
01 Worth wearing?
Do you swear by your smart watch? This is the technological age, which means most of us are fed data and numbers with every ride and sleep. Manufacturers proclaim these wearables will transform the most casual of cyclists into a peak performer by maximising each and every session, each and every day. Which is all well and good, of course, but have you ever asked yourself, how accurate is this data? That was the question posed by a team led by Ren-Jay Shei (and featured in the European Journal of Applied Physiology), who analysed many years' worth of literature on the subject. It's a fascinating insight into the efficacy of what many have come to rely on. Here's what they discovered:
VO₂ max feature
This requires improvement. Data compared five commercially available wrist-worn devices against respiratory gas analysis and found a mean percentage error of over 10% for the majority of devices. This is our recent experience with the Garmin Fenix 7, which is a training tool that costs over £500. Greater individualisation's required, say the researchers.
Heart rate
This might not surprise those of you who enjoy the occasional run to complement your bike training (as per Tour riders Primož Roglič, Mike Woods...) but wrist-based readings fluctuate as intensity increases. It's why heart rate variability readings can also be out, the researchers add. A chest strap is more consistent and more accurate.
●Sleep Again, results were inconsistent, with the researchers citing a 2021 study that stated "unstandardised, undisclosed and often unvalidated data outcomes and algorithms are among the main challenges".
Diese Geschichte stammt aus der September 2022-Ausgabe von Cycling Plus UK.
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Diese Geschichte stammt aus der September 2022-Ausgabe von Cycling Plus UK.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent? Anmelden

GANARY A COALMINE
The James Brown tune 'It's a Man's Man's Man's World' comes on the radio, filling the coach, and does nothing for my pre-event nerves as I sit surrounded by serious-looking, wiry, tanned men in Lycra. It's 6.30am, pitch black outside and I'm feeling very out of my depth as a relative newcomer to the world of clipless pedals and hurting for fun. Last night's stress dream involved being very unprepared to get married and being handed my great-grandmother-in-law-to-be's hideous silver dress with lace trim to wear minutes before the ceremony was due to start. I'll let you psychoanalyse that one.

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The toxic effects of pollution have been known about for years. 'Just two things of which you must beware: Don't drink the water and don't breathe the air!' sang 1960s satirist Tom Lehrer.Over recent decades, though, pollution has dropped down our list of things to worry about, thanks to ominously capitalised concerns such as Climate Change, AI, Global Conflict, Species Collapse, etc. That doesn't, unfortunately, mean the problem has expired. Air quality often exceeds safe limits, with far-reaching and crippling effects on our health.