The Development Of Self-assessment Method Of Cardiopulmonary Fitness And The Establishment Of Reference Grades For Adults

Objectives: The purpose of this study was to develop self-assessment method of cardiopulmonary fitness(CRF) and establish evaluation rating for adults, combining self-assessment with the evaluation theory and principles.The purpose of developingself-assessment method of CRF was to use the method of self-test, to make the general publicachievetheir CRF assessment by themselves.Subjects and methods: According to the research purpose,subjectswere divided into exercise testingcardiorespiratory fitness( ET-F)group and Non-exercise testing cardiorespiratory fitness(NET-F)group.The participants of ET-F were 217 adults(including modeling group 200 andvalidation group 17) aged 20-49 years. VO2 max was measured using a Bruce treadmill protocol. All participantscompleted a maximal graded exercise test(GXT) to assess VO2 max.The participants of ET-F evaluation ratinggroupwere 683 adultsaged 20-49 years.The participants of NET-F were 258 adults(including modeling group 232 andvalidation group26) aged 20-49 years.The participants of NET-F evaluation ratinggroupwere 426 adultsaged 20-49 years. The testing methods included6-minute stair climbing and descending test, cardiopulmonary exercise test(CPET) and Non-exercise testing cardiorespiratory fitness(NET-F)-estimating method.Results:Developed exercise testingcardiorespiratory fitness method and evaluation rating.Models were established using stepwise multiple regression. Exercise testingcardiorespiratory fitness(a metabolic equivalent of VO2max) was calculated using sex and work.Non-exercise testingcardiorespiratory fitness method and evaluation rate were developed. Non-exercise testing cardiorespiratory fitness(a metabolic equivalent of VO2max) was calculated using age, sex, body mass, PNFscores, and self-reported physical activity scores.Models were highly correlatedwith NET-F and ET-F based models in the literature.Cross-validation procedures were used to evaluate model consistency. NET-F and ET-F models can be valid predictors of VO2 max.The NET-F data collected just before the maximal GXT included the participant’s gender, age, body mass, perceived functional ability(PFAscores) to walk, jog, or run given distances; and current physical activity(PA-R) level.Conclusions:(1) 6-minute stair climbing and descending test can achieve self-evaluation of cardiorespiratory fitness, establishcardiorespiratory fitness evaluation rating.(2) Non-exercise testingcardiorespiratory fitness method can effectively be used to speculated VO2 max, and become a kind of evaluation method of cardiopulmonary fitness.( 3) We have established the cardiopulmonary endurancereference grades.This study provides a NET-F regression model. NET-F is a convenient way to predict VO2 max in adult men and women.