• Title, Summary, Keyword: Unstable surface

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The Difference of Trunk Muscle Activities In Trunk Stabilization on the Stable and Unstable Surface. (안정한 지지면과 불안정한 지지면에서의 자세에 따른 체간안정화 근육 활성도 비교)

  • Kim, Suhyon
    • Journal of The Korean Society of Integrative Medicine
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    • v.6 no.2
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    • pp.37-44
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    • 2018
  • Purpose : The aim of this study is to compare the trunk muscle activities in trunk stabilization on the stable and unstable supporting surfaces using by sEMG. Methods : The subjects of this study include seventeen male. We measured sEMG activities of rectus abdominis and erector spine in subjects during trunk stabilization such as plank exercise, quadruped position, quadruped position with rising hand and foot on the stable and unstable surface. Results : sEMG activities in plank exercise was significantly higher in left rectus abdominis and left erector spine on unstable surface then stable surface (p<.05). sEMG activities of left rectus abdominis and left erector spine in quadruped position was significantly higher in unstable surface than stable surface (p<.05). In comparison with posture, Plank exercise showed a significant difference increase other postures (p<.05). Conclusion : sEMG activities of muscle in trunk stabilization was significantly higher in unstable surface than stable surface and plank exercise. So, we suggest that trunk stabilization on the unstable supporting surface and plank exercise were more effective method than stable surface to improve trunk muscles activities.

Study on the Correlation between Muscle Activity of Lower Extremity and Sway Speed of Chronic Stroke Patients according to Unstable Surface Training (불안정지지면 훈련에 따른 만성 뇌졸중 환자의 다리 근활성도와 동요속도의 상관성 연구)

  • Seo, Heungwon;Kim, Mungchul
    • Journal of The Korean Society of Integrative Medicine
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    • v.1 no.4
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    • pp.75-83
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    • 2013
  • Purpose : This research was conducted to see the correlation between sway speed and muscle activity for lower extremity of stroke patients through unstable surface training. Methods : A total of 60 patients were randomly divided unstable surface group (30 peoples) and stable surface group (30 people). Then they were asked to carry out the same exercise program for 6 weeks. The unstable surface group and stable surface group performed the exercise program on the balance mat and on the hard wood block. We checked the changes of sway speed and the changes in muscle activity for lower extremity. Results : The unstable surface group displayed significantly reduced sway speed, and improved muscle activity of lower extremity. There were significant correlation between change amount of muscle activity and sway velocity in Gastrocnemius, Biceps femoris during unstable surface training(r=.373, p<.05)(r=.369, p<.05). And there were not show significant differences during stable surface training. Conclusion : Judging from this, we can have knowledge that the correlation between increase of muscle activity and decrease of sway velocity for Gastrocnemius, Biceps femoris in the unstable surface training.

Effect of Support Surface Form on Abdominal Muscle Thickness During Flank Exercise (플랭크 운동 시 지지면의 형태가 복부 근육의 두께 변화에 미치는 영향)

  • Kim, Hyeonsu;Lee, Keoncheol
    • Journal of The Korean Society of Integrative Medicine
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    • v.7 no.3
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    • pp.197-204
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    • 2019
  • Purpose: The purpose of this study was to investigate the effects of the plank exercise to strengthen the core muscles on the muscle thickness of external and internal obliques and transverse abdominis muscle depending on the form of the support surface. Methods: This study was randomized to 12 males and 12 females in their 20s and conducted three times a week for 4 weeks. The subjects were divided into the two groups and performed flank exercise on a stable surface (stable surface group) and an unstable surface (unstable surface group). A mat was used as a stable surface, and an TOGU used as a unstable surface. Results : In both stable and unstable surface, the thickness changes of the transverse abdominis and external and internal oblique muscle increased (p<.05). In the unstable surface, there was a greater increase in the thickness change of the transverse abdominis and external oblique muscles in the flank exercise than in the stable surface (p.<05). Among them, the greatest increase was found in the external abdominal muscle (p<.05). Conclusion : This study found that the flank exercise was more effective in strengthening the abdominal muscles on an unstable surface, when compared with the outcomes on a stable one. It is also thought to have the most effect on the muscle activity of the external oblique muscle on unstable surface.

