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Share on Pinterest The 12-3-30 treadmill challenge is trending on TikTok, but can the viral workout really help you lose weight? M_a_y_a/Getty ImagesTikTok users claim the 12-3-30 treadmill challenge can help you lose weight.It involves using a treadmill at a 12% incline, moving at a speed of 3 mph for 30 minutes.Experts say it helps you lose fat while also building muscle.However, it could put you at risk for muscle and joint strain or overuse injuries.Beginners and those with heart conditions should also be cautious.

Continuing the numerical weight loss trend of the 90-30-50 diet, TikTok has also given us the 12-3-30 treadmill challenge.

While Today notes that it originally went viral in 2020, the 12-3-30 workout remains popular.

Opinions on the plan, however, are mixed. Fitness influencer @michaelsheedyfitness said that if you do this workout for 30 minutes a day for 30-60 days, you will increase your fat loss while still holding on to precious muscle, giving you the chiseled physique you are looking for.

On the other hand, detractors of the 12-3-30 trend, like @adrianleungfit, say its complete BS.

Theres nothing about these numbers that will magically help you burn double the calories, he said.

In fact, if these numbers are wrong for your individual body, it may have some undesirable side effects.

So, whats the truth about this weight loss challenge? What is the 12-3-30 treadmill challenge?

Michelle Porter, a certified health and wellness coach, NASM-certified personal trainer, and founder of Michelle Porter Fit, said the 12-3-30 treadmill workout involves walking at a 12% incline at a speed of 3 mph for 30 minutes.

She added that it is popular because its simple, accessible, and highly effective for improving fitness and supporting weight loss.

Porter explained that this exercise routine gives you the benefits of lower-body strength training along with cardio without the impact of running.

Walking at a steep incline targets your glutes, hamstrings, and calves, she said, helping to strengthen and tone these muscles while burning calories at an accelerated rate.

Porter further noted that the 12% incline makes it effective for weight loss, as its similar to hiking up a hill.

Incline walking boosts your heart rate significantly, providing a cardiovascular challenge without requiring faster speeds or longer distances, she said.

If you are someone who wants the calorie-burning benefits of running, but without the impact, this is a excellent alternative, according to Porter.

She also noted the simplicity of the workout due to its consistent speed, incline, and duration. Does the 12-3-30 treadmill challenge work for weight loss?

Porter said the 12-3-30 workout can help with weight loss.

Walking at a 12% incline burns significantly more calories than walking on a flat surface, making it an efficient way to create the calorie deficit needed for weight loss, she said.

According to Porter, it also works large muscle groups like the glutes and hamstrings, which increases metabolic demand and enhances fat-burning both during and after the workout.

Shahinaz Soliman, MD, a board certified family physician with Shantique Med Spa, agreed, adding that it can also help improve the strength of the heart and blood vessels, so it may particularly be good for people who arent currently active.

But to get a substantial change in the overall body weight, it is all about punctuality, productivity, and healthy intake of the food consumed throughout the day, she emphasized. Are there any risks with the 12-3-30 treadmill challenge?

According to Porter, the workout is generally low impact and safe. However, it should be noted that the steep incline can create some risks.

She said one potential concern is joint or muscle strain. Beginners or those with pre-existing knee, hip, or lower-back issues may find the incline taxing.

Porter also noted the potential for overuse injuries since it involves repetitive motion on a daily basis. The calves and Achilles tendons would be most at risk.

Additionally, if you are new to exercise or have a heart condition, you should be aware that the sustained incline may raise your heart rate too high, she said.

Soliman suggested that the slope, velocity, and time can be adjusted to your personal fitness level.

She also advised against using any single exercise for a long time and to try to introduce variety into ones exercise plan.

This workout is probably one of the easiest approaches to physical exercise, which is more important for everyone out there, she concluded, especially when they decide to start their workout regimes. Takeaway

The 12-3-30 treadmill challenge is a TikTok trend that promises to help people lose weight.

It involves using a treadmill at 12% incline, at 3 mph, for 30 minutes a day.

Fitness experts say it can help you burn more calories and build strength while still being lower-impact than running.

Doing this workout along with a healthy diet can aid in weight loss.

However, the steep incline and repetitive motion could set you up for joint or muscle strain or overuse injuries.

It could also be too hard on your heart if you are new to exercise or have a heart condition.

Beginners should start at a lower incline or work out for a shorter time.

Incorporating rest and a variety of activities into your workout schedule is also a good idea.

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Pope Francis has ‘initial, mild’ kidney problem and still in critical condition, says Vatican

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Pope Francis has 'initial, mild' kidney problem and still in critical condition, says Vatican

The Pope remains in a critical condition and is now showing an “initial, mild” kidney problem – but is “vigilant” and took part in Mass in hospital with those caring for him.

The Vatican statement said Francis hadn’t had any more “respiratory crises” since Saturday evening.

However, a problem with his kidneys has emerged, with blood tests showing “an initial, mild, renal insufficiency, which is currently under control”, according to the update.

