Should I get a weighted vest to boost my fitness? And how heavy should it be?
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Exercise training while wearing a weighted vest is undergoing somewhat of a renaissance. Social media posts and trainers are promoting them as a potential strategy for improving fitness and health.
Exercising with additional weight attached to the body is nothing new. This idea has been used with soldiers for many centuries if not millennia – think long hikes with a heavy pack.
The modern weighted vest comes in a range of designs that are more comfortable and can be adjusted in terms of the weight added. But could one be helpful for you?
What the research says
One of the earliest research studies, reported in 1993, followed 36 older people wearing weighted vests during a weekly exercise class and at home over a 20-week period. Wear was associated with improvements in bone health, pain and physical function.
Since then, dozens of papers have evaluated the exercise effects of wearing a weighted vest, reporting a range of benefits.
Not surprisingly, exercise with a weighted vest increases physiological stress – or how hard the body has to work – as shown by increased oxygen uptake, heart rate, carbohydrate utilisation and energy expenditure.
Adding weight equal to 10% of body weight is effective. But it doesn’t appear the body works significantly harder when wearing 5% extra weight compared to body weight alone.
Does more load mean greater injury risk?
A small 2021 study suggested additional weights don’t alter the biomechanics of walking or running. These are important considerations for lower-limb injury risk.
The safety considerations of exercising with weighted vests have also been reported in a biomechanical study of treadmill running with added weight of 1% to 10% of body weight.
While physiological demand (indicated by heart rate) was higher with additional weight and the muscular forces greater, running motion was not negatively affected.
To date no research studies have reported increased injuries due to wearing weighted vests for recreational exercise. However a 2018 clinical study on weight loss in people with obesity found back pain in 25% of those wearing such vests. Whether this can be translated to recreational use in people who don’t have obesity is difficult to say. As always, if pain or discomfort is experienced then you should reduce the weight or stop vest training.
Better for weight loss or bone health?
While wearing a weighted vest increases the energy expenditure of aerobic and resistance exercise, research to show it leads to greater fat loss or retaining muscle mass is somewhat inconclusive.
One older study investigated treadmill walking for 30 minutes, three times a week in postmenopausal women with osteoporosis. The researchers found greater fat loss and muscle gain in the participants who wore a weighted vest (at 4–8% body weight). But subsequent research in obese older adults could not show greater fat loss in participants who wore weighted vests for an average of 6.7 hours per day.
There has been considerable interest in the use of weighted vests to improve bone health in older people. One 2003 study reported significant improvements in bone density in a group of older women over 32 weeks of weighted vest walking and strength training compared to a sedentary control group.
But a 2012 study found no difference in bone metabolism between groups of postmenopausal women with osteoporosis walking on a treadmill with or without a weighted vest.
Making progress
As with any exercise, there is a risk of injury if it is not done correctly. But the risk of weighted vest training appears low and can be managed with appropriate exercise progression and technique.
If you are new to training, then the priority should be to simply start exercising and not complicate it with wearing a weighted vest. The use of body weight alone will be sufficient to get you on the path to considerable gains in fitness.
Once you have a good foundation of strength, aerobic fitness and resilience for muscles, joints and bones, using a weighted vest could provide greater loading intensity as well as variation.
It is important to start with a lighter weight (such as 5% bodyweight) and build to no more than 10% body weight for ground impact exercises such as running, jogging or walking.
For resistance training such as squats, push-ups or chin-ups, progression can be achieved by increasing loads and adjusting the number of repetitions for each set to around 10 to 15. So, heavier loads but fewer repetitions, then building up to increase the load over time.
While weighted vests can be used for resistance training, it is probably easier and more convenient to use barbells, dumbbells, kettle bells or weighted bags.
The bottom line
Weighted vest training is just one tool in an absolute plethora of equipment, techniques and systems. Yes, walking or jogging with around 10% extra body weight increases energy expenditure and intensity. But training for a little bit longer or at a higher intensity can achieve similar results.
There may be benefits for bone health in wearing a weighted vest during ground-based exercise such as walking or jogging. But similar or greater stimulus to bone growth can be achieved by resistance training or even the introduction of impact training such as hopping, skipping or bounding.
Exercising with a weighted vest likely won’t increase your injury risk. But it must be approached intelligently considering fitness level, existing and previous injuries, and appropriate progression for intensity and repetition.
Rob Newton, Professor of Exercise Medicine, Edith Cowan University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Ricezempic: is there any evidence this TikTok trend will help you lose weight?
