This study will investigate the effects of aerobic exercise on mental states, cognition, BDNF, and long-term outcomes in patients with bipolar disorder.

Multiple cognitive impairments are common in patients with bipolar disorder. Preliminary evidence shows that aerobic exercise might have positive effects in enhancing cognition and improving clinical symptoms in patients with mood disorders. This randomized controlled trial will investigate short-term (1 months) effects of aerobic exercise on cognition and clinical symptoms as well as the long-term (12 months) effects on decreasing the recurrence rate.

Inclusion Criteria:

• DSM-IV defined bipolar disorder.
• Never accept aerobic exercise therapy.
• dextromanuality.

Exclusion Criteria:

• Diagnosed neurological or musculoskeletal disorder/injury,
• Uncontrolled cardiovascular or metabolic diseases that are not suitable for running
• Diagnosed hypertension
• Other diagnosed serious medical conditions that are not suitable for cycling
• Severe suicidal ideation
• Mental retardation
• Currently participating in a exercise program or activity, defined as 30 minutes of vigorous physical activity 4-5 times per week