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5-minute workout lowers blood pressure as much as exercise, drugs

The ultra-time-efficient maneuver known as High-Resistance Inspiratory Muscle Strength Training (IMST) could play a key role in helping aging adults fend off cardiovascular disease.

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Photo by Meghan Holmes from Unsplash.com

Working out just five minutes daily via a practice described as “strength training for your breathing muscles” lowers blood pressure and improves some measures of vascular health as well as, or even more than, aerobic exercise or medication, new CU Boulder research shows.

The study, published in the Journal of the American Heart Association, provides the strongest evidence yet that the ultra-time-efficient maneuver known as High-Resistance Inspiratory Muscle Strength Training (IMST) could play a key role in helping aging adults fend off cardiovascular disease.

In the United States alone, 65% of adults over age 50 have above-normal blood pressure – putting them at greater risk of heart attack or stroke. Yet fewer than 40% meet recommended aerobic exercise guidelines.

“There are a lot of lifestyle strategies that we know can help people maintain cardiovascular health as they age. But the reality is, they take a lot of time and effort and can be expensive and hard for some people to access,” said lead author Daniel Craighead, an assistant research professor in the Department of Integrative Physiology. “IMST can be done in five minutes in your own home while you watch TV.”

Developed in the 1980s as a way to help critically ill respiratory disease patients strengthen their diaphragm and other inspiratory (breathing) muscles, IMST involves inhaling vigorously through a hand-held device which provides resistance. Imagine sucking hard through a tube that sucks back.

Initially, when prescribing it for breathing disorders, doctors recommended a 30-minute-per-day regimen at low resistance. But in recent years, Craighead and colleagues have been testing whether a more time-efficient protocol–30 inhalations per day at high resistance, six days per week–could also reap cardiovascular, cognitive and sports performance improvements.

For the new study, they recruited 36 otherwise healthy adults ages 50 to 79 with above normal systolic blood pressure (120 millimeters of mercury or higher). Half did High-Resistance IMST for six weeks and half did a placebo protocol in which the resistance was much lower.

After six weeks, the IMST group saw their systolic blood pressure (the top number) dip nine points on average, a reduction which generally exceeds that achieved by walking 30 minutes a day five days a week. That decline is also equal to the effects of some blood pressure-lowering drug regimens.

Even six weeks after they quit doing IMST, the IMST group maintained most of that improvement.

“We found that not only is it more time-efficient than traditional exercise programs, the benefits may be longer lasting,” Craighead said.

The treatment group also saw a 45% improvement in vascular endothelial function, or the ability for arteries to expand upon stimulation, and a significant increase in levels of nitric oxide, a molecule key for dilating arteries and preventing plaque buildup. Nitric oxide levels naturally decline with age.

Markers of inflammation and oxidative stress, which can also boost heart attack risk, were significantly lower after people did IMST.

And, remarkably, those in the IMST group completed 95% of the sessions.

“We have identified a novel form of therapy that lowers blood pressure without giving people pharmacological compounds and with much higher adherence than aerobic exercise,” said senior author Doug Seals, a Distinguished Professor of Integrative Physiology. “That’s noteworthy.”

The practice may be particularly helpful for postmenopausal women.

In previous research, Seals’ lab showed that postmenopausal women who are not taking supplemental estrogen don’t reap as much benefit from aerobic exercise programs as men do when it comes to vascular endothelial function. IMST, the new study showed, improved it just as much in these women as in men.

“If aerobic exercise won’t improve this key measure of cardiovascular health for postmenopausal women, they need another lifestyle intervention that will,” said Craighead. “This could be it.”

Preliminary results suggest MST also improved some measures of brain function and physical fitness. And previous studies from other researchers have shown it can be useful for improving sports performance.

“If you’re running a marathon, your respiratory muscles get tired and begin to steal blood from your skeletal muscles,” said Craighead, who uses IMST in his own marathon training. “The idea is that if you build up endurance of those respiratory muscles, that won’t happen and your legs won’t get as fatigued.”

Seals said they’re uncertain exactly how a maneuver to strengthen breathing muscles ends up lowering blood pressure, but they suspect it prompts the cells lining blood vessels to produce more nitric oxide, enabling them to relax.

The National Institutes of Health recently awarded Seals $4 million to launch a larger follow-up study of about 100 people, comparing a 12-week IMST protocol head-to-head with an aerobic exercise program.

Meanwhile, the research group is developing a smartphone app to enable people to do the protocol at home using already commercially available devices.

Those considering IMST should consult with their doctor first. But thus far, IMST has proven remarkably safe, they said.

