Developmental Changes in Coordination of Infant Arm and Leg Movements and the Emergence of Function

2014 ◽  
Vol 2 (4) ◽  
pp. 69-79 ◽  
Author(s):  
Wen-Hao Hsu ◽  
Daniel Miranda ◽  
Diana Young ◽  
Kelly Cakert ◽  
Mona Qureshi ◽  
...  

We conducted a longitudinal kinematic study of spontaneous arm and leg motions in 4 supine infants at 3, 4½, and 6 months of age. The study addressed two questions: (a) whether there was a longitudinal change in the synchronization of joint rotations at the hips, knees, shoulders, and elbows, indicating that the arms and legs were moving more independently of each other; and (b) whether, during this period, the spatial location of the hands relative to the shoulders was different from that of the feet relative to the hips, indicating that the infants were beginning to use their upper limbs differently than their lower limbs. We found that, in general, the arms and legs were moving more independently of each other by 6 months of age. At the same time, the infants were more likely to hold their hands away from the body in preparation for making contact with an object in the midline, but they brought their feet close to the body to maximize propulsive kicks. Thus, a reorganization of the relative timing of joint rotations appears to be related to the emergence of different arm and leg functions.

2018 ◽  
Vol 4 (1) ◽  
pp. e000468 ◽  
Author(s):  
Carlos Vicente Andreoli ◽  
Bárbara Camargo Chiaramonti ◽  
Elisabeth Biruel ◽  
Alberto de Castro Pochini ◽  
Benno Ejnisman ◽  
...  

IntroductionBasketball is a contact sport with complex movements that include jumps, turns and changes in direction, which cause frequent musculoskeletal injuries in all regions of the body.ObjectiveThis is an integrative systematic review of the epidemiology of musculoskeletal injuries in basketball.MethodsThis is an integrative review based on the following sources of information: PubMed/MEDLINE, Embase, LILACS, BBO-Biblioteca Brasileira de Odontologia, IBECS-Índice Bibliográfico Espanhol em Ciências da Saúde, nursing journals, dental journals and core clinical journals in the last 10 years with studies addressing the general epidemiology of sports injuries in basketball.ResultsIn total, 268 articles were selected, of which 11 were eligible for the integrative review. A total of 12 960 injuries were observed, most of which occurred in the lower limbs (63.7%), with 2832 (21.9%) ankle injuries and 2305 (17.8%) knee injuries. Injuries in the upper limbs represented 12%–14% of the total injuries. Children and adolescents received head injuries more often compared with the other age and skill categories. In the adult category, there was an increased prevalence of injuries in the trunk and spine. In the upper limbs, hands, fingers and wrists were affected more frequently than the shoulders, arms and forearms. In the masters’ category, there was an increase in the incidence of thigh injuries.ConclusionThe lower limbs were the most affected, with the ankle and knee joints having the highest prevalence of injuries regardless of gender and category. Further randomised studies, increased surveillance and epidemiological data collection are necessary to improve knowledge on sports injuries in basketball and to validate the effectiveness of preventive interventions.


2016 ◽  
Vol 71 (1) ◽  
Author(s):  
E.F. Porto ◽  
A.A.M. Castro ◽  
M. Velloso ◽  
O. Nascimento ◽  
F. Dal Maso ◽  
...  

