View clinical trials related to Flexibility.
Filter by:In general, the strength training on unstable surfaces has a positive impact on strength performance, power and stability compared to not training. As described above, previous studies have shown that self-myofascial release has a positive effect by improving flexibility, but its effect on balance is still debated. Myofascia contains numerous sensory nerves related to proprioceptive and mechanical receptors such as Golgi receptors or Pacini receptors. Therefore, the pressure applied during the self-myofascial release intervention can stimulate these mechanoreceptors and enhance the proprioceptive information integrated by the central nervous system to adjust the activation level of motor units. The aim of this study is to examine the effects of myofascial release applied to the thoracolumbar fascia on flexibility, muscular endurance and balance in healthy young adults.
Standing, stooping and crouching are considered important physical demands of the work, which are among the 20 physical work demands defined in the Dictionary of Occupational Titles(1, 2). Agricultural workers, underground miners, aircraft baggage handlers, plumbers, mechanics and many other workers adopt these postures(3-7). These postures are also used in daily activities such as gardening, shopping andcleaning(8).Standing describes an upright position without moving(2). Maintaining this position requires sustained musclea ctivity in various muscles of the body known as the antigravity muscles(9). Stooping consists of bending the torso forward and down with the legs in a relatively straight position. Crouching is an activity performed with the flexion of the hip, knee and ankle while the trunk is in a vertical position. During stooping, the lower back and posterior leg muscles are stretched. Crouching involves similar length changes, particularly in the quadriceps and ankle plantar flexor muscles, as a result of significant flexion in the knee and ankle joints.Unlike standing, as the hip and knee joints are fully flexed during crouching, activation of the quadriceps and calf muscles is potentially required to support lower extremities and weight transfer between limbs(10). Consideration of the flexibility defined as the maximum range of motion, and the muscular strength associated with the amount of external force a muscle can exert(11, 12), may provide a different perspective to the health care professionals during the interpretation of the work or daily activities. Knowing the relationship between standing, stooping and crouching performances with the direct measurement methods such as flexibility and strength may help to make a more accurate decision during the health care assessments and guiding individuals who have difficulties in these activities to the appropriate rehabilitation program. Starting from this point of view, in this study, we aimed to evaluate the relationship between flexibility and muscular strength tests with standing, stooping and crouching performances.
The hamstrings muscles are examples of muscle groups that have a tendency to shorten. Limited flexibility has been shown to predispose a person to several musculoskeletal overuse injuries and significantly affect a person's function.
Sixty healthy individuals will be randomised into four groups. Group I (15 subjects) will be applied hotpacks, Group II (15 subjects) will be applied infrared, Group III will be applied ultrasound to hamstring muscles for 18 sessions 3 times per week and the subjects will do hamstring self stretching exercise 3 times for 15 seconds. Group IV will only do self stretching exercises. Outcome measures are Range of Motion and hamstring flexibility. Measurements will record before and after the end of the treatment.
PURPOSE: this study aimed to investigate the effect of opposite knee position on hamstring flexibility BACKGROUND Hamstrings tightness is one of the most common findings in patients with LBP. It is thought that, due to the attachments of hamstrings to the ischial tuberosity, hamstrings tightness generates posterior pelvic tilt and decreases lumbar lordosis, which can result in LBP. HYPOTHESES There will be significant difference in the hamstring flexibility with changing position of opposite knee (flexed or extended) in patients with mechanical low back pain. RESEARCH QUESTION: Will changing position of opposite knee (flexed or extended) affect the hamstring flexibility in patients with mechanical low back pain?
In this randomized trial, the aim of study is compare acute and chronic effect of Proprioceptive Neuromuscular Facilitation stretching and static stretching in individuals with shortness hamstring in proprioception and performance. The primary outcome measurement is proprioception (position sense and motion sense), the secondary outcome measurements are physical performance evaluations. All exercises will be performed by the same physiotherapist in 8 weeks and 3 times a week. Exercises will be performed bilaterally and data from the dominant lower extremity will be used in the analysis. Exercises and assessments to reduce the effects of circadian variation will be performed at the same times during the research.
Investigator investigated that regression of hamstring flexibility and performance in children with Duchenne Muscular Dystrophy.
The investigator investigated the effect of lower limb flexibility on functional performance of children with Duchenne Muscular Dystrophy.