Comparision of the Muscle Activity and Balance of Lower Extremities in Exercise Using TOGU on the Unstable Surface and Stable Surface after Reconstruction of the ACL (앞십자인대 재건술 후 토구를 이용한 불안정한 표면에서 운동과 안정된 표면에서 운동 시 하지 근활성도와 균형의 비교)

  • Lim, Chang-Hun
    • Journal of the Korean Society of Physical Medicine
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    • v.7 no.3
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    • pp.251-258
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    • 2012
  • Purpose : The purpose of this study is to provide an efficient and basis for muscle activity of Quadriceps muscles and balance in anterior cruciate ligament reconstruction patients through unstable surface exercise and stable surface exercise. Methods : This study included 30 anterior cruciate ligament reconstruction patients belonging to A hospital and D orthopedic surgery clinic of province who attended the program for 30 minutes at a time and three times a week for 4 weeks. Of these 15 attended the unstable surface exercise program and 15 the stable surface exercise program. To increase muscle activity (%MVIC) and balance (WPL), the unstable surface exercise. Results : The %MVIC of lower extrmity muscle(RF, VL, VM) increased from before training to after training in the case of the participants who performed the unstable surface exercise, and the whole path length (WPL) decreased from before the training to after the training(p<.05). Conclusion : In conclusion, unstable surface exercise program helps to improve the balancing ability and musle activity in a anterior cruciate ligament recunstruction patients who requires both muscle activity and balance than stable surface exercise program.

The Correlation Between Changes of Ankle Joint Position Sense and Sway Area Through Unstable Surface Training (불안정지지면 훈련을 통한 발목관절위치감각 변화와 동요면적 변화간의 상관관계)

  • Ha, Na-Ra;Kim, Myung-Chul;Han, Seul-Ki
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.9
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    • pp.1383-1389
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    • 2013
  • This research was conducted to see the correlation between changes of ankle Joint Position Sense and Sway Area through Unstable Surface training. For the study, 48 healthy males and females were randomly divided into an unstable surface group(n=24) and a stable surface group(n=24). Then, they were asked to carry out the same exercise program three times a week for six weeks. The unstable surface group and stable surface group performed the exercise program on the balance exercise pad and on the hard ground, respectively. As a result, the unstable surface group displayed significantly reduced error of ankle joint position sense and sway area(p<.05). Moreover, a significant correlation between variances of ankle joint position sense and sway area was only found in the unstable surface group. In conclusion, this study demonstrated that there was a significant correlation between changes of ankle joint position sense and sway area through proprioceptive sense training on the unstable surface.

Effect of the Breathing Methods in Accordance with Surfaces during Bridging Exercises (지지면에 따른 호흡운동 기법이 배근육 두께에 미치는 영향)

  • Bae, Won-Sik;Lee, Keon-Cheol
    • Journal of the Korean Society of Physical Medicine
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    • v.11 no.2
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    • pp.33-40
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    • 2016
  • PURPOSE: The purpose of this study was to determine the impact of stable and unstable surfaces on abdominal muscle thickness and changes in trunk muscle thickness in accordance with breathing methods during bridging exercises. METHODS: Bridging exercise on a stable surface, bridging exercise on an unstable surface, bridging exercise using a drawing-in maneuver on a stable surface, bridging exercise using a drawing-in maneuver on an unstable surface, bridging exercise using bracing on a stable surface, bridging exercise using bracing on an unstable surface. In sequence, the muscles' thickness was measured three times before and after each exercise, and the measured value was averaged. RESULTS: There were significant differences in internal oblique and transversus abdominis muscles' thickness in the drawing-in maneuver in both stable and unstable surface (p<0.05). There were no significant differences in external oblique muscle's thickness in the bridging exercise in both stable and unstable surface. The type of surface did not have a significant influence on the abdominal muscles' thickness. CONCLUSION: As a result of the study, the drawing-in maneuver had a greater effect than bridging or bracing maneuver on muscle thickness. We suggest that drawing-in maneuver will be more effective in a person with a weak abdominal muscle.

Comparison of Balance Ability between Stable and Unstable Surfaces for Chronic Stroke Patients (불안정 지지면과 안정 지지면에서의 만성 뇌졸중 환자의 균형 능력 비교)

  • Lee, Ji-Yeun;Roh, Hyo-Lyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.8
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    • pp.3587-3593
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    • 2011
  • This study was to investigate the balancing and clinical abilities using stable and unstable surface of stroke patients who surface changes in balance of body. The subjects of this study were 30 stroke patients(16 males and 14 females). They were separated into two groups and did balance reinforcing exercise on stable and unstable surfaces for five times a week for six weeks. To evaluate their balancing ability, they performed functional standing balance test, functional forward arm stretching test. performance-oriented mobility assessment was performed. The balancing exercises were modified from preceding studies and consisted of 6 difference exercises. The functional standing test with open and close eyes and performance-oriented mobility assessment, the unstable surface exercise group and the stable surface exercise group improved significantly. The forward arm stretching test was the unstable surface exercise group improved. This study found that the balancing exercise on unstable surface was more effective than on stable surface for stroke patients. Thus, exercise on unstable surface has more positive effects on the improvement of balancing abilities of stroke patients.

