scholarly journals Biomechanical analysis of stair ascent in persons with Chopart amputation

2020 ◽  
Vol 44 (3) ◽  
pp. 164-171
Author(s):  
T Kaib ◽  
J Schäfer ◽  
J Block ◽  
DWW Heitzmann ◽  
C Putz ◽  
...  
Keyword(s):  
Knee Joint ◽  
Range Of Motion ◽  
Reference Group ◽  
Biomechanical Analysis ◽  
Control Group ◽  
Cross Sectional ◽  
Stair Ascent ◽  
Sound Side ◽  
Weight Acceptance ◽  
Partial Foot Amputation

Background: Compared to walking on level ground, ascending stairs requires a large range of motion not only of the hip and knee joint, but also of the ankle joint. The prosthesis often worn by persons with partial foot amputation largely prevents the ankle motion needed during stair ascent. Objectives: Aim of this study was to assess subjects with a Chopart amputation utilizing a clamshell device during stair ascent to identify potential biomechanical deficits. Study design: Cross-sectional study with reference group. Methods: Six subjects with unilateral Chopart amputation and 17 unimpaired subjects underwent three-dimensional motion analysis while ascending stairs in a step-over-step manner. Results: During weight acceptance, the involved side showed increased external hip-flexing and reduced knee-flexing moments and the sound side a higher ankle power than in the control group. The sound side showed higher external knee-flexing, dorsi-flexing, and hip-adducting moments than the controls during weight acceptance. Conclusion: The mechanism observed on the involved side differs from that in controls, but is comparable to the mechanisms used by subjects with transtibial amputation reported in the literature. However, compensatory movements on the sound side take place at the ankle and knee joint, differing from subjects with more proximal amputations. Clinical relevance This study underpins the importance of adequate foot leverage and ankle function in cases of partial foot amputation, particularly in transfer situations such as stair ascent. If ankle range of motion is adequate, prosthetic/orthotic devices combining shank leverage with a hinged spring mechanism at the ankle may be promising.

scholarly journals Rabbit Model of Extending Knee Joint Contracture: Progression of Joint Motion Restriction and Subsequent Joint Capsule Changes after Immobilization

2018 ◽  
Vol 33 (01) ◽  
pp. 015-021 ◽  
Author(s):  
Yun Zhou ◽  
Quan Bing Zhang ◽  
Hua Zhang Zhong ◽  
Yi Liu ◽  
Jun Li ◽  
...  
Keyword(s):  
Knee Joint ◽  
Range Of Motion ◽  
Rabbit Model ◽  
Joint Capsule ◽  
Joint Contracture ◽  
Control Group ◽  
Mrna Levels ◽  
Joint Range Of Motion ◽  
Joint Range ◽  
Tgf Β1

AbstractThis study aimed to develop a rabbit model of knee contracture in extension and investigate the natural history of motion loss and time-dependent changes in the joint capsule after immobilization. We immobilized the unilateral knee joints of 32 rabbits by maintaining the knee joint in a plaster cast at full extension. Eight rabbits were euthanized at 2, 4, 6, and 8 weeks after casting, respectively, and the lower extremities were disarticulated at the hip joint. Eight control group rabbits that did not undergo immobilization were also examined. We assessed the progression of joint contracture by measuring the joint range of motion, evaluating the histologic alteration of the capsule, and assessing the mRNA levels of transforming growth factor β1 (TGF-β1) in the anterior and posterior joint capsules. After 2 weeks of joint immobilization, the knee joint range of motion was limited, the synovial membrane of the suprapatellar and posterior joint capsules was thickened, the collagen deposition was increased, and the mRNA levels of TGF-β1 were elevated in the anterior and posterior joint capsules. These changes progressed rapidly until 6 weeks of immobilization and may advance slowly after 6 weeks. Joint contracture developed at the early stage of immobilization and progressed over time. The changes in the anterior and posterior joint capsules after joint immobilization may contribute to the limitation in flexion. The elevated mRNA expression of TGF-β1 may be related to joint capsule fibrosis and may be one of the causes of joint contracture.

