Volume 7, Issue 4 (Autumn 2021)                   JCCNC 2021, 7(4): 245-254 | Back to browse issues page


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Ahmadi K, Amiri-Farahani L. The Perceived Barriers to Physical Activity in Pregnant Women: A Review Study. JCCNC 2021; 7 (4) :245-254
URL: http://jccnc.iums.ac.ir/article-1-320-en.html
1- Department of Reproductive Health and Midwifery, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran.
2- Department of Reproductive Health and Midwifery, Nursing Care Research Center, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran. , amirifarahani.l@iums.ac.ir
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● Despite all the positive effects of physical activity on maternal and fetal health, its level is low among pregnant women. 
● Various barriers seem to prevent physical activity during pregnancy. 
● Obstacles related to the intrapersonal level were the most reported in the reviewed studies. 
● Symptoms and limitations of pregnancy were the most reported barriers in some studies.
● Concerns about maternal and fetal safety, lack of counseling and information, and lack of social support were prominent barriers to pregnancy that need to be addressed in future studies.

Plain Language Summary 
This review study was conducted to identify the perceived barriers to physical activity in pregnant women among the literature that was published between 2000 and 2020. Obstacles related to the intrapersonal level of the ecological model were the most reported in these studies and were classified into five areas, including pregnancy symptoms and limitations, time constraints, misunderstanding the adequacy of daily activities, lack of motivation, and maternal and fetus safety concerns. Barriers at the interpersonal level included lack of consultation and information and lack of social support, and at the environmental, organizational, and political levels, climate and lack of resources were the most reported barriers.

Full-Text:   (1289 Views)

1. Introduction

Pregnancy is a life-changing event that can amend a person’s physical activity (Borodulin et al. 2016). Despite the known benefits of physical activity, many pregnant women do not have regular activity (Gaston & Vamos 2013). The US Department of Health and Human Services (2008) recommends regular aerobic and power exercises during pregnancy to all pregnant women who are not prohibited from engaging in physical activity. 
According to a study in the US, 31% of pregnant women reported mild physical activity, 38% reported moderate physical activity, and 32% reported intense physical activity (Marshall, Bland, & Melton 2013). The results of a study in Isfahan, Iran, showed that 98.7% of pregnant women had mild physical activity during pregnancy and 1.3% had moderate physical activity (Bahadoran & Mohamadirizi 2015). 
Increasing evidence confirms that physical activity during pregnancy reduces gestational diabetes, preterm delivery, weight gain, and risk of preeclampsia (Gaston & Vamos 2013). It also reduces fat mass and improves pain tolerance, mental health (Davis & Dimidjian 2012), and sleep during pregnancy (Borodulin et al. 2010), and reduces postpartum depression (Summerbell et al. 2009). Exercise during pregnancy increases the possibility of vaginal delivery and especially, exercise during the second and third trimesters reduces the risk of cesarean section. Therefore, it is necessary for pregnant women to gradually increase their level of physical activity during pregnancy (Domenjoz, Kayser & Boulvain 2014).
The results of a study showed that the physical activity of pregnant women decreases in the third trimester (Bahadoran & Mohamadirizi 2015). The highest level of physical activity in pregnant women is related to mild activity and the lowest level is related to intense activity (Antosiak-Cyrak & Demuth 2019; Nascimento et al. 2015; Wojtyla et al. 2012). 
Numerous barriers to physical activity during pregnancy have been reported in various studies. Individual barriers to physical activity include extreme fatigue, lack of time for exercise, and physical limitations, such as joint pain, pelvic pain, edema, back pain, physical discomfort (Cramp & Bray 2009), and fear of harming the unborn. Among the interpersonal barriers are negative reactions of others to exercise (Irehovbude et al. 2018) and lack of awareness about the benefits or fear of harming the unborn in pregnancy (Evenson et al. 2009). Also, among the environmental, organizational, and political barriers, living far away from the exercise venues and the high cost of exercise classes have been mentioned (Irehovbude et al. 2018). 
In some studies, no significant relationship was found between demographic characteristics, such as age, number of children, gestational age, education, and income level, and the level of physical activity (Bahadoran & Mohamadirizi 2015). It has also been reported that the likelihood of exercising during pregnancy is not associated with ethnicity and Body Mass Index (BMI) before pregnancy or early pregnancy, while college education significantly increases the chances of exercising during pregnancy (Nascimento et al. 2015). Being white, having no children, and having a history of exercise before pregnancy have been associated with more physical activity during pregnancy (Gaston & Vamos 2013). In a study, pregnant women with younger age and lower family support obtained higher scores of barriers to physical activity (Da Costa & Ireland 2013).
Before taking any action, the barriers that reduce the physical activity of pregnant women should be determined. The aim of this study was to investigate and determine the barriers to physical activity during pregnancy based on a review of available literature. 

