ОЦЕНКА ИНДЕКСА ?НАПРЯЖЕНИЕ-ВРЕМЯ? ПРИ МЫШЕЧНЫХ НАГРУЗКАХ НА ФОНЕ ДОБАВОЧНОГО СОПРОТИВЛЕНИЯ ДЫХАНИЮ

The functional state of the inspiratory muscles during exercise with and without resistive load was assessed with calculation of the "tension-time" index. TTm index values ranged up to 0.025 during exercise without resistive load, and 0.24 with resistive load. Increase in the index is mainly due to increased values promoted by mouth inspiratory pressure and high values of TI/TT. Predicted respiratory muscle dysfunction with prolonged exposure resistive resistance may have an adverse effect on the adequacy of gas exchange, especially during exercise.