The association between musculoskeletal pain during pregnancy and pregnancy outcomes: A systematic review and meta-analyses.

OBJECTIVE: To systematically investigate the association between musculoskeletal pain during pregnancy and birth outcomes including caesarean section, newborn birthweight, newborn birth length, and gestational age at birth. METHODS: Medline, Embase, Web of Science, Cinahl and Scopus were systematically searched to identify eligible studies. Odds ratios, mean differences, and confidence intervals were used to describe results. Risk of Bias was assessed using the Newcastle-Ottawa Scale for observational studies. GRADE (The Grading of Recommendation Assessment, Development, and Evaluation) was used to assess the quality of each outcome. RESULTS: Seven studies were included with a total population of 85,991 participants. There is low- quality evidence that pregnant women with musculoskeletal pain had 1.59 greater odds to experience delivery by caesarean section compared to those without musculoskeletal pain ([OR] 1.59, 95 % confidence interval [CI] 1.09 to 2.31). Both newborn birth weight (Mean Difference [MD] 77.79 g, 95 % [CI] -23.09 to 178.67) and newborn birth length ([MD] 0.55 cm, 95 % [CI] -0.47 to 1.56) were not affected by musculoskeletal pain, with very low-quality and low-quality evidence, respectively. There was moderate evidence that pregnant women with musculoskeletal pain had shorter gestational age (weeks), although the effect was small and possibly not clinically relevant ([MD] -0.41, 95 % [CI] -0.41 to -0.07). CONCLUSION: Pregnant women experiencing musculoskeletal pain are at greater odds of delivering their babies via caesarean than those without musculoskeletal pain, however, musculoskeletal pain during pregnancy does not appear to affect newborn birth weight, length, or gestational age at birth.

Segmental sequencing of the upper body segments in unconstrained maximum overarm throws: An implication for coaching.

Overarm throwing is an essential fundamental movement skill (FMS). Competency in throwing is critical to encourage physical activity throughout lifespan. However, the segmental sequencing characteristics of skilled throwing to achieve maximum ball release speed are unclear. Further, the standard instructions for segmental sequencing in coaching manuals are anecdotal and not based on scientific evidence. Therefore, the aim of this study was to establish the critical features of upper-body sequencing in skilled throwing for maximum speed. This would enable revised instructions for coaching throwing based on scientific evidence. The three-dimensional kinematics of 144 right-handed unconstrained maximum overarm throws were captured and analyzed. The quartiles of participants with the fastest and lowest ball release speed, normalized by height, were defined as the Skilled Group and Less Skilled Group, respectively. Paired t-tests were used to determine the differences in times of successive events within groups and independent t-tests for between-group differences in temporal space between events for all sequences. A characteristic segmental sequence of each group was defined as a sequence with significant within-group differences in two successive events (p < 0.001), while a critical segmental sequence was defined as a sequence with significant differences in temporal space both within groups and between groups (p < 0.001). The Skilled Group had six characteristic sequences, while two were found for the Less Skilled Group, summarized in the conceptual model. A single critical sequence of non-throwing arm elbow extension prior to shoulder extension was found. Five evidence-based instructions were recommended to add to the Australian FMS instruction manual.

Effectiveness of customised safety intervention programmes to increase the safety culture of hospital staff.

The aim of this study was to investigate the effectiveness of customised safety interventions in improving the safety cultures of both clinical and non-clinical hospital staff. This was assessed using the Safety Attitude Questionnaire-Chinese at baseline, 2 years and 4 years after the implementation of safety interventions with a high response rate ranging from 80.5% to 87.2% and excellent internal consistency (Cronbach's alpha=0.93). The baseline survey revealed a relatively low positive attitude response in the Safety Climate (SC) domain. Both SC and Working Conditions (WC) domains were shown to have increased positive attitude responses in the second survey, while only the Management Perception domain had gained 3.8% in the last survey. In addition, safety dimensions related to collaboration with doctors and service delays due to communication breakdown were significantly improved after customised intervention was applied. Safety dimensions related to safety training, reporting and safety awareness had a high positive response in the initial survey; however, the effect was difficult to sustain subsequently. Multilevel analysis further illustrated that non-clinical staff were shown to have a more positive attitude than clinical staff, while female staff had a higher positive attitude percentage in job satisfaction than male staff. The results showed some improvements in various safety domains and dimensions, but also revealed inconsistent changes in subsequent surveys. The change in positive safety culture over the years and its sustainability need to be further explored. It is suggested that hospital management should continuously monitor and evaluate their strategies while delivering multifaceted interventions to be more specifically focused and to motivate staff to be enthusiastic in sustaining patient safety culture.