Crossover effects of ultrasound-guided percutaneous neuromodulation on contralateral hamstring flexibility

2020 ◽  
pp. 096452842092028
Author(s):  
Blanca De-la-Cruz-Torres ◽  
Carlos Carrasco-Iglesias ◽  
Francisco Minaya-Muñoz ◽  
Carlos Romero-Morales
Keyword(s):  
Muscle Activation ◽  
Lower Limbs ◽  
Post Intervention ◽  
Crossover Effects ◽  
Hip Range Of Motion ◽  
Before And After ◽  
Hamstring Flexibility ◽  
The Right ◽  
Sliding Technique ◽  
Straight Leg Raise

Background Crossover effects refer to the responses of a non-exercised contralateral limb. There is evidence of this effect, as it relates to muscle fatigue, strength, and stretch, but not as it relates to neuromodulation. Objectives To compare the crossover effects of percutaneous neuromodulation (PNM) on hip range of motion (ROM), observed in a straight leg raise (SLR) test, in asymptomatic participants with bilateral reduced hamstring flexibility, versus the neurodynamic sciatic sliding technique, hamstring stretching and mechanical stimulation of the sciatic nerve using a needle (without electrical stimulation). To evaluate the tensiomyographic changes between the two lower limbs after these interventions. Methods 80 participants with bilateral reduced hamstring flexibility were randomized into four groups: Stretching, Neurodynamic, PNM, and Needle groups. All interventions were performed on the right limb. Each participant’s leg was subjected to SLR testing and tensiomyography before and after the interventions. Results Each group improved their SLR values in the non-intervention limb compared to baseline values, but the PNM and Needle groups obtained higher values for the SLR test in the non-intervention limb compared with the Neurodynamic and Stretching groups. There were statistically significant differences for mean SLR measures between limbs pre- and post-intervention for all groups except the PNM group, suggesting crossover effects for PNM but not the other techniques studied. There were no differences in tensiomyographic assessments between groups or between sides, at baseline or upon completion of the study. Conclusion PNM produced benefits in the SLR test in the non-intervention limb and only 1.5 min was enough to obtain this effect. In addition, no technique interfered with muscle activation.

scholarly journals Effect of Cable Cerclage on Regional Blood Circulation in Rabbits: A Scintigraphic Study

2016 ◽  
Vol 24 (3) ◽  
pp. 367-369 ◽  
Author(s):  
Ozgur Karakoyun ◽  
Ertan Sahin ◽  
Mehmet Fatih Erol ◽  
Mesut Kariksiz ◽  
Metin Kucukkaya
Keyword(s):  
Blood Circulation ◽  
Kirschner Wire ◽  
Blood Perfusion ◽  
Medullary Canal ◽  
Post Intervention ◽  
Left Femur ◽  
Femoral Cortex ◽  
Before And After ◽  
The Mean ◽  
The Right

Purpose To evaluate changes in blood circulation of the femoral cortex in rabbits using scintigraphy before and after cable cerclage alone or combined with an intramedullary Kirschner wire. Method Ten New Zealand rabbits were used. For the right femur, a 2-mm-thick cable was placed around the mid-diaphyseal region and squeezed with a 400-N force and locked with a clip. For the left femur, a 1.8-mm Kirschner wire was inserted retrogradely into the medullary canal, and a 2-mm-thick cable was applied using the same technique. The blood perfusion ratio of the region of interest (ROI) before and after surgery was evaluated using scintigraphy. Results For the right femurs, the mean ROI perfusion ratio decreased by 45% from 2.51 to 1.37 after intervention (p=0.001). For the left femurs, the mean ROI perfusion ratio decreased by 56% from 2.12 to 0.92 after intervention (p<0.001). The mean ROI perfusion ratio post-intervention was higher in the right than left femurs (p=0.017). Conclusion Cable cerclage around the femoral cortex significantly decreased blood circulation in the area.

