Comparison of respiratory muscle strength and endurance, maximal oxygen consumption, and fatigue in colorectal cancer survivors with healthy adults


Sanver M. F. , VARDAR YAĞLI N. , SAĞLAM M. , TEKERLEK H. , ÇALIK KÜTÜKCÜ E. , İNAL İNCE D. , ...Daha Fazla

SUPPORTIVE CARE IN CANCER, 2021 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası:
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s00520-020-05963-3
  • Dergi Adı: SUPPORTIVE CARE IN CANCER

Özet

Purpose This study aimed to evaluate respiratory muscle strength and endurance, maximal oxygen consumption, and fatigue of colorectal cancer (CRC) survivors and compare them with healthy individuals. Methods Demographic and clinical characteristics were recorded. Respiratory muscle strength (maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP)) was measured using an electronic mouth pressure device, and respiratory muscle endurance was assessed using a constant workload protocol with linear workload device. Peak oxygen consumption (VO(2)peak) was measured using the cardiopulmonary exercise test (CPET) with modified Bruce protocol. Fatigue was assessed using the Brief Fatigue Inventory (BFI). Results The patients had similar demographic characteristics (p > 0.05). MEP (cmH(2)O and %predicted) were lower in the CRC group than in healthy controls (p < 0.05). MIP (cmH(2)O and %predicted) and test duration did not differ between the groups (p > 0.05). VO(2)peak (ml/min and %predicted) and VO(2)peak/kg (%predicted) were significantly lower in the CRC group (p < 0.05). BFI score differed significantly in the CRC and control groups (p < 0.05). Conclusion Respiratory muscle strength, maximal exercise capacity, and fatigue are adversely affected in CRC survivors. Cancer treatment may cause loss of muscle strength and impair energy metabolism and oxygen transmission. These changes can result in decreased exercise capacity and respiratory muscle strength and increased fatigue. Studies examining the effects of different exercise training programs in CRC survivors are needed.