scholarly journals EFEITO DA MASSOTERAPIA NOS SINTOMAS DA DOR MUSCULAR TARDIA

1970 ◽  
Vol 79 (148) ◽  
Author(s):  
Juliane Cabral Silva ◽  
Charles de Souza Vieira ◽  
Lucas Pereira Lopes de Souza ◽  
Rodrigo Cappato de Araújo
Keyword(s):  
Knee Joint ◽  
Range Of Motion ◽  
Eccentric Exercise ◽  
Muscle Soreness ◽  
Statistical Significance ◽  
Knee Extension ◽  
Eccentric Contractions ◽  
Control Group ◽  
Exercise Protocol ◽  
Group Control

Resumo: A dor muscular tardia está associada a exercícios não-acostumados principalmente de natureza excêntrica, tendo seu pico entre 24-72h e caracteriza se pelo aparecimento de dor, rigidez, edema e redução na amplitude de movimento (ADM). O estudo tem como objetivo observar os efeitos da massoterapia sobre os sintomas da dor muscular tardia. Vinte voluntários foram divididos de forma aleatória em dois grupos contendo dez pessoas cada, onde ambos realizaram 3 séries com 10 contrações excêntricas sub-máximas do músculo tríceps sural, sendo um grupo controle e outro submetido a um protocolo de massoterapia logo após o exercício. Foram avaliadas ADM de joelho e tornozelo, perimetria da perna e a dor através da escala visual analógica. Essas avaliações ocorreram antes, após, 24, 48 e 72 horas após o protocolo de exercício. A análise estatística foi feita por meio do teste ANOVA pos hoc Tukey, com nível de significância de 5%. O grupo controle e o grupo de massoterapia apresentaram pico de dor 48 horas após o exercício. O grupo controle ainda apresentou diminuição do movimento de extensão ativa da articulação do joelho, enquanto o grupo que sofreu a intervenção não apresentou alterações significantes na amplitude de movimento. Conclui-se que a técnica é eficaz para evitar a redução de amplitude de extensão ativa do joelho, porém não reduz a dor após um exercício excêntrico não acostumado.Abstract: Delayed on-set muscle soreness is associated with unaccustomed exercise mainly eccentric nature, the intensity of soreness increases during the first 24-72 hours and it is characterized by appearance of pain, stiffness, swelling and reduction in range of motion (ROM). The objective of this study was to observe the effect of the massage on the symptoms of delayed on-set muscle soreness. Twenty volunteers were randomly assigned to either a massage or control group. The volunteers realized 3 sets of 10 submaximal eccentric contractions of the triceps sural muscle. ROM of knee and ankle, perimetry of the leg and pain were evaluated. These evaluations occurred before, after, 24, 48 and 72 hours after the exercise protocol. The statistics analysis was evaluated by ANOVA and Tukey pos hoc test. Statistical significance was set at p < 0.05. The control and massage groups presented peak of pain 48 hours after the exercise. The group control still presented reduction of the movement of active extension of the knee joint, while the group that suffered the intervention did not present significant alterations in the range of motion. The massage technique is efficient to prevent the reduction of range of active knee extension, however does not reduce pain after an unaccustomed eccentric exercise.

scholarly journals Associations Between Sleep Duration, Wake-Up Time, Bedtime, and Abdominal Obesity: Results From 9559 Chinese Children Aged 7–18 Years

2021 ◽  
Vol 12 ◽  
Author(s):  
Meijuan Liu ◽  
Bingyan Cao ◽  
Qipeng Luo ◽  
Qiao Wang ◽  
Min Liu ◽  
...  
Keyword(s):  
Sleep Duration ◽  
Abdominal Obesity ◽  
Reference Group ◽  
Body Height ◽  
Parent Report ◽  
Cross Sectional Study ◽  
Children And Youth ◽  
Control Group ◽  
Cross Sectional ◽  
Physical Measurements

