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Boost heart and lung health with just 2 quick exercise bursts a day, experts say

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Boost heart and lung health with just 2 quick exercise bursts a day, experts say
Finding time to work out can feel impossible for many people, especially with packed schedules and long days. But new research suggests that you may not need hours at the gym to improve your health. Scientists say even two short bursts of exercise a day, known as “exercise snacks”, could meaningfully boost heart and lung fitness.

Why are short bursts of exercise so effective?

Getting enough exercise is a challenge for many adults, particularly as life gets busier. Yet staying active remains one of the best ways to protect your heart, lungs, and overall well-being. According to a new review published in the British Journal of Sports Medicine, short bouts of physical activity, called “exercise snacks”, may hold the key to improving fitness without the time burden of traditional workouts, as per a report by MNT.

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Regular exercise has long been linked to lower risks of heart disease, diabetes, obesity, and even depression. However, the Centers for Disease Control and Prevention (CDC) recommends 150 minutes of moderate activity or 75 minutes of intense activity weekly, a target that nearly one-third of adults fail to meet. The new research suggests that smaller, more frequent bouts of exercise can still deliver measurable benefits for those struggling to fit workouts into their routines, as per a report by MNT.

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Miguel Ángel Rodríguez, a doctoral researcher at the University of Oviedo in Spain, explained why this approach works, “When people are asked why they don’t exercise, the most common answers are lack of time and lack of motivation. Exercise snacks directly address both: They’re short, flexible, and easy to fit into daily routines.”

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What did the study find?

The review analyzed data from 11 studies conducted across Canada, Australia, China, and the United Kingdom. A total of 414 participants, aged between 18 and 75, took part, most of whom were sedentary or physically inactive before the research began.

Participants performed short bursts of exercise between two and ten times a day, for up to five minutes each. Activities ranged from stair climbing and leg-focused strength movements to tai chi, a low-impact martial art known to enhance balance and flexibility.

The studies lasted between four and twelve weeks, with participants exercising on three to seven days a week. Impressively, 83% of participants stuck with the program, far higher than the 63% adherence rate typically seen with high-intensity interval training (HIIT), as per a report by MNT.

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Cheng-Han Chen, MD, a board-certified interventional cardiologist and medical director at MemorialCare Saddleback Medical Center, explained the findings:

“This review analyzed multiple previous studies and found that brief (less than 5 minutes) periods of moderate-to-intense exercise at least twice a day was associated with improved cardiorespiratory fitness. These findings provide a potential avenue for sedentary people to obtain a health benefit with only short amounts of physical activity,” as per a report by MNT.

What types of exercise work best?

The studies explored a range of movements to suit different fitness levels. Younger participants performed more intense activities such as stair sprints, lunges, and push-ups. Older adults or those with lower fitness levels benefitted from lighter routines like chair stands, resistance exercises, or short sessions of tai chi, as per a report by MNT.

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Rodríguez emphasized that consistency and personalization matter most, “It is important to recognize that exercise should ideally be individualized to maximize its benefits. The response to training can differ substantially between adults and older adults, due to variations in physiological capacity, recovery rate, and baseline fitness.”

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He added that, “balancing intensity, safety, and consistency is essential when implementing exercise snacks in everyday life.”

Can short workouts really improve heart and lung fitness?

Yes, the research showed statistically significant improvements in cardiorespiratory fitness, even though participants didn’t meet the full weekly exercise recommendations set by the CDC or World Health Organization (WHO), as per a report by MNT.

Younger adults showed the biggest boosts in heart and lung function, while older adults saw improvements in muscular endurance. Rodríguez noted:

“What’s remarkable is that these gains were achieved with exercise volumes far below current WHO recommendations. This suggests that small, consistent bouts of movement can meaningfully improve fitness, even in people who find it hard to dedicate long periods to exercise.”

The study also observed positive changes in muscle strength, balance, and endurance, though the researchers cautioned that more comparisons with traditional, longer workouts are needed to confirm equivalence.

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Is any movement better than none?

Both Rodríguez and Chen agree that consistency, not duration, is the true key to long-term health, as per a report by MNT.

Rodríguez advised, “The main message is that exercise does not need to be long, structured, or complicated to be effective. Short, repeated bouts of activity (i.e., ‘exercise snacks’) can significantly improve fitness with very little time commitment.”

He continued, “any opportunity throughout the day to move, even briefly, can make a meaningful contribution. Incorporating short, vigorous snacks of activity whenever possible remains a highly valuable and accessible strategy for improving overall health and cardiorespiratory fitness,” as per a report by MNT.

