Introduction: It has been recommended that physical activity be a part of treatment and management regimens of type 2 diabetes mellitus (T2DM), and research has shown that regular physical exercise facilitates glycemic control in these patients. In this analysis, our aim was to systematically show the therapeutic effects of mild to moderate intensity aerobic exercise on glycemic control in patients with T2DM. Methods: From February to April 2021, we searched the https://www.clinicaltrials.gov, EMBASE, MEDLINE, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science and Google Scholar databases for trials that showed the effects of aerobic exercise on glycemic control in patients with T2DM. Glycated hemoglobin (HbA1c) was the endpoint in the analysis. The RevMan version 5.4 statistical program was used for statistical analysis, and the mean difference (MD) and 95% confidence intervals (CI) used to represent the data following analysis. Results: Eighteen trials involving 972 participants with T2DM were included in this metaanalysis, of whom 523 were assigned to an exercise group and 449 were assigned to a control group. A comparison pre-versus post-aerobic exercise showed that aerobic exercise significantly improved glycemic control (HbA1c) (MD 0.35, 95% CI 0.23-0.48;

The teaching quality evaluation of physical education is an important measure to promote the professional development of physical teachers, improve the quality of school teaching and personnel training. It is helpful for students to achieve all-round development and better meet the needs of modern talents in the new era. This study aims to establish a novel MCDM (multi-criteria decision-making) framework for evaluating teaching quality of physical education. First, PFNs (picture fuzzy numbers) are suggested to reflect dissimilar attitudes or preferences of decision makers. Then, the typical SWARA (Step-wise Weight Assessment Ratio Analysis) model is modified with PFNs to calculate the weights of evaluation criteria. Considering that some criteria are non-compensatory during the evaluation process, the idea of ELECTRE (elimination and choice translating reality) is introduced to obtain the ranking results of alternatives. Specially, the MAIRCA (Multi-Attribute Ideal-Real Comparative Analysis) method is extended to construct the difference matrix in a picture fuzzy environment. Last, the hybrid MCDM model is utilized to assess the teaching quality of physical education. Its superiority is justified through comparison analyses. Results show that our approach is practicable and can provide instructions for the teaching quality evaluation of physical education.