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The Medical Minute: How to get started with physical fitness

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The Medical Minute: How to get started with physical fitness

The first hints of summer are in the air along with the lure of the outdoors. But maybe after a long winter of hibernating inside you don’t feel ready for it.

May 2, 2024Penn State Health News

You aren’t alone. Only 24% of adults in the U.S. met the 2018 Physical Activity Guidelines for Americans for aerobic and muscle-strengthening activities, according to the U.S. Centers for Disease Control and Prevention.

The complex, high-energy world of burpees, hydration systems and interval training might seem inaccessible to the beginner. How do you even start to get in shape?

Breianna Hummer-Bair, a clinical exercise physiologist at Penn State College of Medicine, says your road to physical fitness needn’t be so intimidating. You don’t need pricey equipment or hours and hours of difficult workouts that turn you into a pile of sore muscle and sweat.

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Do I even need a gym?

“No, not necessarily,” Hummer-Bair said.

In fact, if you’re just getting started with trying to get fit, you couldn’t have picked a better time of year. Let the outdoors be your gym.

That doesn’t mean reps of curls with boulders or chin ups on tree branches. Nor do you have to join the sweat-soaked runners you might see streaking past on a warm day.

“In general, just being outside is a good thing,” she said. If you have children, go outside and play with them. Take the dog for a walk, or just take your stroll sans pooch.

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“We don’t necessarily count them as exercise, all those small things that we do where we’re not necessarily going to a gym and setting aside an hour of time,” she said. “All those little activities add up and count as exercise and physical activity, just not in the way we all typically think about exercise.”

What if you’re just set on joining a gym? What kinds of things should you look for?

“You want to find a place where you’re comfortable,” Hummer-Bair said. “You want to find a place with good cleanliness protocols that you can follow so you don’t get sick and can continue to exercise. But you also need to find a place that has a variety of options for you.”

Don’t lock yourself in, Hummer-Bair said. For example, don’t join a gym that specializes only in yoga if you aren’t sold on the idea of yoga yet. “If you’re just starting you might not know what you’re interested in,” she said.

Look for options with cardiovascular equipment ― treadmills, stair-steppers, elliptical machines and stationary bicycles ― and choices for the kinds of available resistance training you might try, both free-weights and machine.

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Some gyms offer classes. You might like the group atmosphere and it could open you up to exercises you never tried before.

Don’t be afraid to try a gym and leave to find another one if you don’t like it. “A lot of times we give up and say, ‘Oh, I’m just not a gym person,’” she said. “Well that’s not necessarily true. Perhaps you just haven’t found the right gym.”

What kinds of questions should you ask the staff?

“I would ask if there are trained fitness professionals there,” Hummer-Bair said. Ask about credentials. Some gym staff members are fitness fanatics. Maybe they’ve obtained a certificate online. Nothing wrong with that ― their experience can come in handy.

Others, like Hummer-Bair, have obtained college degrees in exercise and can draw from a deep well of knowledge to keep you safe and help you achieve the goals you’re looking for using proven, scientific methods. A degree in exercise physiology or kinesiology can definitely be an asset to a newbie. That doesn’t mean you should avoid a gym where the staff has those same kinds of credentials. Instead, you’ll find some staff members have specialized training in specific types of workouts, and those can be helpful, as well, Hummer-Bair said.

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Ask about the cleanliness rules. Does the staff regularly clean the machines? Do they require members to wipe down their equipment after they use it?

What kinds of clothing and apparel do you need?

“You don’t need to go out and buy a whole new wardrobe,” Hummer-Bair said.

Start with a comfortable pair of stretchy pants or shorts and a top that will keep you cool. “You want to be comfortable and be able to move,” she said.

Body image is a major reason some people avoid the gym and skip working out altogether. “You want to be covered as much as you need to be so that you’re comfortable,” Hummer-Bair said. “You don’t need clothes that are too loose or too tight so that you feel self-conscious. If you’re not comfortable you’re not going to be able to do the exercises in a way that they’re supposed to be done, safely.”

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You’ll need the right kind of footwear for the activity you’ll be doing, and there are tons of options. Here again, Hummer-Bair suggests trial and error. Find a footwear retailer that can work with you on what works best for you based on your activity and physiological needs.

OK, you’ve got your stretchy pants and your sneakers and you found your gym. What are we doing to get fit?

“It doesn’t have to be a lot, especially if you’re just starting out,” Hummer-Bair said. You don’t have to transform yourself into a gym rat ― one of the people you see spending two or three hours straining over weights or sprinting on treadmills.

Starting out slow is key, she said. If you go too fast right out of the gate, you wind up with sore muscles, at best. At worst, you might seriously injure yourself.

But here is where it gets exciting ― you have tons of options. You can bike, hike, run, play frisbee, skip rope, swim or dance. You can do it at home, in the park, on a mountain top, at a friend’s house or at the gym. In an online community, in a class or by yourself.

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“There are so many opportunities,” Hummer-Bair said.

Related content:

The Medical Minute is a weekly health news feature produced by Penn State Health. Articles feature the expertise of faculty, physicians and staff, and are designed to offer timely, relevant health information of interest to a broad audience.

If you’re having trouble accessing this content, or would like it in another format, please email Penn State Health Marketing & Communications.

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Fitness

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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