• Journal of the Korean Society of Physical Medicine
• /
• v.7 no.4
• /
• pp.443-450
• /
• 2012

PURPOSE: This study was investigated to find the validity of active movement control test for low back pain patients with or without hamstring shortening. METHODS: The subjects of this study were 28 subjects and all of them agreed to participate in the study. All subjects were classified according to 4groups. Group1 was no LBP, no hamstring shortening. Group2 was no LBP, hamstring shortening. Group3 was LBP, no hamstring shortening. Group4 was LBP, hamstring shortening. We measured to see their low back pain and hamstring shortening with VAS, Goniometer for active movement control test. We analyzed the data using Cochran Q test and crosstabulation for agreement index. RESULTS: The results of this study were as follows : 1) Low back pain had effect on active movement control by Group1 and Group2. 2) Hamstring had effect on active movement control by Group1 and Group2 3)Low back pain with or without hamstring shortening had effect on active movement control by Group4 CONCLUSION: According the results of this study, active movement control test were significantly influenced on low back pain and hamstring interaction.

• Journal of Korean Physical Therapy Science
• /
• v.18 no.1
• /
• pp.51-60
• /
• 2011

Purpose: The purpose of this study was to investigate hamstring length during static uprighting position using weight distribution ratio. Methods: Ninety-six volunteers(56 males) were participated. The active knee extension test(AKE) was measured 3 times on both legs. The mean score of AKE was obtained. Then, the measurement of weight distribution ratio was observed 3 times on both legs, and its mean value was also calculated. Subjects were divided four groups based on their hamstring length measurement; both hamstring shortening group, left hamstring shortening group, right hamstring shortening group and normal hamstring length group. One-way ANOVA was employed to analyse collected data. Pearson's correlation was also hired to see any relationship between the hamstring length and the weight distribution. Results: In anterior/left area and posterior/right area, both hamstring shortening group left hamstring shortening group were superior to right hamstring shortening group and normal hamstring length group. Significant difference was existed statistically(p<.05) between groups. The correlation analysis between hamstring length and weight distribution ratio has not been shown any significant findings(Pant/post=0.733, Plt/rt=0.135). Conclusion: The results of the study may be applied to therapeutic management in posture and movement skill in musculoskeletal physical therapy.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
• /
• v.13 no.2
• /
• pp.45-54
• /
• 2007

The purpose of this study was effect of hamstring length on one leg stance test(OLST) in 108 persons. (men 28, women 80). The active knee extension test(AKE) was applied 3 times on both leg and high score was selected. Then, one leg stance test(OLST) was applied 3 times on both leg and high score was selected. Also, persons divided two group that is normal hamstring length group and shortening group). The result were as follows : 1. The correlation analysis between Lt. hamstring length and one leg stance time was no significant relation($p_{Lt.}=0.271$, $p_{Rt.}=0.051$). 2. The correlation analysis between Rt. hamstring length and one leg stance time was no significant relation($p_{Lt.}=0.837$, $p_{Rt.}=0.334$). 3. The independent T -test between Lt. hamstring normal (knee extension > 150degrees) & shortening group (knee extension ${\leq}$ 150 degrees) in Lt. leg stance time was no significant difference(p=0.73), but in Rt. leg stance time was statistically significant difference(p=0.04). 4. The independent T-test between Rt. hamstring normal (knee extension > 150degrees) & shortening group (knee extension ${\leq}$ 150 degrees) in one leg stance time was no significant difference($p_{Lt.}=0.09$, $p_{Rt.}=0.16$).