2. Materials and Methods

This review study used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach to select appropriate resources. Accordingly, a search was conducted in reputable Persian language databases, including Iran Database (Magiran), Scientific Information Database of Jahad Daneshgahi (SID), and Iranian Medical Sciences Databases (IranMedex and MedLib), as well as English language databases, including Scopus, PubMed, Elsevier, Ovid, ScienceDirect, Web of Science, and ProQuest using a combination of keywords, including pregnant woman, physical activity, exercise, barriers, pregnancy, constraints, attitudes, and their Persian equivalents in the title or abstract of the studies. The search was limited to human studies regarding barriers to physical activity in pregnant women published between 2000 and 2020 in Persian or English language that access to their full text was provided. Articles with the blurred method and duplicate articles were excluded. From a total of 63 articles, after removing the duplicates, 10 articles that met the inclusion criteria were selected and reviewed (Figure 1). 


Seven quantitative articles and three qualitative articles were included in the study. Among the quantitative articles, one was a randomized clinical trial, three were descriptive studies, and three were prospectively studied. It should be noted that no study was found on pregnant women’s perceived barriers to physical activity in Iran.

3. Results 

The results of this review study showed that the studies had used structured and semi-structured questionnaires, researcher-made questionnaires, and face-to-face interviews to collect data. Table 1 provides detailed information on the seven quantitative studies and three qualitative studies that were included in this review study.





The results showed that pregnant women perceived many barriers to physical activity. In two quantitative studies, lack of family support was associated with greater perceived barriers (Da Costa & Ireland 2013; Irehovbude et al. 2018). Results of two other quantitative studies by Santos et al. (2014) and Irehovbude et al. (2018) showed that lack of time, high workload, aversion to exercise, living far away from exercise venues, fear of harming the unborn, and lack of sports centers were among individual perceived barriers. In the first and second trimesters, 13.3% and 10.2% of the participants had rarely referred to the neighborhood or environmental factors and interpersonal barriers, respectively; thus, the authors of these studies concluded that the perceived barriers were similar in both trimesters (Irehovbude et al. 2018; Santos et al. 2014). In another study, lack of time for exercise and experience of physical limitations accounted for 64% of barriers to physical exercise (Connelly et al. 2015). In a study, 84.4% of the barriers were related to individual factors, 2.2% to interpersonal factors, 3.1% to environmental factors, 0.5% to organizational factors, and 1.3% to political factors, and also, 8.2% of barriers had no reason (Evenson et al. 2009). Another study had classified the barriers to physical activity in 42 items and 7 main categories, including 1) pregnancy symptoms, 2) responsibilities and activities of family and children, 3) lack of personal motivation, 4) time and job requirements, 5) adequacy of daily activities and no need for exercise, 6) fear of injury or harm, and 7) lack of the previous history of physical activity (Marshall, Bland & Melton 2013). In two studies, the environmental, organizational, and political barriers were more prominent (Kieffer et al. 2002; Cioffi et al. 2010). In the study by Leppanen et al., the interpersonal, environmental, organizational, and political barriers had been specifically perceived by pregnant women (Leppänen et al. 2014). The summary of extracted barriers from studies based on the ecological model is listed in Table 2

