Fitness
The 45-second exercises that are as good as a 30-minute walk
When it comes to our health, every second of movement counts. That’s why I’m such a big advocate of making time for short bursts of exercise throughout the day – an approach known as “exercise snacking”.
Now, a recent study from researchers in China has investigated just how effective this approach to fitness is for our health. It found that breaking up eight hours of sitting with 10 squats every 45 minutes led to a bigger drop in our blood sugar than going for a 30 minute walk.
The thinking is that more regular movement is better at mopping up excess sugar in our blood following a meal. It minimises the rollercoaster of blood sugar spikes, which can increase our Type 2 diabetes risk and affect mood, energy levels and productivity.
The more you “exercise snack” throughout the day, the better it is for your blood sugar, blood pressure, cholesterol, weight management and even your mood. Every time you exercise, you’re releasing feel-good endorphins.
As well as squatting, any other short burst of exercise will trigger a similar result. Tie them onto existing habits to encourage movement throughout your day, without having to carve out big chunks of time.
My ideal recommendation would be to get up every 30 minutes and move for three minutes. Most of us spend nine to 10 hours a day seated and prolonged periods of sitting are detrimental to our long-term health and getting up regularly breaks that up. But any movement, even just the 45 seconds they looked at in the study, is beneficial.
Do a fitness salutation as soon as you wake up
Fitness
Aldi’s new fitness range includes an exercise bike for £79.99
If you want some kit to help you hit your fitness goals in the new year, Aldi (of all places) might be the best place to look thanks to its new sports and leisure range.
While I’ve long since stopped being surprised by the contents of its middle aisle, I was impressed by how affordable the products are. There’s an exercise bike for just £79.99, yoga mats for £5.49, and a selection of resistance bands for only £2.49 each, hitting stores from 29 December.
An exercise bike for less than £100 is a rarity, and though I’m yet to test the range, all the hallmarks of a solid product are there – perhaps this is why Aldi has limited purchases to one per customer. The bike has a simple LCD to display basic metrics, a belt-driven 6kg flywheel, a sturdy steel frame and a centralised knob for adjusting the resistance.
But, as a fitness writer, the most exciting inclusion for me is the free weights – you’ll be amazed how much you can do with just a single kettlebell and a few foundational exercises. If you’re looking to exercise at home in the new year, sending your health, fitness and strength levels soaring in the process, I think these should be your first port of call.
From 2 January (these specific items are running a little behind schedule), you can pick up a 6kg or 8kg kettlebell for £7.99, and a 10kg or 12kg kettlebell for £12.99, which is incredibly cheap compared to the competition – Amazon’s 6kg kettlebell costs a around £14, at the time of writing.
Don’t expect a cast iron build for this price. These ‘bells have a plastic body and are filled with sand, but they still have a wide handle for kettlebell swings and an ergonomic shape suitable for explosive exercises like cleans. They’re also priced so reasonably you might consider picking up a few weight options, or an equally weighted pair for more versatility.
If you’re after a metal finish, you’ll find it in the adjustable dumbbell set, which costs £19.99. Each set comes with a central steel bar, a selection of 2kg and 1kg cast iron weight plates and a couple of spring collars to lock them into place.
Like the kettlebells, it might be worth picking up a pair to widen your training horizons. Then you can adjust the weight of the dumbbells to suit different strength training exercises, helping you build muscle at home. Or, if you want a set weight dumbbell for more dynamic workouts like HIIT classes, you can pick up a 5kg rubber-coated pair for the same price.
The range is available in-store from 29 December. So, if you’re after a bargain, you’ll have to be quick. Then the only challenge is carrying your new weights home.
Fitness
How much should you exercise to actually lose weight?
Two and a half hours of physical exercise per week may be essential for achieving any significant reduction in body weight, a new review of studies has found.
The review, published in the journal JAMA Network Open on Thursday, analysed previously conducted clinical trials probing the effect of exercise on weight loss.
It found that doing about 30 minutes of exercise a week was linked to only a modest reduction in body weight, body fat measures, and waist circumference among adults with obesity.
However, aerobic exercise exceeding 150 minutes per week, at moderate intensity or greater, was more likely to achieve clinically important reductions in weight-loss parameters.
Aerobic exercise is any type of physical activity that raises a person’s heart rate and gets them moving and sweating for a sustained period of time.
Previous studies have shown this type of cardio exercise provides a range of benefits when coupled with a healthy diet, enabling people to think more clearly, and even protect against cognitive decline with age.
Some previous studies have estimated the optimal minimum period of exercise at between 30 and 45 minutes.
As little as 30 minutes of aerobic exercise has been linked to significantly better performance on cognitive quizzes.
One study showed that about 30 minutes of treadmill walking for 10 consecutive days may significantly reduce depression.
But the exact amount of optimal exercise needed for weight loss has been unclear.
Health guidelines suggest that at least 150 minutes a week of aerobic exercise at moderate intensity is key to achieving meaningful weight loss of about 2 to 3kg. Some studies suggest a moderate intensity physical activity of about 225 to 420 minutes per week is required for weight loss of 5 to 7.5 kg.
The new study assessed data from over 100 clinical trials examining the effect of exercise over a duration of at least eight weeks on overweight or obese adults.
Researchers found that 30 minutes of aerobic exercise per week may enable adults who are overweight or have obesity to “slightly reduce” body weight.
However, they found the “greatest, clinically important” improvement from aerobic exercise of over 150 minutes per week.
“Aerobic training at least 150 minutes per week may be needed to achieve important reductions in waist circumference and body fat,” they said in the review.
“Longer durations of aerobic exercise may be associated with more beneficial weight or waist circumference outcomes.”
Fitness
Why you should do strength training at 70: try these exercises
A decline in health and fitness isn’t inevitable once you cross into your seventies. Just take look at the recent snaps of Pierce Brosnan — age 70 — shirt off in the wilds of Yellowstone National Park. Or think of Angela Rippon, 79, high-kicking it on Strictly; Helen Mirren, 78, on the red carpet; or the verve of Bruce Springsteen, playing a three-hour set in Hyde Park, London, in the summer at the age of 73. These are just four examples of a host of septuagenarians and octogenarians who have demonstrated that vitality is possible at any age — if you’re prepared to work for it.
Skeletal muscle mass and strength decline more rapidly as we age and can affect physical performance, but this
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