Strength training the free limb attenuates strength loss during unilateral immobilization

2009 ◽  
Vol 106 (3) ◽  
pp. 830-836 ◽  
Author(s):  
Jonathan P. Farthing ◽  
Joel R. Krentz ◽  
Charlene R. A. Magnus
Keyword(s):  
Strength Training ◽  
Muscle Activation ◽  
Muscle Thickness ◽  
Strength Loss ◽  
Peak Torque ◽  
Ulnar Deviation ◽  
Before And After ◽  
Cross Education ◽  
The Right ◽  
Arm Strength

The objective was to determine if strength training the free limb during a 3-wk period of unilateral immobilization attenuates strength loss in the immobilized limb through cross-education. Thirty right-handed participants were assigned to three groups. One group ( n = 10) wore a cast and trained the free arm (Cast-Train). A second group ( n = 10) wore a cast and did not train (Cast). A third group ( n = 10) received no treatment (control). Casts were applied to the nondominant (left) wrist and hand by a physician. Strength training was maximal isometric ulnar deviation (right hand) 5 days/wk. Peak torque (dynamometer), electromyography (EMG), and muscle thickness (ultrasound) were assessed in both arms before and after the intervention. Cast-Train improved right arm strength [14.3 (SD 5.0) to 17.7 (SD 4.8) N·m; P < 0.05] with no significant muscle hypertrophy [3.73 (SD 0.43) to 3.84 (SD 0.52) cm; P = 0.09]. The immobilized arm of Cast-Train did not change in strength [13.9 (SD 4.3) to 14.2 (SD 4.6) N·m] or muscle thickness [3.61 (SD 0.51) to 3.57 (SD 0.43) cm]. The immobilized arm of Cast decreased in strength [12.2 (SD 3.8) to 10.4 (SD 2.5) N·m; P < 0.05] and muscle thickness [3.47 (SD 0.59) to 3.32 (SD 0.55) cm; P < 0.05]. Control showed no changes in the right arm [strength: 15.3 (SD 6.1) to 14.3 (SD 5.8) N·m; muscle thickness: 3.57 (SD 0.68) to 3.52 (SD 0.75) cm] or left arm [strength: 14.5 (SD 5.3) to 13.7 (SD 6.1) N·m; muscle thickness: 3.55 (SD 0.77) to 3.51 (SD 0.70) cm]. Agonist muscle activation remained unchanged after the intervention for both arms [right: 302 (SD 188) to 314 (SD 176) μV; left: 261 (SD 139) to 288 (SD 151) μV] with no group differences. Strength training of the free limb attenuated strength loss in the immobilized limb during unilateral immobilization. Strength training may have prevented muscle atrophy in the immobilized limb.

scholarly journals Asymmetry and changes in the neuromuscular profile of short-track athletes as a result of strength training

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261265
Author(s):  
Paweł Pakosz ◽  
Anna Lukanova-Jakubowska ◽  
Edyta Łuszczki ◽  
Mariusz Gnoiński ◽  
Oscar García-García
Keyword(s):  
Strength Training ◽  
Lower Limb ◽  
Female Athletes ◽  
Lower Limbs ◽  
Lower Limb Muscles ◽  
Limb Muscles ◽  
Before And After ◽  
Monthly Period ◽  
Track Athletes ◽  
The Right

Background The purpose of this study was to identify the biomedical signals of short-track athletes by evaluating the effects of monthly strength training on changes in their neuromuscular profile, strength, and power parameters of the lower limb muscles. Muscle asymmetry, which can cause a risk of injury, was also evaluated. Methods and results This study involved female athletes, age 18.8 ± 2.7 years, with a height of 162 ± 2.4 cm, and weight of 55.9 ± 3.9 kg. Before and after the monthly preparatory period prior to the season, strength measurements were assessed through the Swift SpeedMat platform, and reactivity of the lower limb muscles was assessed with tensiomyography (TMG). The athletes were also tested before and after the recovery training period. In the test after strength training, all average countermovement jump (CMJ) results improved. Flight time showed an increase with a moderate to large effect, using both legs (5.21%). Among the TMG parameters, time contraction (Tc) changed globally with a decrease (-5.20%). Changes in the results of the test after recovery training were most often not significant. Conclusion A monthly period of strength training changes the neuromuscular profile of short-track female athletes, with no significant differences between the right and left lower limbs.

