The aim of the work is to assess the effect of the menstrual cycle on the biomechanical properties of the muscles. The study will be conducted among young women aged 20-25 with a regular menstrual cycle. During the test, muscle strength and muscle flexibility as well as activation times will be performed. The study will assess the effect of the stretching of the hamstring muscles on the biomechanical properties of the muscles in the different phases of the menstrual cycle.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
500
Static stretching lasting 3 x 45 seconds will be performed in each of the examined women three times in different phases of the menstrual cycle: follicular, ovulatory and luteal. Before and after the intervention, a series of tests assessing the influence of stretching on biomechanical parameters will be carried out
Department of Kinesitherapy and Special Methods, SHS in Katowice, Medical University of Silesia, Katowice, Poland
Katowice, Silesian Voivodeship, Poland
RECRUITINGHamstring flexibility
Hamstring flexibility will be assessed using AKE and PKE and SLR tests.
Time frame: Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Hamstring flexibility
Hamstring flexibility will be assessed using AKE and PKE and SLR tests.
Time frame: Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Hamstring flexibility
Hamstring flexibility will be assessed using AKE and PKE and SLR tests.
Time frame: Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Passive Hamstring flexibility
Hamstring flexibility will be assessed using PKE test
Time frame: Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Passive Hamstring flexibility
Hamstring flexibility will be assessed using PKE test
Time frame: Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Passive Hamstring flexibility
Hamstring flexibility will be assessed using PKE test
Time frame: Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Active Hamstring flexibility
Hamstring flexibility will be assessed using SLR tests.
Time frame: Change measured before and immediately after static stretching during follicular phase of menstrual cycle
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Active Hamstring flexibility
Hamstring flexibility will be assessed using SLR tests.
Time frame: Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Active Hamstring flexibility
Hamstring flexibility will be assessed using SLR tests.
Time frame: Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Hamstring passive stifness
Hamstring stiffness will be assessed using TDK test. During the test the resistance of the elongated Hamstring muscle is measured. If the resistance value is smaller after the intervention it means that muscle stiffness changed.
Time frame: Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Hamstring passive stifness
Hamstring stiffness will be assessed using TDK test. During the test the resistance of the elongated Hamstring muscle is measured. If the resistance value is smaller after the intervention it means that muscle stiffness changed.
Time frame: Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Hamstring passive stifness
Hamstring stiffness will be assessed using TDK test. During the test the resistance of the elongated Hamstring muscle is measured. If the resistance value is smaller after the intervention it means that muscle stiffness changed.
Time frame: Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Trunk acivity is assessed using Stabilizer Pressure Biofeedback
The torso activation scheme is measured during lower and upper limb motions using Chattanooga Stabilizer Pressure Biofeedback.
Time frame: Three repetitions with a 30-second break between. The measure is taken during follicular phase of menstrual cycle
Trunk acivity is assessed using Stabilizer Pressure Biofeedback
The torso activation scheme is measured during lower and upper limb motions using Chattanooga Stabilizer Pressure Biofeedback.
Time frame: Three repetitions with a 30-second break between. The measure is taken during ovulation phase of menstrual cycle
Trunk acivity is assessed using Stabilizer Pressure Biofeedback
The torso activation scheme is measured during lower and upper limb motions using Chattanooga Stabilizer Pressure Biofeedback.
Time frame: Three repetitions with a 30-second break between. The measure is taken during luteal phase of menstrual cycle
Hamstring strength is tested using the Micro Fet Handheld Dynamometer.
Muscle strength of hamstring is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.
Time frame: Change measured before and immediately after static stretching. The measure is taken during follicular phase of menstrual cycle
Hamstring strength is tested using the Micro Fet Handheld Dynamometer.
Muscle strength of hamstring is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.
Time frame: Change measured before and immediately after static stretching. The measure is taken during ovulation phase of menstrual cycle
Hamstring strength is tested using the Micro Fet Handheld Dynamometer.
Muscle strength of hamstring is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.
Time frame: Change measured before and immediately after static stretching. The measure is taken during luteal phase of menstrual cycle
Strength of arm flexors and extensors and hip flexors is tested using the Micro Fet Handheld Dynamometer.
Muscle strength of arm flexors and extensors and hip flexors is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.
Time frame: Three repetitions for 5-7 seconds with two 30-second intervals . The measure is taken during follicular phase of menstrual cycle
Strength of arm flexors and extensors and hip flexors is tested using the Micro Fet Handheld Dynamometer.
Muscle strength of arm flexors and extensors and hip flexors is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.
Time frame: Three repetitions for 5-7 seconds with two 30-second intervals . The measure is taken during ovulation phase of menstrual cycle
Strength of arm flexors and extensors and hip flexors is tested using the Micro Fet Handheld Dynamometer.
Muscle strength of arm flexors and extensors and hip flexors is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.
Time frame: Three repetitions for 5-7 seconds with two 30-second intervals . The measure is taken during luteal phase of menstrual cycle