mandatory constituents of a rehabilitation programme for patients with COPD. However, it is not known how much these exercises may induce pulmonary dynamic hyperinflation (DH). Objective. To evaluate the DH in patients with COPD exercising the upper and lower parts of the body at the same metabolic demand. Methods. Sixteen patients aged 63 ± 13 years and with a FEV1 of 1.5 ± 0.7 L (41 ± 11% pred) were studied. Patients initially performed a maximal exercise test with the arms using the diagonal movement technique. The lower limbs were exercised on a treadmill at the same metabolic demand. Results. Inspiratory capacity decreased 222 ± 158 ml (9.8%) after the upper body exercise (p < 0.0001) and 148 ± 161 ml (7%) after exercise with the lower body (p = 0.0028) and a difference between the two groups was found (p < 0.05). There was no difference between resting IC before upper and lower limbs exercises (p = 0.8); increase in minute ventilation and in pulmonary ventilation in percentage of maximum voluntary ventilation and reduction of expiratory time were larger in the upper limbs exercise (p < 0.05). Dyspnea as measured by the Borg Scale was higher in the upper body (3.9 ± 2.2) than in the lower body (2.3 ± 1.3) at the end of the exercise (p = 0.033). Pulmonary ventilation and inspiratory capacity were correlated (p = 0.0001; r = 0.82). Conclusion. Exercise with the upper part of the body causes more DH and dyspnea than exercise with the lower part of the body at the same metabolic demand.


2021 ◽  
Vol 10 (7) ◽  
pp. e25210716532
Author(s):  
Bruna Duarte Nunes de Oliveira ◽  
Mirelle de Oliveira Saes ◽  
Karla Pereira Machado ◽  
Elaine Thumé ◽  
Alitéia Santiago Dilélio

Musculoskeletal pain in the elderly affects functional capacity and influences increased frailty, comorbidities and mortality. The aim of the study was to evaluate the prevalence of musculoskeletal pain and associated factors in the elderly population. This is a cross-sectional study, using data from the Elderly Cohort Project in Bagé-RS: health situation and relationship with the Family Health Strategy (FHS), carried out during the 2016/2017 follow-up. The sample consisted of 735 elderly people, aged 68 or over, residing in the area covered by primary health care services in the urban area of the municipality of Bagé / RS. The Nordic Musculoskeletal Questionnaire (NMQ) was used to analyze prevalence of pain in the upper limbs, spine and lower limbs and to verify associated factors. Information on the symptoms in these regions of the body was used. The majority elderly of whom were female (65.4%) aged between 68 and 79 years (68.7%) and white skin color (82.2%). Prevalence of musculoskeletal pain in the spine was 42.5%, 33.7% in the upper limbs and 31.0% in the lower limbs. In the crude and adjusted analysis association of pain was maintained with the presence of multimorbidity, greater satisfaction with health and use of emergency services in the last year. The results of this study reinforcing the pattern of pain and musculoskeletal symptoms in the elderly and justifying the need for training professionals and health services to serve this growing portion of the population.


2021 ◽  
Author(s):  
Amanda Xavier Darella ◽  
Stefany Elias ◽  
Gladys Lentz Martins

Case Report A 58-year-old man, previously healthy, presented with headache, myalgia, retrosternal chest pain associated with paresthesia and paresis in upper limbs and lower limbs of acute onset. He denies fever, cough, dyspnea, or contact with patients with COVID-19. There was a difference in blood pressure and pulse in the upper limbs. No particularities in the neurological examination were noted. The electrocardiogram and enzymes of myocardial necrosis did not show abnormalities. PCR for SARS-CoV-2 was positive. Chest computed angiotomography showed acute type IA aortic dissection. The patient underwent cardiac surgery, without complications. After 48 hours of the procedure, the patient progresses with a lower level of consciousness, left hemiplegia, and anisocoria. The brain computed tomography showed extensive ischemic injury in the right middle cerebral artery territory. The patient underwent decompression craniectomy. The patient was discharged from the hospital, maintaining hemiplegia on the left side of the body. Discussion SARS-CoV-2 is a RNA virus responsible for the current COVID-191 pandemic. Moderate to severe forms of the disease may present with acute respiratory distress syndrome (ARDS), myocarditis, and thrombotic events such as pulmonary venous thromboembolism and ischemic stroke2. There are few reports in the literature about acute aortic dissection in patients with COVID-193,4. Acute aortic dissection is characterized by rupture of the intimal layer of the vessel with exposure of the middle layer and cystic necrosis and formation of a false lumen5. The mechanisms associated with thromboembolic phenomena in SARSCoV-2 infection remain poorly elucidated in the literature. This case report highlights a patient with severe complications of COVID-19, with the viral trigger being a possible contributor to the condition of acute aortic dissection and stroke.