“It’s easy to do, it doesn’t take long, and we think it has a lot of potential to help a lot of people,” said Craighead.

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Wellness

Exercise to treat depression yields similar results to therapy

Depression is a leading cause of ill health and disability, affecting over 280 million people worldwide. Exercise is low-cost, widely available, and comes with additional health benefits, making it an attractive option for patients and healthcare providers. 

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Exercise may reduce symptoms of depression to a similar extent as psychological therapy, according to an updated Cochrane review. When compared with antidepressant medication, exercise also showed a similar effect, but the evidence was of low certainty.  

Depression is a leading cause of ill health and disability, affecting over 280 million people worldwide. Exercise is low-cost, widely available, and comes with additional health benefits, making it an attractive option for patients and healthcare providers. 

The review, conducted by researchers from the University of Lancashire, examined 73 randomized controlled trials including nearly 5,000 adults with depression. The studies compared exercise with no treatment or control interventions, as well as with psychological therapies and antidepressant medications. 

The results show that exercising can have a moderate benefit on reducing depressive symptoms, compared with no treatment or a control intervention. When compared with psychological therapy, exercise had a similar effect on depressive symptoms, based on moderate-certainty evidence from ten trials. Comparisons with antidepressant medication also suggested a similar effect, but the evidence is limited and of low certainty. Long-term effects are unclear as few studies followed participants after treatment.  

Side effects were rare, including occasional musculoskeletal injuries for those exercising and typical medication-related effects for those taking antidepressants, such as fatigue and gastrointestinal problems.

“Our findings suggest that exercise appears to be a safe and accessible option for helping to manage symptoms of depression,” said Professor Andrew Clegg, lead author of the review. “This suggests that exercise works well for some people, but not for everyone, and finding approaches that individuals are willing and able to maintain is important.” 

The review found that light to moderate intensity exercise may be more beneficial than vigorous exercise, and that completing between 13 and 36 exercise sessions was associated with greater improvements in depressive symptoms.

No single type of exercise was clearly superior, although mixed exercise programmes and resistance training appeared more effective than aerobic exercise alone. Some forms of exercise, such as yoga, qigong and stretching, were not included in the analysis and represent areas for future research. Long-term effects are unclear as few studies followed participants after treatment.

This update adds 35 new trials to previous versions published in 2008 and 2013. Despite the additional evidence, the overall conclusions remain largely unchanged. This is because the majority of trials were small, with fewer than 100 participants, making it difficult to draw firm conclusions.

“Although we’ve added more trials in this update, the findings are similar,” said Professor Clegg. “Exercise can help people with depression, but if we want to find which types work best, for who and whether the benefits last over time, we still need larger, high-quality studies. One large, well-conducted trial is much better than numerous poor quality small trials with limited numbers of participants in each.”

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Aerobic exercise may be most effective for relieving depression/anxiety symptoms

While supervised and group exercise may be best for reducing depression, shorter (up to 8 weeks) lower intensity exercise may be best for relieving anxiety.

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Aerobic exercise, such as running, swimming, and dancing, may be most effective for relieving the symptoms of depression and anxiety, finds an overarching (umbrella) review and data synthesis of the available evidence, published in the British Journal of Sports Medicine.

While supervised and group exercise may be best for reducing depression, shorter (up to 8 weeks) lower intensity exercise may be best for relieving anxiety.

But all forms of exercise are as good as, or better than, medication and talking therapies, regardless of age or sex, the findings indicate.

Depression and anxiety affect up to 1 in 4 people worldwide, with the highest prevalence among young people and women, note the researchers. And previously published research suggests that exercise compares favourably with psychotherapy and medication for easing the symptoms, they add.

But it’s not clear how well exercise might work at different ages, frequency, and intensities.And previous overarching syntheses have focused only on adults or included participants with potentially influential factors, such as long term conditions.

The researchers therefore set out to comprehensively estimate the impact of exercise on depression and anxiety symptoms across all age ranges, including in those with and without a clinical diagnosis; and to find out whether the type, length, frequency, intensity, and supervision of exercise, and individual or group participation might influence outcomes.

They scoured research databases for pooled data analyses of randomised controlled trials that compared exercise with either another type of activity, or a placebo, or no active intervention, and published in English up to July 2025.

Eligibility criteria included planned, structured, repetitive and purposeful physical activities to improve physical and mental health; and all forms, intensities, frequencies and settings (individual or group) of exercise.

For depression, 57 pooled data analyses, comprising 800 component studies, involving 57,930 participants aged between 10 and 90, were included in the overarching synthesis.