• PNF and Movement
• /
• v.20 no.3
• /
• pp.383-390
• /
• 2022

Purpose: The purpose of this study was to examine the effect of three-week contract-and-relax (CR) interventions with and without reinforcement using temporal summation for flexibility and dynamic balance ability in young people with hamstring shortening. Methods: This study was conducted on 20 female college students with hamstring shortening. The participants were divided equally into two groups using stratified randomization: the CR group (CRG) and the CR with reinforcement group (CRRG). All interventions were applied three times a week for three weeks. The passive straight leg raise (PSLR) test and functional reaching test (FRT) were conducted on each participant before and after the three-week intervention. Results: In both groups, PSLR and FRT improved significantly after the three-week intervention compared to before intervention (p < 0.01). The amount of change in PSLR after the three-week intervention was significantly higher in CRRG than in CRG (p < 0.05). Conclusion: Three-week CR interventions with and without reinforcement were effective in improving PSLR and FRT. To improve hamstring shortening, CR intervention with reinforcement may be more useful than CR intervention without reinforcement.

• PNF and Movement
• /
• v.22 no.1
• /
• pp.55-70
• /
• 2024

Purpose: The purpose of this study was to investigate the effects of three relaxation techniques, namely, Static Stretching Exercise (SSE), Eccentric Contraction Exercise (ECE), and Suboccipital Muscle Release (SMR) on the flexibility and balance of the lower limb in adults with hamstring shortening. Methods: The participants were 45 adults in their 20s with hamstring shortening. They performed three exercises (i.e., SSE, ECE, and SMR) for two weeks. We measured flexibility, muscle tone and stiffness, proprioception, and balance before and after the intervention, applying each relaxation technique. Data were analyzed using two-way repeated measures analysis of variance (ANOVA). The significance level was set at α=0.05. Results: Flexibility increased in the SSE, ECE, and SMR groups, with the SSE group showing the greatest improvement. Muscle tone and stiffness decreased in all groups, with the ECE group exhibiting the highest reduction. Proprioception increased in the SSE, ECE, and SMR groups, with SSE demonstrating the greatest enhancement. Balance also increased in all groups, with the ECE group showing the most pronounced improvement. Conclusion: Overall, all three relaxation techniques for hamstring shortening resulted in improved flexibility, muscle tone and stiffness, proprioception, and balance of the lower limb in adults with hamstring shortening. The findings of this study underscore the importance of selecting an appropriate technique according to the purpose of treatment and the condition of the patient.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
• /
• v.15 no.1
• /
• pp.64-71
• /
• 2009

Purpose: to purpose prevent to dysfunction and decrease to pain level use to active therapeutic movement and sling manual, stability exercise in shortening hamstring chronic back patient. Methods: The patient's complain was Buttock and Lower Back Pain due to dysfunction posture work. The subject's initial Pain Scale was 60 of 100(VAS). The Subject Treatment to Sling Mobility exercise, Home exercise, ATM, Sling Stability exercise, sensory motor training During 8weeks for 18 times. Results: The result was Visual Analog Scale(VAS)was decreased 10 of 100 after treatment. Conclusion: Visual Analog Scale(VAS)was decreased 10 of 100 after treatment. Functional Leg Length Was recover to same level. Trunk Flexibility was increase to 18cm. Active Knee Extension ankle was decrease to $15^{\circ}$ limit range of motion due to Lt. Hamstring Shortening limit range of motion $30^{\circ}$. GPS(Gobal Postural System)test was recover to same level. This case study need to sufficient data and times.

• Journal of the Korean Society of Physical Medicine
• /
• v.16 no.1
• /
• pp.49-61
• /
• 2021

PURPOSE: Hamstring muscle shortening is related to low back pain, and it is important to check the hamstring muscle flexibility and pelvic mobility to analyze the effects of the intervention. This study examined the effects of hamstring muscle shortening on flexibility and pelvic mobility according to the method of stretching the hamstring muscle in patients with low back pain. METHODS: Forty Low Back Pain Patients participated. The subjects performed the Visual Analogue Scale (VAS), Fear Avoidance Belief Questionnaire (FABQ), Korean version of Oswestry Disability Index (KODI), Myovision, and sensbalance therapy cushion (pelvic mobility, proprioception). The subjects were divided into two groups to perform the passive and active stretching protocol. The intervention was conducted three times a week for four weeks. RESULTS: Hamstring muscle flexibility was increased significantly in both groups (p < .05), and there was no difference between the groups. VAS, FABQ was decreased significantly in both groups (p < .01), and there was no difference between the groups. The left lower back muscle impedance was decreased significantly in both groups (p < .05). The passive stretching group showed a significant increase in the pelvic anterior, posterior, and left tilt ROM (p < .05). The active stretching group showed a significant increase in the pelvic anterior, posterior tilt ROM (p < .05). CONCLUSION: Both stretching methods may be useful intervention methods for pelvic mobility and pain recovery and can assess back pain recovery.

