Whether it is sprinting down a track, swimming through waves, or pedaling at breakneck speeds, different activities require different expenditures of energy. Some sports call for short, explosive bursts of power, while others test endurance over hours. The number of calories burned depends on the sport, intensity, and the athlete's unique physiology. Most Calorie-Intensive Olympic Sports : Provides a peek into the physical demands faced by athletes as well as inspiration for anyone looking to gain insight into energy use in peak performance.

The Olympics witness over 200 countries competing in more than 300 events, one can't help but wonder: which Olympic sport demands the most from the body in terms of calories burned? While every event requires exceptional physical and mental fortitude, some sports stand out as calorie-torching powerhouses. Let's break it down.

Understanding calorie burn begins with the metric of kcal/kg/hour — calories burned per kilogram of body weight per hour. To put this into perspective, an average adult weighing 185 pounds (84 kg) burns 1 kcal/kg/hour while at rest. Activities that exceed 6 kcal/kg/hour are classified as "vigorous" by the Physical Activity Guidelines for Americans. However, the caloric expenditure of Olympic sports depends on two key factors:

1. The energy surge or intensity needed in a particular moment.

2. The absolute amount of energy used throughout the period of an event.

Does Running Burn Calories?

Running, especially sprinting and marathons, takes the cake in burning calories. Sprinting is all about short bursts of high intensity, and therefore requires explosive energy. For example, a study by a physiology expert, Pietro di Prampero, reveals that in the first 0.85 seconds of the world record by Usain Bolt in the 100-meter sprint, he burnt 91.2 kcal/kg/hour.

But over all, marathons win sprints because marathons consume more energy in totality. The energy consumption per kilometer by long-distance running is approximately 1 kcal/kg. Thus, for a marathon, which runs 42 kilometers, the energy consumption will be about 42 kcal/kg.

Let's consider Eliud Kipchoge, who won the Tokyo 2020 marathon gold. At 115 pounds (52 kg), he must have burned about 2,339 calories for his 2-hour, 8-minute run, translating to 21 kcal/kg/hour.

Also Read: How Many Calories Does Walking 12,000 Steps Burn? Tips For Reaching Your Goal

Is Swimming An Silent Calorie Crusher?

Swimming is compared to running in terms of expenditure as caloric demands can vary with stroke, environment, and skill of the athlete. One study, for example was published in 2006 in the International Journal of Sports Medicine and calculated that at a swim speed of 1.6 m/s breaststroke burns 30.4 kcal/kg/hour.

Environmental factors, such as waves and cooler water temperatures, also make open-water swimming a demanding endeavor; still, strategies, such as drafting-in swimming, allows one to swim with less water resistance behind another swimmer. One reported that Michael Phelps burned more than 5,000 calories each day in the height of training, and explains his fabled 10,000-calorie diet.

• Cycling: At speed greater than 20 mph or 32 km/h, cycling is calorically costly, using 16.8 kcal/kg/hour. Competitive cycling has sustained intensity that makes it one of the most calorically expensive sports.
• Rowing: The racing speeds in rowing clock in at 15.5 kcal/kg/hour, which shows that rowing requires full-body muscular demand and cardiovascular endurance.
• Martial arts burn 10.5 kcal/kg/hour, while competitive trampolining lags slightly at 10.3 kcal/kg/hour, due to the explosive jumps and flips involved.

How Short Bursts of Energy Help Burn More Calories?

Sports that require short, intense bursts of energy — sprinting, soccer, or pole vaulting, for example — stimulate an increased post-exercise calorie burn. Known as excess post-exercise oxygen consumption (EPOC), this phenomenon means athletes burn calories at a higher rate even after the activity ends.

A study indicates that doing five 30 seconds of high intensity exercise burns the extra 200 calories a day. This fits the reason for sprinters appearing with more muscles yet lower percentages of fats compared to those who run marathon.

Sprint vs. Distance: Endurance vs. Explosiveness

Marathons and triathlons are among the longest periods of calorie burn because of extended exertion. US runner Galen Rupp, who completed a marathon in 2:06, would burn approximately 20.6 calories per minute for a total of 2,596 calories. Olympic marathon swimmers swim equivalent distances and durations, so it is likely they burn similar amounts of calories since water resistance and cooler temperatures should equate the two.