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If you spend any time looking at diet and lifestyle content on social media, you may well have encountered a variety of weight loss “hacks”.
One of the more recent trends is a home-made drink called ricezempic, made by soaking uncooked rice and then straining it to drink the leftover starchy water. Sounds delicious, right?
Its proponents claim it leads to weight loss by making you feel fuller for longer and suppressing your appetite, working in a similar way to the sought-after drug Ozempic – hence the name.
So does this drink actually mimic the weight loss effects of Ozempic? Spoiler alert – probably not. But let’s look at what the evidence tells us.
New Africa/Shutterstock How do you make ricezempic?
While the recipe can vary slightly depending on who you ask, the most common steps to make ricezempic are:
- soak half a cup of white rice (unrinsed) in one cup of warm or hot water up to overnight
- drain the rice mixture into a fresh glass using a strainer
- discard the rice (but keep the starchy water)
- add the juice of half a lime or lemon to the starchy water and drink.
TikTokers advise that best results will happen if you drink this concoction once a day, first thing in the morning, before eating.
The idea is that the longer you consume ricezempic for, the more weight you’ll lose. Some claim introducing the drink into your diet can lead to a weight loss of up to 27 kilograms in two months.
Resistant starch
Those touting ricezempic argue it leads to weight loss because of the resistant starch rice contains. Resistant starch is a type of dietary fibre (also classified as a prebiotic). There’s no strong evidence it makes you feel fuller for longer, but it does have proven health benefits.
Studies have shown consuming resistant starch may help regulate blood sugar, aid weight loss and improve gut health.
Research has also shown eating resistant starch reduces the risk of obesity, diabetes, heart disease and other chronic diseases.
Ricezempic is made by soaking rice in water. Kristi Blokhin/Shutterstock Resistant starch is found in many foods. These include beans, lentils, wholegrains (oats, barley, and rice – particularly brown rice), bananas (especially when they’re under-ripe or green), potatoes, and nuts and seeds (particularly chia seeds, flaxseeds and almonds).
Half a cup of uncooked white rice (as per the ricezempic recipe) contains around 0.6 grams of resistant starch. For optimal health benefits, a daily intake of 15–20 grams of resistant starch is recommended. Although there is no concrete evidence on the amount of resistant starch that leaches from rice into water, it’s likely to be significantly less than 0.6 grams as the whole rice grain is not being consumed.
Ricezempic vs Ozempic
Ozempic was originally developed to help people with diabetes manage their blood sugar levels but is now commonly used for weight loss.
Ozempic, along with similar medications such as Wegovy and Trulicity, is a glucagon-like peptide-1 (GLP-1) receptor agonist. These drugs mimic the GLP-1 hormone the body naturally produces. By doing so, they slow down the digestive process, which helps people feel fuller for longer, and curbs their appetite.
While the resistant starch in rice could induce some similar benefits to Ozempic (such as feeling full and therefore reducing energy intake), no scientific studies have trialled ricezempic using the recipes promoted on social media.
Ozempic has a long half-life, remaining active in the body for about seven days. In contrast, consuming one cup of rice provides a feeling of fullness for only a few hours. And simply soaking rice in water and drinking the starchy water will not provide the same level of satiety as eating the rice itself.
Other ways to get resistant starch in your diet
There are several ways to consume more resistant starch while also gaining additional nutrients and vitamins compared to what you get from ricezempic.
1. Cooked and cooled rice
Letting cooked rice cool over time increases its resistant starch content. Reheating the rice does not significantly reduce the amount of resistant starch that forms during cooling. Brown rice is preferable to white rice due to its higher fibre content and additional micronutrients such as phosphorus and magnesium.
2. More legumes
These are high in resistant starch and have been shown to promote weight management when eaten regularly. Why not try a recipe that has pinto beans, chickpeas, black beans or peas for dinner tonight?
3. Cooked and cooled potatoes
Cooking potatoes and allowing them to cool for at least a few hours increases their resistant starch content. Fully cooled potatoes are a rich source of resistant starch and also provide essential nutrients like potassium and vitamin C. Making a potato salad as a side dish is a great way to get these benefits.
In a nutshell
Although many people on social media have reported benefits, there’s no scientific evidence drinking rice water or “ricezempic” is effective for weight loss. You probably won’t see any significant changes in your weight by drinking ricezempic and making no other adjustments to your diet or lifestyle.
