The purpose of this research is to study two different approaches to exercise during pregnancy that investigators believe will result in improved health for moms and babies. The investigators are trying to determine if the two types of exercise programs (supervised \& home exercise) result in health improvements for moms and babies. The investigators also want to see if the tests and questionnaires used in the study can detect changes in a mom's aerobic fitness, quality of life (QOL), fatigue, sleep quality, depression, and weight change throughout pregnancy and 6-months after birth.
Historically, pregnant women were advised to refrain from exercise due to concerns of maternal and fetal risk such as preterm delivery, low infant birth rate and fetal stress. Despite current research that has demonstrated substantial benefits for maternal, fetal, and infant health, only 9-15% of pregnant women meet the current physical activity recommendations. In addition, pregnancy exercise research is confounded by a lack of randomized controlled trials (RCT) that include diversity in participant demographics, specifically inner city populations, and difficulty accurately quantifying weekly exercise volume. The investigators propose a pilot RCT investigating two different approaches to exercise intervention across a spectrum of demographics that the investigators believe will result in improved exercise adherence as well as in maternal and infant health outcomes. Specific Aim #1: To determine the feasibility of two types of exercise interventions (supervised \& home exercise) in terms of design, implementation and adherence. Our working hypothesis is that both supervised and home exercise interventions will be implementable as designed in pregnant women as evidenced by recruitment, eligibility, retention, follow-up and exercise adherence from 1st trimester through 6-months post-natal at a 60% rate, but that adherence to the two types of exercise interventions will differ by demographic. A secondary exploratory hypothesis is that the investigators will be able to successfully recruit and retain 50% of our pregnant women from the Syracuse Community Health Center (primarily women with lower resources). Specific Aim #2: To determine the appropriateness of the outcome measures proposed for the exercise intervention in detecting changes in maternal aerobic fitness, quality of life (QOL), fatigue, sleep quality, depression, and weight change throughout pregnancy and 6-months post-natal as measured by the Balke Ware submaximal test; SF-12 Generic Quality of Life (QOL); Multidimensional Fatigue Inventory (MFI); Pittsburgh Sleep Quality Index (PSQLI); Center for Epidemiologic Studies Depression Scale (CES-D); Edinburgh Postnatal Depression Scale (EPDS); and the Pregnancy Physical Activity Questionnaire (PPAQ). Our working hypothesis is that the above outcome measures will be able to detect changes in maternal outcome measures in both exercise groups. Because this is a feasibility study, the results will be used as preliminary data to apply for future funding and also will provide variable quantitative and qualitative data for validating interventions that can increase adherence to exercise guidelines during pregnancy in women with different ethnic and socioeconomic backgrounds.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
18
Women randomized to Supervised Exercise group will attend two to three exercise classes/week. Each session will consist of: 5-min flexibility warm-up and cool-down; 40 min of moderate intensity calculated as 40-59% Heart Rate Reserve (HRR) along with Rating of Perceived Exertion (RPE) between 13-14; and 20 minutes of resistance with an additional 30 minutes of unsupervised home aerobic activity per week. The women will be given their choice of aerobic equipment or walking either track/ treadmill to achieve a total of 40 minutes of moderate intensity exercise. The Supervised Exercise group will receive exercise counseling during their first meeting in addition to materials on the benefits of exercise, a log to record additional activity completed each week, goal setting, making time for exercise/making exercise a habit and exercise behavioral strategies.
Women assigned to Home Exercise group will receive instructions for their home walking program including tips for walking indoors and outdoors, exercise handouts for warm-up/cool-down activities, demonstrations for resistance training activities and an exercise log. Women assigned to Home Exercise group will be contacted once per week to discuss their progress, barriers/challenges faced, ask questions, and strategies to achieve the exercise guidelines. The Home Exercise group will receive exercise counseling during their first meeting in addition to materials on the benefits of exercise, a log to record additional activity completed each week, goal setting, making time for exercise/making exercise a habit and exercise behavioral strategies.
SUNY Upstate Medical University
Syracuse, New York, United States
The Bayley Scales of Infant Development, 4th edition
The Bayley-4 is a standardized, norm-referenced tool with subtest level scaled scores, domain level composite scores, percentile ranks, and developmental age equivalents. The investigators will utilize the cognitive and motor sections only for this study. The purpose of this outcome measure is to compare developmental trajectories over the first six months of life between the three groups (supervised exercise group, home exercise group, and control group). The highest possible score on a subtest or subdomain is 19, and the lowest possible score is 1. Scores from 8-12 are considered average.
Time frame: Month 1 of infant's life
The Bayley Scales of Infant Development, 4th edition
The Bayley-4 is a standardized, norm-referenced tool with subtest level scaled scores, domain level composite scores, percentile ranks, and developmental age equivalents. The investigators will utilize the cognitive and motor sections only for this study. The purpose of this outcome measure is to compare developmental trajectories over the first six months of life between the three groups (supervised exercise group, home exercise group, and control group). The highest possible score on a subtest or subdomain is 19, and the lowest possible score is 1. Scores from 8-12 are considered average.
Time frame: Month 2 of infant's life
The Bayley Scales of Infant Development, 4th edition
The Bayley-4 is a standardized, norm-referenced tool with subtest level scaled scores, domain level composite scores, percentile ranks, and developmental age equivalents. The investigators will utilize the cognitive and motor sections only for this study. The purpose of this outcome measure is to compare developmental trajectories over the first six months of life between the three groups (supervised exercise group, home exercise group, and control group). The highest possible score on a subtest or subdomain is 19, and the lowest possible score is 1. Scores from 8-12 are considered average.
