Modified Talk Test: a Randomized Cross-over Trial Investigating the Comparative Utility of Two “Talk Tests” for Determining Aerobic Training Zones in Overweight and Obese Patients

Abstract Background To validate the traditional talk test (TTT) and an alternative (ATT; using a visual analog scale) in overweight/obese (OW-OB) patients to establish its accuracy determining aerobic training zones. Methods We recruited 19 subjects aged 34.9 ± 6.7 years, diagnosed with overweight/obesity (BMI 31.8 5.7). Every subject underwent incremental cycloergometric tests for maximal oxygen consumption, TTT randomized order. At end of each stage during TTT, read out loud 40 words text then had identify comfort two modalities: which consisted answering “Yes,” “I don’t know,” or “No” question Was talking comfortable? , ATT through 1 10 numeric perception scale (visual (VAS)). The magnitude differences was interpreted comparison smallest worthwhile change used determine agreement. Results There agreement between power output at VAS 2–3 ventilatory threshold (VT1) (very likely equivalent; mean difference ? 1.3 W, 90% confidence limit (CL) (? 8.2; 5.6), percent chances higher/similar/lower values 0.7/99.1/0.2%). Also, there 6–7 2 (VT2) 11.1 CL (2.8; 19.2), 0.0/97.6/2.4%). Conclusions is tool exercise intensity zones prescription OW-OB patients.