Inter-day reliability of the Upper Body Test for shoulder and pelvic girdle stability in adults.

BACKGROUND: There are a limited number of tests for the assessment of shoulder and pelvic girdle stability. Reliable instruments are important to evaluate movement dysfunction at these joints in order to provide more objective parameters. OBJECTIVE: To evaluate the inter-day reliability of the Upper Body Test in young adults. METHODS: A reliability study was carried out with three assessments of the shoulder and pelvic girdle stability within 48-h intervals (Monday, Wednesday, and Friday). The OctoBalance® platform was used to perform the Upper Body Test in 31 active young adults (24.5±8 years). Intraclass Correlation Coefficient (ICC2,2) two-way mixed model, Coefficient of Variation, and Bland-Altman plots were used to verify the reliability of the test. The standard error of measurement (SEM) and the minimum detectable difference (MDD95%) were calculated for clinical applicability. RESULTS: The Intraclass Correlation Coefficient ranged from 0.87 to 0.94 - Featuring a mean difference of 0.89 (95%CI=-0.19-1.97) to left and 0.95 (95%CI=-0.38-2.27) for the right side, with a low variation coefficient (3.31-5.91%) between the second and third days of assessment. There was a statistically significant difference between the first assessment day and the other test sessions. The Bland-Altman analyses revealed low bias with scores within the limits of agreement. Minimum detectable difference scores were between 4.02 and 5.10, and standard error of measurement between 1.75 and 2.72, depending on the movement side. CONCLUSION: The Upper Body Test presented good inter-day reliability for assessing the stability of the shoulder and pelvic girdle in young active healthy adults.

Factors associated with pain in the pelvic girdle in pregnant adolescents: A case-control study.

BACKGROUND: Due to biological immaturity and unfavorable psychosocial conditions, it is conjectured that teenage pregnancy may be associated with disorders such as pelvic girdle pain. The evidence for risk factors for pelvic girdle pain in pregnant adolescents remains unclear. OBJECTIVES: To evaluate the factors associated with pelvic girdle pain related to pregnancy in adolescents. DESIGN: Case-control study. METHOD: Seventy three pregnant women with presence of pelvic girdle pain (case group) and 331 pregnant women without pelvic girdle pain (control group) aged between 10 and 19 years, with gestational age between 28 and 40 weeks were included. RESULTS/FINDINGS: A logistic regression model was used to identify factors associated with the occurrence of pelvic girdle pain. The following aspects were considered for the model: sociodemographic, anthropometric, gynecological and obstetrical, related to lifestyle, musculoskeletal and psychosocial factors. The results showed that suspected common mental disorder (OR: 2.27; 95% CI: 1.23 to 4.18), low back pain during menstruation (OR: 2.10; 95% CI: 1.16 to 3.80) and strenuous work (OR: 1.95; 95% CI: 1.13 to 3.35) were associated with pelvic girdle pain among pregnant adolescents. CONCLUSIONS: Attention must be given to pregnant adolescents with suspected common mental disorder, low back pain during menstruation and strenuous work in order to ensure referral to the appropriate healthcare professional for early prevention of pelvic girdle pain.