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Pregnancy walking cadence does not vary by trimester
Mallory R Marshall1, Alexander H K Montoye2, Ashley J George1
1Samford University, 800 Lakeshore Dr., Birmingham, AL, 35229, United States.
Gait & Posture
|December 19, 2018
Summary
Pregnant women take many steps daily but at a low cadence, with no changes between trimesters. Step and moderate-to-vigorous physical activity (MVPA) recommendations should not be used interchangeably during pregnancy.
Area of Science:
- Obstetrics and Gynecology
- Physical Activity and Exercise Science
- Biomedical Engineering
Background:
- Previous research noted pregnancy-related changes in walking speed and gait dynamics.
- Free-living step cadences and their changes throughout pregnancy remain understudied.
Purpose of the Study:
- To describe free-living stepping cadence in pregnant women.
- To examine differences in stepping cadence between second and third trimester pregnant women.
- To test the hypothesis that walking cadences decrease later in pregnancy.
Main Methods:
- Fifty pregnant women (45 in analytic sample) wore wrist accelerometers for 7-8 days.
- Accelerometer data determined min-by-min walking cadence (steps/min).
- Calculated daily steps, mean/peak cadence, and time spent in moderate-to-vigorous physical activity (MVPA).
Main Results:
- Average daily steps were 11,060.1 ± 2,955.3.
- No significant differences in cadence were observed between the second and third trimesters.
- While many met daily step goals, 0% met MVPA recommendations.
Conclusions:
- Pregnant women achieve high daily step counts but at low cadences.
- Daily steps and cadence did not differ between the second and third trimesters.
- Step and MVPA recommendations are not interchangeable during pregnancy.
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