• PNF and Movement
• /
• 제16권1호
• /
• pp.125-132
• /
• 2018

Purpose: The aim of this study was to investigate the isolated activation ratio of the quadriceps femoris muscle on different support surfaces during squat exercise. Methods: Twenty participants (10 males and 10 females) voluntarily agreed to participate in the research after receiving an explanation about the purpose and process of the study. Each participant performed squat exercises on three different support surfaces (a flat surface, a form roller, and an unstable surface). Muscle activities of the rectus femoris (RF), vastus medialis (VM), and vastus lateralis (VL) were measured by electromyography. The isolated activation ratio of the quadriceps femoris muscle was calculated using the %isolation formula. Results: For the squat exercise, the %isolation value of the VM was significantly higher on the unstable surface than on the flat surface and form roller. In contrast, the %isolation values for the RF for the squat exercise were significantly higher on the flat surface and form roller than on the unstable surface. There was no significant differences in the %isolation values of the VL on the three different surfaces. Conclusion: The findings indicate that squat exercise on different surfaces results in differential activation of the quadriceps femoris muscle, which suggests that squat exercise on a multi-directional unstable surface could increase the isolated activation ratio of the VM.

• PNF and Movement
• /
• 제17권3호
• /
• pp.353-368
• /
• 2019

Purpose: This study investigated the effects of trunk exercise using less-affected extremities on gait and balance in chronic stroke patients. Methods: Thirty subjects with chronic stroke disease were divided into two groups: a trunk exercise group that used less-affected extremities (n=15) and a general trunk exercise group (n=15). All interventions were conducted 30 min a day, 6 times per week, for 3 weeks. Gait parameters were measured before and after the intervention using Zebris FDM-1.5. In addition, all subjects were evaluated using the Trunk Impairment Scale, the Berg Balance Scale, and the Functional Gait Assessment before and after the intervention. Results: Both groups showed improvements on all outcome measured pre- to post-intervention (p<0.05). The groups exhibited significant differences for TIS, BBS, FGA, gait speed, step length, and cadence at post-intervention (p<0.05). Conclusion: This study showed that trunk exercise using less-affected extremities has therapeutic benefits on gait and balance in individuals with chronic stroke disease.

• PNF and Movement
• /
• 제16권3호
• /
• pp.475-484
• /
• 2018

Purpose: The aim of the present study was to investigate the effect of a PNF orofacial exercise program on diadochokinesis in subacute stroke patients with dysarthria. Methods: Thirteen subacute stroke inpatients with dysarthria were recruited for the study. All participants were randomly assigned to two groups: an experimental group (n=7) and a control group (n=6). The experimental group performed a PNF orofacial exercise program, and the control group carried out an orofacial self-exercise. Both groups received the treatments 30 minutes per day, 5 days per week, for 4 weeks. The outcome measures were assessed before and after the intervention, including an alternating motion rate (AMR) and sequential motion rate for diadochokinesis. Results: After the intervention, both groups showed significant improvement in diadochokinesis (p<0.05). In the change values for both groups, the experimental group showed a more significant improvement than the control group did in /pə/ of AMR (p<0.05). Conclusion: These findings suggest that PNF orofacial exercise programs may have positive effects on the improvement of diadochokinesis in subacute stroke patients with dysarthria.

• PNF and Movement
• /
• 제17권1호
• /
• pp.19-29
• /
• 2019

Purpose: This study was an investigation of the effects of the bridge exercise with the sensory feedback of combined abdominal drawing-in on transverse abdominal and balance in patients with stroke. Methods: Forty subjects were randomly assigned into two groups. Subjects in the bridge exercise group (BG, n = 20) or feedback drawing-in bridge exercise group (FDBG, n = 20) were studied for 30 minutes each, twice daily, for four weeks. Outcomes were measured using affected weight distribution (AWD), anterior limit of stability (ALOS), posterior limit of stability (PLOS), timed up-and-go test (TUG), the Berg balance scale (BBS), and transverse abdominis thickness (TRA) before and after the four-week intervention period. Results: There were significant effects in the FDBG pre-intervention and post-intervention in AWD, ALOS, PLOS, TUG, BBS, and TRA. Conclusion: The results of this study suggest that the bridge exercise with sensory feedback combined with abdominal drawing-in could be beneficial for patients with stroke in terms of transverse abdominal and balance.

• PNF and Movement
• /
• 제9권3호
• /
• pp.1-9
• /
• 2011

Purpose : The purpose of this study was to find the effects of the transverse abdominis/internal abdominal oblique (TrA/IO), multifidus (MF) muscles while stabilization exercise was performed in a four-point kneeling position on the unstable surface. Methods : Twenty healthy adults volunteered to participate in this study. Each subject was instructed regarding maximum voluntary isometric contractions (MVIC) and stabilization exercise in four-point kneeling on the unstable surface. While MVIC and stabilization exercise of individual muscles were being performed, activation of the muscles was measured using surface electromyography (EMG). Activation of the muscles while performing stabilization exercise in four-point kneeling on the unstable surface was normalized to a percentages of the MVIC. Results : TrA/IO, MF muscles showed no significant differences among the surfaces. Conclusion : Activation of the trunk muscles while performing stabilization exercise in four-point kneeling does not effect on the surface.

