An Electromyographic Analysis of the Cuff Link Rehabilitation Device

2005 ◽  
Vol 14 (2) ◽  
pp. 124-136 ◽  
Author(s):  
W. Steven Tucker ◽  
Charles W. Armstrong ◽  
Erik E. Swartz ◽  
Brian M. Campbell ◽  
James M. Rankin
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Glenohumeral Joint ◽  
Weight Bearing ◽  
Full Weight Bearing ◽  
Muscle Recruitment ◽  
Kinetic Chain ◽  
Functional Rehabilitation ◽  
Upper Trapezius ◽  
Partial Weight

Context:Closed kinetic chain exercises are reported to provide a more functional rehabilitation outcome.Objective:To determine the amount of muscle activity in 4 shoulder muscles during exercise on the Cuff Link.Design:Repeated measures.Setting:Laboratory.Subjects:10 men and 10 women, age 18–50.Intervention:Subjects performed 3 sets of 5 revolutions on the Cuff Link in non-weight-bearing, partial-weight-bearing, and full-weight-bearing positions.Main Outcome Measures:Electromyography data were collected from the upper trapezius, anterior deltoid, serratus anterior, and pectoralis major and were expressed as percentage of maximal isometric contractions.Results:Significant differences were found across the weight-bearing conditions for all 4 muscles. Exercise on the Cuff Link required minimal to significant amounts of muscle recruitment.Conclusions:Muscle recruitment increases as weight bearing increases during use of the Cuff Link, suggesting an increase in dynamic stabilization of the glenohumeral joint.

Reliability and Validity of a Novel Approach to Measure Hip Rotation

2016 ◽  
Vol 25 (4) ◽  
pp. 330-337 ◽  
Author(s):  
Brett Aefsky ◽  
Niles Fleet ◽  
Heather Myers ◽  
Robert J. Butler
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Interrater Reliability ◽  
External Rotation ◽  
Weight Bearing ◽  
Intraclass Correlation ◽  
Sports Participation ◽  
Kinetic Chain ◽  
Good Reliability ◽  
Hip Rotation

Context:Currently, hip-rotation range of motion (ROM) is clinically measured in an open kinetic chain in either seated or prone position using passive or active ROM. However, during activities of daily living and during sports participation the hip must be able to rotate in a loaded position, and there is no standard measurement for this.Objective:To determine if a novel method for measuring hip rotation in weight bearing will result in good to very good reliability as demonstrated by an intraclass correlation coefficient (ICC) of >.80 and to investigate if weight-bearing hip measurements will result in significantly reduced hip ROM compared with non-weight-bearing methods.Design:Repeated measures.Setting:Outpatient sports physical therapy clinic.Participants:20 healthy participants (10 men, 10 women) recruited for hip-rotation measurements.Methods:Three trials of both internal and external rotation were measured in sitting, prone, and weight bearing. Two therapists independently measured each participant on the same day. The participants returned the following day to repeat the same measurements with the same 2 therapists.Main Outcome Measures:Degrees of hip internal and external rotation measured in prone, sitting, and loaded positions.Results:In general, the measurement of hip ROM across the different conditions was reliable. The intrarater reliability was .67–.95, while interrater reliability was .59–.96. Interrater reliability was improved when values were averaged across the measures (.75–.97). ICCs for active loaded ROM were .67–.81, while interrater ICCs were .53–.87. In general, prone hip ROM was greater than supine and supine was greater than loaded.Conclusions:Loaded hip rotation can be measured in a clinical setting with moderate to good reliability. The rotation ROM of a loaded hip can be significantly decreased compared with unloaded motion.

scholarly journals Differences in femoral component subsidence rate after THA using an uncemented collarless femoral stem: full weight-bearing with an enhanced recovery rehabilitation versus partial weight-bearing

