OBJECTIVES: The aim of this study was to investigate physiological and psychological aspects of mother-infant signaling during breastfeeding experimentally, testing the effects of a relaxation intervention on maternal psychological state, breast milk intake, milk cortisol levels, and infant behavior and growth.
METHODS: Primiparous breastfeeding mothers and full-term infants were randomly assigned to receive relaxation therapy [intervention relaxation group; n = 33 (RG)] or to the control group [n = 31 (CG); no relaxation therapy] at 2 wk postpartum. Both groups received standard breastfeeding support. Home visits were conducted at 2 (HV1), 6 (HV2), 12 (HV3) and 14 (HV4) wk to measure maternal stress and anxiety, breast milk intake and milk cortisol, and infant behavior and growth.
RESULTS: RG mothers had lower stress scores postintervention than the CG (HV3 ∆ = -3.13; 95% CI: -5.9, -0.3) and lower hindmilk cortisol at HV1 (∆ = -44.5%; 95% CI: -76.1%, -12.9%) but not at HV2. RG infants had longer sleep duration (∆ = 82 min/d; 95% CI: 16, 149 min/d) at HV2 and higher gains in weight and body mass index standardized deviation score than the CG infants (∆ = 0.76; 95% CI: 0.3, 1.22; and ∆ = 0.59; 95% CI: 0.09, 1.1, respectively). RG infants had a mean milk intake at HV3 that was 227 g/d higher than that of the CG infants (P = 0.031) after controlling for gender and milk intake at HV1.
CONCLUSIONS: The trial shows the effectiveness of a simple relaxation intervention for improving maternal and infant outcomes and identifies some potential signaling mechanisms for investigation in future and larger studies, especially in settings where mothers are more stressed, such as those with preterm or low birth weight infants. This trial was registered at clinicaltrials.gov as NCT01971216.
METHODS: This was a cross-sectional study of 385 caregivers of older people who attended a community clinic in Malaysia. Convenience sampling was employed during the study period on caregivers who were aged ≥ 21 years and provided ≥ 4 hours of unpaid support per week. Participants were asked to complete a self-administered questionnaire, which included the Carers of Older People in Europe (COPE) index and the EASYCare Standard 2010 independence score. The COPE index was used to assess the impact of caregiving. A highly burdened caregiver was defined as one whose scores for all three COPE subscales were positive for burden. Care recipients' independence was assessed using the independence score of the EASYCare Standard 2010 questionnaire. Multiple logistic regression was used to determine the factors associated with caregiver burden.
RESULTS: 73 (19.0%) caregivers were burdened, of whom two were highly burdened. Caregivers' median scores on the positive value, negative impact and quality of support scales were 13.0, 9.0 and 12.0, respectively. Care recipients' median independence score was 18.0. Ethnicity and education levels were found to be associated with caregiver burden.
CONCLUSION: Most caregivers gained satisfaction and felt supported in caregiving. Ethnicity and education level were associated with a caregiver being burdened.