The 88-year-old Pope is still having “high-flow oxygen therapy” into his nose, while his hemoglobin value has increased after being given blood transfusions on Saturday.

The Pope has been at Rome’s Gemelli hospital since 14 February and is being treated for double pneumonia and chronic bronchitis.

Sunday evening’s statement said he was “vigilant and well oriented”, but due to the complexity of his case the prognosis is “reserved”.

“During the morning, in the apartment set up on the 10th floor, he participated in the Holy Mass, together with those who are taking care of him during these days of hospitalization,” the update added.

On Sunday morning, the Vatican said the Pope had a “tranquil” night and confirmed he would not lead prayers for the second week running.

Instead, Francis, who has been Pope since 2013, prepared words to be read on his behalf at the recitation of the Angelus.

‘I ask you to pray for me’

The Pope’s message said: “I am confidently continuing my hospitalisation at the Gemelli Hospital, carrying on with the necessary treatment; and rest is also part of the therapy!

“I sincerely thank the doctors and health workers of this hospital for the attention they are showing me and the dedication with which they carry out their service among the sick.

“In recent days I have received many messages of affection, and I have been particularly struck by the letters and drawings from children.

“Thank you for this closeness, and for the prayers of comfort I have received from all over the world! I entrust you all to the intercession of Mary, and I ask you to pray for me.”

The message is understood to have been written in the last few days.

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‘The Pope is like family to us’

On Saturday night, the Vatican said the Pope was in a critical condition after a “prolonged respiratory crisis” that required a high flow of oxygen.

It said he’d had blood transfusions after tests revealed thrombocytopenia, which is associated with anaemia.

Millions around the world have been concerned about his increasingly frail health – and his condition has given rise to speculation over a possible resignation.

Faith is never lost but it feels optimism is fading

By Lisa Holland, Sky correspondent in Vatican City

It’s hard to imagine a Sunday in the Vatican City without the Pope. Every week – unless he’s travelling – he is a constant, appearing at the same Vatican windows to deliver his message.

Instead, his written words were distributed by Vatican officials. In his message, the Pope thanked his doctors and people around the world for their good wishes.

But it seems the upbeat message was written before the dramatic downturn in the Pope’s health, which has left him in a critical condition. The business and the events of the Church are continuing in his absence.

Faith is never lost but it feels like optimism is fading and we are living through the last days of Pope Francis.

In St Peter’s Square the sun shone – and a gentle light fell on the ancient stone of the basilica.
The beauty and pageantry of columns of deacons and visitors filing in for a special mass as part of the Catholic Church’s jubilee year sat awkwardly with the prognosis of the Pope’s ailing health.

The visitors and deacons who’d come from around the world to take part, and hoped to see the Pope, were left disappointed. Though they said they felt his presence. “It is what it is,” said one.

They know the Pope is an 88-year-old man who has spent the last few years assisted by a wheelchair and walking stick. Throughout his life he has been dogged by lung issues.

It leaves an almost philosophical mood ahead of what the coming days may bring.

Read more from Sky News:
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Doctors said on Friday that he was “not out of danger” and was expected to remain in hospital for at least another week.

They also warned that while he did not have sepsis, there was always a risk the infection could spread in his body.

Sepsis is a complication of an infection that can lead to organ failure and death.

Pope Francis has a history of respiratory illness, having lost part of one of his lungs to pleurisy as a young man. He also had an acute case of pneumonia in 2023.

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Volvo Penta set to show off its new BESS subsystem at bauma 2025

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Volvo Penta set to show off its new BESS subsystem at bauma 2025

Volvo Penta will debut its latest modular and scalable battery energy storage system (BESS) platform for the off-grid construction and mining industries at the bauma equipment show – here’s what you can expect.

Best-known for its marine engines and gensets, Volvo Penta is the power production arm of the Volvo Group, specializing in putting energy to work. Operating under the tagline, ‘Made to Move You’, Volvo Penta is headed to bauma 2025 with a plan to keep construction, port shipping, and mining operations moving productively and competitively throughout their transitions to battery and (in theory, at least) hydrogen power.

To that end, the company will show off a job site ready version of the scalable and modular BESS subsystem concept shown last year.

Volvo says its new, modular BESS subsystem will enable other OEMs and third party system integrators to seamlessly deploy electric power to meet the ever-exceeding energy needs in construction and mining.

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“Our modular and scalable battery-electric platform is designed to support the electrification ecosystem—combining high-performance drivelines with the crucial energy storage subsystems for efficient charging and operation in construction and mining,” says Hannes Norrgren, President of Volvo Penta Industrial. “We want to meaningfully collaborate with our customers on value-added customization that will enable them to stay productive, efficient, and future-ready.”

The Penta substation at bauma will be built around the company’s “Cube” battery pack, an energy-dense solution with a favorable C-rate designed to make it easy for BESS manufacturers to offer more compact job site solutions capable of charging and discharging energy with high levels of speed and efficiency, enabling both stationary and mobile BESS configurations that can change and grow to meet the evolving needs of a given asset fleet or project.

