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Health warnings on exercise equipment: Should you worry? – Harvard Health

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Health warnings on exercise equipment: Should you worry? – Harvard Health

There are warnings just about everywhere you look: The coffee you’re about to drink is hot! Construction ahead! This product may contain peanuts!

In many cases, the reasons for these warnings are clear. But sometimes warnings raise more questions than they answer. When I was at the gym recently, these warnings on the exercise bike and treadmill were hard to miss in a bright red font:

  • Obtain a medical exam before beginning any exercise program.
  • Overexercise may result in serious injury or death.
  • If you feel faint, dizzy, or have pain stop exercising immediately.

What exactly did the warning writers mean by “any exercise program”? What constitutes overexercise? Does having any pain anywhere mean you should stop working out?

Finally, I wonder: might these warnings cause unnecessary worry that actually discourages people from exercising?

Is it safe to start exercising without checking with a doctor?

A doctor’s approval isn’t necessary for most of us. Most people can safely begin a low-intensity exercise program and slowly increase their efforts over time. Choose activities that would allow you to carry on a conversation, such as:

  • using light weights that are easy for you to lift
  • walking at a leisurely pace
  • biking at a leisurely pace (less than 5 mph)
  • stretching and balancing activities
  • light housework or yard work.

If you’re starting at a low fitness level, make small increases in your workout over time. For example, if you start out walking 10 minutes a day, add one minute to your walk every week or two. Once you’re walking 20 minutes a day, try picking up the pace a bit.

Who should be careful about exercising?

Of course, exercise is riskier if you have certain health conditions. It makes sense to ask a health care professional to make exercise recommendations if you’re concerned about your health or have any of these conditions:

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  • Coronary artery disease, including symptoms of angina or a previous heart attack. Exercise that’s too much too soon could stress the heart and trigger a heart attack or dangerous heart rhythm. Lower-intensity workouts (such as short walks at a comfortable pace) may be preferable, at least until it’s clear that you can tolerate more.
  • Exercise-induced asthma. Your doctor may recommend inhaled treatment to open up airways in your lungs just before or during exercise.
  • Muscle disease, such as a metabolic myopathy. Your doctor may discourage you from engaging in certain exercises, such as sprinting or long-distance running.
  • Back pain. Low impact exercise, such as biking or swimming, may be a better choice for people with back pain than higher-impact options, such as jogging or basketball.

If exercise is so good for you, why the warnings?

Let’s review possible reasons for certain warnings:

  • Having a medical examination before starting an exercise program might uncover a condition that makes exercise risky. The best example is probably coronary artery disease, which could trigger a heart attack during intense exercise. Fortunately, sudden heart problems during exercise are relatively rare (though you might think otherwise based on TV and movies, including an episode from the Sex and the Cityreboot).
  • Overexercise is not a well-defined medical term. But it’s true that suddenly exercising at high intensity when you’re not used to it might be hazardous.
  • Stopping exercise if you’re feeling faint or dizzy presumably refers to concerns about severe dehydration or other causes of low blood pressure.
  • Warnings about pain could refer to chest pain that might be a sign of heart trouble. Or it could be a warning about a type of severe muscle damage called rhabdomyolysis (which may complicate prolonged or intense exercise).

Of course, it’s also possible these warnings have little to do with your health and everything to do with lawyers! That is, the equipment manufacturers might hope these warnings will ward off lawsuits from people who suffer a medical problem while using their equipment.

Are these warnings helpful?

Probably not.

All the warnings, alerts, and cautions in our everyday lives can become background noise. Despite red letters and bold fonts, warnings like these are easily overlooked.

Nor do they add much. My guess is that most people experiencing significant dizziness or pain during a workout will stop what they’re doing even without reading a warning label. And serious medical conditions arising during exercise are rather rare, so the impact of warning everyone about them is likely small.

The bottom line

Don’t be overly alarmed by alerts slapped on exercise equipment. True, it’s best not to drop weights on your foot or exercise way too hard or long. If you are worried about workout risks or have been advised to be especially careful about exercising, it’s reasonable to talk about it with your doctor.