Chen added that this flexible style of movement could be ideal for those who struggle to carve out time, “This form of exercise might be an efficient way for busy and/or sedentary individuals to get at least some cardiopulmonary benefit with only brief periods of higher-intensity physical activity.”

How can you add exercise snacks to your day?

For people who are short on time, Rodríguez suggested weaving short activities into daily routines, “For healthy adults, practical examples include fast stair climbing, bodyweight squats, lunges, push-ups, or even burpees, provided that their physical condition allows these higher-intensity movements.”

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For older adults, or those new to exercise, gentler options like chair stands, light resistance training, and tai chi can be highly effective. The goal isn’t to exhaust yourself, it’s to move more frequently and consistently throughout the day, as per a report by MNT.

The research makes one thing clear: fitness doesn’t always require long, structured workouts. Even two or three bursts of movement a day, lasting less than five minutes each, can improve heart and lung health, increase strength, and boost endurance.

In Rodríguez’s words, the message is simple, “Any opportunity throughout the day to move, even briefly, can make a meaningful contribution.”

So, whether it’s climbing stairs, doing squats in between calls, or taking brisk walks during lunch, those small moments of movement could make a big difference for your long-term health.

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Note:

This article is for informational purposes only and not a substitute for professional medical advice. Always consult your doctor regarding any medical concerns.

FAQs


What are exercise snacks?

They are short, high-intensity bursts of physical activity lasting about five minutes, done multiple times a day.

How do exercise snacks improve health?
Even brief activity boosts heart and lung function, improves endurance, and helps maintain overall fitness, especially in people with busy schedules.

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Jogging 101: Benefits for Your Body and Mind

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Jogging 101: Benefits for Your Body and Mind

Walking and running share a number of benefits — but what about that sweet middle ground between the two?

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“Jogging is about creating a steady pace,” says sports and exercise medicine specialist Leonardo Oliveira, MD. “Instead of focusing on speed, you’re focused more on endurance with good, quality steps.”

Before your next jaunt, Dr. Oliveira shares the many benefits of jogging and how it can help improve your overall health and wellness.

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9 benefits of jogging

Unlike running, where you’re focused on targeting different heart rate zones, jogging involves keeping a more stable and persistent pace. If you’re jogging at a moderate intensity, for example, your target heart rate will usually fall into zone 2, at 60% to 70% of your max heart rate.

“When you’re jogging, you should be able to carry on a conversation as you breathe through your nose,” says Dr. Oliveira. “If you’re doing just 15 minutes of jogging three times a week, you’re already going to notice the benefits.”

Here’s how you can benefit from jogging.

1. Reduces stress

Jogging, like other exercises, can help decrease your stress levels. As an aerobic exercise, it helps release endorphins, which can boost your mood and create feelings of euphoria or satisfaction. Not only does it provide an outlet for pent-up energy, but jogging outside also allows you to spend more time in nature, which provides even more mental health benefits.

“Research shows exercise can be as effective as medication when treating depression because of its wide-ranging benefits,” says Dr. Oliveira.

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2. Burns calories

Jogging is a full-body exercise that offers a higher calorie burn than some other aerobic exercises. According to the widely used Compendium of Physical Activities, jogging burns about 7.5 calories per kilogram of body weight each hour. That means you can burn about:

  • 8 times as many calories as sitting quietly
  • 4 times as many calories as walking
  • 2.6 times as many calories as stationary cycling

“Jogging will burn more calories in a shorter period of time than cycling, especially if you’re not used to exercising,” reports Dr. Oliveira.

3. Improves insulin resistance and boosts metabolism

Insulin resistance is one of the biggest barriers to having a healthy metabolism. Insulin helps your body break down glucose for energy. But if your body can’t do that, your metabolism slows down, leading to:

  • Lower energy levels
  • Weight gain
  • An inability to burn fat

“Exercising at higher intensities helps increase metabolism and insulin resistance,” says Dr. Oliveira. “But researchers have also found that even lower-intensity exercises, like jogging, for longer periods of time can have the same effect.”

4. Strengthens your heart

Jogging also has positive impacts on your heart and its ability to pump blood to the rest of your body. That’s because it contributes to hypertrophy, or the strengthening of your heart’s muscle tissues.

“As you develop endurance, the amount of blood in one pump increases,” explains Dr. Oliveira. “When your heart gets stronger, it contracts more efficiently, which decreases your resting heart rate.”

