Background: The “Double Reduction” policy changed the education market landscape overnight in China. This study aimed to develop a strategic development model for the sports education market within the context of the “Double Reduction” policy. Methods: This study employed a hybrid model of SWOT (strengths, weaknesses, opportunities, and threats) and AHP (analytic hierarchy process). First, SWOT factors were identified by a literature review and survey. In 2022, 30 managers and 251 parents from Changsha and Tianjin were surveyed regarding the sports education market. Second, five decision-makers from the Changsha sports education market performed a pairwise comparison of the AHP analysis, which was used to determine weights, consistency ratios, and intensities of SWOT factors. Third, the strategic vector method was used to develop the strategic development model. Results: Sixteen SWOT factors were determined. The strategic quadrilateral’s center of gravity is positioned in quadrant II (−0.0595, 0.0246). The strategic azimuth is 157.5°, and the strategic coefficient is 0.49. The strategic vector is located at the striving zone of the adjustment type. Conclusions: A conservative business strategy should be implemented in the current sports education market. Four novel strategies were proposed to support the high-quality development of the Chinese sports education market.

Background: In China, sleep disorders have become a public health concern. This study aimed to model the relationship between adverse events and sleep quality, as well as the effect of group step aerobics on sleep quality. Methods: The modeling was built on surveying 2760 16–19-year-old adolescents. The Pittsburgh Sleep Quality Index (PSQI) was used to evaluate sleep quality, and the Adolescent Self-rating Life Events Checklist (ASLEC) was used to evaluate adverse events. Adolescents with sleep disorders (PSQI ≥ 8) were randomized into the control (n = 26) and exercise (n = 26) groups. The exercise group participated in 12-week step aerobics, and the 300 min weekly volume is compliant with the WHO physical activity guidelines. Results: The double Poisson distribution was chosen to fit the data. ASLEC had a nonlinear relationship with the PSQI. Participants in the exercise group slept better (p < 0.05) from the eighth week until the end of the study. A random adolescent, therefore, has a 92.5% probability of experiencing improved sleep quality after 12 weeks of step aerobics. Conclusions: Intervention should be implemented before adverse events accumulate. An active lifestyle should be a preparedness strategy for increasing the resilience of adolescent mental health in the face of adversity.