Exercise Question

sue kelso said:

I am now in my 2nd week of induction (again :-)) and this week I am
finding that my heart rate is jumping high very quickly to 138-145
while working no harder than I normally do. The only thing that has
changed is my diet. Is this normal?

Muscles are one of the tissues that can use either glucose or FFAs for
fuel, so maybe your heart runs better on FFAs. You also may be using
more oxygen on FFAs, which would cause a higher HR. Keep track of it
and see if it's consistent though, might be something unrelated.

As for normalcy, after weightlifting my HR is usually way higher than
my "target" HR for cardio, so I never bother setting the machines to
the target. I can easily get my HR high enough that the machines
complain (190+). That's with a resting HR in the 60s. I've long
since stopped worrying about what's normal, and just worry about
what's usual for me.

thanks

"DJ Delorie" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

sue kelso said:

I am now in my 2nd week of induction (again :-)) and this week I am
finding that my heart rate is jumping high very quickly to 138-145
while working no harder than I normally do. The only thing that has
changed is my diet. Is this normal?

Muscles are one of the tissues that can use either glucose or FFAs for
fuel, so maybe your heart runs better on FFAs. You also may be using
more oxygen on FFAs, which would cause a higher HR. Keep track of it
and see if it's consistent though, might be something unrelated.

As for normalcy, after weightlifting my HR is usually way higher than
my "target" HR for cardio, so I never bother setting the machines to
the target. I can easily get my HR high enough that the machines
complain (190+). That's with a resting HR in the 60s. I've long
since stopped worrying about what's normal, and just worry about
what's usual for me.

I have found my heart rate is above target after weight lifting as well. Do
you think having such a high heart rate(190) has any danger? I really don't
know where any of these ideal numbers come from...Are there reasons for them
or is going over as dangerous as limiting carbs? :}
"DJ Delorie" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

sue kelso said:

I am now in my 2nd week of induction (again :-)) and this week I am
finding that my heart rate is jumping high very quickly to 138-145
while working no harder than I normally do. The only thing that has
changed is my diet. Is this normal?

Muscles are one of the tissues that can use either glucose or FFAs for
fuel, so maybe your heart runs better on FFAs. You also may be using
more oxygen on FFAs, which would cause a higher HR. Keep track of it
and see if it's consistent though, might be something unrelated.

As for normalcy, after weightlifting my HR is usually way higher than
my "target" HR for cardio, so I never bother setting the machines to
the target. I can easily get my HR high enough that the machines
complain (190+). That's with a resting HR in the 60s. I've long
since stopped worrying about what's normal, and just worry about
what's usual for me.

harper said:

I have found my heart rate is above target after weight lifting as
well. Do you think having such a high heart rate(190) has any
danger?

It depends. I've always been that way, since I was a teen, so I know
it's OK for me. I've got a strong heart, there are times when it will
beat so forcefully you can watch my chest move. I suspect if it
happened to my mother I'd call 911.

Heck, in college I took "swimming for fitness". After the first few
laps, the coach had us check our HRs. Mine was 190. She made me get
out of the pool, and moved me to "swimming for beginners" instead.

OTOH, recently I've been having drug therapy at the hospital, and they
monitor my HR and BP while I sit in a chair for two hours. At the end
of the session it's been as low as 60 HR and 95/53 BP.

BTW, my post-weights HR is usually around 150, the 190 is for high
intensity cardio. The machines want to target me at around 143.
The messages go "starting... target reached... slow down".

Quoted message said:

I really don't know where any of these ideal numbers come from...

Ideal people, of course. I'm not one of them.

Quoted message said:

Are there reasons for them or is going over as dangerous as limiting
carbs? :}

I suspect they're guidelines. There are ways of measuring your own HR
- the two key numbers are the max HR (measure with care) and the
lactic acid threshold (HR at the point where lactic acid starts
accumulating, I think - it's part of the transition from fat burning
to carb burning).

Obligatory warning: see a doctor before starting any exercise program,
or if unexpected things happen to you. Don't rely on Usenet for
medical advice!