ObjectiveTo investigate the associations of sleep duration, wake-up time, bedtime, and childhood abdominal obesity, and to test whether there is a weekday/weekend difference and the potential modifying role of sex.MethodsThis cross-sectional study was based on the Students’ Constitution and Health Survey and included 9559 students (4840 boys and 4719 girls) aged 7–18 years (7227 aged 7–12 years, 2332 aged 13–18 years). They were divided into two groups (control group and group with abdominal obesity). The physical measurements included children and youth body height, body weight, and waist circumference (WC). A parent-report questionnaire was used to collect the information about parent characteristics as well as lifestyle and sleep patterns (sleep duration, bedtime, and wake-up time of weekdays and weekends) of children and youth.ResultsThe prevalence of abdominal obesity was 30.57% and the percentages of sleep duration &lt;9 hours/day, wake-up time before 07:00 am on weekdays and weekends, bedtime after 10:00 pm on weekends were significantly higher in the group with abdominal obesity. After adjusting for confounders, sleep duration &lt;9 hours/day on weekends was inversely related to abdominal obesity in the overall subjects, regardless of their sex and age, while bedtime after 10:00 pm on weekends was inversely related to abdominal obesity only in the overall subjects, boys, and children aged 7–12 years. Logistic regression models in all subjects showed that shorter hours of weekends sleep duration were associated with greater risks of abdominal obesity, even after adjusting for all confounders, including wake-up time and bedtime. The adjusted odds ratios and 95% confidence intervals of abdominal obesity (with ≥10 hours/day as the reference group) for children with 9–10 hours/day, 8–9 hours/day, and &lt;8 hours/day of weekend sleep duration were 1.23 (1.04–1.46), 1.59 (1.32–1.91) and 1.83 (1.42–2.36), respectively. Specifically, after stratification by sex and age, this phenomenon was only observed in boys and children aged 7–12 years.ConclusionsSleep duration and bedtime on weekends were independently associated with the risk of childhood abdominal obesity, particularly in boys and children aged 7–12 years.

Femoroacetabular Impingement Patients With Decreased Femoral Version Have Different Impingement Locations and Intra- and Extraarticular Anterior Subspine FAI on 3D-CT–Based Impingement Simulation: Implications for Hip Arthroscopy

2019 ◽  
Vol 47 (13) ◽  
pp. 3120-3132 ◽  
Author(s):  
Till D. Lerch ◽  
Adam Boschung ◽  
Inga A.S. Todorski ◽  
Simon D. Steppacher ◽  
Florian Schmaranzer ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Internal Rotation ◽  
Femoroacetabular Impingement ◽  
Hip Arthroscopy ◽  
Control Group ◽  
Level Of Evidence ◽  
Cross Sectional ◽  
Hip Impingement ◽  
Femoral Version ◽  
Asymptomatic Control

Background: It remains unclear whether decreased femoral version (FV) causes anterior intra- or extra-articular femoroacetabular impingement (FAI). Therefore, we evaluated symptomatic hips with decreased FV, with and without cam and pincer FAI, by using computed tomography (CT)–based virtual 3-dimensional (3D) impingement simulation and compared this group with patients with normal FV and with asymptomatic hips. Purpose: To investigate (1) the osseous range of motion, (2) the osseous femoral and acetabular impingement zones, and (3) whether hip impingement is extra- or intra-articular in symptomatic hips with FAI. Study Design: Cross-sectional study; Level of evidence, 3. Methods: An institutional review board–approved, retrospective comparative analysis was performed on a total of 84 hips in 68 participants. Of these, 37 hips in 24 symptomatic patients with FAI had decreased FV. These hips were compared with 21 hips of 18 symptomatic patients with anterior FAI with normal FV (10°-25°) and 26 asymptomatic hips with no FAI and normal FV. All patients with FAI were symptomatic and had anterior hip pain and a positive anterior impingement test. They underwent pelvic CT scans to measure FV. Decreased FV was defined as FV less than 5°. The 37 hips with decreased FV presented both with and without cam and pincer FAI. All 84 hips were evaluated by use of CT-based 3D models and a validated 3D range of motion and impingement simulation. Asymptomatic hips were contralateral normal hips imaged in patients undergoing total hip arthroplasty. Results: Hips with FAI combined with decreased FV had a significantly ( P < .001) lower mean flexion (114°± 8° vs 125°± 13°) and internal rotation (IR) at 90° of flexion (18°± 6° vs 32°± 9°, P < .001) compared with the asymptomatic control group. Symptomatic patients with FAI and normal FV had flexion of 120°± 16° and IR at 90° of flexion of 23°± 15°. In a subgroup analysis, we found a significantly ( P < .001) lower IR in 90° of flexion in hips with FV less than 5° combined with mixed-type FAI compared with hips with FV less than 5° without a cam- or pincer-type deformity. The maximal acetabular impingement zone for hips with decreased FV was located at the 2-o’clock position and ranged from 1 to 3 o’clock. In hips with decreased FV, most of the impingement locations were intra-articular but 32% of hips had combined intra- and extra-articular FAI in internal rotation in 90° of flexion. During the flexion-adduction-IR test performed in 10° and 20° of adduction, extra-articular subspine FAI had significantly ( P < .001) higher prevalence (68% and 84%) in hips with decreased FV compared with normal hips. Conclusion: Hips with FAI and decreased FV had less flexion and internal rotation in 90° of flexion compared with the asymptomatic control group. The majority of hip impingement due to low FV was intra-articular, but one-third of samples had combined intra- and extra-articular subspine FAI. Anterior extra- and intra-articular hip impingement can be present in patients who have FAI with decreased FV. This could be important for patients undergoing hip arthroscopy.