Effect of Unstable Surface Exercise on Trunk Posture and Balance Ability in Patients With Scoliosis: After six months follow-up (불안정한 표면 운동이 척추측만증 환자의 체간자세와 균형에 미치는 영향)

  • Lee, Woo Jin;Kong, Young Soo;Ko, Yu Min;Park, Ji Won
    • The Journal of Korean Physical Therapy
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    • v.25 no.5
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    • pp.232-238
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    • 2013
  • Purpose: The aim of this study was to evaluate the effect of lumbar stabilization exercise on an unstable surface on trunk posture and static standing balance ability in patients with scoliosis. Methods: Subjects included 18 patients who showed symptom of scoliosis. Patients were divided into two experimental groups, one using an unstable surface and one using a fixed surface, and the patients were required to perform a lumbar stabilization exercise a total of 12 times for 60 minutes per session, three times per week for a period of four weeks, with a six-months follow-up period. Results: A significant reduction was observed in the group that performed the lumbar stabilization exercise on an unstable surface (p<0.05). A significant decrease in both the condition of closed eyes or open eyes in the left and right directions was observed in the group that performed the lumbar stabilization exercise on an unstable surface (p<0.05). After six months, results of comparison of the length of both sides of the trunk showed a significantl decrease in the group performing lumbar stabilization exercises on an unstable surface. Conclusion: Lumbar stabilization exercise on an unstable surface improved the trunk posture of patients with scoliosis symmetrically, and static balance ability in a standing posture showed improvement. In the future, lumbar stabilization exercise on an unstable surface may be used as an exercise for posture correction and balance increase for patients with scoliosis.

Effect of Jumping Exercise on Supporting Surface on Ankle Muscle Thickness, Proprioception and Balance in Adults with Functional Ankle Instability

  • Park, Chibok;Kim, Byeonggeun
    • Journal of International Academy of Physical Therapy Research
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    • v.10 no.2
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    • pp.1756-1762
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    • 2019
  • Background: Functional ankle instability (FAI) indicating a decrease in muscle strength, proprioception, neuromuscular control, balance and postural control function. Objective: To investigate the effect of jumping exercise on the supporting surface on the ankle muscle thickness, proprioceptive sensation, and balance in adults with FAI. Design: Randomized Controlled Trial. Methods: Twenty young people with FAI were randomly assigned to the unstable supporting surface jump group (N=10) and the stable supporting surface jump group (N=10). The intervention was conducted three times a week for eight weeks, and for 30 minutes per session. Trampoline was used as an unstable support surface and the stable support surface was carried out on a regular floor. The thickness of the tibialis anterior muscle and medial gastrocnemius muscle was measured by ultrasonography, and the proprioception of dorsiflexion and plantarflexion was measured using an electrogoniometer. The dynamic balance was also measured with a balance meter. Results: The the muscle thickness of the medial gastrocnemius muscle was significantly higher in the stable supporting surface jump group than in the unstable supporting surface jump group (p<.05). Furthermore, the plantar flexion proprioception and dynamic balance were significantly improved in the unstable supporting surface jump group than in the stable supporting surface jump group in the intergroup comparison (p<.05). Conclusions: The conclusion has been reached in this study that the jumping exercise on the unstable supporting surface could be a more effective in improving FAI than the regular surface.

The Effect of Visual Deprivation on Trunk and Lower Extremity Muscle Activity on an Unstable Surface (불안정면에서 시각차단이 체간과 하지의 근활성도에 미치는 영향)

  • Han, Jin-Tae
    • PNF and Movement
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    • v.16 no.3
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    • pp.433-439
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    • 2018
  • Purpose: Visual information is one of the most important factors for postural balance. The purpose of this study was to investigate the effect of visual deprivation on the lower extremities and trunk muscle activity on an unstable surface during quiet standing. Methods: Fifteen healthy males from a university population participated in this study. Surface electromyography of the rectus abdominis, the erector spinalis, the vastus femoris oblique, the semitendinosis, the tibialis anterior, and the medial gastrocnemius was measured using EMG equipment (Telemyo 2400, Noraxon, USA). The participants were asked to maintain postural balance on an unstable surface (Balance pad, Airex, USA) for 30 seconds with eyes open and with eyes closed during quiet standing. The Wilcoxon test was used to compare the muscle activity of the lower extremities and the trunk between open and closed eyes on an unstable surface. Results: The muscle activity of the trunk and the lower extremities was increased more with eyes closed than with eyes open on the unstable surface during quiet standing. Conclusion: The findings from this study suggest that visual information could alter lower extremity and trunk muscle activity. Therefore, visual deprivation can be used as a method to improve postural balance.