While the drink may provide a small amount of resistant starch residue from the rice, and some hydration from the water, consuming foods that contain resistant starch in their full form would offer significantly more nutritional benefits.
More broadly, be wary of the weight loss hacks you see on social media. Achieving lasting weight loss boils down to gradually adopting healthy eating habits and regular exercise, ensuring these changes become lifelong habits.
Emily Burch, Accredited Practising Dietitian and Lecturer, Southern Cross University and Lauren Ball, Professor of Community Health and Wellbeing, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Just Be Well – by Dr. Thomas Sult
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Firstly, what this is not: a “think yourself well” book. It’s not about just deciding to be well.
Rather, it’s about ensuring the foundations of wellness, from which the rest of good health can spring, and notably, an absence of chronic illness. In essence: enjoying chronic good health.
The prescription here is functional medicine, which stands on the shoulders of lifestyle medicine. This latter is thus briefly covered and the basics presented, but most of the book is about identifying the root causes of disease and eliminating them one by one, by taking into account the functions of the body’s processes, both in terms of pathogenesis (and thus, seeking to undermine that) and in terms of correct functioning (i.e., good health).
While the main focus of the book is on health rather than disease, he does cover a number of very common chronic illnesses, and how even in those cases where they cannot yet be outright cured, there’s a lot more that can be done for them than “take two of these and call your insurance company in the morning”, when the goal is less about management of symptoms (though that is also covered) and more about undercutting causes, and ensuring that even if one thing goes wrong, it doesn’t bring the entire rest of the system down with it (something that often happens without functional medicine).
The style is clear, simple, and written for the layperson without unduly dumbing things down.
Bottom line: if you would like glowingly good health regardless of any potential setbacks, this book can help your body do what it needs to for you.
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Master Your Core – by Dr. Bohdanna Zazulak
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In the category of “washboard abs”, this one isn’t particularly interested in how much or how little fat you have. What it’s more interested in is a strong, resilient, and stable core. Including your abs yes, but also glutes, hips, and back.
Nor is the focus on superhuman feats of strength, though certainly one could use these exercises to work towards that. Rather, here we see importance placed on functional performance, mobility, and stability.
Lest mobility and stability seem at odds with each other, understand:
- By mobility we mean the range of movement we are able to accomplish.
- By stability, we mean that any movement we make is intentional, and not because we lost our balance.
Functional performance, meanwhile, is a function of those two things, plus strength.
How does the book deliver on this?
There are exercises to do. Exercises of the athletic kind you might expect, and also exercises including breathing exercises, which gets quite a bit of attention too. Not just “do abdominal breathing”, but quite an in-depth examination of such. There are also habits to form, and lifestyle tweaks to make.
Of course, you don’t have to do all the things she suggests. The more you do, the better results you are likely to get, but if you adopt even some of the practices she recommends, you’re likely to see some benefits. And, perhaps most importantly, reduce age-related loss of mobility, stability, and strength.
Bottom line: a great all-rounder book of core strength, mobility, and stability.
Click here to check out Master Your Core and enjoy the more robust health that comes with it!
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The Philosophy Gym – by Dr. Stephen Law
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If you’d like to give those “little gray cells” an extra workout, this book is a great starting place.
Dr. Stephen Law is Director of Philosophy at the Department of Continuing Education, University of Oxford. As such, he’s no stranger to providing education that’s both attainable and yet challenging. Here, he lays out important philosophical questions, and challenges the reader to get to grips with them in a systematic fashion.
Each of the 25 questions/problems has a chapter devoted to it, and is ranked:
- Warm-up
- Moderate
- More Challenging
But, he doesn’t leave us to our own devices, nor does he do like a caricature of a philosopher and ask us endless rhetorical questions. Instead, he looks at various approaches taken by other philosophers over time, and invites the reader to try out those methods.
The real gain of this book is not the mere enjoyment of reading, but rather in taking those thinking skills and applying them in life… because most if not all of them do have real-world applications and/or implications too.
The book’s strongest point? That it doesn’t assume prior knowledge (and yet also doesn’t patronize the reader). Philosophy can be difficult to dip one’s toes into without a guide, because philosophers writing about philosophy can at first be like finding yourself at a party where you know nobody, but they all know each other.
In contrast, Law excels at giving quick, to-the-point ground-up summaries of key ideas and their progenitors.
In short: a wonderful way to get your brain doing things it might not have tried before!