But that conversation isn’t necessary for most people, including those with well-controlled chronic illness such as high blood pressure, diabetes, or coronary artery disease. In fact, regular exercise helps treat many illnesses.

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Exercise is among the most important things you can do to improve your health. And inactivity is a generally a much bigger risk than exercising.

So, if you see warnings on the gym equipment at your next workout, keep this in mind: there are much riskier things to worry about. Like hot coffee.

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Fitness

You don't think pole dancing's for you? That's what Stacey thought too and now she's 'obsessed'

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You don't think pole dancing's for you? That's what Stacey thought too and now she's 'obsessed'

Stacey Windsor gets some funny looks when she explains what activity got her hooked on fitness.

The Naracoorte local has been a dancer her whole life but, when it came to finding a way to stay fit throughout adulthood, she could never quite get into conventional sport. 

That’s when she tried pole dancing, despite initially feeling that swinging around a pole in front of people probably wasn’t for her.  

“I just saw classes advertised in my local neighbourhood, so I went along and I just fell madly in love with it,” she says. 

Stacey Windsor started pole dancing for fitness while living in Melbourne.(ABC South East SA: Sam Bradbrook)
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“I finally understood how it felt to be strong and to really challenge myself. 

“I’ve always done dance for fun, but now it’s added that element of fitness that I never understood, but now I’m obsessed.”

After a stint away from Naracoorte in Melbourne, Ms Windsor, who performs and teaches under the stage name Dee Dee, is back in her home town and has established her own pole dancing studio. 

A woman spinning on a dancing pole.

Ms Windsor says pole dancing is a tough workout.(ABC South East SA: Sam Bradbrook)

Despite Naracoorte being known as a small, conservative country town, she hopes it will take off with locals looking for a challenge. 

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“I always tell people it’s harder than it looks but it’s also really addictive and way more fun than anything I’ve ever done,” she says. 

“You don’t need anything to start, I think that’s one of the biggest myths where people say, ‘Now I want to get fit before I start.’

“No, you get yourself fit doing this.” 

‘It changed my life’ 

Naracoorte mum Imogen Fudge has a similar background to Ms Windsor, as she too grew up dancing in a range of disciplines.

She is one of the first Naracoorte women to sign up for pole classes and said she wanted to rebuild her core strength after having a baby. 

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A young mother with her daughter.

Naracoorte mum Imogen Fudge with her daughter, Maeve.(Supplied)

“There’s a bit of a social side of it as well. Being a mum and getting out and about is important,” she says.

“It will be really good, I think, for both my mental health and for my physical fitness as well, allowing me to build up my core strength again. 

“You don’t realise how much you use and lose your core when you have a baby.”

Posted , updated 

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Fitness

To Better Control Blood Sugar, Look to the Time of Day You Exercise

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To Better Control Blood Sugar, Look to the Time of Day You Exercise
  • New research points to the benefits of exercise timing on blood sugar regulation, pointing to evening exercise as the best option.
  • Researchers say to focus on moderate- to vigorous-intensity exercise done after 6 p.m. to lower blood glucose levels.

Although blood sugar control is essential for those with diabetes, it’s also key for maintaining health overall. Research indicates that blood sugar levels can affect a range of physical functions, including hormone regulation, body composition, digestive processes, and even cognitive health.

That’s why keeping control of blood glucose levels is important, and one way to help might include doing moderate- to vigorous-intensity exercise in the evening, according to a new study in Obesity.

Researchers looked at 186 men and women who were overweight or had obesity and were diagnosed with at least one metabolic impairment, such as high blood pressure or high cholesterol. Over a 14-day period, researchers tracked their physical activity and glucose levels, along with the time of day for exercise. Morning exercise was defined as before noon, with afternoon exercise between noon and 6:00 p.m, and evening exercise after that.

At the end of the two weeks, those who did more than 50 percent of their exercise in the evening had significantly lower glucose levels compared to those who were sedentary, and better glucose regulation than participants who mainly exercised in the mornings or afternoons.

The effects were especially notable for those who’d struggled with regulating their blood sugar before participating in the study, according to co-author Antonia Clavero Jimeno, Ph.D.(c), researcher in the department of physical education and sports at the University of Granada in Spain.

