Only walking for exercise? Here’s how to get the most out of it
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We’re living longer than in previous generations, with one in eight elderly Australians now aged over 85. But the current gap between life expectancy (“lifespan”) and health-adjusted life expectancy (“healthspan”) is about ten years. This means many of us live with significant health problems in our later years.
To increase our healthspan, we need planned, structured and regular physical activity (or exercise). The World Health Organization recommends 150–300 minutes of moderate-intensity exercise – such as brisk walking, cycling and swimming – per week and muscle strengthening twice a week.
Yet few of us meet these recommendations. Only 10% meet the strength-training recommendations. Lack of time is one of the most common reasons.
Walking is cost-effective, doesn’t require any special equipment or training, and can be done with small pockets of time. Our preliminary research, published this week, shows there are ways to incorporate strength-training components into walking to improve your muscle strength and balance.
Why walking isn’t usually enough
Regular walking does not appear to work as muscle-strengthening exercise.
In contrast, exercises consisting of “eccentric” or muscle-lengthening contractions improve muscle strength, prevent muscle wasting and improve other functions such as balance and flexibility.
Typical eccentric contractions are seen, for example, when we sit on a chair slowly. The front thigh muscles lengthen with force generation.
Our research
Our previous research found body-weight-based eccentric exercise training, such as sitting down on a chair slowly, improved lower limb muscle strength and balance in healthy older adults.
We also showed walking down stairs, with the front thigh muscles undergoing eccentric contractions, increased leg muscle strength and balance in older women more than walking up stairs. When climbing stairs, the front thigh muscles undergo “concentric” contractions, with the muscles shortening.
It can be difficult to find stairs or slopes suitable for eccentric exercises. But if they could be incorporated into daily walking, lower limb muscle strength and balance function could be improved.
This is where the idea of “eccentric walking” comes into play. This means inserting lunges in conventional walking, in addition to downstairs and downhill walking.
In our new research, published in the European Journal of Applied Physiology, we investigated the effects of eccentric walking on lower limb muscle strength and balance in 11 regular walkers aged 54 to 88 years.
The intervention period was 12 weeks. It consisted of four weeks of normal walking followed by eight weeks of eccentric walking.
The number of eccentric steps in the eccentric walking period gradually increased over eight weeks from 100 to 1,000 steps (including lunges, downhill and downstairs steps). Participants took a total of 3,900 eccentric steps over the eight-week eccentric walking period while the total number of steps was the same as the previous four weeks.
We measured the thickness of the participants’ front thigh muscles, muscle strength in their knee, their balance and endurance, including how many times they could go from a sitting position to standing in 30 seconds without using their arms. We took these measurements before the study started, at four weeks, after the conventional walking period, and at four and eight weeks into the eccentric walking period.
We also tested their cognitive function using a digit symbol-substitution test at the same time points of other tests. And we asked participants to complete a questionnaire relating to their activities of daily living, such as dressing and moving around at home.
Finally, we tested participants’ blood sugar, cholesterol levels and complement component 1q (C1q) concentrations, a potential marker of sarcopenia (muscle wasting with ageing).
What did we find?
We found no significant changes in any of the outcomes in the first four weeks when participants walked conventionally.
From week four to 12, we found significant improvements in muscle strength (19%), chair-stand ability (24%), balance (45%) and a cognitive function test (21%).
Serum C1q concentration decreased by 10% after the eccentric walking intervention, indicating participants’ muscles were effectively stimulated.
The sample size of the study was small, so we need larger and more comprehensive studies to verify our findings and investigate whether eccentric walking is effective for sedentary people, older people, how the different types of eccentric exercise compare and the potential cognitive and mental health benefits.
But, in the meantime, “eccentric walking” appears to be a beneficial exercise that will extend your healthspan. It may look a bit eccentric if we insert lunges while walking on the street, but the more people do it and benefit from it, the less eccentric it will become.
Ken Nosaka, Professor of Exercise and Sports Science, Edith Cowan University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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What’s So Special About Alpha-Lipoic Acid?
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The Access-All-Areas Antioxidant
Alpha-Lipoic Acid (ALA) is one of the most bioavailable antioxidants in existence. A bold claim, but most antioxidants are only water-soluble or fat-soluble, whereas ALA is both. This has far-reaching implications—and we mean that literally, because its “go everywhere” status means that it can access (and operate in) all living cells of the human body.
We make it inside our body, and we can also get it in our diet, or take it as a supplement.