Time frame: Month 3 of infant's life
The Bayley Scales of Infant Development, 4th edition
The Bayley-4 is a standardized, norm-referenced tool with subtest level scaled scores, domain level composite scores, percentile ranks, and developmental age equivalents. The investigators will utilize the cognitive and motor sections only for this study. The purpose of this outcome measure is to compare developmental trajectories over the first six months of life between the three groups (supervised exercise group, home exercise group, and control group). The highest possible score on a subtest or subdomain is 19, and the lowest possible score is 1. Scores from 8-12 are considered average.
Time frame: Month 4 of infant's life
The Bayley Scales of Infant Development, 4th edition
The Bayley-4 is a standardized, norm-referenced tool with subtest level scaled scores, domain level composite scores, percentile ranks, and developmental age equivalents. The investigators will utilize the cognitive and motor sections only for this study. The purpose of this outcome measure is to compare developmental trajectories over the first six months of life between the three groups (supervised exercise group, home exercise group, and control group). The highest possible score on a subtest or subdomain is 19, and the lowest possible score is 1. Scores from 8-12 are considered average.
Time frame: Month 5 of infant's life
The Bayley Scales of Infant Development, 4th edition
The Bayley-4 is a standardized, norm-referenced tool with subtest level scaled scores, domain level composite scores, percentile ranks, and developmental age equivalents. The investigators will utilize the cognitive and motor sections only for this study. The purpose of this outcome measure is to compare developmental trajectories over the first six months of life between the three groups (supervised exercise group, home exercise group, and control group). The highest possible score on a subtest or subdomain is 19, and the lowest possible score is 1. Scores from 8-12 are considered average.
Time frame: Month 6 of infant's life
Balke-Ware Submaximal Test
Used to estimate cardiovascular condition and endurance by measuring maximum oxygen uptake, known as VO2max. Comparison of the participant's heart rate and blood pressure response to exercise between measurements will assess the effect of the intervention on the participant's aerobic capacity. A reduction in heart rate or blood pressure may be consistent with improved aerobic conditioning.
Time frame: Baseline (late first trimester)
Balke-Ware Submaximal Test
Used to estimate cardiovascular condition and endurance by measuring maximum oxygen uptake, known as VO2max. Comparison of the participant's heart rate and blood pressure response to exercise between measurements will assess the effect of the intervention on the participant's aerobic capacity. A reduction in heart rate or blood pressure may be consistent with improved aerobic conditioning.
Time frame: 3 months post-delivery
Balke-Ware Submaximal Test
Used to estimate cardiovascular condition and endurance by measuring maximum oxygen uptake, known as VO2max. Comparison of the participant's heart rate and blood pressure response to exercise between measurements will assess the effect of the intervention on the participant's aerobic capacity. A reduction in heart rate or blood pressure may be consistent with improved aerobic conditioning.
Time frame: 6 months post-delivery
Short From-12 Generic Quality of Life
A self-reported outcome measure assessing the impact of health on an individual's everyday life. It is often used as a quality of life measure. Two summary scores are reported from the SF-12 - a mental component score (MCS-12) and a physical component score (PCS-12). The United States population average PCS-12 and MCS-12 are both 50 points.
Time frame: Baseline (late first trimester), late second trimester (25-26 weeks), late third trimester (37-38 weeks), and monthly through 6-months post-natal
Multidimensional Fatigue Inventory
A 20-item scale designed to evaluate five dimensions of fatigue: general fatigue, physical fatigue, reduced motivation, reduced activity, and mental fatigue. Higher total scores correspond with more acute levels of fatigue.
Time frame: Baseline (late first trimester), late second trimester (25-26 weeks), late third trimester (37-38 weeks), and monthly through 6-months post-natal
Pittsburgh Sleep Quality Index
A self-rated questionnaire which assesses sleep quality and disturbances over a 1-month time interval. Possible range of scores is 0 to 21, with higher scores indicating worse sleep quality.
Time frame: Baseline (late first trimester), late second trimester (25-26 weeks), late third trimester (37-38 weeks), and monthly through 6-months post-natal
Center for Epidemiologic Studies Depression Scale
A 20-item measure that asks caregivers to rate how often over the past week they experienced symptoms associated with depression, such as restless sleep, poor appetite, and feeling lonely. Possible range of scores is 0 to 60, with the higher scores indicating the presence of more symptomatology.
Time frame: Baseline (late first trimester), late second trimester (25-26 weeks), late third trimester (37-38 weeks), and monthly through 6-months post-natal
Edinburgh Postnatal Depression Scale
Evaluates whether a woman has symptoms of depression and anxiety during pregnancy and in the year following the birth of a child. Possible range of scores is 0 to 30. Mothers scoring above 12 are likely to be suffering from depression.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Time frame: Baseline (late first trimester), late second trimester (25-26 weeks), late third trimester (37-38 weeks), and monthly through 6-months post-natal
Pregnancy Physical Activity Questionnaire
Self-administered semiquantitative questionnaire for assessing typical physical activity, occupational activity, and home activity completed. From the questionnaire, the number of hours spent in each activity is multiplied by the activity intensity to arrive at a measure of average daily energy expenditure (MET-hours per day) attributable to each activity.
Time frame: Baseline (late first trimester), late second trimester (25-26 weeks), late third trimester (37-38 weeks), and monthly through 6-months post-natal
Height
Infant height in centimeters
Time frame: Month 1, Month 2, Month 3, Month 4, Month 5, Month 6 of infant's life
Weight
Infant weight in kilograms
Time frame: Month 1, Month 2, Month 3, Month 4, Month 5, Month 6 of infant's life