Influence of stretching velocity on musculotendinous stiffness of the hamstrings during passive straight-leg raise assessments

2017 ◽  
Vol 30 ◽  
pp. 80-85 ◽  
Author(s):  
Ty B. Palmer ◽  
Nathaniel D.M. Jenkins ◽  
Brennan J. Thompson ◽  
Joel T. Cramer
Author(s):  
Eun-Dong Jeong ◽  
Chang-Yong Kim ◽  
Nack-Hwan Kim ◽  
Hyeong-Dong Kim

BACKGROUND: The cranio-cervical flexion exercise and sub-occipital muscle inhibition technique have been used to improve a forward head posture among neck pain patients with straight leg raise (SLR) limitation. However, little is known about the cranio-vertebral angle (CVA) and cervical spine range of motion (CROM) after applying stretching methods to the hamstring muscle. OBJECTIVE: To compare the immediate effects of static stretching and proprioceptive neuromuscular facilitation stretching on SLR, CVA, and CROM in neck pain patients with hamstring tightness. METHODS: 64 subjects were randomly allocated to the static stretching (n1= 32) or proprioceptive neuromuscular facilitation (n2= 32) stretching group. The SLR test was performed to measure the hamstring muscle’s flexibility and tightness between the two groups, with CROM and CVA also being measured. The paired t-test was used to compare all the variables within each group before and after the intervention. The independent t-test was used to compare the two groups before and after the stretching exercise. RESULTS: There were no between-group effects for any outcome variables (P> 0.05). However, all SLR, CVA, and CROM outcome variables were significantly improved within-group (P< 0.05). CONCLUSIONS: There were no between-group effects for any outcome variable; however, SLR, CVA, and CROM significantly improved within-group after the one-session intervention in neck pain patients with hamstring tightness.


2020 ◽  
Vol 24 (04) ◽  
pp. 193-199
Author(s):  
Kevin Maliszewski ◽  
David Snowdon ◽  
Harry von Piekartz ◽  
Dirk Möller

ZusammenfassungEine Nackenflexion beeinflusst nachweislich die Mechanosensibilität von neurodynamischen Testungen der unteren Extremität. In der Literatur wird diskutiert, ob sich dieses Phänomen durch eine erhöhte (intraneurale) Spannung des Nervengewebes und/oder einen protektiven Reflexmechanismus des motorischen Systems erklären lässt. Bislang konnte kein protektiver Mechanismus in Form einer modifizierten muskulären Rekrutierung als mechanosensibler Parameter zwischen der passiven Nackenflexion und der unteren Extremität gemessen werden.Alle in diese Querschnittsstudie eingeschlossenen 30 asymptomatischen, männlichen Probanden führten den neurodynamischen Straight-Leg-Raise-Test und Slump-Test durch. Um einen möglichen Einfluss der passiven Nackenflexion auf die muskuläre Rekrutierung der unteren Extremität festzustellen, wurden während dieser sensibilisierenden Bewegung die muskuläre Rekrutierung und das Bewegungsausmaß mittels Elektromyografie und Inertialsensorik (kinematische Messtechnik) gemessen.Die Studienergebnisse bestätigten einen segmentübergreifenden Einfluss der passiven Nackenflexion auf die muskuläre Rekrutierung der unteren Extremität. Deren Muster deuten möglicherweise auf einen protektiven muskulären Mechanismus in endgradigen neurodynamischen Positionen hin.


2021 ◽  
Vol 160 (6) ◽  
pp. S-451-S-452
Author(s):  
Wei-Yi Lei ◽  
Shu-Wei Liang ◽  
Taher Omari ◽  
Jui-Sheng Hung ◽  
Ming-Wun Wong ◽  
...  

Author(s):  
Kensuke Oba ◽  
Mina Samukawa ◽  
Yosuke Abe ◽  
Yukino Suzuki ◽  
Miho Komatsuzaki ◽  
...  

The different effects of intermittent and continuous stretching on the mechanical properties of the musculotendinous complex have been unclear. This study aimed to compare the effects of intermittent and continuous stretching for the same duration on the range of motion (ROM), passive resistive torque (PRT), and musculotendinous stiffness (MTS) of ankle plantar flexors. Eighteen healthy young men participated in the study. Intermittent (four sets × 30 s) and continuous stretching (one set × 120 s) were performed in random orders on two separate days. Both stretching protocols were conducted using a dynamometer with a constant torque applied. ROM and PRT were determined using a dynamometer, and MTS was calculated using the torque–angle relationship measured before and after stretching. Two-way repeated measures analysis of variance was performed for all parameters. Both intermittent and continuous stretching significantly increased ROM and decreased PRT and MTS (p < 0.05). Intermittent stretching led to greater changes in ROM and PRT than continuous stretching. However, the reduction in MTS did not differ between the two conditions. These results suggest that intermittent stretching is more effective in increasing ROM and changing the mechanical properties of the musculotendinous complex.


2019 ◽  
Vol 6 (2) ◽  
pp. 1
Author(s):  
Hendra Rustiawan ◽  
Ruli Sugiawardana ◽  
Muhammad Nurzaman

Penelitian ini bertujuan untuk memberikan informasi tentang  instrument test yang berfungsi untuk mengukur komponen kondisi fisik mobilitas, keseimbangan, dan stabilitas atlet yang mengalami atau yang sudah pernah terkena cedera otot dan tulang sendi. Komponen tes FMS terdiri dari in-line lunge, hurdle step, deep squat, shoulder mobility, active straight-leg raise, trunk stability push-up, rotary stability Berbagai hasil penelitian menunjukkan bahwa: (1) adanya hubungan antara atlet yang mengalami cedera otot dengan tes FMS, (2) tidak adanya hubungan, dan (3) adanya hubungan yang signifikan pada atlet yang mengalami cedera terhadap mobilitas, keseimbangan, dan stabilitas yang diukur dengan FMS, dan  (4) adanya pengaruh tes tersebut akan tetapi dengan sampel tertentu (usia). Hal ini dapat disimpulkan bahwa bahwa perlunya  dilakukan penelitian ulang dengan memperhatikan berbagai aspek (usia, jenis kelamin, dan profesi). Hal tersebut diharapkan FMS dapat digunakan pada penelitian kondisi fisik (strength and conditioning)


Sign in / Sign up

Export Citation Format

Share Document