A Volvo Penta-developed DC/DC unit converts the voltage from the Cube battery packs (600 V) into lower voltage (24 V) for powering auxiliaries and portable offices.

Electrek’s Take

BESS concept packed with Penta Cube batteries; via Volvo.

Volvo Penta has always provided power. Historically that’s been from combustion, but the company is looking ahead, developing products that will bring energy to job sites, tractors, and more long after the last ICE engine shuts down.

SOURCE | IMAGES: Volvo Penta.

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Exit poll may appear decisive – but path to coalition is not clear yet

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Exit poll may appear decisive - but path to coalition is not clear yet

Initial exit polls appear to confirm what we have known for weeks: that the conservative Christian Democrats (CDU) and their Bavarian sister party the Christian Social Union (CSU) have got the most votes in the federal election, with Friedrich Merz most likely to be the next chancellor.

While this result isn’t a surprise, it doesn’t mean the path to power will be easy.

First off, the CDU-CSU don’t have a majority so they need to try to build a coalition.

The first exit polls are displayed on a screen next to Willy Brandt monument at the headquarters of the Social Democratic Party (SPD), in Berlin, Germany, February 23, 2025. REUTERS/Liesa Johannssen
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The first exit polls displayed on a screen at the SPD’s headquarters in Germany. Pic: Reuters

Their most obvious choices as partners are the third-place Social Democrats. A two-party coalition is preferred as it can avoid excess bickering but the SPD and CDU disagree on several key points including sending long-range Taurus cruise missiles to Ukraine.

Follow live: Germany’s election results

Forming a government can take months but Mr Merz is keen to speed up the process – aware of the pressing issues both at home and abroad.

One of those is the rise of the far right, with the Alternative for Germany (AfD) party celebrating historic results.

The initial results suggest that for the first time since the Second World War, a far-right party has got the second highest number of votes.

That could also cause serious issues for the next government.

As a result of Germany‘s Nazi history, mainstream parties have a long-running pact known as the “firewall” which says they will not work with the far right.

Even before the polls had closed, AfD leader Alice Weidel echoed Donald Trump and released a video statement urging people to “observe” the ballots being counted and to “protect democracy”.

23 February 2025, Berlin: Alice Weidel, federal chairman and candidate for chancellor of the AfD, waves a German flag at the AFD election party at the AfD federal office. On the left is Tino Chrupalla, national chairman of the AfD, and on the right is Bj'rn H'cke (AfD). The early election to the 21st German Bundestag took place on Sunday. Photo by: S'ren Stache/picture-alliance/dpa/AP Images
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The AfD’s Alice Weidel celebrating after the exit poll result. Pic: AP

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How will Germany election impact Europe?

Many of the AfD’s supporters have said not allowing the second most popular party into government is undemocratic, threatening to take to the streets.

The US vice president JD Vance also sparked outrage when he spoke out against the firewall at the recent Munich Security Conference and suggested the new Trump administration would be ready to work with the AfD.

Conversely, in the run-up to the election, hundreds of thousands of Germans have protested to demand that the firewall remains.

German Chancellor Olaf Scholz of the Social Democratic Party (SPD) gestures after the exit poll results are announced for the 2025 general election, in Berlin, Germany, February 23, 2025. REUTERS/Lisi Niesner
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German chancellor Olaf Scholz of the Social Democratic Party after the exit poll results. Pic: Reuters

In January, Mr Merz caused controversy when a draft motion got through parliament with AfD support, he’s since vowed he will not go into government with them.

If he sticks to that pledge then he is likely to see right-wing demonstrations as well becoming a target of prominent AfD backers including Elon Musk.

Read more on Germany election:
Who is Friedrich Merz – Germany’s likely next leader?
German elections are usually dull affairs – this time is different

The AfD’s result also cannot be ignored. While some of the vote may be a protest, the party has expanded its traditional base in the east to pick up support in the west.

Dissatisfaction over migration, the economy, rocketing prices and the war in Ukraine have all helped to grow its ranks as people feel ignored by mainstream parties.

Mr Merz has already tried to win back some of its voters by proposing tough migration reforms including permanent checks on the borders and potentially turning away some asylum seekers when they try to enter.

If he fails to deliver on these promises then the AfD will continue to make gains.

Other urgent to dos for the next government include sorting out Germany’s economy following two years of recession and restoring its position at the centre of the EU.

Ministers must also face up to the fact their traditional allies are no longer guaranteed.

The Trump administration appears to be ripping up the rule book when it comes to being a protector of Europe and its ongoing support for Ukraine.

If America steps back, as Europe’s largest power and Ukraine’s largest European backer, Germany will have to step up.

Again, that’s going to be a big challenge as its military needs to be transformed.

The final results are not even confirmed yet but whatever form it takes, the next government knows it has four years to fix Germany, if it fails then populists are highly likely to ride to power in 2029.

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