Wrist-based HR vs Chest Strap

[Frosty]

My old strap that i use quiet happily gives me the Cadence, VOS & VO2Max on the 920XT. I would however like to know if by using the old strap on the 735XT it can give you the LTH, and if using no strap at all, can the watch still give you cadence while running.

cadence - without the strap.

117 when I move my arm back and forth like a runner would do. I assume you would know a value relative to your running style.

[Frosty]

LTH can only be checked once I've done the VO2max guided test.

 

Can answer that part of your question tomorrow

[Frosty]

Hi Gerald

 

Please do a comp. for MTBking too. I believe the wrist based measurement is poor due to the shaking involved.

I'll try, just not sure when. Our next MTB race recce is the weekend after next, but I'll be in CPT that weekend.

 

Will let you know when I do.

[Frosty]

I also wonder if there will be a difference when one goes running.

 

I am also thinking about a watch with the wrist based HRM for running purposes but don't want to invest the money if the readings are way different.

 

Will appreciate it if you can give a review on running as well some time. I don't like wearing watches during the day so if I buy a watch it will only be for running purposes.

While in CPT, I need to do some exercise to maintain my Vitality Active Rewards. It seems that running (plodding along, I prefer to call it) will be both on & off road.

 

This watch, BTW, is extremely light and I hardly notice it on my arm.

[Hennie VR]

While in CPT, I need to do some exercise to maintain my Vitality Active Rewards. It seems that running (plodding along, I prefer to call it) will be both on & off road.

 

This watch, BTW, is extremely light and I hardly notice it on my arm.

 

Awesome. Thanks Gerald.

 

I have never been someone that can wear stuff on my wrists. I get irritated quickly but I'm sure it's just something that I have to get used to.

 

Another question. If you have the wrist based HRM can you still disable the function and pair the watch with a normal chest strap HRM? 

[Frosty]

Awesome. Thanks Gerald.

 

I have never been someone that can wear stuff on my wrists. I get irritated quickly but I'm sure it's just something that I have to get used to.

 

Another question. If you have the wrist based HRM can you still disable the function and pair the watch with a normal chest strap HRM?

Yes - simple switch between auto/off

[Frosty]

My old strap that i use quiet happily gives me the Cadence, VOS & VO2Max on the 920XT. I would however like to know if by using the old strap on the 735XT it can give you the LTH, and if using no strap at all, can the watch still give you cadence while running.

Having done the 20-min VO2max test to activate the LTH function, it requires a chest strap for both tests. However, it is working with my Powercal strap and there should work with ant Ant+ strap. I had to "cheat" the VO2max test as it needed power and HR hence the PowerCal strap in use.

 

After a warm up, press lap

136-145bpm for 4:00

145-153bpm for 4:00

153-162bpm for 4:00

162-171bpm for 3:00

 

After all this is said Threshold cannot be detected. Maybe it was due to me cycling and not running. Who knows?

 

I'll do the actual run test when I'm doing a run workout in two weeks time in CPT.

 

Photos I took during the workout didn't upload-Tapatalk problem.

[Dewald3]

Hi there

 

Just a quick question regarding the comparison:

 

Im looking to get the Fenix 3, but cant decide which one is better, I will mostly use it for mountain biking and gyming, but have heard that when mountain biking with it the Fenix 3 HR can loose connection with your heart rate when descending.

 

So if you had to choose between the 2 options (Fenix 3 HR vs Fenix 3 with HR strap) which will you choose?

[shaper]

Hi there

 

Just a quick question regarding the comparison:

 

Im looking to get the Fenix 3, but cant decide which one is better, I will mostly use it for mountain biking and gyming, but have heard that when mountain biking with it the Fenix 3 HR can loose connection with your heart rate when descending.

 

So if you had to choose between the 2 options (Fenix 3 HR vs Fenix 3 with HR strap) which will you choose?

Ask your question here https://community.bikehub.co.za/topic/148140-garmin-fenix-3/

[Frosty]

Hi Gerald

 

Please do a comp. for MTBking too.  I believe the wrist based measurement is poor due to the shaking involved.

Here are the results from today's MTB ride, over 64Km (two laps of 27Km, with the Km difference before/after the two laps). The route was south of Carnival City, so not too difficult but still a fair amount of "shaking involved.

 

There were 2x 10-min intervals on the second lap, so it was pretty much full gas over the terrain which had a lot more shaking than the first lap.

 

Wrist HR vs chest strap (linked to Forerunner 310XT).

 

edit: spelling 

[Underachiever]

Here are the results from today's MTB ride, over 64Km (two laps of 27Km, with the difference before/after the two laps). The route was south of Carnival City, so not too difficult but still a fair amount of "shaking involved.

 

There were 2x 10-min intervals on the second lap, so it was pretty much full gas over the terrain which had a lot more shaking.

 

Wrist stap only vs strap linked to Forerunner 310XT.

HR-STRAPvsWRIST_MTB.PNG

Thx Gerald - so the correlation seems good! Which is good news....which is bad news......for my budget!!!!!

[Frosty]

Thx Gerald - so the correlation seems good! Which is good news....which is bad news......for my budget!!!!!

It makes one wonder why some guys are experiencing problems with the Fenix version.

[SwissVan]

Having done the 20-min VO2max test to activate the LTH function, it requires a chest strap for both tests. However, it is working with my Powercal strap and there should work with ant Ant+ strap. I had to "cheat" the VO2max test as it needed power and HR hence the PowerCal strap in use.

 

After a warm up, press lap

136-145bpm for 4:00

145-153bpm for 4:00

153-162bpm for 4:00

162-171bpm for 3:00

 

After all this is said Threshold cannot be detected. Maybe it was due to me cycling and not running. Who knows?

 

I'll do the actual run test when I'm doing a run workout in two weeks time in CPT.

 

Photos I took during the workout didn't upload-Tapatalk problem.

 

I R confused...

Why does a strapless system require a chest strap for the LTH test?

 

[Lou Zealand]

Hopefully this is not a hijack but a mere divergence.

 

I use a Polar CS300. I have the option of taking over a Garmin Forerunner 225 - which apparently (according to several web reviews) does not lend itself to cycling,

 

Nonetheless, the Polar is effectively acting solely as a HRM due to the cadence system being on and off (mostly off) and the sonic link is a pain.

 

If I was to use the Garmin in the same role (i.e. HRM) for cycling will it work?

 

Ta.

[Frosty]

I R confused...

Why does a strapless system require a chest strap for the LTH test?

 

I'll admit it defeats the purpose of going strapless.

Secondly, if the optical route is "not as accurate" then using the strap confirms it.

 

Saturday morning I'll go for a run (with the strap) to see if the LTH test works this time.

[Frosty]

Hopefully this is not a hijack but a mere divergence.

 

I use a Polar CS300. I have the option of taking over a Garmin Forerunner 225 - which apparently (according to several web reviews) does not lend itself to cycling,

 

Nonetheless, the Polar is effectively acting solely as a HRM due to the cadence system being on and off (mostly off) and the sonic link is a pain.

 

If I was to use the Garmin in the same role (i.e. HRM) for cycling will it work?

 

Ta.

It's a GPS based watch, so it will be a step-up (pun intended) from the Polar CS300 - actually more than just a step up.

 

You can still track your rides (speed included), and your HR, as well as the other optical-based HR functions (24/7 HR, sleep analysis, steps and a few other non-essential things).

 

As you have already stated, it's a running watch so can't do cadence and certainly can't pair with a power meter. If speed, GPS tracking, wrist-based HR and those non-essentials are good enough for you then the FR225 is good enough.