2021 ◽  
Author(s):  
Franziska Leiss ◽  
Julia Sabrina Götz ◽  
Matthias Meyer ◽  
Günther Maderbacher ◽  
Jan Reinhard ◽  
...  
Keyword(s):  
Risk Factors ◽  
Enhanced Recovery ◽  
Weight Bearing ◽  
Femoral Stem ◽  
Full Weight Bearing ◽  
Partial Weight Bearing ◽  
Fill Ratio ◽  
Stem Subsidence ◽  
Partial Weight

Abstract Background Femoral component subsidence is a known risk factor for early failure of total hip arthroplasty (THA) using cementless stems. The aim of the study was to compare an enhanced recovery concept with early full weight-bearing rehabilitation and partial weight-bearing on stem subsidence. In addition, the influence of patient-related and anatomical risk factors on subsidence shall be assessed. Methods One hundred and fourteen patients underwent primary cementless THA and were retrospectively analyzed. Sixty-three patients had an enhanced recovery rehabilitation with early full weight-bearing and 51 patients had rehabilitation with partial weight-bearing (20 kg) for 6 weeks. Postoperative subsidence was analyzed on standing pelvic anterior–posterior radiographs after 4 weeks and 1 year. Subsidence was measured in mm. Anatomical and prosthetic risk factors (stem size, canal flare index, canal fill ratio as well as BMI and demographic data) were correlated. Results Femoral stem subsidence rate was significantly higher for the group with an enhanced recovery concept compared to the group with partial weight-bearing at the first radiological follow up after 4 weeks [2.54 mm (SD ± 1.86) vs. 1.55 mm (SD ± 1.80)] and the second radiological follow up after 1 year [3.43 mm (SD ± 2.24) vs. 1.94 (SD ± 2.16)] (p < 0.001, respectively). Stem angulation > 3° had a significant influence on subsidence. Canal flare index and canal fill ratio showed no significant correlation with subsidence as well as BMI and age. Conclusion In the present study, cementless stem subsidence was significantly higher in the group with enhanced recovery rehabilitation compared to partial weight-bearing. Small absolute values and differences were demonstrated and therefore possibly below clinical relevance. Anatomical radiological parameters and anthropometric data did not appear to be risk factors for stem subsidence.

Effects of Calisthenics and Pilates Exercises on Coordination and Proprioception in Adult Women: A Randomized Controlled Trial

2012 ◽  
Vol 21 (3) ◽  
pp. 235-243 ◽  
Author(s):  
Derya Ozer Kaya ◽  
Irem Duzgun ◽  
Gul Baltaci ◽  
Selma Karacan ◽  
Filiz Colakoglu
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Controlled Trial ◽  
Exercise Group ◽  
Lower Limbs ◽  
Control Group ◽  
Adult Women ◽  
Kinetic Chain ◽  
Randomized Controlled ◽  
Closed Kinetic Chain

Objective:To assess and compare the effects of 6 mo of Pilates and calisthenics on multijoint coordination and proprioception of the lower limbs at the 3rd and 6th mo of training.Design:Randomized, controlled, assessor-blinded, repeated-measures.Setting:University research laboratory.Participants and Intervention:Healthy, sedentary, female participants age 25–50 y were recruited and randomly divided into 3 groups: a calisthenic exercise group (n = 34, mean age ± SD 40 ± 8 y, body-mass index [BMI] 31.04 ± 4.83 kg/m2), a Pilates exercise group (n = 32, mean age ± SD 37 ± 8 y, BMI 31.04 ± 4.83 kg/m2), and a control group (n = 41, mean age ± SD 41 ± 7 y, BMI 27.09 ± 4.77 kg/m2). The calisthenics and Pilates groups underwent related training programs for 6 mo, while the controls had no specific training.Main Outcome Measures:Coordination and proprioception of the lower extremities with concentric and eccentric performances in the closed kinetic chain assessed with the monitored rehab functional squat system at baseline and at the 3rd and 6th mo of training.Results:For the within-group comparison, coordinative concentric and eccentric deviation values were significantly decreased for both dominant and nondominant lower limbs at pretraining and at the 3rd and 6th mo posttraining in the calisthenics group (P < .05). In contrast, there was no improvement in the Pilates group throughout the training. However, for comparisons between groups, the baseline values of coordinative concentric and eccentric deviations were different in the calisthenics group than in Pilates and the controls (P < .05). There were no differences in the proprioception values of either visible or nonvisible movement in any group throughout the training (P > .05).Conclusions:It seems that calisthenic exercises are more likely to improve coordination of the lower extremity after 3 and 6 mo of training than Pilates exercises. Calisthenic exercises may be useful for individuals who require improved coordination.

