Partner and Relationship Predictors of Longitudinal Physical Activity Trajectories Among Individuals with Osteoarthritis Using Latent Class Growth Analysis.

BACKGROUND: Physical activity reduces osteoarthritis symptoms, yet many individuals with the disease are insufficiently active. PURPOSE: We identified physical activity trajectories over 12 months of individuals with osteoarthritis and examined how their cohabiting spouses'/partners' baseline physical activity and relationship factors affected trajectory membership. METHODS: In this longitudinal observational study, we collected data from 168 adults with knee/hip osteoarthritis. We used latent class growth curve analysis to identify physical activity trajectories and logistic regression to predict trajectory membership using partners' physical activity, relationship satisfaction, and communal coping (belief that both partners are responsible for osteoarthritis management). Measures, including objectively assessed physical activity, were collected at baseline from the couple, who then received an educational class on physical activity and social support. Objectively assessed physical activity was also collected from individuals with osteoarthritis at 1 week, 3 months, 6 months, and 12 months post-baseline. RESULTS: Three trajectories were identified: stable active, increaser, and stable sedentary (24%, 40%, 37% of participants, respectively). Individuals with osteoarthritis with partners who were more active and who believed they alone were responsible for their osteoarthritis were more likely to follow the stable active (versus stable sedentary) trajectory. Those with partners who were less active and had higher relationship satisfaction were more likely to follow the increaser (vs. stable active) trajectory. CONCLUSIONS: Findings demonstrate the importance of considering partner and relationship factors in physical activity interventions for couples.

The Role of Cohabitating Partner and Relationship Characteristics on Physical Activity among Individuals with Osteoarthritis.

BACKGROUND: Most individuals with knee or hip osteoarthritis do not meet recommendations for physical activity. The Social Cognitive Theory suggests that the social environment (e.g., spouses/partners) may influence the physical activity of individuals with osteoarthritis. The purpose of this study was to examine whether the physical activity of insufficiently active, coupled adults with osteoarthritis was associated with received partner support for physical activity, partner's engagement in physical activity, and relationship satisfaction. METHODS: Cross-sectional data from 169 couples were collected. Accelerometers estimated moderate-to-vigorous physical activity and daily steps for participants with osteoarthritis and their partners. Participants with osteoarthritis reported total received partner support for physical activity and relationship satisfaction. RESULTS: Participants with osteoarthritis were on average 65 years old, 65% female, 86% non-Hispanic white, and 47% retired. Receiving total partner support more frequently was associated with more minutes of moderate-to-vigorous physical activity but not with steps. Relationship satisfaction moderated the association of partner's physical activity on the daily steps of individuals with osteoarthritis such that having a partner who accomplished more daily steps was associated with participants with osteoarthritis accomplishing more daily steps themselves when they reported greater relationship satisfaction. CONCLUSIONS: Partners and relationship satisfaction may play an important role in the physical activity of individuals with osteoarthritis. Interventions seeking to increase physical activity in this population may be enhanced by promoting partner support. Additional research is needed to further explain these associations within the context of relationship satisfaction.

Qualitative Exploration of Dyadic Influence on Physical Activity Between Latina Patients With Osteoarthritis and a Supporter of Their Physical Activity.

OBJECTIVE: Research indicates that social support may promote physical activity; however, most Latina individuals with osteoarthritis (OA) are not sufficiently active. The purpose of this qualitative dyadic study was to explore how Latina patients with OA and a self-selected physical activity "supporter" motivate each other to be more active. Furthermore, perceptions of how OA symptoms impact support and physical activity were examined. METHODS: Semistructured dyadic interviews were conducted with Latina patients with OA and a member of their social network age ≥16 years who supports their physical activity (n = 14 dyads). We used framework analysis to reduce qualitative data to themes and subthemes. RESULTS: Daughters (n = 5), spouses (n = 4), sons (n = 2), a granddaughter (n = 1), a nephew (n = 1), and a friend (n = 1) provided support for the target behavior. In many cases, members of dyads said the motivation to engage in physical activity was reciprocated rather than focused solely on Latina patients with OA. Support was often reciprocated by engaging in physical activity together, using pressure, talking about being active, modeling physical activity, and helping with household responsibilities. Although participants agreed that physical activity was beneficial and Latina patients desired additional support when experiencing OA symptoms, there was concern about the safety of activity in the presence of symptoms. Several adult daughters indicated that their mothers' OA symptoms motivated their own physical activity. CONCLUSION: Dyadic strategies for promoting physical activity among Latina patients with OA and how support may be reciprocated were identified.

Family environment, children's acculturation and mothers' dietary intake and behaviors among Latinas: An autoregressive cross-lagged study.