• Journal of the Korean Society of Physical Medicine
• /
• v.8 no.3
• /
• pp.433-441
• /
• 2013

PURPOSE: The purpose of this study was to determine the effectiveness of three PNF stretching techniques for improving hamstring flexibility and to compare the effectiveness of three PNF stretching techniques(direct and indirect and mix(direct&indirect) of hold-relax technique). METHODS: The subjects were randomly assigned into three groups: group1-direct-hold-relax technique(n=10); group2-indirect-hold-relax technique(n=8); group3-mix(direct&indirect)-hold-relax technique(n=10). For each group, stretch was performed three times a week for a period of three weeks. Hamstring flexibility for each group was measured using the ASLR and PSLR. RESULTS: The results showed significant improvement in hamstring flexibility for all subjects of three groups. However, were not significantly different between the three groups. CONCLUSION: In conclusion, three PNF stretching techniques are confirmed to be useful for improving hamstring flexibility. The choice for a qualified technique has to be made individually according to patient and therapist.

• PNF and Movement
• /
• v.21 no.1
• /
• pp.63-74
• /
• 2023

Purpose: This study aims to compare hamstring flexibility and pressure pain threshold (PPT) after an intervention with proprioceptive neuromuscular facilitation contract-relax (PNF CR) technique, myofascial release (MFR), and a massage gun (MG), as well as to verify the effectiveness of the MG. Methods: This study recruited 36 participants (22 males and 14 females) with shortening of less than 70 degrees upon a straight leg raise (SLR) test, and they were randomly assigned to one of the PNF, MG, and MFR groups, each of which underwent its own protocol for 30 minutes. Flexibility of the hamstring was measured after the intervention using the active and passive knee extension (AKE and PKE) test, the sit and reach test, and PPT. Results: The AKE and PKE angles significantly decreased, as well as significantly increased in flexibility when each of the PNF, MFR, and MG interventions was performed (p<0.05). In addition, there was no significant difference among groups. However, according to the Cohen's D effect size, the MG demonstrated the largest effect size in AKE (d = 1.41) and PNF demonstrated the largest effect size in PKE (d = 1.66) and flexibility (d = 0.63). Conclusion: All interventions used in our study are effective in increasing hamstring flexibility. Based on the Cohen's D effect size, an MG is beneficial to increase the AKE, whereas PNF CR technique is recommended for increasing PKE and flexibility.

• The Journal of Churna Manual Medicine for Spine and Nerves
• /
• v.6 no.2
• /
• pp.133-143
• /
• 2011

Objectives : The present study introduces the clinical application of Hamstring Chuna Manual Therapy to a patient who underwent the pain after spinal fusion. Methods : A patient who had the pain after spinal fusion was hospitalized at Bucheon Jaseng hospital of Oriental Medicine for 35 days. During the hospital treatment, the pain was relieved by Hamstring Chuna Manual Therapy. The improvement of the patient was measured by VAS(Visual Analogue Scale) score, SLR(Straight-Leg Raising) test, and walking distance. Results : The values of the patient's VAS score, SLR test, and walking distance measured before and after Hamstring Chuna Manual Therapy presented that the pain was relieved after Hamstring Chuna Manual Therapy. Conclusions : Therefore, this case demonstrates that Hamstring Chuna Manual Therapy is effective treatment method for relieving pain in the spine.