scholarly journals Femoral neck stress fracture in a young female recruit: case report

SICOT-J ◽  
2018 ◽  
Vol 4 ◽  
pp. 16 ◽  
Author(s):  
Hélder Fonte ◽  
Ricardo Rodrigues-Pinto
Keyword(s):  
Femoral Neck ◽  
Stress Fracture ◽  
Early Recognition ◽  
Weight Bearing ◽  
Full Weight Bearing ◽  
Imaging Studies ◽  
Partial Weight Bearing ◽  
Military Recruit ◽  
Femoral Neck Stress Fracture ◽  
Partial Weight

Introduction: Femoral neck stress fractures are uncommon and depending on their location, can be at high risk for non-union and significant morbidity.  Their prevalence is higher among runners and military recruits, and women seem to be at higher risk. Methods: A 27-year-old female, who was enrolled in military recruit, reported left side groin pain after a strenuous running exercise. Due to persistent pain an X-Ray was ordered, which revealed no signs of acute lesions. Further imaging studies with CT scan and MRI identified a compression-type femoral neck stress fracture. Results: The patient was submitted to conservative treatment consisting of restricting from full weight-bearing. Six weeks after she initiated partial weight-bearing, becoming asymptomatic at seven months. Follow-up imaging studies revealed union of the fracture. Discussion: This diagnosis should be considered when evaluating military and athlete populations. Early recognition of these injuries is crucial because complication and morbidity rates are high.

scholarly journals Comparison of two reinforcement rings for primary total hip arthroplasty addressing displaced acetabular fractures: a biomechanical analysis

2020 ◽  
Vol 140 (12) ◽  
pp. 1947-1954
Author(s):  
Johannes Becker ◽  
M. Winkler ◽  
C. von Rüden ◽  
E. Bliven ◽  
P. Augat ◽  
...  
Keyword(s):  
Acetabular Fracture ◽  
Weight Bearing ◽  
Biomechanical Analysis ◽  
Acetabular Fractures ◽  
Full Weight Bearing ◽  
Acetabular Cup ◽  
Partial Weight Bearing ◽  
Quadrilateral Plate ◽  
Stable Conditions ◽  
Partial Weight

Abstract Introduction Aim of this study was to biomechanically compare two different acetabular cup fixation constructs in terms of fracture fixation for displaced acetabular fractures involving the anterior column with hemitransverse fracture under partial and full weight-bearing conditions. Methods Two different reinforcement rings designed as cages for primary THA were biomechanically tested in terms of managing a complex acetabular fracture. Single-leg stance cyclic loading was performed to assess fracture gap movement and fragment rotation. Twelve hemi pelvis Sawbones were divided into two groups: primary THA with acetabulum roof reinforcement plate (ARRP) (n = 6) and primary THA with Burch–Schneider reinforcement cage (BSRC) (n = 6). Results During loading under partial weight-bearing (250 N) fracture gap movement tended to be larger in the BSRC group as compared to the ARRP group. Under full weight-bearing conditions, the ARRP showed 60% significantly less motion (p = 0.035) of the os ilium to os ischii gap compared to BSRC. Fracture gap movements between the os ilium and spina iliaca fragments were significantly reduced by 76% (p = 0.048) for ARRP in contrast to BSRC. The ARRP group also demonstrated significantly less movement in the fracture gaps os ischii to quadrilateral plate (62% reduction, p = 0.009) and quadrilateral plate to spina iliaca (87% reduction, p < 0.001). Significantly less rotational movement of the quadrilateral plate to the os ilium was exhibited by the ARRP group (p = 0.015). Conclusions The presented acetabulum roof-reinforcement plate (ARRP) provides stable conditions at the acetabular component with adequate stabilization of a displaced acetabular fracture.