Thax for the advice. The big problem I am having is recently I started using
the elliptical thingy after my weight training. I cant go slow enough to
keep it below the 150 the machine suggests...After my chest workout day my
heart rate is 160ish, not sure why its higher then when I do squats which I
would think should use more energy...It seems kind of pointless to do a 20
min exercise on the bike, what I was doing, as it doesn't burn nearly as
much as the elliptical. hmm maybe it will get better with time. and weight
lose.
"DJ Delorie" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

harper said:

I have found my heart rate is above target after weight lifting as
well. Do you think having such a high heart rate(190) has any
danger?

It depends. I've always been that way, since I was a teen, so I know
it's OK for me. I've got a strong heart, there are times when it will
beat so forcefully you can watch my chest move. I suspect if it
happened to my mother I'd call 911.

Heck, in college I took "swimming for fitness". After the first few
laps, the coach had us check our HRs. Mine was 190. She made me get
out of the pool, and moved me to "swimming for beginners" instead.

OTOH, recently I've been having drug therapy at the hospital, and they
monitor my HR and BP while I sit in a chair for two hours. At the end
of the session it's been as low as 60 HR and 95/53 BP.

BTW, my post-weights HR is usually around 150, the 190 is for high
intensity cardio. The machines want to target me at around 143.
The messages go "starting... target reached... slow down".

Quoted message said:

I really don't know where any of these ideal numbers come from...

Ideal people, of course. I'm not one of them.

Quoted message said:

Are there reasons for them or is going over as dangerous as limiting
carbs? :}

I suspect they're guidelines. There are ways of measuring your own HR
- the two key numbers are the max HR (measure with care) and the
lactic acid threshold (HR at the point where lactic acid starts
accumulating, I think - it's part of the transition from fat burning
to carb burning).

Obligatory warning: see a doctor before starting any exercise program,
or if unexpected things happen to you. Don't rely on Usenet for
medical advice!

sue kelso said:

I am now in my 2nd week of induction (again :-)) and this
week I am finding that my heart rate is jumping high very quickly to 138-145
while working no harder than I normally do. The only thing that has changed
is my diet. Is this normal? It falls back down as quickly as it used to, I
know that is good.

Any comments?

Dehydration can elevate your heart rate... your HR will increase
aprox 7 beats for every 1% drop in bodyweight dehydration (for
someone who's 150 and they're 1.5 lbs down due to dehydration
they'll have a higher heartrate).

Other causes, working out at a different time of day and/or
working out in a warmer environment, and of course medications
(i.e. asthma).

--
Rudy - Remove the Z from my address to respond.

"It is better to die on your feet than to live on your knees!"
-Emiliano Zapata

Check out the a.s.d.l-c FAQ at:
http://www.grossweb.com/asdlc/faq.htm

"RRzVRR" <[email hidden]> wrote in

Quoted message said:

Dehydration can elevate your heart rate... your HR will increase
aprox 7 beats for every 1% drop in bodyweight dehydration (for
someone who's 150 and they're 1.5 lbs down due to dehydration
they'll have a higher heartrate).

Other causes, working out at a different time of day and/or
working out in a warmer environment, and of course medications
(i.e. asthma).

Interesting, I didn't know that about dehydration.

For the op: Another factor is that when you are still in induction and your
body is getting used to LC, you may experience somewhat lower blood glucose
levels than your body is used to. Low blood glucose often triggers release
of norephinephrine, which can raise the heart rate. Exercising when your
body is not efficiently replenishing blood glucose might be particularly
likely to create that scenario. The good news is that after a few weeks as
you acclimate on LC, blood sugar levels stabilize and your body gets better
at stabilizing bg levels even during exercise.

HG

sue kelso said:

I am now in my 2nd week of induction (again :-)) and this week
I am finding that my heart rate is jumping high very quickly
to 138-145 while working no harder than I normally do.

This is exactly why you're supposed to take it easy during
Induction and then build the intensity up again later.

Quoted message said:

Is this normal?

Yup. Doesn't happen to everyone but it does happen to many.

Quoted message said:

Any comments?

Ease back on the intensity. Then start building it back up again
next week when you're on OWL at 25 grams.