• The Journal of Korean Physical Therapy
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• v.16 no.1
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• pp.14-31
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• 2004

The Purpose of this study was to investigate the change of lumbar extensor strength according to lumbosacral angle on chronic lumbar back pain patients. For this investigation lumbar extensor strength was administered to 60 patients who were diagnosed chronic lumbar back pain The subjects was to investigate lumbosacral angle in standing position and it were calculated lumbar extensor strength by using Medex. The result of this study summarized are as follows ; 1. Total experimental group exhibited significantly higher difference than control group in lumbar extensor strength among all degree lumbosacral angle. 2. In the relationship between experimental group and control group in lumbar extensor strength among lumbosacral angle, all degree difference was revealed II, I, III order. 3. In the relationship between experimental group and control group in lumbar extensor strength among lumbosacral angle, I group difference was did not. 4. In the relationship between experimental group and control group in lumbar extensor strength among lumbosacral angle, all degree among II group was noted significantly difference except 24, 72 angle. 5. In the relationship between experimental group and control group in lumbar extensor strength among lumbosacral angle, control group was revealed higher muscle strength 48, 60, 72 angle, however no significantly difference was noted 0, 12, 24 angle. The study was objected difference of other group in both of experimental and control group. Because lumbar extensor weakness with bad position was gradually increased back pain, to Maintain normal lumbosacral angle befor exercising lumbar extensor strength was most important.

• Journal of Korean Physical Therapy Science
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• v.14 no.1_4
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• pp.1-10
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• 2007

The purpose of this study was to find the effects of the lumbar stabilizing exercise on the isometric lumbar extension strength and the range of motion of lumbar extension. 16 healthy subjects were recruited (9 males, 7 females, mean age 25${\pm}$3.2). They performed 5 types of exercises 5 times per week for 4 weeks. We evaluated isometric trunk extension strength (0, 12, 24, 36, 48, 60, $72^{\circ}$) by MedX(Ocala, FL) and measured range of motion of lumbar extension. All measurements were measured at pre-exercise and 4 weeks post-exercise. The results of this study were summarized as follows; After 4 weeks of exercise, isometric lumbar extension strength was generally increased but there were only significant differences at $12^{\circ},\;24^{\circ},\;48^{\circ}$. The range of motion of lumbar extension was increased (p<.05). The isometric lumbar extension strength correlated with the range of motion of lumbar extension. In conclusion, our results have shown that lumbar stabilizing exercise influenced both lumbar extension strength and range of motion of lumbar extension.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.13 no.2
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• pp.21-30
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• 2007

Purpose: The purpose of this study was to evaluate effects of lumbar vertebrae mobilization and lumbar stabilizing exercises on the muscle strength. Methods: The subject were sixty healthy adult(30 females. 30 males) two decade from 21 to 35. All subjects randomly assigned the control group, lumbar vertebrae mobilization group, lumbar stabilizing exercises group. lumbar stabilizing exercises group received lumbar stabilizing exercises for 30 minutes, lumbar vertbrae mobilization group received lumbar vertbrae mobilization for 4-5 minutes per day and three times a week during 3 weeks period. BIODEX was used to measure muscle strength. All measurements of each subjects were measured at pre-experiment, after 10 day, and post-experiment. Results: The results of this study were summarized as follows; 1. The flexion strength test of control group, lumbar vertebrae mobilization group, lumbar stabilizing exercises group were no significantly differences at pre-experiment and after 10 days(p> .05), however significantly increased post-experiment(p <.05). The result of analyzed effects of flexion strength test was significantly increased accordining to experiment type(p <.05). 2. The extension strength test of control group, lumbar vertebrae mobilization group, lumbar stabilizing exercises group were no significantly differences at pre-experiment and after 10 days(p> .05), however significantly increased post-experiment(p <.05). The result of analyzed effects of extension strength test was significantly increased accordining to experiment type(p <.05). Conclusion: conclusionally these data suggest that a 3-week lumbar stabilizing exercises improved muscle strength. Additional randomized controlled trials to more fully investigate trement effects and factors that may mediate these effect are needed.