scholarly journals Titanium Acetabular Component Deformation under Cyclic Loading

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 52
Author(s):  
Nicholas A. Beckmann ◽  
Rudi G. Bitsch ◽  
Theresa Bormann ◽  
Steffen Braun ◽  
Sebastian Jaeger
Keyword(s):  
Repeated Measures ◽  
Weight Bearing ◽  
Acetabular Defect ◽  
Acetabular Cup ◽  
Partial Weight Bearing ◽  
Significant Difference ◽  
The Mean ◽  
Partial Weight ◽  
Acetabular Components ◽  
Best Fit

Acetabular cup deformation may affect liner/cup congruency, clearance and/or osseointegration. It is unclear, whether deformation of the acetabular components occurs during load and to what extent. To evaluate this, revision multi-hole cups were implanted into six cadaver hemipelvises in two scenarios: without acetabular defect (ND); with a large acetabular defect (LD) that was treated with an augment. In the LD scenario, the cup and augment were attached to the bone and each other with screws. Subsequently, the implanted hemipelvises were loaded under a physiologic partial-weight-bearing modality. The deformation of the acetabular components was determined using a best-fit algorithm. The statistical evaluation involved repeated-measures ANOVA. The mean elastic distension of the ND cup was 292.9 µm (SD 12.2 µm); in the LD scenario, 43.7 µm (SD 11.2 µm); the mean maximal augment distension was 79.6 µm (SD 21.6 µm). A significant difference between the maximal distension of the cups in both scenarios was noted (F(1, 10) = 11.404; p = 0.007). No significant difference was noted between the compression of the ND and LD cups, nor between LD cups and LD augments. The LD cup displayed significantly lower elastic distension than the ND cup, most likely due to increased stiffness from the affixed augment and screw fixation.

Differences in Static- and Dynamic-Balance Task Performance After 4 Weeks of Intrinsic-Foot-Muscle Training: The Short-Foot Exercise Versus the Towel-Curl Exercise

2012 ◽  
Vol 21 (4) ◽  
pp. 327-333 ◽  
Author(s):  
Scott K. Lynn ◽  
Ricardo A. Padilla ◽  
Kavin K.W. Tsang
Keyword(s):  
Task Performance ◽  
Outcome Measures ◽  
Repeated Measures ◽  
Mixed Model ◽  
Center Of Pressure ◽  
Dynamic Balance ◽  
Weight Bearing ◽  
Static Balance ◽  
Balance Test ◽  
Balance Task

Context:Proper functioning of the intrinsic foot musculature (IFM) is essential in maintaining the integrity of the medial longitudinal arch (MLA). Improper functioning of the IFM leads to excessive pronation of the foot, which has been linked to various pathologies. Therefore, training the IFM to avoid excessive pronation may help prevent some of these pathologies; however, it is not clear how to train these muscles optimally.Objective:To investigate the effects of 2 different types of IFM training on the height of the MLA and static- and dynamic-balance task performance.Design:Randomized controlled trial, repeated-measures mixed-model design.Setting:University biomechanics laboratory for testing and a home-based training program.Participants:24 healthy, university-age volunteers (3 groups of 8) with no history of major lower limb pathology or balance impairment.Interventions:One experimental group performed 4 wk of the short-foot exercise (SFE) and the other performed 4 wk of the towel-curl exercise (TCE). Participants were asked to perform 100 repetitions of their exercise per day.Main Outcome Measures:Navicular height during weight bearing, the total range of movement of the center of pressure (COP) in the mediolateral (ML) direction for a static-balance test and a dynamic-balance test.Results:There were no differences in the navicular height or static-balance tests. For the dynamic-balance test, all groups decreased the ML COP movement on the dominant limb by a small amount (~5 mm); however, the SFE group was able to decrease COP movement much more than the TCE group in the nondominant limb.Conclusions:The SFE appeared to train the IFM more effectively than the TCE; however, there were differing results between the dominant and nondominant legs. These imbalances need to be taken into consideration by clinicians.