4. Discussion

The present study summarized the perceived barriers to physical activity among pregnant women in quantitative and qualitative studies in this field. Despite wide differences in study design, sample size, and participant characteristics, there were slight differences between the barriers. Intrapersonal barriers had been mentioned in the studies more than other barriers. Among the barriers, pregnancy-related symptoms, such as fatigue, nausea, physical pain, and bodily changes had been frequently reported as barriers to women’s physical activity during pregnancy. Symptoms, such as nausea, fatigue, and sleep problems were the most important barriers to physical activity in the first trimester of pregnancy, while physical limitations caused by fetus development, such as shortness of breath and back/pelvic pain were often experienced in the last trimester of pregnancy. 
Women consistently had reported “fear of harming the unborn baby” by physical activity, a perception that was evident even among pregnant women who were previously active and continued to lead an active lifestyle during pregnancy (Hegaard et al. 2011). “Time constraints” due to job commitments and lack of motivation had also been frequently mentioned as intrapersonal barriers (Kieffer et al. 2002; Marshall, Bland & Melton 2013). 
Among the barriers classified as intrapersonal barriers, some women had cited the notion of “being active enough in daily activities, “such as housework, especially in pregnant women who had lived in a rural community (Marshall, Bland & Melton 2013). “Lack of prenatal exercise programs” was classified in the category of lack of motivation, which seems to be an important barrier to designing and implementing effective interventions. In a review of literature of the studies conducted on women who had been active before pregnancy, the results showed that although they had reported similar barriers to physical activity, they tended to maintain a pre-pregnancy exercise routine during pregnancy (Santos et al. 2014; Gaston & Vamos 2013). Physical activity before pregnancy is one of the strongest predictors of maintaining physical activity during pregnancy (Hegaard, et al. 2011; Da Costa & Ireland, 2013; Leppänen et al. 2014). 
Among the interpersonal barriers, “lack of counseling and information” and “lack of social support” were among the barriers to physical activity during pregnancy. Regarding the lack of counseling and information, studies had pointed to the lack of knowledge on how to exercise safely during pregnancy, and lack of guidance from health care providers on the benefits of physical activity during pregnancy (Krans et al. 2005). Considering the lack of social support, the attitude of relatives in acknowledging the lack of physical activity during pregnancy was a known obstacle. In this regard, a recent study showed that women’s relatives and friends influence them by telling anxious and negative stories about sports habits during pregnancy (Reichert et al. 2007). 
Environmental, organizational, and political barriers are often described in studies on pregnant women with low-income and ethnic minorities (Marshall, Bland, and Melton, 2013). External factors, such as “unfavorable weather”, “limited access to sports facilities”, “concern about the cost of physical activity” , and “lack of specific physical activity programs for pregnant women” scored lower in some studies (Irehovbude et al., 2018; Leppänen et al., 2014; Cioffi et al., 2010). To increase the number of safe and low-cost physical activity facilities, the investors should be considered by policymakers because they can create an environment that promotes active behavior in pregnant women. Providing group physical activity classes for pregnant women at health centers and prenatal clinics can also be an option to encourage regular physical activity and introduce women to a new social support network. In addition, low-cost activities, such as walking should also be promoted because it does not require special equipment, requires little skill, and does not need to be designed specifically for pregnant women. 

5. Conclusion 

The present study outlined the perceived barriers to physical activity among pregnant women in various contexts and highlighted the important factors that should be considered when planning interventions to increase the level of physical activity during pregnancy. 
Although many barriers to physical activity among pregnant women are similar to those reported in the general population, significant barriers to pregnancy were also identified in this study. Symptoms and limitations of pregnancy, regardless of the study design, have often been mentioned in various texts as barriers to physical activity during pregnancy. On the other hand, concern about the safety of mother and child, lack of counseling, and lack of social support are some barriers to physical activity in pregnancy, which have been reported more among qualitative studies.
Based on the findings of this review study, it is recommended that future researchers focus on the views of health care professionals about physical activity during pregnancy because the current studies lack the information on how physicians overcome possible barriers and how they advise pregnant women to engage in physical activity. In addition, future interventional studies on the barriers to physical activity during pregnancy would affect the level of physical activity during pregnancy. 

Ethical Considerations

Compliance with ethical guidelines

This article is a review article with no human or animal sample.

Funding

This research did not receive any grant from funding agencies in the public, commercial, or non-profit sectors. 

Authors' contributions

Both authors equally contributed to preparing this article. 

Conflict of interest

The authors declared no conflict of interests.

References 

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Type of Study: Applicable | Subject: General
Received: 2021/08/5 | Accepted: 2021/09/14 | Published: 2021/11/1

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