Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Light-headed the day after moderate rides. Blood pressure issue?

Notices
Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Light-headed the day after moderate rides. Blood pressure issue?

Old 05-21-14, 09:41 AM
  #1  
b_t
Junior Member
Thread Starter
 
Join Date: Aug 2013
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Light-headed the day after moderate rides. Blood pressure issue?

Before I invest in a trip to a sports doctor or medical analysis, I wanted to solicit some opinions.

I'm nearly 50. I had never been particularly athletic or active but started light weight lifting 3 years ago and cycling last year. My toughest ride last year was a 70 mile +5600 ft recreational event.

I did spinning and cross-training over the winter. Now that spring is here, I'm riding 4 days/week, something like 20/20/40/70 for mileage. Most of my riding is on flat/rolling hills, 70-75% of MHR, occasionally higher on a longer hill. Avg speed varies from 16-18mph, so nothing too strenuous.

I'm now starting to feel lightheaded the day after, but not during rides, sometimes even the 20 milers. I talked to my physician last month at my annual exam, but didn't get too much useful in terms of feedback other than that maybe I'm going to hard. I don't think I am. I can talk comfortably while riding and don't have much soreness the next day.

I had all the usual lab work. Cholesterol, blood count, and everything else was extremely healthy. My BP and resting heart rate have been trending down over the last few years as one would expect. Resting heart rate was 70 and this year is consistently 45-50. BP started at 130/70 and is now 95/49.

My regular diet is solid. I'm drinking 16-20 oz per hour (50/50 gatorade/water), and consuming 500 calories per hour (energy bars/bananas) while riding. Avg temperature is 50-60, so I don't think hydration is the issue, and I've cut out my caffeine. Weight is withiin a pound or two before and after rides (I'm 6'1", 183lbs).

I'm starting to think this could be low blood pressure related. Does anyone here have any experience with this, or is 95/49 within normal range for endurance cyclists?
b_t is offline  
Old 05-21-14, 09:56 AM
  #2  
rpenmanparker 
Senior Member
 
rpenmanparker's Avatar
 
Join Date: Dec 2009
Location: Houston, TX
Posts: 28,682

Bikes: 1990 Romic Reynolds 531 custom build, Merlin Works CR Ti custom build, super light Workswell 066 custom build

Mentioned: 106 Post(s)
Tagged: 1 Thread(s)
Quoted: 6555 Post(s)
Likes: 0
Liked 53 Times in 34 Posts
Yes, it is a specific, transient form of low blood pressure caused by sudden standing up. Most commonly it is what is called "postural hypotension" or "orthostatic hypotension". When you feel lightheaded, just bend over to get more blood to your head until it passes. Not a problem in most cases. Make sure you replenish glycogen, electrolytes and fluids. That will help to prevent the occurrence.
__________________
Robert

Originally Posted by LAJ View Post
No matter where I go, here I am...
rpenmanparker is offline  
Old 05-21-14, 10:04 AM
  #3  
datlas 
Beyond Bogus
 
datlas's Avatar
 
Join Date: Dec 2007
Location: Malvern, PA (20 miles West of Philly)
Posts: 37,967

Bikes: 1986 Alpine (steel road bike), 2009 Ti Habenero, 2013 Specialized Roubaix

Mentioned: 523 Post(s)
Tagged: 2 Thread(s)
Quoted: 17789 Post(s)
Liked 4,947 Times in 2,413 Posts
Have a salty snack and some extra fluids.

Do it now and thank me later.
__________________
Originally Posted by rjones28 View Post
Addiction is all about class.
datlas is online now  
Old 05-21-14, 10:33 AM
  #4  
hamster
Senior Member
 
Join Date: Apr 2006
Location: Escondido, CA
Posts: 2,240
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I just measured my blood pressure and got 105/63 @ 51..55 bpm (sitting in a chair in front of the computer). 95/49 sounds like it may be a bit extreme (and 49 puts you within the clinical definition of hypotension), but it's not uncommon for endurance athletes to have low BP.
hamster is offline  
Old 05-22-14, 01:33 AM
  #5  
JimF22003
Senior Member
 
JimF22003's Avatar
 
Join Date: Apr 2007
Location: Northern VA
Posts: 2,654

Bikes: 2008 Trek Madone 5.5, 2009 Cervelo R3SL tdf edition, Cervelo R5 with Di2

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I've done hundreds of century rides. After particularly hard ones, I get this the next day still. It passes. Wouldn't hurt to see a doctor though.
JimF22003 is offline  
Old 05-22-14, 09:53 AM
  #6  
FLvector
Stand and Deliver
 
FLvector's Avatar
 
Join Date: Jun 2008
Location: Tampa Bay
Posts: 3,340

Bikes: Cannondale R1000, Giant TCR Advanced, Giant TCR Advanced SL

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Does this dizziness occur while sitting and walking around, or only when standing up from a sitting or reclined position? If it occurs when suddenly standing it is fairly common and there's ways to avoid the dizziness. If occurring while sitting or continues while standing for longer length of time I'd discuss this further with your doctor.
FLvector is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rons
Fifty Plus (50+)
31
05-27-20 12:26 PM
bernmart
Fifty Plus (50+)
9
09-12-14 03:31 PM
RVwriter
Fifty Plus (50+)
22
06-07-14 04:38 PM
William I am
Road Cycling
32
09-03-13 09:01 AM
Pfishingruven
Clydesdales/Athenas (200+ lb / 91+ kg)
8
07-08-10 05:10 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.