scholarly journals Displaced Femoral Neck Stress Fracture in a 7-year-old Child: A Case Report

2020 ◽  
Vol 1 (1) ◽  
pp. 68-72
Author(s):  
Raymond Massaad ◽  
Said El Orra ◽  
Mohammed Dabbous ◽  
Ali Ibrahim ◽  
Antonella Massaad
Keyword(s):  
Case Report ◽  
Femoral Neck ◽  
Stress Fracture ◽  
Weight Bearing ◽  
Full Weight Bearing ◽  
Partial Weight Bearing ◽  
Radiographic Images ◽  
Femoral Neck Stress Fracture ◽  
Displaced Fracture ◽  
Partial Weight

Background: Stress fracture of the femoral neck is rare in children. Its differential diagnosis includes muscle strain, synovitis, infection, dysplasia, etc. Since physicians rarely see this type of fracture in children, they often overlook it or misdiagnose it.  Case Report: A seven-year-old girl presented to our service with right groin pain following a fall on her right hip 15 days ago. Pelvic and knee radiographs of her right limb showed a fracture line with sclerosis at the femoral neck. Magnetic-resonance imaging (MRI) confirmed the diagnosis of a stress fracture of the femoral neck. We opted for conservative management and gave the patient analgesics and limited weight-bearing with the help of crutches for eight weeks. Three weeks after her first visit, the patient presented with severe limping and inability to bear weight on her right leg. Right hip radiographic imaging showed a varus displaced fracture of the femoral neck, which we managed surgically with an open reduction and internal fixation using plate and screws, followed by immobilization of the right hip with a hip spica cast. Six weeks following the surgery, the patient had no complaints, and the radiographic images showed an appropriate reduction and signs of union. The patient was allowed to start partial weight-bearing for a further six weeks before proceeding to full weight-bearing. Conclusion: Our case emphasizes the importance of considering femoral neck stress fracture in children, through a thorough clinical evaluation and imaging analysis, especially for those carrying classical risk factors. Failure to do so can complicate the disease course and may lead to a displaced fracture requiring more invasive and timely management.

scholarly journals Lateral Plantar Arch Reconstruction Using Vascularized Fibula Osteocutaneous Flap

2021 ◽  
Vol 4 (6) ◽  
pp. 01-05
Author(s):  
Srivatsa M Shet ◽  
Subin Joseph ◽  
Kader Kalathinga ◽  
Hafiz Muhammed Koyappathody ◽  
Srikant Aruna Samantaray ◽  
...  
Keyword(s):  
Road Traffic ◽  
Weight Bearing ◽  
Full Weight Bearing ◽  
Partial Weight Bearing ◽  
Post Surgery ◽  
Vascularized Fibula ◽  
One Stage Reconstruction ◽  
Arch Reconstruction ◽  
Partial Weight ◽  
Osteocutaneous Flap

A Sixteen-year-old male had a road traffic accident resulting in crush and loss of lateral two metatarsals of the left foot. The Lateral plantar arch was reconstructed with a vascularized fibula osteocutaneous flap. Flap survived and partial weight-bearing was started by 3 months and full weight-bearing was started 6-months post-surgery. At a 16-month follow-up patient had a normal gait and integrity of the lateral plantar arch was maintained. Vascularized fibula osteocutaneous flap is an excellent option for one-stage reconstruction of the lateral arch of the foot and gives satisfactory results in terms of functions of foot and in avoiding long-term morbidity.

Sign in / Sign up

Export Citation Format

Share Document