족저근막 스트레칭이 척추기립근 및 슬굴곡근의 긴장도에 미치는 영향

신동재 ( Dong Jae Shin ),신현대 ( Hyun Dae Shin ),정석희 ( Seok Hee Chung ) 한방재활의학과학회 2005 한방재활의학과학회지 Vol.15 No.4

Objectives : The meridian muscle theory is similar to the myofascial meridian theory. According to the myofascial meridian theory, muscle tension can travel from one part of the body to the other part though the fascia. We assumed that the same theory can be applied to the meridian muscle. So we hypothesize that stretching of plantar fascia, a part of Chok-t`aeyang meridian muscle, will effect the tension of erector spinae muscle and hamstring muscle which is the other part of Chok-t`aeyang meridian muscle. Methods : 30 persons with neither spinal disorder nor back pain were randomized into two groups : 16 samples and 14 controls. Every person measured finger-to-floor method(FFM) distance, C7-S1 process distance, and left and right passive leg straight raising(SLR) angle. In the sample group, plantar fascia was stretched for 5 minites. In the control group, plantar fascia was not stretched. 5 minutes later, every person had taken a measurement as previously measured. Results : In the both sample and control group, muscle tension of erector spinae muscle and left and right hamstring muscle had significantly decreased. And in the sample group, muscle tension of erector spinae muscle and left and right hamstring muscle had more significantly decreased than in the control group. Conclusions : Muscle tension can travel from one part of the body to the other part of the body though the meridian muscle.

Analysis of Changes in Muscle Tone, Stiffness, and Flexibility of Hamstring Muscle according to the Frequency of Self- Myofascial Release Using a Foam Roller

왕중산,김년준 국제물리치료연구학회 2024 Journal of International Academy of Physical Ther Vol.15 No.1

Background: Self-myofascial release using a foam roller has short-term effects for improving muscle function and joint range of motion (ROM) and reducing delayed onset muscle soreness (DOMS) after exercise. Objectives: The purpose of our study was to examine the muscle physiological changes for each set in self-myofascial release of the hamstring muscles using a foam roller in order to provide basic data for the most effective program composition for improving muscle tension, stiffness, and flexibility of the hamstring muscles. Design: A quasi-experimental clinical trial. Methods: To confirm the effect of self-myofascial release of the hamstring muscles using a foam roller, muscle tone and stiffness of the hamstring muscles were measured. As an intervention method, the study subject performed four sessions of self-myofascial release by moving a foam roller back and forth on the posterior thigh muscle of the right leg. Results: There were statistically significant changes in the stiffness of the biceps femoris and the flexibility of the hamstring muscles. Conclusion: Self-myofascial release with foam rolling is an effective intervention method for increasing hamstring flexibility and ROM, and it is recommended as effective to perform self-myofascial release for three to four sessions to maintain normal muscle tone and stiffness of the hamstring muscles.

뒤넙다리근의 자가 신장운동 방법에 따른 유연성과 근탄성의 변화

박소라,노효련 대한물리의학회 2023 대한물리의학회지 Vol.18 No.4

PURPOSE: The purpose of this study was to investigate the changes in the flexibility and elasticity of the muscles when the hamstrings were stretched in one direction and when they were stretched in three directions. METHODS: In this study the subjects were divided into two groups, namely the ‘one-direction stretching exercise of the hamstring muscle in the neutral position’ group (female: 14 people, male: 14 people) and the ‘three-way stretching exercise’ group (female: 12 people, male: 14 people) considering the positions of the three hamstring muscles. The elasticity and flexibility of the hamstring muscles were measured before and after the self-extension exercise, and the average value of two measurements was noted. To evaluate the flexibility of the hamstring muscle, a ‘sit and reach’ test was performed, and muscle elasticity was measured using the MyotonPRO® device. RESULTS: After the stretching exercise, flexibility increased in both groups. In terms of muscle elasticity, the body dynamic strength and resonance frequency of the stretching one-direction stretching group decreased after the stretching exercise. CONCLUSION: To alter the muscle characteristics and increase the flexibility when performing a stretching exercise, selecting and stretching only one muscle with the lowest range of motion yields effective results. The ideal technique to be employed appears to be to stretch the entire hamstring muscle in one direction from the neutral position.

