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1998

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What usually happened to your heart rate or breathing when you were cross-country skiing? Did you have a small, moderate, or large increase, or no increase at all in your heart rate or breathing?

SKI_CR_H

(1) Small
(2) Moderate
(3) Large
(4) No Increase
(7) Refused
(9) Don't know

(Go to LOOP)

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1995

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d. (What usually happened to your heart rate or breathing when you [did/went] (activity in 2a)?) Did you usually have a small, moderate, or large increase, or no increase at all in your heart rate or breathing?

(15) Skiing

(b) Cross-country

1[] Small
2[] Moderate
3[] Large
0[] No increase
9[] DK

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1991

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d. (What usually happened to your heart rate or breathing when you (did/went) (activity in 2a)?) Did you have a small, moderate, or large increase or no increase at all in your heart rate or breathing?

(15) Skiing

(b)Cross-country

1[] Small
2[] Moderate
3[] Large
0[] No. inc
9[] DK

Survey Text