scholarly journals DEEP OSCILLATIONS- REDUCING EDEMA AND IMPROVING KINESIOLOGY IN THE EARLY STAGES AFTER KNEE JOINT ARTHROPLASTY

2021 ◽  
Vol 27 (1) ◽  
pp. 3577-3581
Author(s):  
Evgeniya Vladeva ◽  
◽  
Mariyana Mihaylova ◽  
Liliya Panayotova ◽  
◽  
...  
Keyword(s):  
Knee Joint ◽  
Range Of Motion ◽  
Mechanical Effect ◽  
Joint Arthroplasty ◽  
Control Group ◽  
Pain Syndromes ◽  
Reduction Of Pain ◽  
Anti Inflammatory ◽  
And Control ◽  
Experimental Group

Background: Joint arthroplasty is one of the most common modern operations in orthopedics and traumatology. Physiotherapy and rehabilitation are the final phase of the endoprosthesis and are of great importance both for the rate and for the extent of functional recovery. DEEP OSCILLATION® is a patented therapeutic procedure using resonant vibrations of tissues with minimal external mechanical effect and proven analgesic, antifibrotic, anti-inflammatory and anti-inflammatory effect. Aim of the study: To investigate the effect of deep oscillations and kinesitherapy on the reduction of edema, reduction of pain syndromes and restoration of the range of motion in patients after knee joint arthroplasty. Materials and methods: The study was conducted on 106 patients -38 men and 66 women randomly assigned to 2 groups - experimental group (EG) with 56 patients and control group (CG) with 50 patients, all after knee joint arthroplasty. Results: Our preliminary results indicate that there are significant differences in the recovery of patients in EG and CG. Patients who have a deep oscillation procedure are recovering faster and better, both in terms of subjective complaints and in terms of the monitored functional parameters (p<0.001). Conclusions: The results obtained have shown that deep oscillations are an effective method for reducing swelling, suppressing pain and inflammation, and increasing the range of motion (ROM) in early rehabilitation of patients after knee joint arthroplasty.

scholarly journals A Biomechanical Analysis of the Effect of Pilates Exercise on Female College Students with Knee Joint Deformity

2021 ◽  
Vol 23 (3) ◽  
pp. 20-28
Author(s):  
Okhee Song ◽  
Kook-Eun Seo ◽  
David Michael O’Sullivan ◽  
Jung-Jun Park
Keyword(s):  
College Students ◽  
Knee Joint ◽  
Internal Rotation ◽  
Weight Bearing ◽  
Exercise Group ◽  
Biomechanical Analysis ◽  
Female College Students ◽  
Control Group ◽  
Genu Varum ◽  
Female College

BACKGROUND Current research on genu varum shows the favorable influence of exercise on the biomechanics of the knee joint by reducing the static malalignment and mechanical imbalances, however the transference to a more optimum gait has not been investigated.OBJECTIVES To investigate the effects of Pilates exercise on the changes of gait and lower limb malalignment in female students with genu varum.METHODS A total of 23 female college students with verified genu varum participated in this study. The participants were randomly assigned to two groups a Pilates exercise group (n=15) and a control group (n=8). The Pilates exercise group participated in 1 hour Pilates exercise 3 times per week for a total of 10 weeks. Each of the participants had an X-ray and performed gait 5 times before and after the exercise treatment. The participants kinetic and kinematic data were gathered using an eight Vicon Motion camera system and two force platforms.RESULTS For the Pilates group gait their maximum extension and internal rotation knee moment, and maximum adduction and internal rotation hip moment significantly increased, while the maximum knee moment flexion decreased. For the control group gait their maximum hip extension and hip adduction moment significantly decreased. For the Pilates group there was a significant reduction in the distance from the anatomical axis to the weight bearing line in the left leg, but there was no significant change for the control group.CONCLUSIONS The results suggest that Pilates exercise may be beneficial for females with genu varum by helping to improve both their static alignment and helping their gait to become more balanced.