EFFECT OF NEURODYNAMIC SLIDING TECHNIQUE VERSUS STATIC STRETCHING ON HAMSTRING FLEXIBILITY IN FOOTBALL PLAYERS WITH SHORT HAMSTRING SYNDROME

2014 ◽  
Vol 17 (02) ◽  
pp. 1450009 ◽  
Author(s):  
Venus. K. Pagare ◽  
Pooja. M. Ganacharya ◽  
Aarti Sareen ◽  
Tushar. J. Palekar
Keyword(s):  
Hamstring Injury ◽  
Football Players ◽  
Low Back ◽  
Static Stretching ◽  
The Past ◽  
History Of ◽  
Hamstring Flexibility ◽  
Sliding Technique ◽  
Straight Leg Raise ◽  
Study Participants

Purpose: To compare the effects of Neurodynamic Sliding Technique with static stretching on hamstring flexibility in healthy young football players with short hamstring syndrome. Methods: 30 male football players within age group 18–25 years with short hamstring syndrome i.e. initial passive straight leg raise (SLR) ≤ 75° participated in the study. Participants were excluded if they exhibited any hamstring injury within the past year or presence of any history of neurological or orthopedic disorder affecting the lower extremities (e.g. Peripheral neuropathy, femur fracture, meniscal injury, low back pain, etc.) the participants were randomly assigned to either Neurodynamic Sliding Technique group or static stretching group. The same researcher provided the intervention to both the groups for three sessions on three different days over a period of one week. Passive SLR was measured pre-intervention, immediately after 1st session and after three sessions. Results: Statistical analysis (p < 0.05) revealed significant improvement for both the groups but no statistical difference between the two groups. Conclusion: Thus, both the techniques are equally effective to improve hamstring flexibility in football players with short hamstring syndrome.

scholarly journals Immediate effect of dynamic oscillatory stretching vs. neurodynamic sliding technique on stretch tolerance, popliteal angle range and hamstring flexibility in apparently healthy individuals with hamstring tightness: a pre-post clinical trail

2019 ◽  
Vol 7 (5) ◽  
pp. 1862 ◽  
Author(s):  
Ganesh B. R. ◽  
Veedika V. Marwah ◽  
Vidhi S. Joshi
Keyword(s):  
Daily Living ◽  
Knee Extension ◽  
Healthy Individuals ◽  
Post Intervention ◽  
Clinical Trail ◽  
Group A ◽  
Hamstring Flexibility ◽  
Group B ◽  
Sliding Technique ◽  
Apparently Healthy

Background: The hamstrings being postural muscles are prone to tightness which leads to muscular imbalances and inefficiency of daily living activities. Hence, the present study aims to compare two competent techniques Dynamic Oscillatory Stretching (DOS)vs. neurodynamic sliding (NDS) technique.Methods: A Total of 60 subjects were recruited (31 males, 29 females). passive 90-90 knee extension test, modified v sit to reach test and NPRS scale were used to evaluate the range, flexibility and stretch tolerance in participants pre intervention and were allotted into Group A (DOS) and Groups B. The subjects were then re-assessed immediately post intervention.Results: The results were obtained using the independent and dependent t-tests. Post intervention results were suggestive of a significant within group result with a p=0.0001 under all the parameters. Subjects in Group a showed a greater increase in the ROM while, Group B showed a better result in flexibility and stretch tolerance.Conclusions: Both the techniques are efficient and can be incorporated in sports rehabilitation to prevent on site injury thereby improving athlete’s performance.

