TY - JOUR
T1 - Effects of high intensity interval training on exercise capacity in people with cystic fibrosis
T2 - study protocol for a randomised controlled trial
AU - Sawyer, Abbey
AU - Cavalheri, Vinicius
AU - Jenkins, Sue
AU - Wood, Jamie
AU - Cecins, Nola
AU - Singh, Bhajan
AU - Hill, Kylie
PY - 2018/11/6
Y1 - 2018/11/6
N2 - Background: In people with cystic fibrosis (CF), higher exercise capacity is associated with better health-related quality of life (HRQoL), reduced risk of hospitalisation for a respiratory infection and survival. Therefore, optimisation of exercise capacity is an important treatment goal. The Australian and New Zealand clinical practice guidelines recommend that people with CF complete 30 to 60min of moderate intensity aerobic exercise on most days of the week. This recommendation can be difficult to achieve by people with CF because of time constraints, and intolerable breathlessness and muscle fatigue during continuous exercise. In contrast, a low-volume, high intensity interval training (HIIT) program may be a more achievable and efficient training method to improve exercise capacity in people with CF. Methods: A randomised controlled trial will be undertaken. Forty people with CF (aged 15years) will be randomly allocated, on a 1:1 ratio, to either the experimental or control group. Regardless of their group allocation, all participants will be asked to continue with their usual daily treatment for the study duration. Those in the experimental group will complete 8weeks of thrice weekly HIIT on a cycle ergometer. Those in the control group will receive weekly contact with the investigators. The primary outcome of this study is exercise capacity. Secondary outcomes are HRQoL, exercise self-efficacy, feelings of anxiety, depression and enjoyment. These outcomes will be recorded at baseline (i.e. prior to randomisation) and following the 8-week intervention period. The study will also report other outcomes of the HIIT program (cardiovascular responses, symptom response, post-exercise muscle soreness and tolerance) and behaviour change techniques such as reinforcement, feedback and goal setting, used during the HIIT program.Discussion: This study will determine the effects of 8-weeks of supervised, low-volume HIIT, completed on a cycle ergometer on measures of exercise capacity, HRQoL, exercise self-efficacy, feelings of anxiety, depression and enjoyment. If effective, this type of training could be an attractive alternative to traditional continuous training because it may be more achievable and time efficient.Trial registration Australian and New Zealand Clinical Trials Registry (ANZCTR):12617001271392 (04/09/2017).
AB - Background: In people with cystic fibrosis (CF), higher exercise capacity is associated with better health-related quality of life (HRQoL), reduced risk of hospitalisation for a respiratory infection and survival. Therefore, optimisation of exercise capacity is an important treatment goal. The Australian and New Zealand clinical practice guidelines recommend that people with CF complete 30 to 60min of moderate intensity aerobic exercise on most days of the week. This recommendation can be difficult to achieve by people with CF because of time constraints, and intolerable breathlessness and muscle fatigue during continuous exercise. In contrast, a low-volume, high intensity interval training (HIIT) program may be a more achievable and efficient training method to improve exercise capacity in people with CF. Methods: A randomised controlled trial will be undertaken. Forty people with CF (aged 15years) will be randomly allocated, on a 1:1 ratio, to either the experimental or control group. Regardless of their group allocation, all participants will be asked to continue with their usual daily treatment for the study duration. Those in the experimental group will complete 8weeks of thrice weekly HIIT on a cycle ergometer. Those in the control group will receive weekly contact with the investigators. The primary outcome of this study is exercise capacity. Secondary outcomes are HRQoL, exercise self-efficacy, feelings of anxiety, depression and enjoyment. These outcomes will be recorded at baseline (i.e. prior to randomisation) and following the 8-week intervention period. The study will also report other outcomes of the HIIT program (cardiovascular responses, symptom response, post-exercise muscle soreness and tolerance) and behaviour change techniques such as reinforcement, feedback and goal setting, used during the HIIT program.Discussion: This study will determine the effects of 8-weeks of supervised, low-volume HIIT, completed on a cycle ergometer on measures of exercise capacity, HRQoL, exercise self-efficacy, feelings of anxiety, depression and enjoyment. If effective, this type of training could be an attractive alternative to traditional continuous training because it may be more achievable and time efficient.Trial registration Australian and New Zealand Clinical Trials Registry (ANZCTR):12617001271392 (04/09/2017).
KW - Cystic fibrosis
KW - Exercise
KW - High intensity interval training
KW - QUALITY-OF-LIFE
KW - PHYSICAL-ACTIVITY
KW - INTERMITTENT EXERCISE
KW - CHILDREN
KW - HEALTH
KW - CONSENSUS
KW - DISEASE
KW - ADULTS
KW - QUESTIONNAIRE
KW - VALIDATION
U2 - 10.1186/s13102-018-0108-2
DO - 10.1186/s13102-018-0108-2
M3 - Article
SN - 2052-1847
VL - 10
JO - BMC Sports Science, Medicine and Rehabilitation
JF - BMC Sports Science, Medicine and Rehabilitation
IS - 1
M1 - 19
ER -