• PNF and Movement
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• 제17권1호
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• pp.157-166
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• 2019

Purpose: This study compares and examines the effects of proprioceptive neuromuscular facilitation (PNF) on patients with chronic low back pain through systematic literature review and meta-analysis. Methods: Domestic literature was searched with combinations of keywords including "proprioceptive neuromuscular facilitation," "PNF," "back pain," and "low back pain" using the Research Information Sharing Service (RISS), Korean Studies Information Service System (KISS), and Korean Medical Database (KMbase). Six studies (n=148) were finally included in the analysis through a selection and exclusion process. The quality of the studies was evaluated using the PEDro scale. Results: According to the meta-analysis results, the low back pains of the PNF group and the contrast group showed a standardized mean difference (SMD) of 2.21 (95% CI: -3.35, -1.07, p=0.01, $I^2=83%$) after intervention. Thus, the PNF group showed a statistically significant decrease in low back pain compared with the control group. In addition, the SMDs of the Oswestry Disability Index (ODI), lung function, and the Roland and Morris Disability Questionnaire (RMDQ) were -1.34 (95% CI: -1.88, -0.79, p<0.01, $I^2=35%$), 1.14 (95% CI: 0.49, 1.79, p=0.01, $I^2=0%$), and -1.59 (95% CI: -2.56, -0.62, p=0.01, $I^2=46%$), respectively. Thus, the PNF group showed statistically significant differences from the control group. Conclusion: At present, there is some limit to obtaining definite results about effect sizes because there are relatively few randomized controlled experiments that analyze the effects of PNF exercise in patients with chronic low back pain. Therefore, continuous efforts should be made to conduct randomized clinical trials and long-term efficacy studies in the future.

• 운동영양학회지
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• 제25권1호
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• pp.7-15
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• 2021

[Purpose] Sodium bicarbonate shows ergogenic potential in physical exercise and sports activities, although there is no strong evidence which performance markers show the greatest benefit from this supplement. This study evaluated the effects of sodium bicarbonate supplementation on time trial performance and time to exhaustion in athletes and sports practitioners. [Methods] A systematic review was conducted using three databases, including 17 clinical trials. Among these clinical trials, 11 were considered eligible for the meta-analysis according to the criteria for the assessment of methodological quality using the PEDro Scale. Time to exhaustion was assessed in six studies, while time trial performance was evaluated in five studies. [Results] A significant beneficial effect of supplementation on time to exhaustion was found in a random effects model (1.48; 95% confidence interval [CI], 0.49 to 2.48). There was no significant effect of supplementation on time trial performance in a fixed effects model (slope = -0.75; 95% CI, -2.04 to 0.55) relative to a placebo group. [Conclusion] Sodium bicarbonate has the potential to improve sports performance in general, especially in terms of time to exhaustion.

• Safety and Health at Work
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• 제13권4호
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• pp.415-420
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• 2022

Background: Healthcare workers perform an emotionally exhausting daily work activity, making them prone to occupational hazards, namely psychosocial ones. This study aims to assess the impact of psychosocial risk factors on healthcare workers' mental health. Methods: A cross-sectional study was developed between May and June of 2021 with 479 healthcare workers from Portuguese hospitals. The Depression, Anxiety and Stress Scale was used to assess mental health, and psychosocial risks were assessed through the Health and Work Survey - INSAT. Statistical analysis was performed to identify the psychosocial risk factors related to anxiety, depression, and stress. Subsequently, a multiple linear regression was performed to identify the models that better explained psychosocial risk factors' relationship with anxiety, depression, and stress. Results: Data showed a strong exposure to psychosocial risks. Work pace and intensity, work relationships, and emotional demands stood out with higher global average percentages for yes answers to "exposure and discomfort." The analysis of the b values and p-values from the multiple linear regression shows that some cross-sectional psychosocial risks are predictors of anxiety and stress dimensions, and other psychosocial risks differ in the two mental health dimensions. However, it is important to highlight that healthcare workers still showed great joy and pleasure in performing their work activities. Conclusion: Support network development in the work environment is needed to prevent healthcare workers' emotional stress and promote their psychological well-being. Therefore, new research is essential to understand the psychosocial risks that affect healthcare workers and assess the less visible effects of work-health relationships.

• 한국컴퓨터정보학회논문지
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• 제27권7호
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• pp.145-152
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• 2022

뇌졸중은 균형 장애와 보행능력에도 직접적인 영향을 미친다. 본 연구는 고유수용성신경근촉진법이 뇌졸중 환자의 균형 및 보행에 미치는 영향 연구를 목적으로 한다. 따라서 뇌졸중 환자에게 고유수용성 신경근촉진법을 적용하여 균형과 보행 능력을 평가하는 모든 무작위 배정 연구를 포함하였다. 본 연구는 메타분석에서 있어서 꼭 필요한 프리즈마 가이드 라인을 준수하였다. Cochrane library, CINAHL, Pubmed에서 2021년 11월까지 발행된 연구를 포함하였고, 그 연구들은 고유수용성신경근촉진법을 적용한 무작위 배정 연구들이다. 데이터베이스에서 검색된 1091개의 논문 중 18개의 연구를 메타분석을 시행하였고, 메타분석은 R 프로젝트 4.0.2를 사용하여 시행하였다. 본 연구의 전체 효과 크기는 0.56으로 중간 정도로, 균형과 보행에 관한 척도에 대한 효과 크기도 중간정도 산출되었다. 무작위 배정 정도를 나타내는 페드로 점수는 18점 만점에서 6.63으로 비뚤림 위험이 낮은 것으로 나타났다. 이러한 결과는 PNF가 뇌졸중 환자의 균형 및 보행을 향상시키는 효과적인 중재 방법임을 알 수 있다.