Fig. 2From: Effect of different conditioning methods of traditional Chinese health exercise on lung function in healthy middle-aged and elderly people: study protocol for a randomized controlled trialSPIRIT figure. SPIRIT figure showing the times points for enrollment, interventions, and assessments. FVC, forced vital capacity; FEV1, forced expiratory volume in 1 s; MVV, maximal voluntary ventilation; VC, vital capacityBack to article page