Author(s):  
V.K. Sokol

Background. The study of the structure and mechanogenesis of falls is necessary to elucidate causal relationships in criminal catatrauma. Purpose of the study was to analyze the structure of mechanical injury resulting in fractures of the long bones of the lower extremities, and the mechanisms of their formation in victims as a result of a fall, according to the primary forensic examination. Material and methods. The study was carried out based on 130 reports of primary forensic examinations of victims with fractures of the femur and / or shin bones due to mechanical injury for the period February – June 2018. All victims were divided into 4 groups: group 1 included individuals sustaining mechanical injury; group 2 involved individuals sustaining injuries in car accidents; group 3 included patients with traumas from the fall, and group 4 included individuals with gunshot fractures. The methodology of the study was based on applying retrospective analysis, descriptive statistics. Results. In cases of catatrauma, the proportion of fractures of the lower extremities makes up 52%, while the proportions of fractures of the upper limbs, ribs and pelvic bones constitute 16% each; in case of car accident the fractures of low legs make up 82.1%, while the fractures of the upper limbs, ribs and pelvic bones constitute 7.8%; 2.4% and 7.7% each, respectively. There are two types of catatrauma included found out in this study: 1) household falls from the own body height (n = 4), and 2) falls from the height not exceeding 3 m (n = 9). The catatrauma mechanisms included the following: 1) active free uncoordinated fall from the own body height with the phase of primary collision with some isolated primary direct injuries; 2) passive free direct predominantly uncoordinated fall from a height of up to 3 m resulting in multiple combined injuries in the phase of primary collision (n = 4), and in the phases of primary and secondary collision of the body (n = 3). Conclusions. In the structure of mechanical injuries of the long bones in the lower extremities according to the initial forensic medical examination, falls from various heights rank the second position among the most frequent criminal injury (10%) after road traffic injuries (89,2%). Falls from own body height and from the height of up to 3 m were free, straight, and mostly uncoordinated, resulted in mainly primary direct injuries as the fractures of the long bones of the upper and lower limbs, ribs, pelvis, brain concussion, chest bruises and abdominal traumas.


Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 427
Author(s):  
Israel Caraballo ◽  
Francisco Casado-Rodríguez ◽  
José V. Gutiérrez-Manzanedo ◽  
José Luis González-Montesinos

Strength asymmetries in the upper and lower limbs may affect the body movements of the joints or limbs. Although asymmetries in the upper limbs have been studied in sailors, those in lower limbs have not been evaluated in this sport population. The aims of this study were: (i) to analyze lower limb asymmetries in young elite sailors in order to quantify the magnitude of asymmetry between limbs for variables that were established as reliable in a healthy population, and (ii) to evaluate the presence of differences between classes and sexes in inter-limb asymmetries in elite youth sailors. Sixty-eight young Spanish elite sailors (9–19 years of age) participated voluntarily in our study. Single-leg vertical countermovement jump (VCJ), single-leg horizontal countermovement jump and hand dynamometry tests were used to evaluate the strength of the upper and lower limbs. More than 50% of the sailors presented asymmetries in the lower limbs. The boys’ group and Optimist class presented a greater percentage of strength asymmetry.


2018 ◽  
Vol 81 (4) ◽  
pp. 379-392
Author(s):  
Veronika Candráková Čerňanová ◽  
Ján Čerňan ◽  
Zuzana Danková ◽  
Daniela Siváková