In contrast, sports like sprints and pole vault focus on explosiveness, making them metabolically intense in short bursts but less demanding in total energy.

For Olympic athletes, caloric expenditure is important both for performance and recovery. Not consuming enough calories risks losing muscles, hormonal imbalances, and weaker bones. Excessive calorie intake, on the other hand, leads to laziness. High-precision nutrition is therefore the key to attaining the most optimal energy levels and peak performance.

So, Which Olympic Sport Consumes the Highest Number of Calories?

Whereas running has taken the day regarding momentary and total calorie burn, swimming could possibly take the first spot because it engages all of the body, which demands tougher training programs. Events like marathons and triathlons require consistency in endurance while sprinting, rowing, and martial arts offer shorter intervals for high intensity calorie burn.

In the end, each Olympic sport is a demonstration of what the human body can do, taken to an extreme that is both amazing and calorie-burning.

Physical Activity Guidelines for Americans. Physical Activity Guidelines for Americans. 2018

2024 Adult Compendium of Physical Activities. Journal of Sport and Health Science. 2024

Evaluation of the Energy Expenditure in Competitive Swimming Strokes. Int J Sports Med. 2006

The energy cost of sprint running and the role of metabolic power in setting top performances. Eur J Appl Physiol. 2015

While we laud our core strength, leg muscles, as well as our back, for keeping us upright and stable, the role our ankles play is often overlooked. Not only do they keep us stable, but they also reduce the risk of injuries, strong ankles mean better athletic abilities, shock absorption and overall balance.

If you are already worried about weak ankles and feeling unstable in your foundation, picking up a sport or exercises like strength training may not be a good idea. These things can lead your ankles to feel worse. So, to better your ankle health, you need a low impact exercise that is easy on movements but can help you get stronger. Here is where yoga comes into play. Yoga offers low-impact exercises that focus more on flow and movement. There are no movements that require you to jerk your joints or put too much pressure on them.

How Yoga Benefits Your Ankles

Yoga focuses on feet health, helps build the muscles strength present in them. These poses are done in a way that stretches the tight muscles, preventing any imbalances. When you are doing deep stretches, they help improve the blood flow to your feet and ankle. This relieves pain, reduces swelling as well as promoting faster healing. Here are some poses you should try.

Mountain Pose (Tadasana)

Begin by standing tall with your feet positioned hip-width apart. Distribute your body weight evenly across both feet and actively engage the muscles in your legs. Feel a connection to the ground beneath you, focusing on grounding firmly through your feet. Hold this pose for several breaths, noticing the strength and stability in your feet and ankles.

Toe Stretch

Sit comfortably on your heels, then gently tuck your toes underneath you. Slowly shift your weight backward, feeling a mild stretch along the soles of your feet. Maintain this position for a few breaths before releasing. Repeat this stretch several times, gradually increasing the duration as your flexibility improves.

Ankle Circles

Sit with your legs extended straight out in front of you. Place your hands comfortably beside your hips for support. Lift one foot slightly off the ground. Next, rotate your ankle in a circular motion. Perform ten circles in one direction, and then switch to the opposite direction. Repeat these movements with the other foot. This exercise is excellent for enhancing ankle mobility and flexibility.

Warrior Pose (Virabhadrasana)

Stand with your feet positioned wide apart. Turn your right foot outward and bend your right knee, ensuring it stays aligned directly over your ankle. Extend your arms out to the sides, parallel to the floor, like a warrior's stance. Find your balance and stability in your front foot as you hold this pose. Remember to repeat the same steps on the opposite side.

Garland Pose (Malasana)

Squat down with your feet placed hip-width apart and your heels firmly on the ground. Bring your palms together in front of your chest at your heart's centre. Gently press your elbows against your inner thighs, which helps to open your hips. Feel the stretch in your ankles and feet as you hold this pose for several breaths.

Tree Pose (Vrksasana)

Begin by standing tall and then carefully shift your body weight onto your left foot. Bend your right knee and place the sole of your right foot against your inner left thigh or calf. Find your point of balance and bring your hands together at your heart's center. Hold this pose for several breaths, then repeat the same steps on the other side. Tree pose is excellent for strengthening the muscles in your feet and ankles while significantly improving your balance.

