One month of treadmill training preserved ovarian reserve in adult female mice, increasing primordial follicle counts and anti-Müllerian hormone levels while slowing follicle depletion. The effect was mediated by adiponectin, a fat-derived hormone that suppressed mTOR signaling and restrained premature follicle activation; pharmacological activation of adiponectin receptors extended reproductive span independently of exercise. Because ovarian decline drives hormonal shifts affecting bone, brain, cardiovascular, and metabolic health, interventions that slow it carry implications well beyond fertility.
Key Points
- Treadmill training preserved primordial follicle reserve and raised AMH in mice
- Adiponectin mediated the effect by suppressing mTOR-driven follicle activation
- Adiponectin receptor agonists extended reproductive span without exercise
Longevity Analysis
Ovarian aging sets the pace for much of female aging, and the hormonal cascade that follows reaches bone density, vascular function, cognition, and mood. Identifying adiponectin as the messenger between muscular work and follicle preservation clarifies a mechanism that daily movement already engages, while offering a measurable marker to track rather than a symptom to wait for. The finding also reframes mTOR restraint as a reproductive conservation strategy, positioning consistent physical training as an upstream intervention rather than a downstream correction.
Original published by LifeSpan.io, by Anna Drangowska-Way.