The Breath project (Project Number: 2022-1-PL01-KA220-HED-000089283) has been Co-funded by the European Union. Views and opinions expressed are however those of the author or authors only and do not necessarily reflect those of the European Union or the Foundation for the Development of the Education System. Neither the European Union nor the entity providing the grant can be held responsible for them.

Interval or constant load exercise training in adults with cystic fibrosis.

Choose one of the available languages:
https://www.draeger.com/en-us_us/Products/Non-invasive-ventilation-Masks
Institution
King's College London
Institution Typology
Hospital, Rehabilitation Center
Country
United
Description
Intervention design: During the non-invasive ventilation (NIV) session, subjects completed 10 NIV-supported breaths, followed by up to four repetitions of the forced exhalation and coughing technique, as required. During habitual airway clearance techniques (ACT), subjects performed similar routines of forced exhalations and coughing. The subjects received two 30-minute ACT sessions a day supervised by a physiotherapist specializing in FQ for adults with NIV training (GS). People involved: 14 participants in the airway clearance techniques (ACTs) group n= 7 and ACT + non-invasive ventilation (NIV)=7 Barriers identified: Exercise training in the CF population is challenging due to the limitations presented by compromised respiratory function. Low arterial oxygen saturation during constant load exercise (CLE) does not allow people with CF to exercise at high intensities for long enough to achieve the necessary physiological adaptations. Sustainability: Interval exercise training (IE) was well tolerated by adults with CF, as it was associated with mild arterial oxygen desaturation and moderate levels of breathlessness. Transferability: IE can be applied to adults with CF with less shortness of breath and arterial oxygen desaturation, thus qualifying as a safe exercise training modality. The approach can be adapted to other respiratory diseases or conditions and in other countries or demographic groups.
Disease
Cystic Fibrosis
Activity level
Medium
Activity Typology
Rehabilitation section-based activities
Motivation Tools
Not available

Innovation
There was no difference in treatment effect between NIV-supported ACT and ACT alone, although the study was not properly weighted. Oxygen saturations were significantly higher during NIV-supported ACT, but with no effect on saturations after treatment. NIV was well tolerated.

Evaluation System
Twenty-four adults with FQ were randomized to a 30-minute EI workout (100% of peak work capacity (WRpeak) for 30-s alternated with 40% WRpeak for 30-s; n=12) or 30 minutes of CLE (70% WRpeak; n=12), 3 times a week for 12 weeks. Isometric muscle strength of the quadriceps was assessed using a Myometer strain gauge.







The magnitude of improvement in quadriceps muscle strength was greater (p=0.037) in the IE groups (by 32±13 Nm) compared to the CLE groups (by 23±12 Nm). Maximal inspiratory and expiratory mouth pressures were significantly improved only in the IE group (30±10 cmH2O; p=0.009 and 13±4 cmH2O; p=0.007, respectively). Arterial oxygen saturation during training was higher (p=0.002) in the IE group (94±1%) compared to the CLE group (91±1%), while dyspnea values were lower (p=0.001) in the IE group (3.8±0.7) compared to the CLE group (5.9±0.8).

Assessment
IS is equally effective than constant load exercise (CLA) in improving functional capacity and aspects of quality of life, but is superior to CLA in improving peripheral and respiratory muscle strength and levels of daily physical activity.
References
Kaltsakas, G., Chynkiamis, N., Anastasopoulos, N., Zeliou, P., Karapatoucha, V., Kotsifas, K., ... & Vogiatzis, I. (2021). Interval versus constant-load exercise training in adults with Cystic Fibrosis. Respiratory physiology & neurobiology, 288, 103643. doi.org/10.1016/j.resp.2021.103643" target="_blank">doi.org/10.1016/j.resp.2021.103643" target="_blank">doi.org/10.1016/j.resp.2021.103643" target="_blank">doi.org/10.1016/j.resp.2021.103643" target="_blank">doi.org/10.1016/j.resp.2021.103643

Log in to comment >>

Wiktoria Wencel, uniwersytet opolski - Poland (PL)
Bardzo pomocne