You're walking through your day, effortlessly monitoring your health, steps, and heart rate without the bulk of a fitness watch on your wrist. Rather, a sleek smart ring lies unnoticed on your finger, working its magic quietly in the background. Interested? You're not the only one. With all the hype over these little tech wonders, people are wondering if they're actually as accurate as their clunky cousins—the fitness watch.

Smart rings are a trendy, minimalist version of the old-style fitness watch and have been widely adopted by health tech buffs, athletes, and even medical practitioners. They come in sleek form, being undistinguishable as jewelry, loaded with strong sensors that can measure sleep, heart rate, and a multitude of wellness indicators. But at what price: reduced accuracy because they are so small? And most importantly, can they really compete with—or even outdo—smartwatches in health monitoring?

The answer is not so simple. Smart rings might be less capable in some respects, but recent studies and developments indicate that they have promising strengths, particularly in the accuracy of some health measurements. Here's an in-depth, exclusive comparison of how smart rings compare to fitness watches.

Smart Rings vs. Smartwatches

At the core of both smart rings and smartwatches lies the same foundational technology—photoplethysmography (PPG). This method uses light-based sensors to measure changes in blood volume, providing real-time data on your heart rate. However, where the device is worn makes a significant difference.

According to a 2022 review in Frontiers in Physiology, the finger is a more vascular-rich area compared to the wrist. That is, smart rings might provide more accurate readings, particularly for heart rate tracking, due to the proximity of the finger to rich blood vessels. Also, a study published in 2023 in Mayo Clinic Proceedings: Digital Health pointed out that smart rings might provide more accurate readings of heart rates in individuals with darker skin. The palm contains less melanin than the wrist, minimizing the light distortion that PPG sensors tend to have trouble with.

However, they have their prerequisites. Motion artefacts—motion-induced interference—can warp smart ring readings, particularly during exercise. According to a 2021 study in the Journal of Electrical Bioimpedance, even minimal movement of the finger during light exercise can invalidate ring-based sensor accuracy. And not like smartwatches, smart rings generally have no onboard GPS and sophisticated accelerometers, thus restricting their use in monitoring challenging workouts or runs.

Even with some immediate limitations, smart rings are rapidly advancing. New prototypes indicate that these wearables may soon far surpass heart rate and sleep tracking. One exciting advance is the result of a January 2024 paper published in IEEE Transactions on Mobile Computing, which introduced a smart ring to track hand hygiene in real time—a revolution in healthcare environments. The ring's electrochemical fluid sensor proved to be 97.8% accurate, more than a 10% improvement over available electronic hygiene monitors.

Another 2021 Computer Modeling in Engineering & Sciences study presented a ring that would be able to sense early hand tremors, an early sign of Parkinson's disease. As research advances, experts envision future rings will even track blood glucose, hydration, and blood pressure—marking the beginning of a new era of passive, ongoing health monitoring.

Sleep Tracking and Wellbeing

When it comes to sleep monitoring, smart rings really shine. Their light, non-intrusive nature makes them perfect for wearing overnight. Unlike smartwatches—which are often found to be cumbersome in bed—smart rings can easily track your sleep without disturbing you.

Brands take it a step further, providing detailed information on energy levels, sleep phases, recovery, and even the best time to consume caffeine. Although a 2024 meta-analysis in Applied Sciences noted that smart rings tend to underestimate REM sleep, they still provide a holistic picture of sleep patterns by integrating data points such as heart rate variability, respiratory rate, and skin temperature.

Nevertheless, experts warn that such rings should be employed to identify trends, not to diagnose sleep disorders. "Smart rings can help identify trends, but they can never replace a sleep study that monitors brain activity," said wearable tech researcher Semitha.

Comfort, Design, and User Preference

Comfort and style are huge pluses for smart rings. They are less obtrusive and better-looking than clunky wrist-mounted devices, making them easier to incorporate into daily wear. But all is not great in the design world. Even with their streamlined marketing, many rings look clunky on smaller hands, and matte finishes tend to wear off after a while with regular use.

Smartwatches, in contrast, have adjustable sizes and removable straps, which may be attractive to those looking for flexibility. Premium smartwatches are more likely to be stronger, since they are manufactured from superior materials and designed to endure intense use.

