Feasibility of individualized aerobic threshold-based exercise on ventilatory efficiency in sedentary adult asthma patients

Abstract

Background: The aim of this trial was to assess the feasibility of the future definitive study that will define the effects of aerobic threshold based exercise on ventilatory efficiency in sedentary adult female asthma patients. Methods: Six female asthma patients performed an individualized aerobic training program for 7 weeks with their ventilatory parameters measured before and after exercise intervention using breath-by-breath gas analysis and graded treadmill test until volitional exhaustion. Paired samples t-test was used to compare baseline and control values. Results: Statistically significant changes in resting ventilatory equivalents for oxygen and carbon-dioxide, increases in exercise capacity, decrease of nadir ventilatory equivalents for oxygen and carbon-dioxide values and a shift of the aerobic threshold and associated heart rate toward higher exercise intensity were noted as a result of training adaptation (p < 0.05). The participants' medicament diary demonstrated a decrease in daily inhaled therapy and in personal rating of perceived exertion (p < 0.05). Conclusions: These results suggest feasibility of individual aerobic threshold based exercise contribution toward asthma control in asthma patients.

Exercise Training Programs Improve Cardiorespiratory and Functional Fitness in Adults With Asthma

“…Frequency of training was reported in all but two studies51,78 and was generally described as sessions/wk or d/wk. Frequency ranged from 148 to 1249 sessions/wk, with 3 sessions/wk being the most common prescription (n = 18 studies) 35,36,40,42,44–46,50,51,53–58,61,63,64,70. Candemir et al60 prescribed training 5 d/wk for participants, with 3 d designated for aerobic exercise and 2 d designated for resistance exercise.…”

“…60 Only four studies reported measures of muscular fitness 49,58,68,69,77 including 1RM testing, 68 dynamometers, 49,58 or manual muscle testing. 77 Measures of HRPF reported in addition to one of the above outcomes included resting/submaximal HR, 35,42,61,62,66,67 anaerobic threshold, [43][44][45]50 peak ventilation, 35,42,45,48 and peak workload. 35,41,46,48,51,53…”

“…21,38,41,43,55,56,68,69,[72][73][74][75] Twelve studies (31%) scored as fair quality 37,44,45,47,48,53,54,58,[61][62][63][64]66,76 and 17 (44%) scored as poor quality. 35,36,39,40,42,46,[49][50][51][52]57,59,60,64,67,70,71,77,78 Of the 23 studies that had a randomized or quasi-randomized design, nine (39%) were deemed to be good quality, 21,38,41,43,55,56,6...…”

“…Data were extracted from the 39 studies (see Supplemental Digital Content 2, available at: http://links.lww.com/ JCRP/A386) of which there were 18 RCTs (46%), 21,36-38, 40,41,43,44,53,55,56,58,65,68,69,72-76 one randomized cross-over trial (3%), 60 four quasi-/pseudo-RCTs (10%), 48,54,62,63,77 six non-RCTs (15%), 42,45,47,51,52,78 and 10 pre-post-experimental studies (26%). 35,39,46,49,50,57,59,60,67,70,71 Publication year ranged from 1983 37 to 2021. 56,74,75 Studies were conducted in 18 different countries, with 21% of studies conducted in Brazil (n = 8) 21,38,41,47,68,69,72,73,75 and a further 10% conducted in the United States (n = 4) 36,44,45,70,71 and the Netherlands (n = 4).…”

“…Frequency ranged from 1 48 to 12 49 sessions/wk, with 3 sessions/wk being the most common prescription (n = 18 studies). 35,36,40,42,[44][45][46]50,51,[53][54][55][56][57][58]61,63,64,70 Candemir et al 60 prescribed training 5 d/wk for participants, with 3 d designated for aerobic exercise and 2 d designated for resistance exercise. Otherwise, it was more common that studies designated a certain duration of each training session toward each type of exercise.…”