These participants had been diagnosed with clinical depression or were experiencing depressive symptoms, but had no other co-existing conditions. Exercise interventions were categorised as aerobic (19 pooled data analyses); resistance, such as strength training (8); mind–body, such as yoga, tai-chi, and qigong (16); or a mix (39).

For anxiety, 24 pooled data analyses, comprising 258 component studies, involving 19,368 participants, aged between 18 and 67, were included in the overarching synthesis. Exercise interventions were categorised as aerobic (7); resistance (1); mind–body (9); or mixed (13).

Synthesis of the pooled data analyses showed that exercise had a medium sized effect on depression symptoms and a small to medium sized effect on anxiety symptoms, with the most substantial effects found for young adults (18-30) and women who had recently given birth.

All forms of exercise were associated with positive effects, with aerobic, group based and supervised formats the most effective for relieving depression symptoms. Aerobic, resistance, mind–body and a mix of different exercise formats had a medium sized impact on the relief of anxiety symptoms.

The effects were on a par with, or better than, medication or talking therapies.

The researchers acknowledge some limitations to their findings. These include the variable interpretations of exercise intensity and length among the pooled data analyses, and the relative paucity of pooled data analyses on the impact of exercise across the lifespan.

But they nevertheless conclude: “This meta-meta-analysis provides robust evidence that exercise effectively reduced depression and anxiety symptoms across all age groups, comparable with, or exceeding, traditional pharmacological or psychological interventions.

“Group and supervised formats gave the most substantial benefits, underscoring the importance of social factors in mental health interventions. With evidence that different characteristics of exercise appear to impact depression and anxiety at varying magnitudes, tailored exercise programmes must be prescribed.”

They continue: “Given the cost effectiveness, accessibility, and additional physical health benefits of exercise, these results underscore the potential for exercise as a first line intervention, particularly in settings where traditional mental health treatments may be less accessible or acceptable.”

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Dance effective in fighting against cognitive decline in Parkinson’s

Dance can be beneficial in halting the cognitive decline associated with Parkinson’s disease and, for some participants, they even showed signs of improvement.

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new study led by researchers at York University shows that dance can be beneficial in halting the cognitive decline associated with Parkinson’s disease and, for some participants, they even showed signs of improvement. Faculty of Health Associate Professor Joseph DeSouza, co-author of the study, says since cognition is nearly always expected to decline as the illness progresses and this was a multi-year study, the findings are quite remarkable.

“The classic progression of Parkinson’s disease is that cognition gets bad as well as motor symptoms, and some people already have significantly impaired cognition by the time they get to a diagnosis,” says DeSouza, who worked closely on the study with lead author Simran Rooprai, a second-year interdisciplinary master’s student at York. “So finding that no one in the dance group had further cognitive decline over six years, we think that’s pretty significant.”

The study, published in the Journal of Alzheimer’s Disease, looked at 43 participants from a group with Parkinson’s participating in the Sharing Dance Parkinson’s program at the National Ballet of Canada and the Dance for Parkinson’s Disease program through Trinity St. Paul’s Church, both located in Toronto, and a reference group of 28 people with Parkinson’s who were sedentary and not engaged in any physical activity.

Dance classes would begin with a seated warm-up, followed by “barre” exercises, and sessions ended with floorwork dances. One group was also taught a specific choreography in preparation for an upcoming performance.

The researchers found that the cognitive scores for the dance group had improved compared to the reference group, where they saw no changes, or a slight decline.

Rooprai says the research shows that dance could help with cognitive preservation, or perhaps even improvement in those with Parkinson’s.

“We can’t really fix the brain, but we’re trying to show that with dance, maybe we can delay the onset of further cognitive decline,” says Rooprai.

While Parkinson’ disease is most closely associated with the characteristic tremors of the disease, it is also associated with cognitive decline, with four out of five people with the illness eventually experiencing severe cognition problems as the disease progresses.

Earlier research led by DeSouza at York that he worked on with fellow author and former York PhD student Karolina Bearss, now a professor at Algoma University, has shown the benefits of dance for depression and motor symptoms of the illness, suggesting the benefits of dance are widespread.

“Dance engages many parts of the brain,” says Rooprai. “While dancing, you’re listening to music, learning new steps, remembering the different sequences, and you’re engaging with other dancers so you’re aware of your surroundings. Dance is physical, mental, and social all at once.”

DeSouza and Rooprai are working on a follow-up study in collaboration with the Baycrest Academy for Research and Education, where they will look at how working memory is affected for people with Parkinson’s taking weekly dance classes.

“Given how dance has so many different positive impacts on cognition, we expect to see improvements,” says DeSouza.

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