Abstract The pre-season preparation aim is to improve the components of physical performance through the changes in training intensity, gradual increment in volume, variation in training frequency and optimizing the body composition. The problem in team sports is the lack of individualization, because most coaches in team sports focus their training on the group and not on improving each player’s strengths and weaknesses. The aim of this study is to identify differences in the body composition and physical performance of young ice-hockey players (15-18 years) with different pre-season training approaches (collective vs. individual). This longitudinal study monitored 13 ice-hockey players with collective training and 8 ice-hockey players with individual training during their pre-season preparation. Body composition was measured by bioimpedance analyzer BIA 101 (Akern, S.R.L.) and the Myotest PRO determined player physical performance in power, force and velocity. Performance and body composition comparisons showed gradual increase in the differences between the two studied groups during the training process. This increase escalated to significant differences in the final output test results and was especially noted in the upper limbs power and force (p=0.016; p<0.001) and lower limbs power and force (p=0.029; p=0.001) with better performance results by individual training approach. Stepwise linear regression also showed significant relationship between upper limbs power, resistance (p<0.001) and fat mass (p<0.001). The upper limbs force was significantly associated with intra-cellular (p<0.001) and extra-cellular water (p=0.026), body cell mass index (p<0.001), basal metabolic rate (p<0.001) and training approach (p<0.001), while the lower limbs power was significantly associated with total body water (p<0.001), training approach (p=0.033) and the pre-season preparation phase (p<0.001). In addition, the training approach (p<0.001), preparation phase (p<0.001), player position (p=0.012) and fat free mass (p<0.001) were significantly associated with lowers limb force. Our results indicate the importance of using an individual training approach and optimal body composition in physical performance progression.


2020 ◽  
Vol 5 (3 And 4) ◽  
pp. 155-160
Author(s):  
Mohsen Aghapoor ◽  
◽  
Babak Alijani Alijani ◽  
Mahsa Pakseresht-Mogharab ◽  
◽  
...  

Background and Importance: Spondylodiscitis is an inflammatory disease of the body of one or more vertebrae and intervertebral disc. The fungal etiology of this disease is rare, particularly in patients without immunodeficiency. Delay in diagnosis and treatment of this disease can lead to complications and even death. Case Presentation: A 63-year-old diabetic female patient, who had a history of spinal surgery and complaining radicular lumbar pain in both lower limbs with a probable diagnosis of spondylodiscitis, underwent partial L2 and complete L3 and L4 corpectomy and fusion. As a result of pathology from tissue biopsy specimen, Aspergillus fungi were observed. There was no evidence of immunodeficiency in the patient. The patient was treated with Itraconazole 100 mg twice a day for two months. Pain, neurological symptom, and laboratory tests improved. Conclusion: The debridement surgery coupled with antifungal drugs can lead to the best therapeutic results.


Author(s):  
Allaoua Brahmia ◽  
Ridha Kelaiaia

Abstract To establish an exercise in open muscular chain rehabilitation (OMC), it is necessary to choose the type of kinematic chain of the mechanical / biomechanical system that constitutes the lower limbs in interaction with the robotic device. Indeed, it’s accepted in biomechanics that a rehabilitation exercise in OMC of the lower limb is performed with a fixed hip and a free foot. Based on these findings, a kinematic structure of a new machine, named Reeduc-Knee, is proposed, and a mechanical design is carried out. The contribution of this work is not limited to the mechanical design of the Reeduc-Knee system. Indeed, to define the minimum parameterizing defining the configuration of the device relative to an absolute reference, a geometric and kinematic study is presented.


2019 ◽  
pp. 3-13
Author(s):  
Alexandru Cîtea ◽  
George-Sebastian Iacob

Posture is commonly perceived as the relationship between the segments of the human body upright. Certain parts of the body such as the cephalic extremity, neck, torso, upper and lower limbs are involved in the final posture of the body. Musculoskeletal instabilities and reduced postural control lead to the installation of nonstructural posture deviations in all 3 anatomical planes. When we talk about the sagittal plane, it was concluded that there are 4 main types of posture deviation: hyperlordotic posture, kyphotic posture, rectitude and "sway-back" posture.Pilates method has become in the last decade a much more popular formof exercise used in rehabilitation. The Pilates method is frequently prescribed to people with low back pain due to their orientation on the stabilizing muscles of the pelvis. Pilates exercise is thus theorized to help reactivate the muscles and, by doingso, increases lumbar support, reduces pain, and improves body alignment.


Sign in / Sign up

Export Citation Format

Share Document