I need help with finding information on the following question: Does the frequency of exercise have a significant impact on mental health outcomes in adults?

• Proposed Methods (e.g., the proposed design of the study, proposed participants (sample) would be used, proposed materials and apparatus, and a description of the procedure)
• Proposed Results (e.g., what statistical analysis would be used to analyze the results, any supplemental analysis you might run if the hypothesis was not supported, and a figure of the predicted trends)
• Proposed Discussion (e.g., a restatement of hypotheses and whether they were supported (based on the proposed results), connecting your results to past research, an alternative explanation for results, limitations of research, and generalizability of findings)

Previous research used: A study published in The Lancet Psychiatry found that individuals who exercised had significantly lower rates of depression and anxiety than those who did not exercise. Another study published in the American Journal of Psychiatry found that even a tiny amount of exercise can have a positive impact on mental health outcomes.