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Although the study participants were specifically chosen based on metabolic factors and sedentary behavior, he told Bicycling that previous evidence has shown that the results might be the same for those without those factors, and who already exercise regularly.

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“In fact, the impact of both physical activity volume and timing for glycemic control may be amplified in those with higher activity levels,” he said.

That’s backed up by previous research looking at active people who were assessed for blood sugar changes based on when they exercised. In that study, published in 2022, those who performed moderate-to-vigorous activity in the afternoon had 18 percent lower insulin resistance compared to morning exercisers, and the evening group fared even better, with a 25 percent reduction in insulin resistance.

One factor that was not explored in either study was the role of dietary changes, and this is an area that needs more research, said Clavero Jimeno. Determining whether a strategy like time-restricted eating—also called intermittent fasting—would be helpful or harmful to glucose regulation when paired with evening exercise is a next step, and is already being studied by Clavero Jimeno and his team.

“Dietary intake is, of course, recognized as crucial for glycemic control, and may influence the results overall,” he said. “But in the absence of that information, this current study does emphasize that if you want better control of your glucose levels, evening exercise, done at a higher intensity, may be beneficial.”

Headshot of Elizabeth Millard

Elizabeth Millard is a freelance writer focusing on health, wellness, fitness, and food. 

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I exercise less than ever but I'm still fit at 68 – here's how

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I exercise less than ever but I'm still fit at 68 – here's how

Exercise has never been a chore for me. It’s how I start my day and I look forward to it, which I know some people will find hard to believe.

Just a few short years ago I had quite a weekly routine that saw me do two yoga classes, at least one long hike and between four to six gym sessions a week. These sessions would alternate between cardio and weights, each session an hour or more long.

But then came the pandemic. I was the last person left in my gym before we locked down. I vividly remember my last workout because I looked around and there was no one else there. Just me and all the machines. I thought to myself, “What if they close the gyms, what will I do?”

Glynis’ workout routine changed during the pandemic

The next day we were in lockdown and my exercise regime has never been the same since. Even now, more than two years after the pandemic, I hardly ever go to the gym. And I feel great and just as fit as before.

How is this possible I hear you ask?

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To begin with, there was no choice. We were in lockdown and that was that. I did what many people did and discovered the many workout videos available on YouTube.

I invested in some weights and tried to keep up with my previous regime. Yoga classes were by Zoom and walks in the park were still possible.

But inevitably things began to shift. I found I was using slightly lighter weights as the YouTube workouts tended to have more repetitions and therefore a lighter weight was needed. And I found most of the sessions I was doing were just thirty minutes long, half the length I was used to.

 INSPIRATION: Just like Victoria Beckham, I’ve ditched restrictive diets and punishing exercise at 50 

This suited me because the pandemic turned out to be a very busy time for me. While most actors were completely unable to work, I found myself doing a lot of voiceovers, mostly narrating documentaries. I was able to do this from home and did forty documentaries in the first lockdown period alone. I also expanded my Ageless by Glynis Barber website

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Smiling woman in a green shirt
Glynis has a relaxed approach to working out

I had founded the website ten years previously to share my health, beauty and pro-ageing tips, after being asked constantly about what my secret was on social media. The pandemic gave me time to create an Ageless YouTube channel as well and to put Ageless on Instagram.

At the tail end of the pandemic, I got cast in Hollyoaks and so began a weekly commute to Liverpool.

I was filming five days a week most weeks with early starts and a late finish. Working out became almost impossible. And so, my already somewhat reduced routine, became almost non-existent.

I would work out on the weekends and if ever I had a morning off during the week, I would try and squeeze one in. But I was also tired. What with commuting, filming, writing Ageless articles, making YouTube videos as well as doing my voiceovers, I was run ragged. I felt like I had three full-time jobs, and something had to give.

Pushing myself too far

I’ve always been a person who pushes herself, who tries to do everything thrown at her, but it was all too much.

I felt a real shift in my thinking at this point. I decided I was going to cut myself some slack. For the first time in my adult life, I was going to give myself permission not to work out and not to feel bad about it.

