Jane McGuire is Tom's Guide's Fitness Managing Editor, which means she looks after everything fitness-related — from running gear and fitness trackers to yoga mats and sports bras. An avid runner, Jane has tested and reviewed fitness products for the past five years, so she knows what to look for when finding a good running watch or a pair of shorts with pockets big enough for your smartphone, running gels, and house keys.
Jane has run six marathons — the London Marathon five times, and the Berlin Marathon once -and is still on a quest to tick off all of the marathon majors. Her marathon PR is 3:30, which she ran in the New Balance Supercomp Elite V5's, but she also spends a lot of time talking about her ‘joy plan’, where she runs for happiness, not for PR’s.
Previous to Tom’s Guide, Jane worked for Runner’s World, where she co-hosted the Runner’s World podcast. She also presents on a YouTube channel called the Run Testers, alongside other running-mad journalists, where they review the latest shoes, kit, and tech. Her work has also appeared in Coach, Get Sweat Go, and Women’s Health.
When she's not pounding the pavements, you'll find Jane striding round the Surrey Hills, taking far too many photos of her spaniel, Toby.
Latest articles by Jane McGuire

6 moves, less than 30 minutes: The ‘fit over 40’ core workout engineered to build deep abdominal strength
By Jane McGuire published
This workout uses nothing than a dumbbell, has just six moves, and takes less than half an hour to give your core a good burn.

Not sit ups or crunches — I swapped them for this one lesser-known core move and my abs have never felt stronger
By Jane McGuire published
The bear plank leg reach challenges your core stability and strength

Exclusive: Can an Apple Watch actually spot perimenopause? I sat down with Apple to find out more about its new Women’s Health features
By Jane McGuire last updated
Apple just added perimenopause and menopause to the Apple Health app

It only takes 4 exercises and 1 dumbbell to sculpt your core, build your lower body, and burn fat, according to this personal trainer
By Jane McGuire published
It only takes 4 exercises and 1 dumbbell to sculpt your core, build your lower body, and burn fat, according to this personal trainer.

According to a Pilates instructor, this one exercise flattens your stomach more than 100s of crunches. I gave it a go for a week, and here are my results
By Jane McGuire published
According to a Pilates instructor, this one exercise flattens your stomach more than 100s of crunches.

Best smartwatches for women in 2026
By Jane McGuire last updated
We tested best smartwatches for women, from Samsung to Fitbit to Garmin and the Apple Watch.

I’m a personal trainer who works with clients aged 65+ daily. Here are the 2 exercises I always recommend when it comes to building mobility and balance
By Jane McGuire published
Two exercises I always recommend when it comes to building mobility and balance.

The best trail running shoes in 2026 for men and women
By Nick Harris-Fry last updated
We put the best trail running shoes to the test to help you find a comfortable, durable, supportive pair for your next off-road run.

The at-home Barbie Pilates routine: I replicated Margot Robbie’s core workout without a gym
By Jane McGuire last updated
Try these Pilates exercises inspired by Margot Robbie's routine to get in shape for 'Barbie.'

Forget sit-ups and crunches: I use this simple Pilates exercise to build deep core strength and shoulder stability
By Jane McGuire published
I use this simple Pilates exercise to build deep core strength and shoulder stability.

Forget crunches, sit-ups, and planks: This 10-minute standing ab workout blasts your core while building functional strength
By Jane McGuire published
Build functional strength in your core using these 6 exercises.

I spent two weeks with the $99 Fitbit Air — here are my 3 reasons to buy (and 3 reasons to skip)
By Jane McGuire published
I've been living with the Fitbit Air, and these are my reasons to buy or skip.

I just got hit by the Ultrahuman data breach — here's what hackers stole from my account
By Jane McGuire last updated
Ultrahuman users have been affected by a data breach and I was among them, here's exactly what's been stolen.

Oura Ring 5 hands-on review: I’ve worn the world’s smallest smart ring for a week, and it changes fitness tracking forever
By Jane McGuire published
Not yet ratedShrunk by 40%, this is the smart ring to beat

I went for a run with the Fitbit Air and Garmin Forerunner 70 to see how the $99 tracker compared, and I’m impressed
By Jane McGuire published
The screenless Fitbit Air is the talk of the town right now, and here's how it measured up when compared to the Garmin Forerunner 70.

I tested the Fitbit Air vs Whoop 5.0 side by side — here's the winner
By Jane McGuire last updated
Both the new Fitbit Air and the Whoop 5.0 help you to track everything you need without the distraction of notifications. Here's the one I recommend based on my side-by-side testing.

I’ve worn the new Oura Ring 5, and it really is tiny: Here’s why I think it’s the wearable to beat in 2026
By Jane McGuire last updated
Here's everything you need to know about the new Oura Ring 5

Your Oura Ring just got new features: Here’s what launched today, and what’s coming next week
By Jane McGuire published
Oura has announced a new suite of features that will roll out to the Oura Ring Gen3, Oura Ring 4, and Oura Ring 4 Ceramic.

The best Nike running shoes in 2026
By Nick Harris-Fry last updated
Looking into buying a record breaking Nike running shoe or just want a reliable trainer to level up your running journey? We've tested them out for you — here's our top picks.

There's no such thing as the best running shoes — but here are our top picks, tested by 3 runners
By Nick Harris-Fry, Jane McGuire, Jessica Downey last updated
We've tested hundreds of running shoes and selected our favorites to help make your runs more comfortable and enjoyable.

I’ve worn the $99 Fitbit Air and $349 Oura Ring 4 to track my sleep for a week — here's the winner
By Jane McGuire published
I've worn the Oura Ring 4 and Fitbit Air for a week; here are the similarities and differences in terms of sleep tracking.

Forget sit-ups — this exercise targets your deep core and is great for beginners, seniors, or anyone with tight hip flexors
By Jane McGuire last updated
Here's why elevating your legs during crunches can make all the difference to your core

Over 40? This 10-minute physical therapist workout builds full-body strength with just 4 exercises
By Jane McGuire published
Strength training is essential during all stages of life, but especially for women in their 40s, as hormones begin to shift during perimenopause and menopause. Here's a workout to try.
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