• PNF and Movement
• /
• 제9권2호
• /
• 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.

• PNF and Movement
• /
• 제20권1호
• /
• pp.1-8
• /
• 2022

Purpose: The purpose of this study was to investigate the effect of blood flow restriction bridge exercise on leg muscle thickness and balance. In addition, it is to promote blood flow restriction exercise as the basis for early prevention, diagnosis, and treatment of sarcopenia in clinical practice. Methods: Twenty elderly women aged 65 years or older were selected to participate in this study. The subjects were divided into two groups of 10: one with blood flow restriction with bridge exercise (BFRG) and the other with bridge exercise alone (BG). As for the exercise method, the thickness of rectus femoris and vastus medialis and Berg balance scale were investigated by intervention for 30 minutes a day, 3 times a week, for a total of 6 weeks. Results: There was significant difference in the thickness of the rectus femoris and vastus medial and within-group changes in the Berg balance scale (p <0.05) before and after the experiment in the BFRG and BG groups (p<0.05). There was a significant difference in change between the two groups (p <0.05). Conclusion: There was a significant difference in the intragroup change of the Berg balance scale in the BFRG before and after the experiment, but there was no significant difference in the BG, and there was no significant difference in the change between the two groups.

• PNF and Movement
• /
• 제20권1호
• /
• pp.31-39
• /
• 2022

Purpose: The purpose of this study was to identify the effects of general exercise after blood flow restriction on trunk muscles thickness in children with spastic cerebral palsy. Methods: Twenty children with cerebral palsy were assigned randomly to an experimental (n = 10) or a control (n = 10) group. The experimental group performed general exercise after blood flow restriction, while the control group performed general exercise alone. The study used an ultrasonic instrument to measure trunk muscles thickness. The Wilcoxon signed-rank test was used to determine differences before and after treatment, and the Mann-Whitney U test was used to determine differences between treatment groups. Results: From a comparison within the groups, the experimental and control groups showed significant difference in trunk muscle thickness after the experiment (p < 0.05). In a comparison between the two groups, the experimental group showed more significant difference in trunk muscle thickness than the control group (p < 0.05). Conclusion: Based on these results, general exercise after blood flow restriction effectively improves trunk muscle thickness in children with cerebral palsy.

• The Journal of Korean Physical Therapy
• /
• 제24권4호
• /
• pp.253-261
• /
• 2012

Purpose: In this study, the following experiment was conducted to see how to apply the sprinter pattern in proprioceptive neuromuscular facilitation (PNF) and functional weight bearing exercise affected balance capabilities and weight bearing among chronic stroke patients. Methods: The subjects included 27 subjects who had been diagnosed with hemiplegia due to stroke. A total of 12 sessions was held, 3 sessions a week over 4 weeks, were provided to the groups. The control group received general rehabilitation program, and the experimental group performed sprinter pattern in PNF or functional weight bearing exercise. The weight bearing capability and static balance capability test was implemented by using Good-Balance System and Frailty and Injuries Cooperative Studies of Intervention Techniques, while the dynamic balance capability test was carried out by using Four Square Step Test and Timed "Up and Go". Results: The paretic/nonparetic side weight bearing by application of each exercise showed that there were no significant differences in variation among each groups on before exercise, after exercise, 2 weeks after exercise. Static balance test by application of each exercise showed that there were significant differences after exercise and 2 weeks after exercise. Dynamic balance test by application of each exercise showed that there were significant differences after exercise and 2 weeks after exercise. Conclusion: To put the results together, the application of sprinter pattern and functional weight bearing exercise was effective in improving static and dynamic balance capabilities. Therefore, these exercises are helpful to improve balance in patients with stroke.

• PNF and Movement
• /
• 제8권3호
• /
• pp.17-25
• /
• 2010

Cardiac disease is the class of diseases related to the heart that plays an important role in supplying blood to our body and the number of deaths is increasing every year. Cardiac Rehabilitation has been conducted as treatment and prevention in such patients with cardiac disease. Cardiac rehabilitation programs in general contain pat~ient education and consulting service in order to improve physical strength in patients with cardiac disease, decrease cardiac symptoms, promote fitness, and minimize the risk of following cardiac problems including cardiac arrest. Among them therapeutic exercise is the mainstream of cardiac rehabilitation, however, to accomplish more efficient patient care, standardized guideline based on each disease and researches from a physical therapy perspective are required.