• The Journal of Korean Physical Therapy
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• 제5권1호
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• pp.3-8
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• 1993

The purpose of this study was to investigate the specificity of the effort of massage on hamstring muscles extensibility a9 measured by fingertip to floor test. The participant were healthy young men(n=25). Manual massage was applied to the posterior aspects of the both thigh (hamsting portion) during 20 mins. We measured four times ; that is, after rest 20 mins-before massage, immediately after massage, immediately after massage and 20 mins. after massage. As the middle fingers are reaching beyond the floor level, the level was considered as ( + ) level. And the middle fingers did not touch the 리oor, the level was considered as ( - ) level. Results were as fellows : 1) There was significant difference between group 1 and group 2(P<0.05), 2) There was no significant difference between group 2 and group 3(P>0.05). 3) There was no significant difference between group 3 and group 4(P>0.05). Therefore, the extensibility of hamstring muscles was increased after massage more than rest during 20 mins, before massage, and the effects of massage application were prolonged during 20 mins, after massage.

• 한국전문물리치료학회지
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• 제1권1호
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• pp.55-60
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• 1994

Thirty healthy adults aged 20 to 29 with no history of musculoskeletal or neurogenic disorder volunteered for this study. The contract-relax with agonist contration(CRAC) was applied to the right hamstring muscles with the subject in the supine position. Each hamstring group was stretched on three sucessive days with several repetitions of the technique lasting 1min, 3min, and 5min. respectively. Hamstring extensibility at the knee(ROM) was measured before and after stretching using on electronic digital inclinometer(EDI). The results, namely the increase in ROM, were analysed using one-way repeated ANOVA at p<0.05. The differences were not significant. Possible factors influencing the results are excessive sensitibility of the measuring instrument, the psychological and physical status of the subjects, and the level of muscle fatigue. The mean increases in ROM were 3.0 at 1min., 2.6 at 3min, and 2.1 at 5min. Inclusion of a control group would have further defined the effects of the stretching technique.

• 대한물리치료과학회지
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• 제30권1호
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• pp.31-40
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• 2023

Hamstring flexibility is an important factor that affects muscle performance of the lower extremities and is closely associated with sports injuries. Therefore, evaluation of flexibility is important in clinical practice. Results of evaluation are determined by types of tests and cut-off values used; therefore, accurate and detailed understanding of these is necessary before examination. Although the straight leg raise and sit and reach tests are used to evaluate hamstring extensibility, structures including the nerves, fascia, and other muscles can significantly confound the results of these tests. The knee extension test is performed at 90° of hip flexion to minimize the posterior pelvic tilt that occurs during the straight leg test. The knee extension test is most recommended for selective evaluation of hamstring flexibility. The knee extension test is classified into active and passive tests. The cut-off value is usually set at 20° for the active and at 10° for the passive knee extension test. Although a strong association is observed between the two tests, the active knee extension test is preferred in clinical practice because it can be performed by a single examiner, which serves as an advantage. Age, sex, and warm-up exercise tend to affect flexibility; therefore, results should be interpreted with caution. Detailed understanding of each flexibility test is important for reliable evaluation.