Which One Is Best for You?

Ultimately, deciding between a smart ring and a smartwatch comes down to your individual health objectives, way of life, and personal comfort level.

If you're a fitness buff requiring precise workout tracking, GPS, and exercise recognition, a smartwatch is still the better choice.

If you're more concerned with sleep quality, daily readiness, recovery, and overall wellness—and don't mind something less invasive—a smart ring could be a game-changer.

For those who value medical-grade accuracy, both devices still lag behind clinical equipment, but smart rings potentially have more future potential because they are closer to high-fidelity data points.

Significantly, neither device is 100% accurate, but both can give you useful insights that enable you to make healthier lifestyle choices.

Smart rings are more than a fad. They are a new convergence of design, health, and technology that will have significant potential to become powerful weapons in personalized healthcare. As technology continues to improve in sensors, the distinction between wearables and medical devices might get blurred, and users could become empowered to take proactive actions towards their healthcare.

In the meantime, these rings can be thought of as hot trend friends to your health journey—not as alternatives to professional health care, but as virtual cues toward improved behaviors.

As the health tech landscape continues to evolve, the finger may just become the most important real estate in wearable innovation. And with every ring that tracks your sleep or your heart rate, we're one step closer to a future where wellness is literally at your fingertips.

Spending a dedicated time exercising, whether it is an hour or half, could be difficult for some people. If you live alone, or are a homemaker, most of the time goes by taking care of household chores, commuting to and from work, grocery runs and general day to day errands. This leads many people to worry that that they may not be able to lead a healthy lifestyle, but a new study shows that even small movements can prove to be a great addition to your daily life. The study was published in the European Journal of Applied Physiology, and revealed small movements being a great aid to bigger health issues.

Researchers found that people who weren't in the habit of working out saw improvements in their fitness after doing a specific type of exercise for about a month. These improvements included stronger muscles, more stamina to keep going, and better flexibility. This means you don't need to spend hours at the gym to start feeling healthier; even short bursts of activity can make a real difference.

Can Small Movements Make A Big Difference?

The type of exercise the study focused on is called ‘eccentric exercise’- movement emphasizes the part of an exercise where your muscles are lengthening. Think about slowly lowering any weighted object after you lift it and gently going down into a squat. Research has shown that this type of exercise is easier on your body compared to other types of workouts, and it's very effective at helping your muscles grow stronger and bigger. It's a smart way to build muscle without putting too much strain on your body, making it a good option for people who are just starting to exercise.

Even a small amount of this type of movement done regularly can provide noticeable benefits for your fitness. This is encouraging news for people who might feel like they don't have much time or energy to dedicate to exercise. It shows that even short, simple routines can have a real impact on your strength, endurance, and flexibility, making it easier to do everyday activities.

The participants, mostly women, went through a short period to get used to the study before starting a four-week routine of eccentric exercises. Every day, they performed ten repetitions of four easy exercises- chair squats (standing up and sitting down using a chair), chair reclines (leaning back slightly while seated), wall push-ups, and heel drops (raising up onto their toes and slowly lowering their heels).

After the four weeks of daily eccentric exercises, the researchers found some interesting results. While there weren't big changes in things like body composition, resting heart rate, or blood pressure, the participants did show significant improvements in their ability to do sit-ups and push-ups. They also performed better on the three-minute step test, which measures cardiovascular endurance. Additionally, their flexibility improved, and they reported feeling better mentally. This suggests that even a small amount of daily exercise can lead to noticeable and lasting fitness benefits for people who are not regularly active.

Exercises You Can Perform At Home

Chair squats: standing up and sitting down using a chair

Chair reclines: leaning back slightly while seated

Wall push-ups: placing your palms on the wall and pushing against it

Heel drops: raising up onto their toes and slowly lowering their heels

Tips To Help You Get Started With Eccentric Training

If you're interested in trying eccentric training, remember that you don't have to stick to the exact exercises used in the study. Almost any exercise can include an eccentric component. If you're not very active right now, you'll likely still see progress even if you start with low intensity and very short exercise sessions. Experts suggest starting with just five minutes a day and aiming for around ten repetitions of each exercise. This can be a good starting point to see what's possible, and from there, you can gradually increase the intensity or how long you exercise to keep improving your fitness.