What foods contain it?
The richest food sources are:
- For the meat-eaters: organ meats
- For everyone: broccoli, tomatoes, & spinach
However, supplements are more efficient at delivering it, by several orders of magnitude:
Read more: Lipoic acid – biological activity and therapeutic potential
What are its benefits?
Most of its benefits are the usual benefits you would expect from any antioxidant, just, more of it. In particular, reduced inflammation and slowed skin aging are common reasons that people take ALA as a supplement.
Does it really reduce inflammation?
Yes, it does. This one’s not at all controversial, as this systematic review of studies shows:
(C-reactive protein is a marker of inflammation)
Does it really reduce skin aging?
Again yes—which again is not surprising for such a potent antioxidant; remember that oxidative stress is one of the main agonists of cellular aging:
As a special feature, ALA shows particular strength against sun-related skin aging, because of how it protects against UV radiation and increases levels of gluthianone, which also helps:
- Photochemical stability of lipoic acid and its impact on skin ageing
- Modern approach to topical treatment of aging skin
Where can I get some?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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Triphala Against Cognitive Decline, Obesity, & More
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Triphala is not just one thing, it is a combination of three plants being used together as one medicine:
- Alma (Emblica officinalis)
- Bibhitaki (Terminalia bellirica)
- Haritaki (Terminalia chebula)
…generally prepared in a 1:1:1 ratio.
This is a traditional preparation from ayurveda, and has enjoyed thousands of years of use in India. In and of itself, ayurveda is classified as a pseudoscience (literally: it doesn’t adhere to scientific method; instead, it merely makes suppositions that seem reasonable and acts on them), but that doesn’t mean it doesn’t still have a lot to offer—because, simply put, a lot of ayurvedic medicines work (and a lot don’t).
So, ayurveda’s unintended job has often been finding things for modern science to test.
For more on ayurveda: Ayurveda’s Contributions To Science (Without Being Itself Rooted in Scientific Method)
So, under the scrutiny of modern science, how does triphala stand up?
Against cognitive decline
It has most recently come to attention because one of its ingredients, the T. chebula, has been highlighted as effective against mild cognitive impairment (MCI) by several mechanisms of action, via its…
❝171 chemical constituents and 11 active constituents targeting MCI, such as flavonoids, which can alleviate MCI, primarily through its antioxidative, anti-inflammatory, and neuroprotective properties. T. Chebula shows potential as a natural medicine for the treatment and prevention of MCI.❞
Read in full: The potential of Terminalia chebula in alleviating mild cognitive impairment: a review
The review was quite groundbreaking, to the extent that it got a pop-science article written about it:
We’d like to talk about those 11 active constituents in particular, but we don’t have room for all of them, so we’ll mention that one of them is quercetin, which we’ve written about before:
Fight Inflammation & Protect Your Brain, With Quercetin
For gut health
It’s also been found to improve gut health by increasing transit time, that is to say, how slowly things move through your gut. Counterintuitively, this reduces constipation (without being a laxative), by giving your gut more time to absorb everything it needs to, and more time for your gut bacteria to break down the things we can’t otherwise digest:
For weight management
Triphala can also aid with weight reduction, particularly in the belly area, by modulating our insulin responses to improve insulin sensitivity:
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon 😎
Enjoy!
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The S.T.E.P.S. To A Healthier Heart
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Stepping Into Better Heart Health
This is Dr. Jennifer H. Mieres, FACC, FAHA, MASNC. she’s an award-winning (we counted 9 major awards) professor of cardiology, and a leading advocate for women’s heart health. This latter she’s done via >70 scientific publications, >100 research presentations at national and international conferences, 3 books so far, and 4 documentaries, including the Emmy-nominated “A Woman’s Heart”.
What does she want us to know?
A lot of her work is a top-down approach, working to revolutionize the field of cardiology in its application, to result in far fewer deaths annually. Which is fascinating, but unless you’re well-placed in that industry, not something too actionable as an individual (if you are well-placed in that industry, do look her up, of course).
For the rest of us…
Dr. Mieres’ S.T.E.P.S. to good heart health
She wants us to do the following things:
1) Stock your kitchen with heart health in mind
This is tied to the third item in the list of course, but it’s a critical step not to be overlooked. It’s all very well to know “eat more fiber; eat less red meat” and so forth, but if you go to your kitchen and what’s there is not conducive to heart health, you’re just going to do the best with what’s available.