scholarly journals Does obesity modify the epidemiological association between hyperuricemia and the prevalence of hypertension among Northern Chinese community-dwelling people? A Chinese population-based study

BMJ Open ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. e031803 ◽  
Author(s):  
Simiao Tian ◽  
Yazhuo Liu ◽  
Yang Xu ◽  
Ao Feng
Keyword(s):  
Chinese Population ◽  
Reference Group ◽  
Population Based ◽  
Community Dwelling ◽  
Combined Effect ◽  
Liaoning Province ◽  
Control Group ◽  
Combined Effects ◽  
Cross Sectional ◽  
Increased Risk

ObjectivesHyperuricemia and obesity both play a role in the development of hypertension. However, limited evidence is available for the combined effect of hyperuricemia and obesity on the prevalence of hypertension in the Chinese population. We aimed to assess the separate and combined effects of these two risk factors on the risk of hypertension.MethodsWe conducted a cross-sectional study in an area of Dalian city, Liaoning Province, China, from September 2015 to November 2016; 8700 adult residents were invited to participate in this study. Hyperuricemia was defined as serum uric acid ≥ 416 μmol/L in men and ≥ 357 μmol/L in women according to the guidelines. Individuals were categorised into four groups: the control group (body mass index (BMI) §amp;lt; 25 without hyperuricemia, the reference group), the obesity group (BMI ≥ 25 without hyperuricemia), the hyperuricemia group (BMI §amp;lt; 25 with hyperuricemia) and the obese-hyperuricemia group (BMI ≥ 25 with hyperuricemia). A multivariable logistic model was used to investigate individual and combined effects of hyperuricemia and obesity on the risk of hypertension.ResultsOf the 8331 individuals included, 44.3% were obese, 13.6% suffered from hyperuricemia, and 7.8% were both obese and hyperuricemic. The hypertension prevalence was the highest in the obese-hyperuricemia group (55.5% (95% CI 51.6% to 59.2%)), followed by that in the obesity (44.3% (42.6% to 46.1%)) and that in the hyperuricemia groups (33.5% (29.5% to 37.9%)). After adjusting for confounders, the obese-hyperuricemia group had a nearly threefold increased risk of hypertension compared with their healthy counterparts (OR 2.98 (2.48 to 3.57)). This pattern was also observed in the obesity group with a higher risk of hypertension (OR 2.18 (1.96 to 2.42)) compared with the control group, whereas the risk of hypertension was not elevated significantly in the hyperuricemia group (OR 1.14 (0.92 to 1.42)).ConclusionOur study provided the first evidence that obese Chinese individuals with hyperuricemia had a significantly increased risk of hypertension compared with their healthy counterparts. This combined effect on the risk of hypertension is much stronger than the individual effect of either factor.

scholarly journals Assessment of Spinal Range of Motion and Musculoskeletal Discomfort in Forklift Drivers. A Cross-Sectional Study

2021 ◽  
Vol 18 (6) ◽  
pp. 2947
Author(s):  
Juan Rabal-Pelay ◽  
Cristina Cimarras-Otal ◽  
Noel Marcen-Cinca ◽  
Andrés Alcázar-Crevillén ◽  
Carmen Laguna-Miranda ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Movement Pattern ◽  
Cross Sectional Study ◽  
Office Workers ◽  
Control Group ◽  
Lateral Bending ◽  
Musculoskeletal Discomfort ◽  
Cross Sectional ◽  
Heavy Loads ◽  
The Right

Forklifts are commonly used in industrial supply chains to transport heavy loads. Forklift drivers have the risk of developing musculoskeletal discomfort derived from the movement pattern required at work. This research aimed to investigate the spinal range of motion (ROM) and musculoskeletal discomfort of forklift drivers and compare it with a control group. Forklift drivers (39 males) and office workers (31 males) were recruited to assess cervical, thoracic, and lumbar ROM with an electronic double inclinometer. Additionally, musculoskeletal discomfort was registered with the Cornell Discomfort Musculoskeletal Questionnaire. Forklift drivers showed a higher cervical discomfort and ROM of lateral lumbar bending than office workers. Both groups reported lower ROM in cervical and lumbar lateral bending on the right side versus the left side. No differences of asymmetry were reported for any variable between groups. Specific exercise programs may correct these mobility imbalances.

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