Treatment or training of fascial tissues has moved into the focus of medical research in the last decade. In this context, the use of foam rollers or roller massagers for self-myofascial-release (SMR) techniques has become increasingly popular in health and fitness professionals. The primary objective of these techniques is to mimic manual massage or myofascial-release therapy with a self-usable tool. Recent studies suggest that SMR improves, inter alia, range of motion (ROM) without a decrease in neuromuscular performance (Cheatham et al. 2015). Concurrent effects on the muscle and especially the surrounding connective tissue network have been proposed as underlying mechanisms for these observed changes in ROM after SMR. Several authors assume a positive effect of SMR on sliding properties of different independent fascial layers. Also, changes in passive tissue stiffness is suggested. Passive stiffness is thereby characterized by passive resistance in the tissues' (muscles') functional direction, the passive resistive torque (PRT). In conclusion, for many of the proclaimed effects of SMR, such as improvements of sliding of fascial layers or decreases of passive stiffness, there is a lack of evidence in the literature. Therefore, the aim of the study is to evaluate acute effects of SMR on the viscoelastic properties of the muscles on the anterior thigh and the corresponding fascia. In a cross over design, 16 subjects receive all of the following interventions after a familiarization session: a) 2x60 seconds of SMR at the anterior thigh, b) 2x60 seconds of static stretching at the anterior thigh, c) no intervention in a balanced permutated randomization sequence. Before and directly after each intervention, outcome parameters are collected. Passive Resistive Torque is evaluated using a computerized isokinetic dynamometer. In passive mode, the lower leg is moved from full knee extension (0°) to the point of maximal knee flexion with a velocity of 5°/s. Torque and angle are recorded at 100 Hertz (Hz). Sliding of fascial layers is quantified with a frame-by-frame cross correlation algorithm of high-resolution ultrasound images (Dilley et al. 2001). First stretch sensation is quantified using the passive mode in the isokinetic dynamometer. Maximal ROM is detected using a an ultrasonographic movement analysis system in a prone position.
This study investigates the influence of two different stretching techniques on the flexibility of the muscles that are in the posterior thigh, after a training period. The study will last for six weeks where the volunteers need to go to the lab twice for evaluation, and for four weeks, three times a week for the application of stretching training. Evaluation before and after the training period consists of applying hip and knee flexibility tests, evaluation of strength, muscle activation and muscle architecture. The Flexibility tests are: (1) Straight Leg Raise Flexibility Test (SLR), where the volunteer will be positioned supine on a stretcher. Then the appraiser will perform hip flexion keeping the knee extended and relaxed foot to the angle at which the person refer discomfort while the contralateral limb remain firmly leaning on the table; (2) Modified Passive knee extension (TEJ), where the volunteer will be positioned supine on a stretcher. The assessor shall determine the hip member to be rated at 90º and perform knee extension to the angle at which the person refer discomfort. The contralateral limb remain firmly leaning on the table. For the evaluation of muscle strength the volunteer had sat on equipment, makes five repetitions of bending and straightening the knee to familiarize yourself with the equipment and after will make other five replicates doing maximum strength. To evaluate the electrical activity will be the depilation of the skin with a razor and cleaning with an alcohol swab after adhesive electrodes will be placed for collection of muscle activity, the electrodes do not emit shocks. The muscle architecture will be assessed via a ultrasound , to its use the use of a water soluble gel to improve the machine's skin contact is required. For the intervention, the stretching will be held in both legs, where the volunteer will remain lying on a stretcher with fixed trunk with velcro straps and the researcher will carry out the elongation raising the leg drawn to the moment of discomfort the volunteer will refer and will remain for 30 seconds (s) in case he belongs to passive static stretching group, if the stretching group of proprioceptive neuromuscular facilitation, will be in the same position, but before the 30s of stretching, he you will have to push against during 6s to lower leg against the researcher. If he belongs to the control group, have only two trips to the laboratory for testing, will make an initial assessment and after four weeks will return to perform the tests again, in the period between assessments will not need to go to the lab because it does not make intervention elongation. It is possible that there discomfort during flexibility testing, strength testing and stretching training. After the tests can still experience muscle pain should disappear within 48 hours. The risks of research are minimal, not exceeding those of a strength training session and stretching.