Τίτλος:
Interval versus constant-load exercise training in adults with Cystic Fibrosis
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Background: The efficacy of interval exercise (IE) compared to constant-load exercise (CLE) training remains unsettled in adults with Cystic Fibrosis (CF). Methods: Twenty-four adults with CF were randomised to 30-min IE (100 % peak work capacity (WRpeak) for 30-s alternated with 40 % WRpeak for 30-s; n = 12) or 30-min CLE (70 % WRpeak; n = 12) training, 3 times weekly, for 12 weeks. Isometric quadriceps muscle strength was assessed using a strain gauge Myometer. Results: The magnitude of improvement in quadriceps muscle strength was greater (p = 0.037) in the IE (by 32 ± 13 Nm) compared to the CLE (by 23 ± 12 Nm) groups. Maximum inspiratory and expiratory mouth pressures were significantly improved only in the IE group (by 30 ± 10 cmH2O; p = 0.009 and 13 ± 4 cmH2O; p = 0.007, respectively). Arterial oxygen saturation during training was higher (p = 0.002) for IE (94 ± 1%) compared to CLE (91 ± 1%), whereas dyspnoea scores were lower (p = 0.001) for IE (3.8 ± 0.7) compared to CLE (5.9 ± 0.8) Conclusions: IE is superior to CLE in improving peripheral and respiratory muscle strength and preferable to CLE because it is associated with lower exercise-induced arterial oxygen desaturation and breathlessness. © 2021 Elsevier B.V.
Συγγραφείς:
Kaltsakas, G.
Chynkiamis, N.
Anastasopoulos, N.
Zeliou, P.
Karapatoucha, V.
Kotsifas, K.
Diamantea, F.
Inglezos, I.
Koulouris, N.G.
Vogiatzis, I.
Περιοδικό:
Respiratory Physiology and Neurobiology
Λέξεις-κλειδιά:
adult; arterial oxygen saturation; Article; body composition; body image; clinical article; constant load exercise training; controlled study; cystic fibrosis; dyspnea; exercise; female; human; interval exercise training; male; muscle strength; parallel design; priority journal; prospective study; quadriceps femoris muscle; randomized controlled trial; respiratory function; walking distance; work capacity; breathing muscle; comparative study; complication; cystic fibrosis; dyspnea; kinesiotherapy; middle aged; physiology; procedures; young adult, Adult; Cystic Fibrosis; Dyspnea; Exercise Therapy; Female; Humans; Male; Middle Aged; Muscle Strength; Outcome Assessment, Health Care; Prospective Studies; Respiratory Muscles; Young Adult
DOI:
10.1016/j.resp.2021.103643
