title: Differences in Ventilatory Threshold for Exercise Prescription in Outpatient Diabetic and Sarcopenic Obese Subjects.
abstract: Aim of the study was to examine cardiorespiratory parameters at individual ventilatory threshold (IVT) and peak exercise capacity ([Formula: see text]) in outpatient diabetic and sarcopenic obese subjects. Seventeen obese subjects (BMI: 36.6 ± 4.1 kg·m(-1)) and sixteen SO subjects (BMI: 37.0 ± 7.3 kg·m(-1)) were compared with sixteen T2DM subjects (BMI: 37.7 ± 5.6 kg·m(-1)). All groups performed an incremental exercise test on a treadmill according to their physical ability. [Formula: see text], %HRmax, and maximal metabolic equivalent (METmax) were evaluated at maximal effort. Moreover, [Formula: see text], %[Formula: see text], %HRmax, %HRR, ΔHR, and METivt were assessed at IVT. No significant differences were found in any physiological parameters at maximal effort ([Formula: see text], %HRmax, and METmax) in all groups. On the contrary, [Formula: see text], %[Formula: see text], %HRmax, %HRR, ΔHR, and METivt were significantly lower in T2DM subjects as compared to OB and SO subjects at IVT (p < 0.05). Our results show that while at maximal effort there are no differences among groups, at IVT the physiological parameters are lower in T2DM subjects than in OB and SO subjects. Therefore, due to the differences observed in the groups, we suggest usng the IVT as a useful parameter to prescribe aerobic exercise in obese with sarcopenia or diabetes mellitus conditions.
authors.affiliation: Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135 Rome, Italy; Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
authors.forename: Gian Pietro
authors.initials: GP
authors.lastname: Emerenziani
authors.affiliation: Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135 Rome, Italy.
authors.forename: Maria Chiara
authors.initials: MC
authors.lastname: Gallotta
authors.affiliation: Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135 Rome, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Migliaccio
authors.affiliation: Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy; LiSa Laboratory, Policlinico of Catania, Universitario of Catania, Catania, Italy.
authors.forename: Emanuela A
authors.initials: EA
authors.lastname: Greco
authors.affiliation: Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
authors.forename: Chiara
authors.initials: C
authors.lastname: Marocco
authors.affiliation: Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: di Lazzaro
authors.affiliation: Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
authors.forename: Rachele
authors.initials: R
authors.lastname: Fornari
authors.affiliation: Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Lenzi
authors.affiliation: Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135 Rome, Italy.
authors.forename: Carlo
authors.initials: C
authors.lastname: Baldari
authors.affiliation: Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135 Rome, Italy.
authors.forename: Laura
authors.initials: L
authors.lastname: Guidetti