• Journal of Digital Convergence
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• v.15 no.5
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• pp.479-486
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• 2017

The purpose of this study is to investigate the effects of lumbar stabilization exercise on pain-related function of industrial workers with chronic low back pain and lumbar instability. 20 industrial workers with chronic low back pain were divided into two groups, control group(n=10) and experimental group(n=10). Back muscle strength, flexibility, and balance ability were measured to assess physical functions, and visual analog scale(VAS) was used to evaluate pain levels. In both groups, back muscle strength and balance ability increased significantly, and pain levels decreased significantly. In comparison between the groups, the experimental group compared to the control group showed significant improvement in balance ability and significant diminishment in pain levels. In conclusion, the lumbar stabilization exercise has positive effects on industrial workers with lumbar instability and chronic low back pain by improving balance ability and reducing pain.

• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.348-356
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• 2009

The purpose of this study was to examine the effect of bridging using Swiss ball, whole body vibration (WBV), and mat on trunk and lower extremity muscle activity and postural stability. The results were as follows: 1) EMG activity of internal oblique increased significantly in WBV condition compared with mat condition (p<.05). 2) EMG activity of rectus femoris and medial gastrocnemius increased significantly in Swiss ball condition and WBV condition compared with mat condition (p<.05). 3) The muscle activity of medial hamstrings increased significantly in Swiss ball condition compared with mat condition (p<.05). 4) The limit of stability in three groups increased significantly in all directions after 4-week intervention (p<.05). 5). There were no significant differences in the limit of stability among three groups after 4-week intervention (p>.05). Therefore the trunk and lower extremity muscle activity increased in Swiss ball and WBV conditions, and postural stability was improved in three groups after intervention period.