Incidence of VO2max Responders to Personalized vs Standardized Exercise Prescription

Introduction Despite knowledge of cardiorespiratory fitness (CRF) training responders and non-responders, it is not well understood how the exercise intensity prescription impacts the incidence of response. The purpose of this study was to determine CRF training responsiveness based on cohort specific technical error (TE) following 12 weeks of standardized or individually prescribed exercise and the use of a verification protocol to confirm maximal oxygen uptake (VO2max). Methods Sedentary adult participants (9 men; 30 women; 48.2±12.2 yr) completed exercise training on 3 days a week for 12 weeks with exercise intensity prescribed based on standardized methods using heart rate reserve (HRR) or an individualized approach using ventilatory thresholds. A verification protocol was used at baseline and 12 weeks to confirm the identification of a true VO2max and subsequent relative percent changes to quantify CRF training responsiveness. A cohort-specific TE (4.7%) was used as a threshold to identify incidence of response. Results Relative VO2max significantly increased (p

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