. Author manuscript; available in PMC: 2012 Mar 1.

Published in final edited form as: Depress Anxiety. 2010 Dec 13;28(3):234–242. doi: 10.1002/da.20777

Table 1. Joint SOGC/CSEP Recommendation.

Maternal Age (yr)	Modified Heart Rate Target Zone
Maternal Age (yr)	beats/min	beats/10sec
<20	140-155	23-26

20-29	135-150	22-25

30-39	130-145	21-24

≥ 40	125-140	20-23

SOGC Society of Obstetrics and Gynecologists of Canada; CSEP Canadian Society of Exercise Physiology