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 INSPIRATION: I’m more energetic than ever at 61 – here’s how 

I would do it whenever I could and when I felt up to it. I got into the routine of getting up ten minutes earlier on filming days and would do a ten-minute yoga routine. This gave my body a wonderful stretch and it was amazing how this short routine set me up for the day.

Listening to my body

There were also days off when I just felt so exhausted from my gruelling schedule that I felt a workout was not the right thing for me. Instead, I would take my dog for a walk. This felt good and I started really listening to my body and what it needed.

My workouts now depend on the time I have available and how I feel. I’ve found the YouTube videos at home so wonderfully convenient and wonder where I used to find the time to drive to the gym and do those long workouts.

Woman in gym clothes in a workout studio
Glynis is less strict about her exercise regime at 68

I now go to the gym occasionally but have been too busy for it to become a regular thing. Now that I’ve finished with Hollyoaks filming, I will make more of an effort and will probably go at least once a week. But I’ve found that the thirty-minute sessions at home suit me. I no longer feel the need for longer sessions.

 DISCOVER: I’m healthier than ever at 70 – here’s how I stay at my best 

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The proof

Research shows that I may be onto something here. Make no mistake, we need exercise, but the latest research shows that we don’t need to do long or intense sessions. In fact, the research shows that many people, in their quest for health, are, in fact, overdoing it.

Dr. James O’Keefe, a cardiologist with the Mid-America Heart Institute at St. Luke’s Hospital in Kansas City, published a meta-analysis with three co-authors on the subject. Dr. O’Keefe says that the first twenty minutes of exercise give you the most benefit.

 EXPERT ADVICE: Over 60? Add this strengthening exercise to your daily routine 

His systematic review showed that if you move from a sedentary lifestyle to gently starting to exercise, you will have a decrease in many chronic diseases as well as mortality.

In other words, the benefits of exercising are immense. But he also found that people at the other end of the spectrum, doing a high volume of vigorous exercise, start to lose those benefits.

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He goes on to say, however, that you can’t overdo moderate exercise, loosely defined as still being able to have a conversation while working out.

woman smiling in a dark top
Glynis’ workout regime shifted

He classes many regular everyday activities as moderate exercise eg. gardening, walking, swimming or housework. There are more health benefits to these moderate activities than vigorous exercise.

Exercise for over 45s

He stresses that over the age of 45, exercise should be fun and more about stress reduction and less about competitiveness. And whilst strength training is important for improving muscle mass, which declines as we age, we only need 20-40 minutes of it, twice, and no more than three times, a week. He calls this the sweet spot for longevity.

The takeaway from all of this is, too much exercise can backfire, being sedentary is bad and gentle or moderate exercise is good for us.

My reduced regime

This explains why my reduced regime and thirty-minute sessions are working well for me. It also explains why, over the last couple of years when I’ve been so busy, walking was often more beneficial for me than a workout.

In fact, Dr O’Keefe talks about the many benefits of spending time in nature, something I’ve often talked about on Ageless. Being surrounded by greenery can reduce blood pressure and improves our mood. It helps alleviate anxiety, supports our immune system and can even help improve sleep.

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Walking in a park, or even a tree-lined street, is a wonderful exercise in every way. And walking is one of the best exercises there is.

This new gentle way of exercising feels right for me at this moment in time. I look back on my old routine with awe. It was impressive for sure, but that was then, and this is now. The important thing is that I’m still very active, I exercise in some way whenever I can, but I’ve taken the pressure off myself and feel good for it.

Introducing HELLO!’s Second Act

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HELLO! wanted to create a space dedicated to sharing incredible stories from midlife; somewhere you can find inspiring stories of like-minded women, living their best life beyond 45.

Enter, Second Act…

For too long, we were expected to fade into the background when we hit 45, but we’re here to reframe your Second Act as a celebratory, exciting new chapter with endless possibilities ahead.

From women who embarked on new careers in their fifties, to those who travelled the world alone after their children left home, to women who finally felt confident when they reached their forties, Second Act is devoted to celebrating the incredible stories of midlife, and we’d love to have you along for the journey – because being part of a community makes everything more enjoyable.

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