• Journal of the Korean Applied Science and Technology
• /
• v.40 no.2
• /
• pp.342-347
• /
• 2023

The purpose of this study was to determine the comparison of upper arm, trunk and core muscle activities according to different performance in high Plank exercise using weightless exercise equipment. Six males(age, 23.00±0.73 years; height, 172.95±2.05 cm; body mass, 66.83±2.75 kg; and BMI, 22.33±0.72 kg/m²) completed this study as the subjects. Four type's high Plank exercises using weightless exercise equipment were performed(high plank, HP; high plank with air walker, HPAW; high plank with surf board, HPSB; high plank with waist trainer, HPWT). For the EMG analysis, we measured the body muscle activities of right side on the deltoid(DT), triceps brachii(TB), latissimus dorsi(LD), and external oblique(EO). This research's results were as follows. DT, TB, LD, & EO muscle activities were greatest during HPSB(p=.000). Therefore, these results are expected to serve as basic data for high Plank exercise using weightless exercise equipment performance applications in effective exercise programs.

• Journal of the Korea Convergence Society
• /
• v.10 no.7
• /
• pp.93-100
• /
• 2019

The purpose of this study is to measure abdominal muscle thickness when Pelvic Floor contraction (PFC) and Abdominal Drawing-In Maneuver (ADIM) were separately applied and combined exercise was applied and to compare the effects of the exercise. After the pre-investigation, the subjects were given a explanation of the purpose and the method of the research and then an experiment was conducted targeting a total of 30 subjects, who voluntarily agreed with this. Thicknesses of internal oblique (IO), transverse abdominis (TrA) and external oblique (EO) were measured during a break and then three types of exercise. All the measured values of the experiment were processed using Repeated measure ANOVA, and Bonferroni method was applied. As a result, the three types of exercise showed significant differences in thicknesses of IO, TrA and EO. In conclusion, the subjects had the thickest muscles and muscular activity increased during PFC+ADIM, compared to PFC and ADIM.

• Physical Therapy Korea
• /
• v.13 no.2
• /
• pp.61-69
• /
• 2006

The purpose of this study was to compare the electromyography (EMG) activities of the lumbar extensor muscles during motion of trunk flexion-extension and compare range of motion (ROM) with a 3-dimensional motion analysis system of the lumbar region between subjects with chronic low back pain (CLBP) and healthy subjects during the trunk flexion-extension, trunk rotation and trunk lateral flexion cycle. Thirty CLBP subjects and thirty healthy subjects were included. We measured the root mean square (RMS) value of the lumbar extensor muscles from resting, standing, lumbar flexion and return position. The RMS ratio was normalized from maximal EMG activity of the lumbar extensor muscles during trunk motion. The results of this study showed that the RMS ratio of the lumbar extensor was significantly higher in CLBP subjects than healthy subjects during all of trunk motion (p<.05). The ratio of the highest RMS value during flexion and extension was higher in CLBP subjects than in healthy subjects (p<.05). The ROM of the lumbar region was significantly lower in CLBP subjects than healthy subjects during trunk flexion-extension, trunk rotation and lateral flexion cycle. The relationship between the RMS ratio for full lumbar flexion and the ROM of lumbar flexion was not correlated significantly. CLBP subjects have both decreased ROM of the lumbar region and higher muscle activities of the lumbar extensor muscle than healthy subjects.

• Journal of the Korean Society of Physical Medicine
• /
• v.6 no.2
• /
• pp.189-197
• /
• 2011

Purpose: Trunk muscle weakness in the children with cerebral palsy can lead to postural and alignment problems, breathing difficulties, and so on. Therefore, children with cerebral palsy can benefit from exercises that strengthen the muscles in their trunks. The purpose of this study was to investigate the effects of trunk muscle strengthening exercise on functional gross movement and balance ability in children with spastic diplegic cerebral palsy. Methods: We used single group repeated measure design in 8 children(four males, four females; aged 6~12 years; mean 8.3 years) with diplegia. The functional gross motor outcome measured by using the GMFM and balance ability of all children was measured by pediatric balance scale. All participants were alternately received trunk strengthening exercise and neurodevelopment treatment for 40 minutes twice per week during 8 weeks. Results: Significant and clinical meaningful improvement in functional gross motor and balance ability were shown. Conclusion: The results indicate that trunk strengthening exercise has a positive effect on both functional gross motor and balance ability in children with spastic diaplegic cerebral palsy.