BACKGROUND: Many Latinos in the U.S. do not meet dietary recommendations for healthy eating. Family systems theory posits that the family environment affects family members' dietary behaviors. Moreover, research suggests that children's acculturation is associated with Latina mothers' dietary intake and behaviors. PURPOSE: This longitudinal study examined the effect of the family environment on Latina mothers' dietary intake and behaviors. Further, we examined whether these effects differed between mothers of assimilated versus bicultural children. METHODS: Secondary data were collected at three time points (baseline, and four and 10 months' post-baseline) from 162 culturally traditional and bicultural Latina mothers residing in Imperial County, California, U.S. Participants were enrolled in the delayed treatment group of a randomized controlled trial. Mothers' daily fruit, vegetable, and sugary beverages intake, percent of calories from fat, weekly away-from-home eating, and percent of weekly grocery dollars spent on fruits and vegetables were examined. The family environment was measured by family expressiveness and family interactions around food. Separate autoregressive cross-lagged models examined the effects of the family environment on dietary outcomes, adjusting for sociodemographic variables. Interactions between the family environment and children's acculturation were also tested. RESULTS: Less positive family interactions around food at baseline predicted more frequent away-from-home eating four months later among mothers of assimilated children. More family expressiveness at four months predicted more grocery dollars spent on fruits and vegetables at ten months among mothers of bicultural children. CONCLUSIONS: Findings suggest the importance of a positive family environment on socially-bound dietary behaviors (e.g., away-from-home eating) exhibited by the mother. Family interventions aimed at improving dietary intake and associated behaviors should promote a positive family environment around food and consider the moderating role of children's acculturation.

Leisure-Time Physical Activity and Characteristics of Social Network Support for Exercise Among Latinas.

PURPOSE: To examine the association between characteristics of social support for exercise and moderate-to-vigorous leisure-time physical activity (LTPA) among Latinas. DESIGN: This cross-sectional study used baseline data from a cluster randomized controlled trial. SETTING: The study was conducted in 16 churches located in San Diego County. PARTICIPANTS: Participants (N = 436) were Latinas between 18 and 65 years old who did not self-report >150 minutes or did not exceed 250 minutes of moderate-to-vigorous PA per week measured by accelerometer. MEASURES: Latinas listed up to 6 individuals who had provided support for exercise within the past 6 months, including their gender, relationship with the respondent, types of support provided, and respondent's satisfaction with support. Self-reported LTPA was dichotomized (none vs any). ANALYSES: We generated dyads between Latinas who named ≥1 supporter (n = 323) and each supporter they named (n = 569 dyads). Logistic regression analyses were conducted using generalized estimating equations to adjust for multiple observations per participant. RESULTS: Having an exercise partner (odds ratio [OR]: 2.16; 95% confidence interval [CI]: 1.01-4.62), help with household duties (OR: 2.70; 95% CI: 1.35-3.38), being "very much" satisfied with support (OR: 2.33; 95% CI: 1.26-4.30), and naming >2 supporters (OR: 2.57; 95% CI: 1.06-6.25) was positively associated with LTPA. CONCLUSIONS: Findings suggest specific aspects of support for exercise that should be targeted in future interventions to promote LTPA.

Lessons Learned From a Feasibility Study Delivered in 2 WIC Sites to Promote Physical Activity Among Pregnant Latinas.

OBJECTIVE: To assess the feasibility, including demand for and acceptability of a physical activity (PA) intervention among pregnant Latinas recruited at the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). METHODS: Women <20 weeks gestation and self-reporting <150 minutes of PA/wk were recruited from 2 WIC locations in Southern California. The 9-wk, promotora-led intervention included 1-hour sessions and 2 walking groups/wk. RESULTS: WIC was supportive of recruitment, intervention, and evaluation activities. Of an estimated pool of 525 women at <20 wks gestation, 141 expressed interest, 108 were screened for eligibility, and 21 were enrolled. Of the 21 who enrolled, 12 completed the postintervention assessment (7 in the participant group and 5 in the nonparticipant group). CONCLUSIONS AND IMPLICATIONS: Demand and acceptability will need to be improved before this intervention can be considered feasible, potentially by extending eligibility and improving access to intervention.

Effects of Latino children on their mothers' dietary intake and dietary behaviors: The role of children's acculturation and the mother-child acculturation gap.

RATIONALE: Research shows that acculturation is important to Latinas' dietary intake and related behaviors. Although evidence suggests children may also play a role, it remains unclear whether children's acculturation is related to mothers' dietary intake/behaviors. OBJECTIVES: We examined the relationship between Latino children's acculturation and mothers' dietary intake/behaviors. We also examined the mother-child acculturation gap to identify dyad characteristics associated with mothers' diet. METHODS: Baseline surveys were collected in 2010 from 314 Latino mother-child (7-13 years old) dyads of Mexican-origin enrolled in a family-based dietary intervention in Southern California, USA. Mother's daily intake of fruits, vegetables, and sugary beverages, percent of calories from fat, weekly away-from-home eating, and percent of weekly grocery dollars spent on fruits and vegetables were assessed via self-report. Mothers' and children's bidimensional acculturation were examined using acculturation groups (e.g., assimilated, bicultural) derived from Hispanic and non-Hispanic dimensions of language. We also assessed the acculturation gap between mothers and children with the a) difference in acculturation between mothers' and children's continuous acculturation scores and b) mother-child acculturation gap typologies (e.g., traditional mothers of assimilated children). RESULTS: Findings show that having an assimilated versus a bicultural child was negatively associated with mothers' vegetable intake and positively associated with mothers' sugary beverage intake, percent of calories from fat, and frequency of away-from-home eating, regardless of mothers' acculturation. Traditional mothers of assimilated children reported more sugary beverage intake, calories from fat, and more frequent away-from-home eating than traditional mothers of bicultural children. CONCLUSION: Results suggest that children's acculturation is associated with their mothers' dietary intake/behaviors and traditional mothers of assimilated children require more attention in future research.