5. Improves lung expansion and gas exchange

The more you work on building endurance and stamina, the more likely it is that you’ll improve your overall ability to breathe — both at rest and while jogging.

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“Consistent aerobic exercise helps your lungs get stronger and more efficient,” says Dr. Oliveira. “Over time, you won’t need to breathe as often because each breath brings in more oxygen than before.”

6. Activates muscles

Jogging activates major muscle groups, including your:

  • Quads
  • Hamstrings
  • Glutes
  • Core
  • Back

“Strength training is a good complement to jogging because it can help strengthen all the areas of your body,” says Dr. Oliveira. “This can help you handle longer distances.”

7. Reduces stiffness

“Jogging is one of those activities where once you get going, you start to feel better,” notes Dr. Oliveira. “It’s an exercise that helps warm up your muscles and lubricate your joints, which can help with the overall sense of stiffness that comes with age.”

That said, jogging is still a high-impact exercise because it forces you to bear down weight as your feet hit the pavement. Consider working with a physical therapist or athletic trainer to reduce the risk of further injury if you:

  • Have arthritis
  • Have an active injury
  • Had previous sprains or fractures in your lower body

8. Improves endurance

“The more you jog, the more you’ll increase your functional aerobic capacity,” says Dr. Oliveira. “Someone who jogs regularly will have better physical fitness that will help them last longer on a bike or a walk than someone who’s just getting started.”

Your ability to breathe and move also extends to other daily activities that demand cardiovascular strength and endurance, like climbing stairs.

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9. Provides better quality of life and other mental health benefits

Research shows that any amount of jogging — even just once a week — can improve your quality of life and lower your risk of dying from cancer and cardiovascular-related issues.

“Jogging is a great form of exercise, but it’s not the only one,” notes Dr. Oliveira. “The most important thing is to work on being healthy and strong. And for a lot of people, if you’re looking to advance your physical fitness, jogging is a good place to start.”

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Michelle Yeoh, 63, uses ‘exercise snacking’ to stay fit – here’s why mini workouts have big benefits

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Michelle Yeoh, 63, uses ‘exercise snacking’ to stay fit – here’s why mini workouts have big benefits

As an increasing number of scientific studies are published citing the benefits of ‘exercise snacking’ – short bouts of physical activity sprinkled throughout the day – one celeb has sworn by the practise for several years already. The woman in question? Acting great Michelle Yeoh. Below, we look at the power of mini workouts and why the Oscar-winner’s go-to move is so effective.

Stretching

Michelle revealed to Vogue that she incorporates fitness into her morning routine in a way that’s incredibly time-efficient. ‘Remember, you can do your kicks, you can do your stretches, while you are also waking up,’ she said. Indeed, research has shown that regular stretching can improve flexibility, reduce muscle stiffness and improve blood circulation – all crucial elements of healthy ageing.

And you don’t have to stretch for very long, either. One study found that while static stretching improves flexibility in adults, there was no additional benefit observed beyond four minutes per session or 10 minutes per week. So, it seems that a short stretching sesh (you don’t even have to get out of bed to do it) like Michelle’s is a very worthwhile habit to adopt.

Squats

In her Vogue interview, Michelle also shared that she performs squats most days while doing her skincare routine. Virtually every expert and trainer we speak to here at Women’s Health lists squats as one of the most important moves for women to do as they age. A compound exercise (when multiple muscle groups are used), squats also mirror the vital movement pattern of sitting down and getting back up again.

Numerous studies have highlighted the benefits of this simple exercise for posture, strength and power, and one paper even found that intermittent squat exercises performed during prolonged periods of sitting may boost brain power. Whether you’re squatting mid-moisturise like Michelle or while you’re waiting for the kettle to boil, the science suggests sprinkling squats into your day can be really quite powerful.

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The power of habit stacking

As Michelle’s routine shows, adopting a sustainable exercise routine often relies on habit stacking – adding a movement to something you already do every day, like doing your skincare or brushing your teeth.

BRB, we’re just off to do our daily squats.


After years living with endometriosis and undergoing seven rounds of IVF, Radio 4 presenter Emma Barnett turned to training with PT Frankie Holah to rebuild strength and a more positive relationship with her body. Download the Women’s Health UK app to access Frankie’s full training plan.