Instead, actually buy foods that are high in fiber, and preferably, foods that you like. Not a fan of beans? Don’t buy them. Love pasta? Go wholegrain. Like leafy greens in principle, but they don’t go with what you cook? Look up some recipes, and then buy them.
Love a beef steak? Well we won’t lie to you, that is not good for your heart, but make it a rare option—so to speak—and enjoy it mindfully (see also: mindful eating) once in a blue moon for a special occasion, rather than “I don’t know what to cook tonight, so sizzle sizzle I guess”.
Meal planning goes a long way for this one! And if meal-planning sounds like an overwhelming project to take on, then consider trying one of the many healthy-eating meal kit services that will deliver ingredients (and their recipes) to your door—opting for a plants-forward plan, and the rest should fall into place.
2) Take control of your activity
Choose to move! Rather than focusing on what you can’t do (let’s say, those 5am runs, or your regularly-scheduled, irregularly attended, gym sessions), focus on what you can do, and do it.
See also: No-Exercise Exercise!
3) Eat for a healthier heart
This means following through on what you did on the first step, and keeping it that way. Buying fresh fruit and veg is great, but you also have to actually eat it. Do not let the perishables perish!
For you too, dear reader, are perishable (and would presumably like to avoid perishing).
This item in the list may seem flippant, but actually this is about habit-forming, and without it, the whole plan will grind to a halt a few days after your first heart-health-focused shopping trip.
See also: Where Nutrition Meets Habits!
4) Partner with your doctor, family, and friends
Good relationships, both professional and personal, count for a lot. Draw up a plan with your doctor; don’t just guess at when to get this or that checked—or what to do about it if the numbers aren’t to your liking.
Partnership with your doctor goes both ways, incidentally. Read up, have opinions, discuss them! Doing so will ultimately result in better care than just going in blind and coming out with a recommendation you don’t understand and just trust (but soon forget, because you didn’t understand).
And as for family and friends, this is partly about social factors—we tend to influence, and be influenced by, those around us. It can be tricky to be on a health kick if your partner wants take-out every night, so some manner of getting everyone on the same page is important, be it by compromise or, in an ideal world, gradually trending towards better health. But any such changes must come from a place of genuine understanding and volition, otherwise at best they won’t stick, and at worst they’ll actively create a pushback.
Same goes for exercise as for diet—exercising together is a good way to boost commitment, especially if it’s something fun (dance classes are a fine example that many couples enjoy, for example).
5) Sleep more, stress less, savor life
These things matter a lot! Many people focus on cutting down salt or saturated fat, and that can be good if otherwise consumed to excess, but for most people they’re not the most decisive factors:
Hypertension: Factors Far More Relevant Than Salt ← sleep features here!
Stress is also a huge one, and let’s put it this way: people more often have heart attacks during a moment of excessive emotional stress—not during a moment when they had a bit too much butter on their toast.
It’s not even just that acute stress is the trigger, it’s that chronic stress is a contributory factor that erodes the body’s ability to handle the acute stress.
Changing this may seem “easier said than done” because often the stressors are external (e.g. work pressure, financial worries, caring for a sick relative, relationship troubles, major life change, etc), but it is possible to find peace even in the chaos of life:
Want to know more from Dr. Mieres?
You might like this book of hers, which goes into each of the above items in much more depth than we have room to here:
Heart Smarter for Women: Six Weeks to a Healthier Heart – by Dr. Jennifer Mieres
Enjoy!
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How To Make Drinking Less Harmful
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Making Drinking Less Harmful
We often talk of the many ways alcohol harms our health, and we advocate for reducing (or eliminating) its consumption. However, it’s not necessarily as easy as all that, and it might not even be a goal that everyone has. So, if you’re going to imbibe, what can you do to mitigate the harmful effects of alcohol?
There is no magical solution
Sadly. If you drink alcohol, there will be some harmful effects, and nothing will completely undo that. But there are some things that can at least help—read on to learn more!
Coffee
It’s not the magical sober-upperer that some would like it to be, but it is good against the symptoms of alcohol intoxication, and slightly reduces the harm to your body, because it is:
- Hydrating (whereas alcohol is dehydrating)
- A source of antioxidants (whereas alcohol causes oxidative stress, which has nothing to do with psychological stress, and is a kind of cellular damage)
- A stimulant, assuming it is not decaffeinated (it’s worth noting that its stimulant effects work partly by triggering vasoconstriction, which is the opposite of the vasodilation caused by alcohol)
To this end, the best coffee for anti-alcohol effects should be:
- Caffeinated, and strong
- Long (we love espresso, but we need hydration here and that comes from volume!)
