weight & FEV1

sarabeth87

New member
I'm not sure how to ask this question and make it make sense, but as I've mentioned, my FEV1 has gone from being in the 90s to 70% in the past two years. Also in the past two years, I've somehow gained 20 lbs. Is it possible that my FEV1 hasn't really decreased that much, but that when they enter the numbers before I blow in the machine, that my being 20 lbs heavier makes it look like my FEV1 should be higher?
 

sarabeth87

New member
I'm not sure how to ask this question and make it make sense, but as I've mentioned, my FEV1 has gone from being in the 90s to 70% in the past two years. Also in the past two years, I've somehow gained 20 lbs. Is it possible that my FEV1 hasn't really decreased that much, but that when they enter the numbers before I blow in the machine, that my being 20 lbs heavier makes it look like my FEV1 should be higher?
 

sarabeth87

New member
I'm not sure how to ask this question and make it make sense, but as I've mentioned, my FEV1 has gone from being in the 90s to 70% in the past two years. Also in the past two years, I've somehow gained 20 lbs. Is it possible that my FEV1 hasn't really decreased that much, but that when they enter the numbers before I blow in the machine, that my being 20 lbs heavier makes it look like my FEV1 should be higher?
 

sarabeth87

New member
I'm not sure how to ask this question and make it make sense, but as I've mentioned, my FEV1 has gone from being in the 90s to 70% in the past two years. Also in the past two years, I've somehow gained 20 lbs. Is it possible that my FEV1 hasn't really decreased that much, but that when they enter the numbers before I blow in the machine, that my being 20 lbs heavier makes it look like my FEV1 should be higher?
 

sarabeth87

New member
I'm not sure how to ask this question and make it make sense, but as I've mentioned, my FEV1 has gone from being in the 90s to 70% in the past two years. Also in the past two years, I've somehow gained 20 lbs. Is it possible that my FEV1 hasn't really decreased that much, but that when they enter the numbers before I blow in the machine, that my being 20 lbs heavier makes it look like my FEV1 should be higher?
 

LouLou

New member
nope. weight is not figured into the % calculations. only age and height.

it is completely possible though that there is a correlation between your FEV1 dropping with the weight gain. If the weight gain puts you beyond a healthy BMI then it might be a sign you are not in shape. FEV1 can drop when your physical stamina drops. This is why so many people exercise like mad with cf.

Have you been exercising during the time of this weight gain?
Are you eating too much healthy food and need to portion control or are you eating junk?

Two sayings that come to mind...

"Garbage in, garbage out."
"Use it or loss it."

Also, have you done an oral glucose tolerance test lately? This should be done yearly to make sure you don't develop CFRD.
 

LouLou

New member
nope. weight is not figured into the % calculations. only age and height.

it is completely possible though that there is a correlation between your FEV1 dropping with the weight gain. If the weight gain puts you beyond a healthy BMI then it might be a sign you are not in shape. FEV1 can drop when your physical stamina drops. This is why so many people exercise like mad with cf.

Have you been exercising during the time of this weight gain?
Are you eating too much healthy food and need to portion control or are you eating junk?

Two sayings that come to mind...

"Garbage in, garbage out."
"Use it or loss it."

Also, have you done an oral glucose tolerance test lately? This should be done yearly to make sure you don't develop CFRD.
 

LouLou

New member
nope. weight is not figured into the % calculations. only age and height.

it is completely possible though that there is a correlation between your FEV1 dropping with the weight gain. If the weight gain puts you beyond a healthy BMI then it might be a sign you are not in shape. FEV1 can drop when your physical stamina drops. This is why so many people exercise like mad with cf.

Have you been exercising during the time of this weight gain?
Are you eating too much healthy food and need to portion control or are you eating junk?

Two sayings that come to mind...

"Garbage in, garbage out."
"Use it or loss it."

Also, have you done an oral glucose tolerance test lately? This should be done yearly to make sure you don't develop CFRD.
 