• Journal of The Korean Society of Integrative Medicine
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• v.2 no.3
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• pp.39-48
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• 2014

Purpose : The purpose of this study was to identify the effect of lumbar stabilization exercise (LSE) and isometric lumbar strengthening exercise (ILSE) on lumbar strength and lumbar extension range in healthy young adults. Method : Ten healthy young adults (six males and four females) volunteered to carry out the LSE and ILSE program for two weeks. The subjects were randomly allocated to two groups: the LSE group (n=5) and the LSE plus ILSE group (n=5). The LSE consisted of 20 minutes of exercise related to lumbar stabilization, and the ILSE was composed of five minutes of isometric stabilization exercise with a specific device. Each group exercised three times per week for two weeks. Assessment tools were made using the subjects' isometric lumbar strength and lumbar extension range before and after the interventions. Results : Statistical analysis revealed significant differences in isometric lumbar strength and the lumbar extension range between before and after the interventions in each group (p<.05). Also, the lumbar extension range improved significantly in the LSE plus ILSE group compared to the LSE group; however, there was no statistically significant difference in the two groups' isometric lumbar strength (p>.05). Conclusion : The findings suggest that ILSE might be feasible in clinical settings by offering benefits for lumbar function. Future studies will be continued.

• Physical Therapy Rehabilitation Science
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• v.11 no.3
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• pp.370-375
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• 2022

Objective: The purpose of this study was to compare the hip joint muscle strength of patients with chronic back pain with lumbar instability and normal subjects. Design: A case control study. Methods: Five types of lumbar instability test were conducted on forty young women with chronic low back pain for more than six months, and those who had 3 or more positive tests were selected as subjects. To select chronic back pain patients with lumbar instability group, aberrant movement patterns during lumbar flexion test (FMT), prone instability test (PIT), posterior-anterior mobility test (PAT), passive lumbar extension test (PLE), and pressure bio-feedback (PBF) were applied. In addition, a digital muscle strength meter was used to measure the hip flexor, extensor, adductor, and abductor muscles of chronic low back pain patients with lumbar instability group (n=20) and normal subject group (n=20). Results: As a result of comparing the hip joint muscle strength between the chronic back pain patient group with lumbar instability and the normal group, there were significant differences in the hip extensor, abductor, and adductor muscles (p<0.05). Conclusions: Patients of chronic back pain with lumbar instability were found to have weak hip joint muscle strength. Therefore, this study suggest that include hip joint strength exercise for functional recovery of chronic back pain patients.

• Journal of the Korean Academy of Clinical Electrophysiology
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• v.9 no.2
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• pp.39-46
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• 2011

Purpose : The purpose of this study was to compare the effect of three types of therapeutic exercises by applying them to lower back pain patients. Methods : This program was conducted for 30 patients 30 to 55 years old, who visited a rehabilitation center due to lower back pain. We separated participants into three groups with different therapeutic exercises: one with lumbar stabilization exercises, another with stretching exercises, and the other with both exercises. Each exercise was held once a day, 3 days a week, for 6 weeks. We analyzed the effect of these exercises by checking the change of lumbar muscle strength and pain relief. Lumbar muscle strength was measured by AS-Med and pain strength was estimated by VAS. Results : The result of the programs was established according to the following list: 1) Lumbar stabilization exercises and stretching exercises lead to higher lumbar muscle strength and pain relief (p<0.05). 2) Lumbar muscle strength in the lumbar stabilization exercise group was significantly higher than the stretching exercise group (p<0.05). 3) Pain relief in the stretching exercise group was significantly higher than the lumbar stabilization exercise group (p<0.05). Conclusion : This study shows all of the groups experienced higher lumbar muscle strength and pain relief. Specifically, there was higher lumbar muscle strength in the lumbar stabilization exercise group and higher pain relief in the stretching exercise group. Therefore the ideal intervention to improve lumbar muscle strength and pain relief for patients is to implement both lumbar stabilization exercises and stretching exercises.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.22 no.1
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• pp.1-7
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• 2016

Background: The purpose of this study was to investigate the effects of lumbar stabilization exercise with neurodynamic techniques on lumbar muscular strength and Oswestry index in lumbar disc herniation patient. Method: The Lumbar stabilization exercise with neurodynamic techniques was performed by 30 pt's in G hospital. The subjects were randomly organized into a study group 15 and control group 15. The exercises and neurodynamic technique were conducted for 40 minutes and, 3 times a week (total 24 times for 8 weeks). General characteristics of the Lumbar muscular strength and Oswestry disability index (ODI) were measured before the training and at 4 weeks and 8 weeks after the intervention. Comparison of the time dependent variable for each group was Calculated by a one way repeated analysis of variance (ANOVA). Comparison between the two groups was Calculated by an analysis of covariance (ANCOVA). Result: There was a significant difference in the Lumbar muscular strength and ODI (p<.05). Similarly in the inter-group analysis, significant differences (p<.05) occurred. Conclusion: In this study, we demonstrated that lumbar stabilization exercises with neurodynamic techniques are an effective therapy for Lumbar muscular strength and ODI in lumbar disc herniation patient's.

