Background. Far-infrared emitting garments have biological properties, among which the capability to increase blood perfusion in irradiated tissues. Design. Aim of the study was to evaluate if far-infrared radiation increases maximal exercise capacity and delays the recourse to anaerobic metabolism in non-athletes healthy subjects. Methods. With a double-blind, random cross-over protocol, a maximal cardiopulmonary exercise test was performed in 20 volunteers, wearing far-infrared or common sport clothes, identical in texture and color. Results. Higher oxygen uptake at peak of exercise, longer exercise time and delayed anaerobic threshold were observed with far-infrared vs. placebo garments (peak oxygen uptake 38.0±8.9 vs. 36.2±8.5 ml/kg/min, endurance time 592±85 vs. 570±71 seconds, oxygen uptake at anaerobic threshold 72.8±19.3 vs. 64.4±13.9% of predicted maximal oxygen uptake, respectively; p<0.01). Moreover, in 10 subjects blood lactate concentration was measured every 2 minutes of exercise and at peak: lower values were observed with far-infrared fabrics compared to placebo since the eighth minute of exercise, reaching a significant difference at ten minutes (3.6±0.83 vs. 4.4±0.96 mmol/l; p=0.02; see fig.). Conclusions. In healthy subjects, exercising with far-infrared outfit is associated with an improvement in exercise performance and a delay in the occurrence of anaerobic metabolism in comparison to common sport clothes. In consideration of non-thermic properties of functionalized clothes, these effects could be mediated by an increase in oxygen peripheral delivery secondary to muscular vasodilation. As a possible clinical application, use of far-emitting garments could be suggested in rehabilitation programs of heart failure patients if similar responses were observed even in this population.

Increase of maximal oxygen uptake during incremental cardiopulmonary exercise test in normal subjects wearing far-infrared emitting garments / V. Mantegazza, M. Contini, C. Vignati, P. Agostoni. ((Intervento presentato al 78. convegno Congresso Nazionale della Società Italiana di Cardiologia tenutosi a Roma nel 2017.

Increase of maximal oxygen uptake during incremental cardiopulmonary exercise test in normal subjects wearing far-infrared emitting garments

V. Mantegazza;C. Vignati;P. Agostoni
2017

Abstract

Background. Far-infrared emitting garments have biological properties, among which the capability to increase blood perfusion in irradiated tissues. Design. Aim of the study was to evaluate if far-infrared radiation increases maximal exercise capacity and delays the recourse to anaerobic metabolism in non-athletes healthy subjects. Methods. With a double-blind, random cross-over protocol, a maximal cardiopulmonary exercise test was performed in 20 volunteers, wearing far-infrared or common sport clothes, identical in texture and color. Results. Higher oxygen uptake at peak of exercise, longer exercise time and delayed anaerobic threshold were observed with far-infrared vs. placebo garments (peak oxygen uptake 38.0±8.9 vs. 36.2±8.5 ml/kg/min, endurance time 592±85 vs. 570±71 seconds, oxygen uptake at anaerobic threshold 72.8±19.3 vs. 64.4±13.9% of predicted maximal oxygen uptake, respectively; p<0.01). Moreover, in 10 subjects blood lactate concentration was measured every 2 minutes of exercise and at peak: lower values were observed with far-infrared fabrics compared to placebo since the eighth minute of exercise, reaching a significant difference at ten minutes (3.6±0.83 vs. 4.4±0.96 mmol/l; p=0.02; see fig.). Conclusions. In healthy subjects, exercising with far-infrared outfit is associated with an improvement in exercise performance and a delay in the occurrence of anaerobic metabolism in comparison to common sport clothes. In consideration of non-thermic properties of functionalized clothes, these effects could be mediated by an increase in oxygen peripheral delivery secondary to muscular vasodilation. As a possible clinical application, use of far-emitting garments could be suggested in rehabilitation programs of heart failure patients if similar responses were observed even in this population.
dic-2017
Settore MED/11 - Malattie dell'Apparato Cardiovascolare
Società Italiana di Cardiologia
Increase of maximal oxygen uptake during incremental cardiopulmonary exercise test in normal subjects wearing far-infrared emitting garments / V. Mantegazza, M. Contini, C. Vignati, P. Agostoni. ((Intervento presentato al 78. convegno Congresso Nazionale della Società Italiana di Cardiologia tenutosi a Roma nel 2017.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/710457
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