PMID- 10470452
OWN - NLM
STAT- MEDLINE
DCOM- 19991019
LR  - 20191103
IS  - 1066-7814 (Print)
IS  - 1066-7814 (Linking)
VI  - 24
IP  - 4
DP  - 1999 Aug
TI  - Fetal responses to maternal strength conditioning exercises in late gestation.
PG  - 362-76
AB  - Cardiovascular responses to strength conditioning exercises were examined in 12 
      healthy pregnant women and their unborn fetuses during the third trimester. A 
      group of 12 healthy nonpregnant women of similar ages, parity, body height, and 
      pre-pregnant body mass was also studied. Maternal heart rate and blood pressure 
      and fetal heart rate (FHR) responses were measured in both the supine (30 degrees 
      tilt) and seated postures during handgrip (HG), single-leg extension (SL), and 
      double-leg extension (DL) exercise. Subjects performed 3 sets of 10 reps at 50, 
      70, and 90% of their 10-repetition maximum (10-RM) for each exercise in both 
      postures. Pregnant subjects exhibited higher heart rates but similar blood 
      pressure responses to control subjects under all experimental conditions. 
      Significant increases were observed for the frequency of FHR accelerations (0.10 
      to 0.27/min) from rest to DL in the sitting posture at 90% RM. Moderate fetal 
      bradycardia was observed occasionally in the tilted supine posture at rest and 
      both during (SL, DL) and following (HG, SL, DL) exercise, suggesting that this 
      posture should be avoided in late gestation. The results support the safety of 
      moderate strength conditioning exercises in healthy pregnancy.
FAU - Avery, N D
AU  - Avery ND
AD  - Dept. of Physiology, Queen's University, Kingston, Ontario.
FAU - Stocking, K D
AU  - Stocking KD
FAU - Tranmer, J E
AU  - Tranmer JE
FAU - Davies, G A
AU  - Davies GA
FAU - Wolfe, L A
AU  - Wolfe LA
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Can J Appl Physiol
JT  - Canadian journal of applied physiology = Revue canadienne de physiologie 
      appliquee
JID - 9306274
SB  - IM
MH  - Adult
MH  - Analysis of Variance
MH  - Blood Pressure/physiology
MH  - Exercise/*physiology
MH  - Exercise Test
MH  - Female
MH  - Heart Rate/physiology
MH  - Heart Rate, Fetal/*physiology
MH  - Humans
MH  - Physical Endurance/physiology
MH  - Posture
MH  - Pregnancy/*physiology
MH  - Pregnancy Outcome
MH  - Pregnancy Trimester, Third
EDAT- 1999/09/02 00:00
MHDA- 1999/09/02 00:01
CRDT- 1999/09/02 00:00
PHST- 1999/09/02 00:00 [pubmed]
PHST- 1999/09/02 00:01 [medline]
PHST- 1999/09/02 00:00 [entrez]
AID - 10.1139/h99-028 [doi]
PST - ppublish
SO  - Can J Appl Physiol. 1999 Aug;24(4):362-76. doi: 10.1139/h99-028.