Effect of High-frequency Diathermy on Hamstring Tightness

Ye Jin Kim,Joo-Hee Park,Ji-hyun Kim,Gyeong Ah Moon,Hye-Seon Jeon 한국전문물리치료학회 2021 한국전문물리치료학회지 Vol.28 No.1

Background: The hamstring is a muscle that crosses two joints, that is the hip and knee, and its flexibility is an important indicator of physical health in its role in many activities of daily living such as sitting, walking, and running. Limited range of motion (ROM) due to hamstring tightness is strongly related to back pain and malfunction of the hip joint. High-frequency diathermy (HFD) therapy is known to be effective in relaxing the muscle and increasing ROM. Objects: To investigate the effects of HFD on active knee extension ROM and hamstring tone and stiffness in participants with hamstring tightness. Methods: Twenty-four participants with hamstring tightness were recruited, and the operational definition of hamstring tightness in this study was active knee extension ROM of below 160° at 90° hip flexion in the supine position. HFD was applied to the hamstring for 15 minutes using the WINBACK device. All participants were examined before and after the intervention, and the results were analyzed using a paired t-test. The outcome measures included knee extension ROM, the viscoelastic property of the hamstring, and peak torque for passive knee extension. Results: The active knee extension ROM significantly increased from 138.8° ± 9.9° (mean ± standard deviation) to 143.9° ± 10.4° after the intervention (p < 0.05), while viscoelastic property of the hamstring significantly decreased (p < 0.05). Also, the peak torque for knee extension significantly decreased (p < 0.05). Conclusion: Application of HFD for 15 minutes to tight hamstrings immediately improves the active ROM and reduces the tone, stiffness, and elasticity of the muscle. However, further experiments are required to examine the long-term effects of HFD on hamstring tightness including pain reduction, postural improvement around the pelvis and lower extremities, and enhanced functional movement.

운동생리학 : 체중감량이 고등학교 태권도 선수의 등속성 최대근파워와 근지구력에 미치는 영향

박익렬(IkRyeulPark),김은경(EunKyungKim),강현주(HyunJooKang),김경배(KyoungBaeKim),박성태(SungTaePark),엄우섭(WooSeopEom),정덕조(DeogJoJung) 한국체육학회 2004 한국체육학회지 Vol.43 No.5

This study examines effects of rapid weight reduction on isokinetic maximal muscle power and muscle endurance in high school aged taekwondo players on 10 trained males. The methods of Weight reduction is selected exercise, diet, and sauna on 5% self weight. The test performed 60°/sec on isokinetic maximal muscle power and 180°/sec on muscle endurance using isokinetic machine. Variables are peak torque(PT), peak torque/body weight(FT/BW), total work(TW), Hamstring/Quadriceps ratio(H/Q ratio). The results of this study are as follows :After weight control during a week on isokinetic maximal muscle power, FT showed significant change on left knee extensor(p<.05), PT/BW showed significant change on right and left knee extensor(p<.05), and TW showed no significant change on knee extensor. Isokinetic maximal muscle power, FT showed significant change on right and left knee flexor(p<.05), PT/BW showed significant change on right knee flexor(p<.05), and TW showed significant change on right knee flexor(p<.05). Muscle endurance, FT showed significant change on right(p<.05) and left knee extensor(p<.01), PT/BW showed significant change on left knee extensor(p<.05), and TW showed no significant change on knee extensor. Muscle endurance, FT showed significant change on left knee flexor(p<.05), PT/BW showed significant change on right and left knee flexor(p<.05), and TW showed significant change on left knee flexor(p<.05). H/Q ratio, showed no significant change on isokinetic maximal muscle power(60°/sec) and muscle endurance(180˚/sec).In conclusion, reduced weight through methods of exercise, diet and sauna decreased significantly on ability of isokinetic maximal muscle power and muscle endurance in taekwondo players.

Acute Effects of Self-Myofascial Release Using Various Foam Rollers on Knee Extension Angles and Hamstring Muscle Tone in Subjects with Shortened Hamstrings: A Randomized Controlled Trial

김민지,이지현,류전남 한국신경근육물리치료학회 2022 한국신경근육재활학회지 Vol.12 No.3

This study aimed to compare the effects of hamstring self-myofascial release using three different foam rollers on the passive and active angles of knee extension and hamstring muscle tone in subjects with shortened hamstrings. Twenty subjects with shortened hamstrings were included. The passive and active knee extension angles and hamstring muscle tone were measured immediately after each self-myofascial release of the hamstring muscles using a soft-, hard-, or grid-type foam roller. A goniometer was used to measure the passive and active knee extension angles, while a Myoton PRO was used to measure the hamstring muscle tone. The passive and active knee extension angles significantly increased and the hamstring muscle tone significantly decreased after all interventions (p<.05). However, none of the dependent variables differed significantly among the three groups (p>.05). All soft-, hard-, and grid-type foam rollers effectively improved hamstring flexibility and muscle tone in subjects with shortened hamstrings. Our findings suggest that individuals should choose the foam roller that is comfortable for them.