• PNF and Movement
• /
• v.9 no.4
• /
• pp.49-55
• /
• 2011

Purpose : The aim of this study was to identify of bilateral trunk rotation(BTR) exercise and PNF exercise on gait in the individuals with malalignment syndrome. Methods : Subjects were 32 that were divided 2 groups in 20's generation. Interventions were trunk ratation exercise and PNF exercise. We used Medex for trunk rotation exercise. BTR group received exercise for three-sets (10min/set) along with stretching exercise ten-minutes, 3 times per week. PNF group took turns the D1 pattern in upper extremity and the D1 pattern in the opposite side of lower extremity for three-sets (10min/set). The measurement were force metatarsal 1 (FM 1), impulse metatarsal 1 (IM 1), force heel lat (FHL), impulse heel lat (IHL) by using footscan (RS scan). Statistical method was repeated measurement of ANOVA and p value was 0.05. Results : BTR and PNF group were significantly different in time(FM 1, IM 1, FHL, IHL). As different of right/left, BTR and PNF exercise were significantly different in FM 1, IM 1, FHL. Conclusion : BTR exercise was good exercise for malalignment but needs expensive equipment, for example, Medex. PNF exercise doesn't need expensive equipment but good method in malalignment syndrome person for gait ability. If PNF exercise is more experiment, PNF exercise could use variety for more patients.

• PNF and Movement
• /
• v.9 no.2
• /
• pp.55-63
• /
• 2011

Purpose : The Purpose of this study was performed to find out back flexibility and strength by Swiss ball and sling exercise. Methods : Subjects were randomly assigned to 3 groups; Swiss ball(n=9), Sling(n=8) and Swiss ball and Sling(n=8). Each groups had the exercise 30 minute per week for 4 weeks. The case of Swiss ball-sling group had 15 minutes for ball exercise and 15 minute for sling exercise. Results : First, sling group among groups significantly increased in flexibility test 1. Second, ball group among groups significantly increased in flexibility test 2. Third, ball-sling group among groups significantly increased in strength test 1 and 2. Fourth, follow-up study after 2 weeks was revealed that flexibility and strength were decreased in all groups. Conclusion : The effect were not consistent with exercise methods. Accordingly, it should be selected for purpose and effect you want.

• Journal of the Korean Society of Physical Medicine
• /
• v.7 no.1
• /
• pp.77-85
• /
• 2012

Purpose : The purpose of this study was to investigate the effects of trunk exercises on the balancing ability of elderly Hansen's disease patients with lower extremity dysfunction. Method : A total of 24 elderly Hansen's disease patients were divided into two groups: 10 without lower extremity dysfunction and 14 with lower extremity dysfunction. The groups exercised for 60 minutes, two days a week, for a total 12 weeks; balancing ability was measured with the one leg standing test, tandem walking test, and timed up-and-go test. The patients were tested and their results were compared both before and after the completion of their exercise programs. Lower extremity dysfunction was assessed according to the following criteria: unilateral foot-drop, toe-loss, and below-knee amputation. Results : After the exercises, participants in both groups showed a positive, statistically significant difference in balance, compared with before the exercises (the one leg standing test, tandem walking test, and timed up-and-go test; p<.05). For comparison purposes, the group with dysfunction and the group without dysfunction were tested before and after the completion of their exercises. Before the exercises, there was a statistically significant difference in the one leg standing test, tandem walking test, and timed up-and-go test (p<.05). However, after the exercises, there was no significant difference in the one leg standing test, tandem walking test, and timed up-and-go test (p>.05). Conclusion : Ultimately, balancing ability was improved in both of the groups after trunk exercises were performed. Although balancing ability was improved, elements of lower extremity dysfunction remained, such as unilateral foot-drop, toe-loss, and below-knee amputation.