• Journal of Korean Physical Therapy Science
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• v.7 no.1
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• pp.353-365
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• 2000

The purpose of this study were to compare the lumbar extensor strength between pre op patients group and after 6 weeks post op patients group. To evaluate lumbar extensor strength of total 273 patients with HIVD. Lumbar extensor strength was measured in 151 male patients and 122 female patients(Lumbar extensor strength was measured in 91 PELD patients group and 182 OLM group patients) by Medx lumbar extension machine. Maximum voluntary lumbar extension strength was appear $149.36{\pm}61.92ft$-lbs in pre op of PELD group, $158.47{\pm}54.67ft$-lbs in post op of PELD group and $135.54{\pm}54.24ft$-lbs in pre op of OLM group. $147.19{\pm}52.42ft$-lbs in post op of OLM group in male. Maximum voluntary lumbar extension strength was appear $83.85{\pm}30.22ft$-lbs in pre op of PELD group. $92.99{\pm}28.66ft$-lbs in post op of PELD group and $75.16{\pm}24.98ft$-lbs in pre op of OLM group, $79.88{\pm}25.25ft$-lbs in post op of OLM group in female. Male and female lumbar extension strength was statistically significant difference(P<.05). Lumbar flexion/extension ratio of the two group was 2.14:1 pre op and 2.05:1 post op in lumbar flexion 72 and 0 degree. The ratio of post op group was lesser than pre op group.

• Korean Journal of Applied Biomechanics
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• v.15 no.2
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• pp.147-153
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• 2005

The purpose of this study were to compare the differences of isometric lumber extension strength and subjective pain degrees between obesity patients group and normal body fat group in disc surgical operated patients. The research purposed to indicate how isometric lumbar extension exercise for 12 weeks affected to lumbar strength and visual analogue scale of patients suffered by chronic back pain. The subjects were 65 low back pain patients(male 30, female 35)who had disease on lumbar in W hospital. The lumbar extension strength was measured at seven degrees of angles, which were $0^{\circ}$ $12^{\circ}$ $24^{\circ}$ $36^{\circ}$ $48^{\circ}$ $60^{\circ}$ and $72^{\circ}$ before and after the exercise program. We got the results of subjective pain degree using the modified visual analogue scale(VAS) of Lawlis et al(1989) and measured the maximal isometric lumbar strength of all subjects using MedX lumbar extension machine. Results were as follows; After the exercise, the lumbar extension strength of normal body fat patients groups included males and female were greater than that of the obesity patients groups in all angles(p<.05). The visual analogue scale of chronic back pain patients was decreased significantly after the exercise(p<.05). The results showed the significance between the lumbar extension strength and the visual analogue scale of chronic back pain patients and showed that the isometric lumbar extension exercise decreased the subjective pain degrees of visual analogue scale with and increased lumbar extension strength. The correlation between the visual analogue scale and the %body fat of chronic back pain patients was no significant after exercise. Therefore, the lumbar extension strength exercise is needed for improvement of back strength, decrease of %body fat.

• Journal of the Korean Society of Physical Medicine
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• v.6 no.3
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• pp.267-275
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• 2011

Objective : This study aims to examine how lumbar stabilization exercise and resistive exercise affect lumbar and lower extremity muscular strength of the aged. Method : Randomly selected 15 female senior citizens aged 65 or older at S, Y, and J senior citizens' center located in D city who meet the requirements for the study were divided into a resistive exercise group of 7 and a stabilization exercise group of 8 for which 60-minute-exercise sessions were administered three times a week for 12 weeks. Measuring lumbar and lower extremity muscular strength was measured six weeks and 12 weeks after exercise, respectively. Results : First, both resistive exercises and stabilization exercises are effective to improve lumbar muscular strength. Second, resistive exercise is effective to improve flexural muscle strength as well as lower extremity muscular strength, and stabilization exercise is effective for both flexion and extensor muscle strength. Conclusion : The 12 week lumbar stabilization exercise program appeared to be effective to improve lumbar and lower extremity muscular strength of the aged. This indicates that applying this program to identify and prevent frequent risk factors of falling can lead to the prevention of secondary problem factors of falling accidents.