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Headshot of Hannah Bradfield

Hannah Bradfield is a Senior Health and Fitness Writer for Women’s Health UK. An NCTJ-accredited journalist, Hannah graduated from Loughborough University with a BA in English and Sport Science and an MA in Media and Cultural Analysis.  She has been covering sports, health and fitness for the last five years and has created content for outlets including BBC Sport, BBC Sounds, Runner’s World and Stylist. She especially enjoys interviewing those working within the community to improve access to sport, exercise and wellness. Hannah is a 2024 John Schofield Trust Fellow and was also named a 2022 Rising Star in Journalism by The Printing Charity.  A keen runner, Hannah was firmly a sprinter growing up (also dabbling in long jump) but has since transitioned to longer-distance running. While 10K is her favoured race distance, she loves running or volunteering at parkrun every Saturday, followed, of course, by pastries. She’s always looking for fun new runs and races to do and brunch spots to try.

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I Have a Master’s in Exercise Science. These Are the Only 6 Strength Moves You Need To Build Muscle

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I Have a Master’s in Exercise Science. These Are the Only 6 Strength Moves You Need To Build Muscle

Strength training doesn’t have to be complicated. Fitness content on social media may leave you thinking that you should only work out at specific times, use certain weights and incorporate an ever-rotating assortment of moves — but to reap the full benefits of building muscle, you can actually keep things surprisingly simple.

The Physical Activity Guidelines for Americans recommends at least two days of resistance training, aka strength training, for adults each week as part of their workout routines. And those two days need only include six moves, Adrian Chavez, Ph.D., nutrition and health coach, tells TODAY.com.

It’s often the most advanced fitness routines that generate the most buzz online. And while having lots of different strength moves in your arsenal can stave off boredom at the gym, it’s not usually necessary, Chavez explains. Sticking to the basics and staying consistent will give you the most bang for your buck, he adds.

The Most Efficient Strength-Training Moves

The six moves Chavez says are most efficient for improving health and body composition are:

“Those movements cover all of the (major) muscle groups of the body,” Chavez says. “I wouldn’t necessarily say these are the only six movements that you need, but those are the ones that are going to work the largest amount of muscle in each movement.”

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Building muscle through strength training can boost longevity, a mood, bone density and more.

It’s also a key factor to improving metabolic health, Chavez points out. Muscle burns calories, even while you’re at rest. So, the more muscle you have, the more calories you’ll burn.

If you’re after efficient results, focusing on these six movements that target the body’s largest muscle groups will get you there since these muscles require the most energy to function.

Which Muscles Does Each Move Target?

The overhead press primarily targets the shoulders, says Chavez. It also works the triceps, the trapezius muscles in your upper back and the core.

Perform a chest press when you’re looking to strengthen your pectoralis muscles, the two largest in the chest. These muscles are responsible for lifting, rotating and pushing.

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By including a back row in your strength training routine, you’ll be working your upper back and biceps, says Chavez.

The overhead pull-down or pull-up will strengthen your latissimus dorsi muscles (lats), which extend from the lower back to the armpit. Chavez says you’ll be engaging your biceps, too.

Squats work the quadricep muscles (quads) in the thighs, hamstrings and glutes, says Chavez. They’ll also engage your core, since squats require stability.

Include deadlifts in your routine to challenge your quad muscles in the thigh, hamstrings, glutes and lower back, says Chavez. You can choose between the regular deadlift and the Romanian deadlift, or incorporate both into your workout.

Benefits of a Consistent Strength Training Routine

Studies show that consistency when strength training, rather than the complexity of your workout plan, is what makes the biggest difference for health. Any kind of resistance training compared to none at all improve sstrength, muscle function and endurance regardless of intensity, equipment type and variation, research shows.

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These six moves are not the only effective workouts for improving strength and altering body composition, but if you were to stick only to these six, you’d be in great shape, he explains.

Regular strength training will not only improve your physique but also your quality of life. “When you do a deadlift, that’s like picking up your kid,” Chavez says, comparing pull-ups to playing with them on the monkey bars.

“Carrying groceries, moving furniture, all of those things become a lot easier when you build some strength. And … these six movements cover all of the major muscle groups, so that will translate into really changing the way that you experience life,” he adds.

How to Add Variation

Once you’ve committed to a training plan you’ll use again and again, you may also want to mix things up, Chavez says.

To avoid boredom or to add an additional challenge, most of the six moves have variations.

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For example, narrow-stance squats isolate the quads. Or you can change the grip during bicep curls to also target the forearms. “Learning slight variations to these primary movements is how you really build out a good routine,” he says.

An ideal workout program includes strength training at least two times a week and additional sessions with a type of cardio you enjoy. Chavez plays basketball, runs and rides his bike in between strength training sessions. He also suggests walking, swimming or rowing.

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