Abstract.[Purpose] The purpose of this study was to investigate the effects of a resistance and stabilization complex exercise on the strength and cross-sectional area of lumbar muscles of typical adults in their twenties. [Subjects and Methods] For this study, 14 male adults in their twenties were chosen and randomly assigned to either the resistance exercise group (REG, n=7) or the resistance and stabilization exercise group (RSEG, n=7). They then exercised for 50 minutes three times a week for 8 weeks.[Methods] Pegasus was used to measure the strength of the lumbar muscles of the normal adults and computed tomography (CT) images were taken and compared to examine the changing crosssectional areas of the lumbar muscles.[Results] Both groups showed a significant increase in the strength of their lumbar muscles. For the cross-sectional area of the lumbar muscles, only the superficial stabilizer muscle of the REG group showed a significant increase, whereas both the superficial stabilizer and the deep stabilizer muscles of the RSEG group showed a significant increase.[Conclusion] The resistance and stabilization complex exercise for the lumbar muscles had positive effects on both the strength of the lumbar muscles as well as on the cross-sectional areas of the superficial stabilizer and deep stabilizer muscles. Therefore, resistance and stabilization complex exercise appears to be an effective exercise program for the prevention of lower back pain.

Abstract. [Purpose] This study examined the effects of computer-aided cognitive rehabilitation (CACR) training and balance exercise on elderly individuals' cognitive and visual perception.[Subjects] Thirty healthy subjects aged between 65 and 80 participated in this study. They were randomly and equally assigned to either a CACR training group (TG) or a balance exercise group (BEG).[Methods] Subjects' cognitive functions and visual perception were measured using the Korean mini-mental state examination (MMSE-K) and the motor-free visual perception test (MVPT-3), respectively. For intervention methods, the TG received interval vision training using the RehaCom program, a Cognitive Rehabilitation Computer Program derived the Vienna Test System, and vision composition training with attention training programs for 30 minutes, 3 times per week, for 6 weeks. The BEG training consisting of warm-up exercises, main exercises, and cool-down exercises, for 50 minutes, 3 times per week, for 6 weeks.[Results] Both the TG and the BEG saw their MMSE-K and MVPT-3 scores significantly increase after the interventions, but the two groups showed no significant differences. [Conclusion] Given that the effects of CACR training were similar to those of the balance exercise training, we consider CACR training is a viable treatment method for preventing the decrease of cognitive function among the elderly.

Abstract.[Purpose] The purpose of this study was to examine the effects of lumbar resistance and stabilization complex exercises on upper/lower extremity muscle strength and endurance of the general adult population. [Subjects] Fourteen male adults in their 20s participated. Seven persons each were randomly assigned to a resistance exercise group (REG) or a resistance and stabilization exercise group (RSEG). Exercise programs were implemented three times a week for 50 minutes for eight weeks.[Methods] The Biodex System 3 Pro was used to measure the upper/lower extremity muscle strength and endurance of the REG and RSEG prior to the intervention and at four and eight weeks following the commencement of the intervention. The results were then compared and analyzed.[Results] With regards to changes in upper/lower extremity muscle strength and endurance, both groups showed significant increases during the experimental period. The two groups also exhibited differences in muscle strength during upper/lower extremity flexion and differences in muscle endurance during upper extremity extension and lower extremity flexion.[Conclusion] Lumbar resistance and stabilization complex exercises positively affected both upper and lower extremity muscle strength and endurance. In particular, the RSEG showed larger effects than the REG. Therefore, the resistance and stabilization complex training exercises appear to be more effective for rehabilitation of the upper/lower extremities.

This paper tries to examine whether the application of joint mobilization to subjects who have the forward head posture due to malalignment in the cervical joint has influence on posture changes and functions in the cervical joint.The subjects were 39 students from G University in Gyeongsangbuk-do. The cervical joint mobilization was applied to 20 subjects and not to 19. The students with a cervical lordosis angle of 21° or less, an anterior weight bearing (AWB) of 15mm or greater, and a cervical extension ROM of 70° or less in terms of radiography were selected as subjects under their voluntary agreement. The patients actively performed the joint mobilization slowly 8 times per session while therapists continuously applied sustained accessory glide to their painful joints 3 times per week for 4 weeks along with the cervical expansion and flexion in SNAGS among other Mulligan's (1995) techniques. The measurement was carried out in terms of radiographic inspection and neck disability indexes.As a result of the experiment, it turned out that the subjects with the forward head posture had changes in the cervical AWB and ARA, the ranges of expansion and flexion, and the NDI(Neck Disability Index) after the intervention for the experimental group by applying cervical joint mobilization. There were no changes observed in the control group.In conclusion, the application of joint mobilization turned out to have influence on the improvement of cervical joint postures, and craniocervical region functions.

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