LouLou

New member
nope. weight is not figured into the % calculations. only age and height.

it is completely possible though that there is a correlation between your FEV1 dropping with the weight gain. If the weight gain puts you beyond a healthy BMI then it might be a sign you are not in shape. FEV1 can drop when your physical stamina drops. This is why so many people exercise like mad with cf.

Have you been exercising during the time of this weight gain?
Are you eating too much healthy food and need to portion control or are you eating junk?

Two sayings that come to mind...

"Garbage in, garbage out."
"Use it or loss it."

Also, have you done an oral glucose tolerance test lately? This should be done yearly to make sure you don't develop CFRD.
 

LouLou

New member
nope. weight is not figured into the % calculations. only age and height.

it is completely possible though that there is a correlation between your FEV1 dropping with the weight gain. If the weight gain puts you beyond a healthy BMI then it might be a sign you are not in shape. FEV1 can drop when your physical stamina drops. This is why so many people exercise like mad with cf.

Have you been exercising during the time of this weight gain?
Are you eating too much healthy food and need to portion control or are you eating junk?

Two sayings that come to mind...

"Garbage in, garbage out."
"Use it or loss it."

Also, have you done an oral glucose tolerance test lately? This should be done yearly to make sure you don't develop CFRD.
 

jfarel

New member
With people with low bmi, adding pounds normally boosts FEV1. That is what I have heard. If your bmi was average to slightly above average to begin with, then adding 20 lbs may be cause for concern. You should ask your doctor about that.
 

jfarel

New member
With people with low bmi, adding pounds normally boosts FEV1. That is what I have heard. If your bmi was average to slightly above average to begin with, then adding 20 lbs may be cause for concern. You should ask your doctor about that.
 

jfarel

New member
With people with low bmi, adding pounds normally boosts FEV1. That is what I have heard. If your bmi was average to slightly above average to begin with, then adding 20 lbs may be cause for concern. You should ask your doctor about that.
 

jfarel

New member
With people with low bmi, adding pounds normally boosts FEV1. That is what I have heard. If your bmi was average to slightly above average to begin with, then adding 20 lbs may be cause for concern. You should ask your doctor about that.
 

jfarel

New member
With people with low bmi, adding pounds normally boosts FEV1. That is what I have heard. If your bmi was average to slightly above average to begin with, then adding 20 lbs may be cause for concern. You should ask your doctor about that.
 

Dreamer

New member
My weight and FEV1 seem to have an indirect correlation. Whenever one goes up, the other goes down and vice versa. It's very frustrating for the nutritionist because I am always at my best FEV1 when I am slightly underweight and it is lower when I fall into the healthy range. It's a mystery!

I have always attributed some of it to the change in weight because I thought that affected the expected numbers...
 

Dreamer

New member
My weight and FEV1 seem to have an indirect correlation. Whenever one goes up, the other goes down and vice versa. It's very frustrating for the nutritionist because I am always at my best FEV1 when I am slightly underweight and it is lower when I fall into the healthy range. It's a mystery!

I have always attributed some of it to the change in weight because I thought that affected the expected numbers...
 

Dreamer

New member
My weight and FEV1 seem to have an indirect correlation. Whenever one goes up, the other goes down and vice versa. It's very frustrating for the nutritionist because I am always at my best FEV1 when I am slightly underweight and it is lower when I fall into the healthy range. It's a mystery!

I have always attributed some of it to the change in weight because I thought that affected the expected numbers...
 

Dreamer

New member
My weight and FEV1 seem to have an indirect correlation. Whenever one goes up, the other goes down and vice versa. It's very frustrating for the nutritionist because I am always at my best FEV1 when I am slightly underweight and it is lower when I fall into the healthy range. It's a mystery!

I have always attributed some of it to the change in weight because I thought that affected the expected numbers...
 

Dreamer

New member
My weight and FEV1 seem to have an indirect correlation. Whenever one goes up, the other goes down and vice versa. It's very frustrating for the nutritionist because I am always at my best FEV1 when I am slightly underweight and it is lower when I fall into the healthy range. It's a mystery!

I have always attributed some of it to the change in weight because I thought that affected the expected numbers...
 
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