From: 12 weeks high intensity interval training versus moderate intensity continuous training in chronic low back pain subjects: a randomised single-blinded feasibility study
Feasibility endpoints
HIIT (n = 14)
MICT (n = 16)
p-value
 Enjoyability, median (IQR)
2 (1)
2 (1.8)
0.67
 Willingness to continue the training, median (IQR)
3 (1)
3 (0.4)
0.42
 Adverse events, n
8
9
 Persons reporting AE, n
4