Depression in climacteric women—defined as females transitioning from perimenopause to postmenopause—impares quality of life and burdens families and healthcare systems. Exercise, a proven non-pharmacological intervention for menopausal depression, has been understudied for "optimal dosage across exercise types." Previous research either focused on activity-depression associations or ignored dosage when selecting exercise types. This systematic review and network meta-analysis addresses this gap by comparing optimal doses of four exercises (aerobic, multi-mode, stretching, and mind-body) to establish an evidence-based "exercise type-dose" hierarchy for clinical practice. New Study Unveils Optimal Exercise Prescriptions for Menopausal Depression A groundbreaking systematic review and network meta-analysis has pinpointed specific exercise dosages that are most effective in alleviating depressive symptoms experienced by women during the climacteric period. The comprehensive study, published in Frontiers in Psychology, offers crucial evidence-based guidance for clinicians, healthcare providers, and individuals seeking non-pharmacological approaches to manage mood disorders associated with menopause. The research, which synthesized data from 23 randomized controlled trials (RCTs) involving over 2,100 women, aimed to move beyond general recommendations for exercise and provide precise, dose-dependent insights for four distinct exercise modalities: aerobic, multi-mode, stretching, and mind-body exercises. Depression during the menopausal transition, a period marked by fluctuating and declining estrogen levels, significantly affects women’s well-being and places a considerable strain on families and healthcare resources. While exercise has been recognized as a beneficial intervention, the optimal "dose"—encompassing frequency, intensity, and duration—has remained largely undefined across different exercise types. Key Findings: Tailoring Exercise for Maximum Impact The study’s central finding is that while all four exercise types demonstrate a positive impact on depressive symptoms, their effectiveness is significantly influenced by the prescribed dosage. The analysis revealed distinct dose-response relationships for each category: Aerobic Exercise: This form of exercise, including activities like brisk walking, cycling, and jogging, showed optimal efficacy within a weekly dose range of 600 to 1,100 MET-minutes (Metabolic Equivalent of Task minutes). Beyond 1,100 MET-minutes per week, the benefits appeared to plateau, suggesting diminishing returns and a potential for overexertion. The research indicates that approximately three 40-minute sessions per week of moderate-intensity aerobic activity (around 6 METs) would fall within this beneficial range. Multi-Mode Motion: This approach, which combines different exercise types such as aerobic, strength, and flexibility training, demonstrated peak effectiveness at a higher weekly dose of 1,000 to 1,500 MET-minutes. This integrated approach may offer synergistic benefits by addressing multiple physiological and psychological aspects of menopausal well-being. However, the study cautioned that exceeding this dosage could potentially lead to increased physical strain, negating the positive effects. A prescription of three 50-minute sessions per week, incorporating both aerobic and strength components, could achieve this optimal dose. Stretching Exercise: Unlike other modalities, stretching exercises exhibited a "U-shaped" dose-response curve. The most favorable outcomes were observed at a weekly dose of 900 to 1,200 MET-minutes. Doses below this range were insufficient to yield significant benefits, while doses exceeding 1,200 MET-minutes per week showed a decline in efficacy, though researchers noted a scarcity of data at very high doses, suggesting this decline might be a mathematical artifact rather than a definitive negative impact. For individuals experiencing musculoskeletal pain or stiffness, this modality is particularly recommended, with sessions of 40-50 minutes, three times a week, falling within the optimal window. Mind-Body Exercise: Practices such as yoga, Pilates, and Qigong showed a monotonic increase in efficacy with dosage, meaning benefits appeared to continue rising as the exercise dose increased. However, the study highlighted a significant limitation: a lack of robust data for doses exceeding 1,500 MET-minutes per week. This makes it difficult to establish a definitive upper limit for optimal effectiveness, although the findings suggest that these exercises may offer broad tolerance and sustained benefits. Mind-body exercises are particularly noted for their role in anxiety reduction and psychological regulation, potentially complementing other exercise forms. The Science Behind the Recommendations The study’s methodology involved a rigorous systematic search of major academic databases, followed by data extraction and quality assessment of eligible randomized controlled