The effects of stretching with cryotherapy, stretching with heat and stretching alone on hamstring flexibility in physically active females

2020 ◽  
Vol 27 (9) ◽  
pp. 1-9
Author(s):  
Devyani Raghwani ◽  
Maximilian M Wdowski
Keyword(s):  
Intervention Study ◽  
Knee Extension ◽  
Hamstring Muscle ◽  
Short Term ◽  
Post Intervention ◽  
Physically Active ◽  
Before And After ◽  
Post Test ◽  
Heat Application ◽  
Hamstring Flexibility

Background/Aims A pre- and post-intervention study was conducted to examine the effects of acute cryotherapy with stretching, heat with stretching, and stretching alone on hamstring flexibility. Methods Thirty female participants were randomly allocated into three groups: stretching with cryotherapy, stretching with heat, or stretching without an intervention. A sit and reach test and the 90/90 active knee extension test were conducted before and after a 20-minute stretching routine to measure hamstring flexibility. Results Differences were observed pre- and post-test in the sit and reach test and knee 90/90 extension tasks (P<0.05) within all three groups. However, there were no significant differences (P>0.05) between the three intervention groups. Conclusions Combining stretching with cryotherapy or heat application potentially provides no additional benefit to stretching alone in short-term enhancements to hamstring muscle flexibility in physically active females.

scholarly journals Immediate Effects of Neurodynamic Sliding versus Muscle Stretching on Hamstring Flexibility in Subjects with Short Hamstring Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yolanda Castellote-Caballero ◽  
Maríe C. Valenza ◽  
Emilio J. Puentedura ◽  
César Fernández-de-las-Peñas ◽  
Francisco Alburquerque-Sendín
Keyword(s):  
Mixed Model ◽  
Controlled Trial ◽  
Control Group ◽  
Placebo Control ◽  
Hamstring Injuries ◽  
Before And After ◽  
Hamstring Flexibility ◽  
Double Blinded ◽  
Asymptomatic Subjects ◽  
Sliding Technique

Background. Hamstring injuries continue to affect active individuals and although inadequate muscle extensibility remains a commonly accepted factor, little is known about the most effective method to improve flexibility.Purpose. To determine if an isolated neurodynamic sciatic sliding technique would improve hamstring flexibility to a greater degree than stretching or a placebo intervention in asymptomatic subjects with short hamstring syndrome (SHS).Study Design. Randomized double-blinded controlled trial.Methods. One hundred and twenty subjects with SHS were randomized to 1 of 3 groups: neurodynamic sliding, hamstring stretching, and placebo control. Each subject’s dominant leg was measured for straight leg raise (SLR) range of motion (ROM) before and after interventions. Data were analyzed with a3×2mixed model ANOVA followed by simple main effects analyses.Results. At the end of the study, more ROM was observed in the Neurodynamic and Stretching groups compared to the Control group and more ROM in the Neurodynamic group compared to Stretching group.Conclusion. Findings suggest that a neurodynamic sliding technique will increase hamstring flexibility to a greater degree than static hamstring stretching in healthy subjects with SHS.Clinical Relevance. The use of neurodynamic sliding techniques to improve hamstring flexibility in sports may lead to a decreased incidence in injuries; however, this needs to be formally tested.