• Journal of Convergence for Information Technology
• /
• v.9 no.5
• /
• pp.172-179
• /
• 2019

The purpose of this study was to investigate the effects of virtual reality game based training on balance and upper limb function in subacute stroke patients. Thirty patients with subacute stroke were randomly assigned to experimental groups(n=15) and control groups(n=15) applying virtual reality game-based training programs. Intervention is applied three times a week for 6 weeks, 30 minutes for 1 time. In the study group, there was a significant improvement in balance ability, upper extremity function, and trunk impairment scale(p<.05), and the difference between the two groups was significant in the BBS, TUG, TIS(p<.05). Based on these results, the virtual reality game based training program is clinically useful exercise program for subacute stroke patients.

• PNF and Movement
• /
• v.22 no.2
• /
• pp.201-211
• /
• 2024

Purpose: This study aimed to evaluate the effects of trunk stabilization exercises using a Reformer on trunk control, balance ability, and gait function in chronic stroke patients. Methods: The participants were 24 chronic stroke patients, randomly divided into two groups: trunk stabilization exercise using the Reformer group (TS-R, n = 12) and general trunk stabilization exercise group (GT-E, n = 12). Assessment methods included the Trunk Impairment Scale for trunk control, the AMTI force platform for static balance, the Timed Up and Go test for dynamic balance, and the Dynamic Gait Index for gait function. Assessments were conducted before and after the intervention. The intervention for the TS-R group consisted of bridging exercises using a Reformer, while the GT-E group performed bridging exercises on a mat. All interventions were performed for 17 minutes per session, five times a week, for a total of 20 sessions over four weeks. Statistical analysis was performed using repeated-measures ANOVA to analyze the interaction between groups and time. Results: The results of the repeated measures ANOVA indicated a significant interaction between the groups and time. The TS-R group showed statistically significant differences in all variables before and after the intervention. In contrast, the GT-E group did not show statistically significant differences in any variables before and after the intervention. Conclusion: The findings of this study suggest that trunk stabilization exercises using a reformer are effective in improving trunk control, balance ability, and gait function in chronic stroke patients.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
• /
• v.24 no.2
• /
• pp.29-36
• /
• 2018

Background: The purpose of this study was to investigate the effect of leg lift difference on serratus and upper trapezius when exercising in a scapula in a prone position, a typical waist stabilization exercise for subjects with a winged scapula. Method: Twenty normal adults and 20 subjects with winged scapula participated in the experiment. The surface EMG recordings were obtained from external oblique muscle and internal oblique muscle during scapula protraction exercise. The presence or absence of winging of the shoulder bone was measured using an electronic digital caliper for the distance the medial border of the scapula is lifted to the rear. In prostrate pier movement posture in both groups, both legs supporting, dominant leg lifting, and non-dominant leg lifting including the scapula protraction were conducted respectively. Results: In the results of comparison between the two groups, the dominant external oblique muscle and the non-dominant internal oblique muscle tended to increase according to the difference of the leg lifting of normal people. In the winged scapula group, internal oblique muscle showed increased muscle activity more than external oblique muscle. Conclusion: It was most effective to exercise with lifting the same position leg for strengthening the same external oblique muscle, and the opposite internal oblique muscle. Also, it is effective to exercise in prone pier movement posture for trunk stability. In addition, internal oblique muscle shows increased muscle activity in subjects with winged scapula. Therefore, appropriate adjustment of external oblique muscle and internal oblique muscle may have a positive effect on scapula dysfunction for trunk stability.