Immediate Effects of Release Ball Massage and Self-stretching Exercise on Hamstring's Temperature, Range of Motion and Strength in 20's Women

Jeong, Younghun,Park, Jihwan,Yu, Jin,Lee, Sunyeong,Ha, Jihee,Choo, Yeonki,Oh, Taeyoung International Academy of Physical Therapy Research 2019 Journal of International Academy of Physical Ther Vol.10 No.1

Background: There have been many studies on self-myofascial release (SMR) stretching, but there are few comparative studies on the effects of massages using a release ball, which is a type of the SMR method. Objective: To investigate the immediate effects of release ball massage and self-stretching on proprioceptive sensory, hamstring's temperature, range of motion (ROM) muscle strength,. Design: Crossover study. Methods: Thirty women in 20's at S University in Busan voluntarily participated in the study. Participants were random to release ball group (n=15) or self-stretching group (n=15). Both groups performed 3 sets of exercises, stretching for 30 seconds and resting for 15 seconds in each position. The proprioceptive sensory, temperature of the hamstring muscle, ROM, and strength were measured before exercise, 5 minutes after exercise, and 30 minutes after exercise. Results: Release ball group showed significant differences in muscle length and temperature over time (p<.05). The comparison between two group over time showed significant differences in muscle length, temperature, and muscle strength (p<.05). Conclusions: These results demonstrate that release ball massage and self-stretching are beneficial for improving hamstring's temperature, ROM and muscle strength.

Immediate Effects of Release Ball Massage and Self-stretching Exercise on Hamstring’s Temperature, Range of Motion and Strength in 20’s Women

Younghun Jeong,Jihwan Park,Jin Yu,Sunyeong Lee,Jihee Ha,Yeonki Choo,Taeyoung Oh 국제물리치료연구학회 2019 Journal of International Academy of Physical Ther Vol.10 No.1

Background: There have been many studies on self-myofascial release (SMR) stretching, but there are few comparative studies on the effects of massages using a release ball, which is a type of the SMR method. Objective: To investigate the immediate effects of release ball massage and self- stretching on proprioceptive sensory, hamstring’s temperature, range of motion (ROM) muscle strength,. Design: Crossover study. Methods: Thirty women in 20’s at S University in Busan voluntarily participated in the study. Participants were random to release ball group (n=15) or selfstretching group (n=15). Both groups performed 3 sets of exercises, stretching for 30 seconds and resting for 15 seconds in each position. The proprioceptive sensory, temperature of the hamstring muscle, ROM, and strength were measured before exercise, 5 minutes after exercise, and 30 minutes after exercise. Results: Release ball group showed significant differences in muscle length and temperature over time (p<.05). The comparison between two group over time showed significant differences in muscle length, temperature, and muscle strength (p<.05). Conclusions: These results demonstrate that release ball massage and selfstretching are beneficial for improving hamstring's temperature, ROM and muscle strength.

연부조직가동술, 수동신장운동과 근에너지 기법이 넙다리뒤근육의 근두께와 근 긴장도에 미치는 영향

김주윤,심재훈,한현규 한국신경근육물리치료학회(구 한국신경근육재활학회) 2018 한국신경근육재활학회지 Vol.8 No.2

This study aimed to identify alterations in the thickness of the hamstring and the muscle tone in response to soft tissue mobilization (STM), passive stretching (PS), and muscle energy technique (MET). Forty-five male subjects with no orthopedic or neurological diseases volunteered to participate in the study, which were allocated either the SEM, PS, or MET groups, 10 in each. Outcome measure included the thickness and muscle tone of the hamstring. Intervention was an isometric contraction and 10-sec stretching for the STM group, a 10 repetitions of 10-sec stretch for the PS group, and an isometric contraction and relaxation for the MET group. Pre- and post-treatment changes in the thickness and muscle tone of hamstring were significantly different for the three groups (p<.05). However, there were not found statistically significant differences in the thickness and muscle tone of hamstring between the groups (p>.05). This study suggests that all tree methods may be helpful to increase the condition of hamstring. Further studies with robust design will be needed for the generality of our results.

Immediate Effects of Release Ball Massage and Self-stretching Exercise on Hamstring’s Temperature, Range of Motion and Strength in 20’s Women

정영훈,박지환,이선영,유 진,하지희,추연기,오태영 국제물리치료연구학회 2019 Journal of International Academy of Physical Ther Vol.10 No.1

Background: There have been many studies on self-myofascial release (SMR) stretching, but there are few comparative studies on the effects of massages using a release ball, which is a type of the SMR method. Objective: To investigate the immediate effects of release ball massage and self- stretching on proprioceptive sensory, hamstring’s temperature, range of motion (ROM) muscle strength,. Design: Crossover study. Methods: Thirty women in 20’s at S University in Busan voluntarily participated in the study. Participants were random to release ball group (n=15) or selfstretching group (n=15). Both groups performed 3 sets of exercises, stretching for 30 seconds and resting for 15 seconds in each position. The proprioceptive sensory, temperature of the hamstring muscle, ROM, and strength were measured before exercise, 5 minutes after exercise, and 30 minutes after exercise. Results: Release ball group showed significant differences in muscle length and temperature over time (p<.05). The comparison between two group over time showed significant differences in muscle length, temperature, and muscle strength (p<.05). Conclusions: These results demonstrate that release ball massage and selfstretching are beneficial for improving hamstring's temperature, ROM and muscle strength.