Integrating participatory ergonomic management in non-weight-bearing exercise and progressive resistance exercise on self-care and functional ability in aged farmers with knee osteoarthritis: a clustered randomized controlled trial

将参与式人体工程学管理融入非负重运动和渐进式阻力训练，对患有膝骨关节炎的老年农民的自我护理和功能能力的影响：一项整群随机对照试验