Garmin

3 lurkers | 208 watchers
oumaumau
oumaumau
Nov 2019
4:47pm, 9 Nov 2019
1,271 posts
  •  
  • 0
oumaumau
I find I sweat through to the battery compartment Gus, I've tried fresh batteries. Maybe next time I'll go for a HRM-Tri, they're waterproof I think
puzzler
puzzler
Nov 2019
4:53pm, 9 Nov 2019
984 posts
  •  
  • 0
puzzler
Pegg, I don’t want to reopen an old debate, but why do you feel the need for a chest strap rather than relying on the wrist based HR? I’ve switched between both in the past as the wrist based have evolved. To me the recent versions (645 for me) work fine.
chunkywizard
chunkywizard
Nov 2019
5:42pm, 9 Nov 2019
6,802 posts
  •  
  • 0
chunkywizard
The straps on HRM perish after a while, 10-15 is outstanding. There are 2 types of new one. Either with the module integrated (HRM-Run/Tri/Swim), or not (HRM-Dual). The swappable modules like on the dual are considered more budget and less accurate, but you can change the strap if they become unreliable. They are also cheaper. That said, I find optical on the new Garmins, like 245, 645 and 945 as good as a strap these days and so don’t wear a strap. YMMV, optical doesn’t work for everyone, but it works for me when I tighten the wrist strap one notch past how I normally wear it
um
um
Nov 2019
6:42pm, 9 Nov 2019
1,355 posts
  •  
  • 0
um
I have an old, but unused 610 strap if wanted ... no idea if they are compatible with other models
flanker
flanker
Nov 2019
7:10pm, 9 Nov 2019
18,730 posts
  •  
  • 0
flanker
puzzler, while optical might work for you it doesn't for everyone. I get far more reliable data from the the strap. Plus the strap also gives you all the extra run dynamics data you can't get from the optical. And finally, in winter optical can be a pain as it means your watch can need to be under several layers!
chunkywizard
chunkywizard
Nov 2019
7:23pm, 9 Nov 2019
6,813 posts
  •  
  • 0
chunkywizard
You can get the extra dynamics data from the RD Pod when using optical. You are right about the cold, optical struggles sometimes, but then again, you need to really wet your strap in the winter to avoid spurious data at the beginning of a run.
Pegg
Pegg
Nov 2019
8:08pm, 9 Nov 2019
260 posts
  •  
  • 0
Pegg
I use the chest strap HRM because I was told it was more accurate than the one on the watch itself?

It's a treadmill at home so it won't be picking up from other people. It is an old treadmill though (I've had it for 18 years - it felt like an expensive luxury at £400 but it's saved me a lot more in gym memberships!) so maybe it's interfering with the HRM??
Pegg
Pegg
Nov 2019
8:09pm, 9 Nov 2019
261 posts
  •  
  • 0
Pegg
When you mention 'extra dynamics' chunkywizard, what are you including in that?
puzzler
puzzler
Nov 2019
8:26pm, 9 Nov 2019
985 posts
  •  
  • 0
puzzler
Flanker, I agree that some people don’t get on with optical. I was just thinking that in the situation Pegg describes where optical is giving roughly sensible numbers and the chest strap is all over the place, my reaction would be to stick with optical rather than get a new chest strap.

Pegg, it depends what level of precision you need. I know that I don’t know my maximum HR with any degree of certainty so I just use HR for ball park zones.
chunkywizard
chunkywizard
Nov 2019
8:31pm, 9 Nov 2019
6,817 posts
  •  
  • 0
chunkywizard
From Garmin:

The Running Dynamics Pod has an accelerometer in the module that measures torso movement to calculate these 6 running metrics:

Cadence is the number of steps per minute. It displays the total steps (right and left combined).
Ground contact time balance displays the left/right balance of your ground contact time while running. It displays a percentage. For example, 53.2 with an arrow pointing left or right.
Stride length is the length of your stride from 1 footfall to the next. It is measured in meters.
Vertical oscillation is your bounce while running. It displays the vertical motion of your torso, measured in centimeters for each step.
Vertical ratio is the ratio of vertical oscillation to stride length. It displays a percentage. A lower number typically indicates better running form.
Ground contact time is the amount of time in each step that you spend on the ground while running. It is measured in milliseconds.

About This Thread

Maintained by fetcheveryone
For all questions and comments about Garmin devices, including importing to Fetch.

Related Threads

  • garmin
  • gps
  • tech









Back To Top
X

Free training & racing tools for runners, cyclists, swimmers & walkers.

Fetcheveryone lets you analyse your training, find races, plot routes, chat in our forum, get advice, play games - and more! Nothing is behind a paywall, and it'll stay that way thanks to our awesome community!
Get Started
Click here to join 112,241 Fetchies!
Already a Fetchie? Sign in here