OBJECTIVE: Describe safety and efficacy of a supervised, low-to-moderate intensity strength training program adopted during pregnancy among women at increased risk for back pain. METHODS: 32 women adopted strength training twice per week for 12 weeks. Data on musculoskeletal injuries, symptoms, blood pressure, and the absolute external load used for 5 of 6 exercises were obtained during each session. A submaximal lumbar extension endurance exercise test was performed at weeks 5, 10, and 13. RESULTS: The mean (± SD) exercise session attendance rate was 80.5% (± 11.3%). No musculoskeletal injuries occurred. Potentially adverse symptoms (eg, dizziness) were infrequent (2.1% of sessions). Repeated-measures ANOVA showed large increases in the external load across 12 weeks (all P values < .001) and the percentage increases in external load from weeks 1 to 12 were 36% for leg press, 39% for leg curl, 39% for lat pull down, 41% for lumbar extension and 56% for leg extension. Training was associated with a 14% increase in lumbar endurance. Blood pressure was unchanged following acute exercise sessions and after 12 weeks of exercise training. CONCLUSION: The adoption of a supervised, low-to-moderate intensity strength training program during pregnancy can be safe and efficacious for pregnant women.
OBJECTIVE: Describe safety and efficacy of a supervised, low-to-moderate intensity strength training program adopted during pregnancy among women at increased risk for back pain. METHODS: 32 women adopted strength training twice per week for 12 weeks. Data on musculoskeletal injuries, symptoms, blood pressure, and the absolute external load used for 5 of 6 exercises were obtained during each session. A submaximal lumbar extension endurance exercise test was performed at weeks 5, 10, and 13. RESULTS: The mean (± SD) exercise session attendance rate was 80.5% (± 11.3%). No musculoskeletal injuries occurred. Potentially adverse symptoms (eg, dizziness) were infrequent (2.1% of sessions). Repeated-measures ANOVA showed large increases in the external load across 12 weeks (all P values < .001) and the percentage increases in external load from weeks 1 to 12 were 36% for leg press, 39% for leg curl, 39% for lat pull down, 41% for lumbar extension and 56% for leg extension. Training was associated with a 14% increase in lumbar endurance. Blood pressure was unchanged following acute exercise sessions and after 12 weeks of exercise training. CONCLUSION: The adoption of a supervised, low-to-moderate intensity strength training program during pregnancy can be safe and efficacious for pregnant women.
Authors: J R MacDonald; J D MacDougall; S A Interisano; K M Smith; N McCartney; J S Moroz; E V Younglai; M A Tarnopolsky Journal: Eur J Appl Physiol Occup Physiol Date: 1999-01
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Authors: Virginia A Aparicio; Olga Ocón; Carmen Padilla-Vinuesa; Alberto Soriano-Maldonado; Lidia Romero-Gallardo; Milkana Borges-Cósic; Irene Coll-Risco; Pilar Ruiz-Cabello; Pedro Acosta-Manzano; Fernando Estévez-López; Inmaculada C Álvarez-Gallardo; Manuel Delgado-Fernández; Jonatan R Ruiz; Mireille N Van Poppel; Julio J Ochoa-Herrera Journal: BMC Pregnancy Childbirth Date: 2016-09-29 Impact factor: 3.007