In summary, this study compared the differences in
pain, ODI, and lumbar muscle strength before and after ER,
EER, and SER in patients who underwent PLIF at least 3
months before the study. The ODI scores of EERG were
significantly lower than those of the other exercise groups.
Regarding deep muscle strength and endurance, SERG had
a significantly greater PBU value than the other exercise
groups. Regarding strength measured using MedX, EERG
exhibited significantly greater increase in strength than the
other groups at lumbar flexion angles of 12° and 0°. As well
as ER, EER and SER also decreased pain and ODI scores,
and increased the muscle strength of the PLIF patients.
Therefore, using the correct rehabilitation methods would
help patients attain pain-free and happier lives