trials. The researchers then employed Bayesian network meta-regression (MBNMA) to model the complex dose-response relationships between various exercise types and their impact on depression scores. This advanced statistical technique allowed for the comparison of multiple interventions simultaneously and the estimation of optimal dosage ranges. Dr. Dong Li, a lead author of the study, emphasized the significance of these findings: "For years, we’ve known exercise is beneficial for menopausal depression, but the ‘how much’ and ‘what kind’ has been vague. Our analysis provides a much-needed roadmap, allowing clinicians to prescribe exercise with a level of precision previously unavailable. This move towards individualized, dose-specific recommendations is crucial for maximizing patient outcomes." The researchers also noted that the typical intervention duration observed in the reviewed studies was around 12 weeks, which aligns well with achieving sufficient cumulative exercise dose for therapeutic effect without compromising long-term adherence. Similarly, a frequency of three exercise sessions per week emerged as a consistent factor across effective interventions. Contextualizing Menopausal Depression and Exercise The menopausal transition is a significant biological and psychological phase for women, often accompanied by a cascade of symptoms including hot flashes, sleep disturbances, and mood changes. Depression during this period is not merely a passing mood but a distinct clinical challenge, influenced by hormonal shifts, neuroendocrine dysregulation, and psychosocial stressors. Previous pharmacological treatments have shown variable efficacy and potential side effects, making non-pharmacological interventions like exercise increasingly vital. The study highlights the physiological underpinnings of these exercise recommendations. Aerobic exercise is known to stimulate the release of endorphins and neurotransmitters that positively affect mood. Multi-mode exercise offers a broader physiological engagement, potentially addressing physical discomforts that can exacerbate depression, such as muscle loss or joint pain, which are common during menopause. Stretching and mind-body exercises focus on reducing physical tension and promoting psychological relaxation, directly counteracting stress and anxiety. Implications for Public Health and Clinical Practice The findings have significant implications for public health initiatives and clinical decision-making. For Clinicians: Healthcare providers can now offer more targeted advice, prescribing specific exercise types and weekly MET-minute targets based on a patient’s physical condition, preferences, and the severity of their depressive symptoms. For instance, women with joint pain might be steered towards stretching or low-impact aerobic exercises, while those seeking a holistic approach might benefit from multi-mode or mind-body routines. For Community Programs: Public health organizations and fitness centers can design group exercise programs that align with these optimal dosage recommendations. This could involve offering structured classes in aerobic or multi-mode exercises with clear guidelines on session length and frequency to ensure participants achieve the beneficial dose ranges. For Individuals: Women experiencing menopausal depression can use this information to make informed choices about their physical activity. The research empowers them to engage in exercise that is not only enjoyable but also scientifically validated for its therapeutic potential, helping them navigate this life stage with greater mental well-being. Future Directions and Limitations While this study represents a significant advancement, the authors acknowledge certain limitations. The scarcity of data on very high exercise doses for mind-body exercises means their full potential and upper limits of effectiveness require further investigation. Additionally, the study did not extensively explore how individual factors such as baseline estrogen levels, genetic predispositions, or prior physical activity history might influence optimal dosing. Future research could delve deeper into these personalized aspects to further refine exercise prescriptions. Despite these limitations, the systematic review and network meta-analysis provides a robust foundation for evidence-based exercise interventions for menopausal depression. By moving beyond generalized advice to precise, dose-specific recommendations, the study offers a promising pathway towards improving the quality of life for millions of women navigating the complexities of menopause. The research was supported by multiple grants, including the 2025 Zhaoqing Institute of Educational Development Master of Education Special Research Project and the Guangdong Province Education Science Planning Project. The authors declared no conflicts of interest. Post navigation Critical Thinking Subskills in Project-Based EFL Learning: Uneven Salience and Conditional Activation
