Clinical trial NCT04440878: The Acute Effects of Different Stretching Techniques
Official title: The Acute Effects of Different Hamstring Muscle Stretching Techniques on Reducing Muscle Resistance to Movement by Ultrasound Elastography
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Muscle Stretching Exercises
Hamstring Muscles
Keywords: Hamstrings
Stretching exercises
Ultrasound elastography
Lead sponsor: Yuksek Ihtisas University
Sponsor class: OTHER
First posted: 2020-06-22
Enrollment: 22
Sex: MALE
Minimum age (years): 18
Maximum age (years): 25
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The flexibility of the hamstring muscles is very important and many stretching methods are applied on the hamstring muscles for reducing muscle resistance on movement. The objective of this study was to investigate the acute effects of static stretching and the Mulligan traction straight leg raise (TSLR) technique administered to the hamstring muscles on reducing its resistance to movement by using ultrasound elastography in healthy individuals.

Detailed description: The study will be included 22 healthy male volunteers. Static stretching will be administered to the hamstring muscles in the first group and the Mulligan TSLR technique will be administered on the same muscle in the second group. Active knee extension angles of the individuals will be evaluated by a digital goniometer and muscle elasticity will be assessed by ultrasound elastography.

Acute effects of Mulligan TSLR on reducing muscle resistance to movement will be evaluated by ultrasound elastography for the first time in this study. In our study, it was planned to examine the acute effects of static stretching and Mulligan TSLR techniques on reducing muscle resistance to movement by ultrasound elastography in healthy individuals with hamstring shortness.

Eligibility criteria: Inclusion Criteria:

* Participants with short hamstring muscles (active knee extension angle below 70 degree),
* Without knee, hip, ankle, or waist pathology,
* Who had not undergone any surgery on the lower extremity were included in the study.

Exclusion Criteria:

* Individuals with musculoskeletal, neurological, or vestibular problems,
* Bone pathologies,
* Joint laxity,
* Diabetes,
* Metabolic syndrome,
* Arthritic or inflammatory problems were excluded.

Primary outcomes:
measure: The evaluation of muscle flexibility
timeFrame: Five minutes after the application
Secondary outcomes:
measure: Range of motion (ROM)
timeFrame: Five minutes after the application
Other outcomes:
Locations:
city: Ankara
country: Turkey
facility: Yuksek Ihtisas University
Study officials:
References:
citation: Cini A, de Vasconcelos GS, Lima CS. Acute effect of different time periods of passive static stretching on the hamstring flexibility. J Back Musculoskelet Rehabil. 2017;30(2):241-246. doi: 10.3233/BMR-160740.
citation: Kerkhoffs GM, van Es N, Wieldraaijer T, Sierevelt IN, Ekstrand J, van Dijk CN. Diagnosis and prognosis of acute hamstring injuries in athletes. Knee Surg Sports Traumatol Arthrosc. 2013 Feb;21(2):500-9. doi: 10.1007/s00167-012-2055-x. Epub 2012 May 24.
citation: Rancour J, Holmes CF, Cipriani DJ. The effects of intermittent stretching following a 4-week static stretching protocol: a randomized trial. J Strength Cond Res. 2009 Nov;23(8):2217-22. doi: 10.1519/JSC.0b013e3181b869c7.
citation: Yildirim MS, Ozyurek S, Tosun O, Uzer S, Gelecek N. Comparison of effects of static, proprioceptive neuromuscular facilitation and Mulligan stretching on hip flexion range of motion: a randomized controlled trial. Biol Sport. 2016 Mar;33(1):89-94. doi: 10.5604/20831862.1194126. Epub 2016 Feb 8.
citation: Umegaki H, Ikezoe T, Nakamura M, Nishishita S, Kobayashi T, Fujita K, Tanaka H, Ichihashi N. Acute effects of static stretching on the hamstrings using shear elastic modulus determined by ultrasound shear wave elastography: Differences in flexibility between hamstring muscle components. Man Ther. 2015 Aug;20(4):610-3. doi: 10.1016/j.math.2015.02.006. Epub 2015 Mar 2.