- Without sugar (you don’t want to create an adverse osmotic gradient to leech water from your body)
As for milk/cream/whatever, have it or don’t, per your usual preference. It won’t make any difference to the alcohol in your system.
Antioxidants, polyphenols, flavonoids, and things with similar mechanisms
We mentioned that coffee contains antioxidants, but if you want to really bring out the heavy guns, taking more powerful antioxidants can help a lot. If you don’t have the luxury of enjoying berries and cacao nibs by the handful, supplements that have some similar benefits are a perfectly respectable choice.
For example, you might want to consider green tea extract:
L-theanine 200mg (available on Amazon)
Specialist anti-alcohol drugs
These are somewhat new and the research is still ongoing, but for example:
Dihydromyricetin (DHM) as a novel anti-alcohol intoxication medication
In short, DHM is a flavonoid (protects against the oxidative stress caused by alcohol, and has been found to reduce liver damage—see the above link) and also works on GABA-receptors (reduces alcohol withdrawal symptoms after cessation of drinking, and thus also reduces hangovers).
Once again: the marketing claims of such drugs may be bold, but there’s a lot that’s not known and they’re not a magic pill. They do NOT mean you can take them alongside drinking and drink what you like with impunity. However, they may help mitigate some of the harmful effects of alcohol. If you wish to try them, these can be purchased at pharmacies or online, for example:
Alcohol Defense Capsules (available on Amazon)
Bottom line
Alcohol is bad for your health and none of the above will eliminate the health risks. But, if you’re going to have alcohol, then having the above things as well may at least somewhat reduce the harm done.
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Grain Brain – by Dr. David Perlmutter
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If you’re a regular 10almonds reader, you probably know that refined flour, and processed food in general, is not great for the health. So, what does this book offer more?
Dr. Perlmutter sets out the case against (as the subtitle suggests) wheat, carbs, and sugar. Yes, including wholegrain wheat, and including starchy vegetables such as potatoes and parsnips. Fruit does also come under scrutiny, a clear distinction is made between whole fruits and juices. In the latter case, the lack of fiber (along with the more readily absorbable liquid state) allows for those sugars to zip straight into our blood.
The book includes lots of stats and facts, and many study citations, along with infographics and clear explanations.
If the book has a weakness, it’s when it forgets to clarify something that was obvious to the author. For example, when he talks about our ancestors’ diets being 75% fat and 5% carbs, he neglects to mention that this is 75% by calorie count, not by mass or volume. This makes a huge difference! It’s the difference between a fat-guzzling engine, and someone who eats mostly fruit and oily nuts but also some very high-fat meat/organs.
The book’s strengths, on the other hand, are found in its explanation, backed by good science, of what wheat, along with excessive carbohydrates (especially sugar) can do to our body, including (and most focusedly, hence the title) our brain, leading the way to not just obvious metabolic disorders like diabetes, but also inflammatory diseases like Alzheimer’s.
Bottom line: you don’t have to completely revamp your diet if it’s working for you, but data is data, and this book has lots, making it well-worth a read.
Click here to check out Grain Brain, and learn about how to avoid inflaming yours!
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Tell Yourself a Better Lie – by Marissa Peer
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As humans, we generally lie to ourselves constantly. Or perhaps we really believe some of the things we tell ourselves, even if they’re not objectively necessarily true:
- I’ll always be poor
- I’m destined to be alone
- I don’t deserve good things
- Etc.
Superficially, it’s easy to flip those, and choose to tell oneself the opposite. But it feels hollow and fake, doesn’t it? That’s where Marissa Peer comes in.
Our stories that we tell ourselves don’t start where we are—they’re generally informed by things we learned along the way. Sometimes good lessons, sometimes bad ones. Sometimes things that were absolutely wrong and/or counterproductive.
Peer invites the reader to ask “What if…”, unravel how the unhelpful lessons got wired into our brains in the first place, and then set about untangling them.
“Tell yourself a better lie” does not mean self-deceit. It means that we’re the authors of our own stories, so we might as well make them work for us. Many things in life are genuinely fixed; others are open to interpretation.
Sorting one from the other, and then treating them correctly in a way that’s helpful to us? That’s how we can stop hurting ourselves, and instead bring our own stories around to uplift and fortify us.
Get Your Copy of “Tell Yourself A Better Lie” on Amazon Today!
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