low. It’s telling you to take the next 72 hours off exercise.

The worst bit? The whole run felt amazing.

So why is your watch telling you the opposite?

Ultimately, it’s because smartwatches and other fitness trackers aren’t always accurate.

Smartwatches can shape how you exercise

Using wearable fitness technology, such as smartwatches, has been one of the top fitness trends for close to a decade. Millions of people around the world use them daily.

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These devices shape how people think about health and exercise. For example, they provide data about how many calories you’ve burnt, how fit you are, how recovered you are after exercise, and whether you’re ready to exercise again.

But your smartwatch doesn’t measure most of these metrics directly. Instead, many common metrics are estimates. In other words, they’re not as accurate as you might think.

1. Calories burned

Calorie tracking is one of the most popular features on smartwatches. However, the accuracy leaves a lot to be desired.

Wearable devices can under- or overestimate energy expenditure (often expressed as calories burned) by more than 20 per cent. These errors also vary between activities. For example, strength training, cycling and high-intensity interval training can lead to even larger errors.

This matters because people often use these numbers to guide how much they eat.

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For example, if your watch overestimates calories burned, you might think you need to eat more food than you really need, which could result in weight gain. Conversely, if your watch underestimates calories burned, it could lead you to under-eat, negatively impacting your exercise performance.

2. Step counts

Step counts are a great way to measure general physical activity, but wearables don’t capture them perfectly.

Smartwatches can under-count steps by about 10 per cent under normal exercise conditions. Activities such as pushing a pram, carrying weights, or walking with limited arm swing likely make step counts less accurate, as smartwatches rely on arm movement to register steps.

For most people, this isn’t a major problem, and step counts are still useful for tracking general activity levels. But view them as a guide, rather than a precise measure.

3. Heart rate

Smartwatches estimate your heart rate using sensors that measure changes in blood flow through the veins in your wrist.

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This method is accurate at rest or low intensities, but gets less accurate as you increase exercise intensity.

Arm movement, sweat, skin tone and how tightly you wear the watch can also impact the heart rate measure it spits out. This means the accuracy can vary between people.

This can be problematic for people who use heart rate zones to guide their training, as small errors can lead to training at the wrong intensity.

4. Sleep tracking

Almost every smartwatch on the market gives you a “sleep score” and breaks your night into stages of light, deep and REM sleep.

The gold standard for measuring sleep is polysomnography. This is a lab-based test that records brain activity. But smartwatches estimate sleep using movement and heart rate.

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This means they can detect when you’re asleep or awake reasonably well. But they are much less accurate at identifying sleep stages.

So even if your watch says you had “poor deep sleep”, this may not be the case.

5. Recovery scores

Most smartwatches track heart rate variability and use this, with your sleep score, to create a “readiness” or “recovery” score.

Heart rate variability reflects how your body responds to stress. In the lab it is measured using an electrocardiogram. But smartwatches estimate it using wrist-based sensors, which are much more prone to measurement errors.

This means most recovery metrics are based on two inaccurate measures (heart rate variability and sleep quality). This results in a metric that may not meaningfully reflect your recovery.

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As a result, if your watch says you’re not recovered, you might skip training — even if you feel good (and are actually good to go).

6. VO₂max

Most devices estimate your VO₂max — which indicates your maximal fitness. It’s the maximum amount of oxygen your body can use during exercise.

The best way to measure VO₂max involves wearing a mask to analyse the amount of oxygen you breathe in and out, to determine how much oxygen you’re using to create energy.

But your watch cannot measure oxygen use. It estimates it based on your heart rate and movement.

But smartwatches tend to overestimate VO₂max in less active people and underestimate VO₂max in fitter ones.

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This means the number on your watch may not reflect your true fitness.

What should you do?

While the data from your smartwatch is prone to errors, that doesn’t mean it is completely worthless. 

These devices still offer a way to help you track general trends over time, but you should not pay attention to daily fluctuations or specific numbers.

It’s also important you pay attention to how you feel, how you perform and how you recover. This is likely to give you even more insight than what your smartwatch says.

Hunter Bennett is a lecturer in exercise science at Adelaide University. This piece first appeared on The Conversation.

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