Open AccessRelease of β‐Endorphin in Response to Physical Exercise in Non‐Pregnant and Pregnant Women
Author(s) -
Rauramo Ilkka,
Salminen Katariina,
Laatikainen Timo
Publication year - 1986
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016348609158397
Subject(s) - medicine , pregnancy , bicycle ergometer , physical exercise , gestation , test (biology) , endocrinology , obstetrics , heart rate , blood pressure , paleontology , genetics , biology
The effect of physical exercise on β‐endorphin (β‐E) concentration in plasma was studied in 8 non‐pregnant and in 8 pregnant women in their last trimester of pregnancy, using a 10‐min bicycle ergometer test. in the nonpregnant women the mean β‐E levels were 2.4±0.7 (S.E.) pmol/l before the test, 4.3±0.9 pmol/l at the end of the test, and 4.3±0.6 and 5.0±2.0 pmol/l 15 and 30 min after the test, respectively, declining thereafter. in the pregnant women the mean β‐E values were 5.1±2.0 pmol/l before the test, 7.3±1.7 pmol/l at the end of the test, 6.7±2.0 pmol/l 15 min after the test, and 12.6±4.1 pmol/l 60 min after the test, declining thereafter. Thus β‐E secretion increased in response to exercise both in non‐pregnant and in pregnant women, the response lasting longer in pregnant women.