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Dark Calories – by Dr. Catherine Shanahan
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You may be wondering: do we really need a 416-page book to say “don’t use vegetable oils”?
The author, who was a biochemist before becoming a family physician, takes a lot of care to explain in ways the non-chemists amongst us can understand (with molecular diagrams very well-labelled), exactly why certain seed/vegetable oils (both of those names being imprecise and unhelpful as umbrella terms) cause metabolic problems for us, when in contrast olive oil, avocado oil, and even peanut oil, do not.
Understanding is, for many, the root foundation of compliance. We are more likely to abide by rules we understand the logic behind, than seemingly arbitrary “thou shalt not…” proclamations.
So that’s an important strength of the book, demystifying various fats and how our body responds to them on a biochemical level, not just “is associated with such-and-such, based on observational population studies”. This kind of explanation clears up why, for example, seed oils correlate with obesity more than calories, sugar, wheat, or beef—having as it does to do with affecting our body’s ability to generate and use energy.
She also offers practical tips/reminders throughout, such as how “organic” does not necessarily mean “healthy” (indeed, many poisonous plants can be grown “organically”), and nor does “organic” mean “unrefined”, it speaks only for the conditions in which the raw product was first made, before other things were done to it later.
We learn a lot, too, about the processes of oxidation, the biochemistry behind that (more diagrams!), and of course the inflammatory response to same (an important factor in most if not all chronic disease).
The style is mostly very easy-to-read pop-science, though if you’re not a chemist, you’ll probably need to slow down for the biochemistry explanations (this reviewer certainly did).
Bottom line: this is more than just a litany against vegetable oils; it’s a ground-upwards education in metabolic biochemistry for the layperson, and what that means for us in terms of chronic disease risks.
Click here to check out Dark Calories, and learn what’s going on with these oils!
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Wise Old Fool
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How old is this dish? Well, let’s put it this way, it used to be called “𓅮𓏏𓈖” and remnants of it have been found at neolithic burial sites in Egypt. Nowadays it’s called “فول مدمس”, which gets rendered a lot of different ways in the Latin alphabet, but “fūl mudammas” is one option. For short, it’s just called “fūl”, which is pronounced like the English word “fool”, and it’s about the beans.
From chana masala with poori to frijoles refritos to beans on toast, lots of cultures have some version of this breakfast food, and all can be great (yes, even the beans on toast). But today we’re about this particular kind of morning protein, fiber, fats, and healthful spices.
You will need
- 2x 14 oz cans fava beans (other kinds of beans work as substitute; kidney beans are common substitution, but this writer prefers black beans personally if she doesn’t have fava in), drained
- 4 garlic cloves, crushed
- 1 tbsp extra virgin olive oil
- 1 teaspoon sweet cinnamon (or ½ sweet cinnamon stick)
- 1 tsp cumin seeds
- 1 tsp chili flakes
- 1 tsp paprika
- 1 tsp black pepper
- Juice of ½ lemon
- For the relish: 1 medium tomato, finely chopped; 1 tbsp extra virgin olive oil; 2 tbsp parsley, finely chopped
- To serve: 4 pitta breads, 2 eggs (omit if vegan), and a selection of pickled vegetables, drained
Method
(we suggest you read everything at least once before doing anything)
1) Add the olive oil to a saucepan over a medium heat; add the garlic, cumin seeds, and cinnamon. Keep these moving for a minute or two before moving to the next step.
2) Add the fava beans, as well as the other seasonings (chili flakes, paprika, black pepper), and mix thoroughly
3) Add 1 cup boiling water, and keep everything on a simmer for about 20 minutes, stirring often. Add the lemon juice while it’s simmering; when the beans start to break down and the mixture starts to thicken, it’s ready.
4) Mix the relish ingredients (finely chopped tomato, olive oil, parsley) thoroughly in a small bowl
5) Toast the pitta breads, and if using, soft-boil the eggs.
6) Serve! We suggest: fūl in a bowl, with one half of a soft-boiled egg per bowl, topped with the relish, and served with the pitta bread and pickled vegetables on the side.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)
- Making Friends With Your Gut (You Can Thank Us Later)
- Less Obvious Probiotic Benefits ← the pickled vegetables contain the probiotics here, while the beans are a great source of prebiotic fiber; this is why they work so well together
- Our Top 5 Spices: How Much Is Enough For Benefits?
- A Tale Of Two Cinnamons
- Eggs: All Things In Moderation?
Take care!
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