Skin temperature of middle distance runners after a maximum effort test

2020 ◽  
Vol 42 ◽  
pp. e48114 ◽  
Author(s):  
Jean Artur Mendonça Barboza ◽  
Larissa Isabelle Soares Souza ◽  
Mikhail Santos Cerqueira ◽  
Palloma Rodrigues de Andrade ◽  
Heleodório Honorato dos Santos ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Left Knee ◽  
Pectoralis Major ◽  
Lower Limbs ◽  
Distance Runners ◽  
Short Term ◽  
Posterior View ◽  
Before And After ◽  
Maximum Effort ◽  
The Right

The purpose of this study was to analyze skin temperature (Tsk) responses after a short-term maximum effort test in middle-distance runners. A quasi-experimental study was conducted with ten men (age 23.5±5.10 years) who trained 5 days per week, 2 to 3 hours per day, and were submitted to thermographic evaluation before and after Cooper's 12-minute run test (CRT). The mean temperature of the anterior-superior, posterior-superior, anterior-inferior, and posterior-inferior regions was compared between the sides (i.e., left and right) before and after CRT. The paired t-test showed a significant decrease in Tsk after CRT in the following regions: right pectoralis major (-3.4%), left pectoralis major (-3.4%), and abdomen (-5%) in the anterior-superior view (p<0.01); and in the upper right trunk (-1.9%), upper left trunk (-1.9%) and lower back (-2.9%) in the posterior-superior view (p<0.05). In the lower limbs, a significant increase in temperature of the left knee (1.6%), and right (3.6%) and left ankles (2.9%) in the anterior view (p<0.05), as well as in the right (4.3%) and left ankles (3.7%) in the posterior view (p<0.05) were observed. There was no difference in temperature between the right and left sides. In conclusion, the Tsk change of middle-distance runners was symmetrical between sides, decreasing in upper limbs and trunk and increasing in lower limbs after a short-term maximum effort test.

Mid-aortic syndrome: computed tomography angiography depicting extensive collateral circulation in an 11-year-old patient with thoracoabdominal aortic coarctation

VASA ◽  
2012 ◽  
Vol 41 (2) ◽  
pp. 132-135 ◽  
Author(s):  
Krohn ◽  
Gebauer ◽  
Hübler ◽  
Beck
Keyword(s):  
Computed Tomography ◽  
Computed Tomography Angiography ◽  
Collateral Circulation ◽  
Intestinal Ischemia ◽  
Clinical Presentation ◽  
Lower Limbs ◽  
Upper Body ◽  
Descending Aorta ◽  
Before And After ◽  
Blood Pressures

The mid-aortic syndrome is an uncommon clinical condition characterized by severe narrowing of the descending aorta, usually with involvement of its renal and visceral branches, presenting with uncontrollably elevated blood pressures of the upper body, renal and cardiac failure, intestinal ischemia, encephalopathy symptoms and claudication of the lower limbs, although clinical presentation is variable. In this article we report the case of an eleven-year-old patient with the initial diagnosis of a mid-aortic syndrome and present the computed tomography angiography pictures and reconstructions before and after surgical therapy.

Untersuchungen zur Quantifizierung der Änderung der Skelettmuskeldurchblutung nach Gefäßrevaskularisationen mit einem 99mTechnetiummarkierten Tracer

1990 ◽  
Vol 29 (05) ◽  
pp. 215-220 ◽  
Author(s):  
R. Benning ◽  
K. Nagel ◽  
M. Jugenheimer ◽  
S. Fischer ◽  
S. Worthmann ◽  
...  
Keyword(s):  
Transluminal Angioplasty ◽  
Lower Limbs ◽  
Surgical Patients ◽  
Treadmill Test ◽  
Negative Results ◽  
Clinical Observations ◽  
Before And After ◽  
Comparative Results ◽  
First Time ◽  
Percutaneous Transluminal

A new 99mTc-labelled tracer (99mTc-Sestanriibi) was used for the first time to demonstrate the perfusion of the skeletal muscle. In 16 patients with obstructive atherosclerosis of the lower limbs the change of perfusion of thigh and lower leg was studied with SPECT before and after vascular surgery (n = 11) or percutaneous transluminal angioplasty (n = 5). Comparative results of scintigraphic measurements and clinical observations (ancle-arm pressure, treadmill test) in 10 surgical patients (14 operated legs) showed correct positive or negative results in 86% (12/14).

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