A novel respiratory device and the application of cardiorespiratory
performance to hemodialysis patients
Abstract
Background: Muscle wasting and limitation in physical activity have been
reported in patients with hemodialysis; this leads to poor quality of
life at the end. Objective: To develop the respiratory training device
and to determine the efficiency of the prototype on respiratory muscle
strength, functional capacity and dyspnea perception in hemodialysis
patients. Design, setting and participants: the development of
respiratory device was created and then effects of respiratory device
were examined in hemodialysis patients. A total of 25 patients with
quasi experimental study was recruited in the present study with aged ≥
35 years old. All participants had a history of hemodialysis 3 days per
week. Outcome measurements and statistical analysis: The protocol was
conducted 15 inhales, three set per day with 40% of maximal inspiratory
pressure; totally 45 inhales. The participants were asked to perform for
three times per week during on hemodialysis. Respiratory muscle
strength, the 6minute walk test and rate of dyspnea scores were assessed
before and after 8-week intervention program. Paired t-tests was used to
compare between initial values and follow-up values in respiratory
prototype. Results: Of 25 patients at initially was enrolled, 22
individuals (88%) completed in the 8-week program. Significant improve
in inspiratory muscle strength, 6minite walk distance and rate of
dyspnea was observed after 8-week intervention (12.44± 3.55 cmH2O,
24.78 ± 8.89 meters, and 0.50 ± 0.19, respectively). Conclusion: Using
porotype of respiratory device can effectively improve cardiorespiratory
performance which is marked by increasing inspiratory muscle functional
capacity and rate of dyspnea in hemodialysis patients after 8-week
training program.