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1.
Isabelle Rousseau-Nepton Céline Huot Diane Laforte Elise Mok Daphna Fenyves Evelyn Constantin John Mitchell 《Molecular genetics and metabolism》2018,123(3):326-330
Background
Glycemic control in hepatic glycogen storage diseases (GSDs) relies on specific nutritional recommendations, including strict avoidance of a fasting period. Uncooked cornstarch (UCCS) is an important therapeutic component. A new modified UCCS, Glycosade?, was created with the objective of prolonging euglycemia. We aimed to determine the length of euglycemia on Glycosade? using a continuous glucose monitor (CGM) and to evaluate whether longer euglycemia and thus less nighttime interruptions would improve sleep and quality of life (QoL) after the introduction of the modified cornstarch.Methods
We conducted a prospective cohort study to assess quality and quantity of sleep and quality of life (QoL) in patients with GSDs on standard UCCS and after the introduction of Glycosade?. Sleep and QoL evaluation was done for patients using validated questionnaires, a standardized sleep diary and actigraphy. Length of fast and glucose variability were determined with CGM.Results
Nine adults with GSD Ia took part in the study. Glycosade? introduction was done under close supervision during a hospital admission. Comparison of sleep in 9 patients showed sleep disturbances on standard UCCS that were improved with Glycosade?. QoL was normal both pre and post Glycosade?. The CGM confirmed maintenance of a longer fasting period with Glycosade? at home.Conclusion
Glycosade? represents an alternative option for GSD patients. We showed possible benefits in terms of sleep quality. We also confirmed the longer length of fast on Glycosade?.Synopsis
A new modified form of uncooked starch for patients with glycogen storage disease represents an alternative option as it showed a longer length of fast and improvements in sleep quality. 相似文献2.
Background
Knee osteoarthritis has a lifetime risk of nearly one in two, with obese individuals being most susceptible. While exercise is universally recognized as a critical component for management, unsafe or ineffective exercise frequently leads to exacerbation of joint symptoms.Aim
Evaluate the effect of a 12 week lower body positive pressure (LBPP) supported low-load treadmill walking program on knee pain, joint function, and performance of daily activities in patients with knee osteoarthritis (OA).Design
Prospective, observational, repeated measures investigation.Setting
Community based, multidisciplinary musculoskeletal medicine clinic.Patients
Thirty-one patients, aged 50–75, with a BMI ≥ 25 kg/m2 and radiographic confirmed mild to moderate knee OA.Intervention
Twelve week LBPP treadmill walking exercise regimen.Outcome measures
The Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Canadian Occupational Performance Measure (COPM) were used to quantify joint symptoms and patient function; isokinetic thigh muscle strength was evaluated; and a 10-point VAS was used to quantify acute knee pain while walking. Baseline and follow-up data were compared in order to examine the effect of the 12 week exercise intervention.Results
There was a significant difference between baseline and follow-up data: KOOS and COPM scores both improved; thigh muscle strength increased; and acute knee pain during full weight bearing walking diminished significantly.Conclusions
Participation in a 12 week LBPP supported treadmill walking exercise regimen significantly enhanced patient function and quality of life, as well as the ability to perform activities of daily living that patient's self-identified as being important, yet difficult to perform. 相似文献3.
John C. McDermott Geoffrey C. B. Elder A. Bonen 《Pflügers Archiv : European journal of physiology》1991,418(4):301-307
Glycogen decrements have been observed in non-exercising muscles during exercise. We therefore investigated whether the degraded glycogen was retained within the muscle in the form of glycolytic intermediates, or whether it was effluxed from the non-exercising muscles. For these studies a suspension harness was used to unload the hindlimb muscles at rest and during exercise [McDermott et al. (1987) J Appl Physiol 63:1275–1283]. Concentrations of glycogen and glycolytic intermediates glucose 6-phosphate, fructose 6-phosphate, fructose 1,6-bisphosphate, glycerol 3-phosphate, and lactate) were measured in non-exercising and exercising muscles (soleus, plantaris, red and white gastrocnemius) during a 90-min exercise bout 15 m/min, 8% grade). On-line electromyographic analysis showed that the contractile activity in the non-exercising muscles was markedly lower than in the exercising muscles. Similar decrements in muscle glycogen levels were observed in both the non-exercising and exercising muscles at the end of the 90-min, exercise bout (P<0.05), despite significantly different activity profiles. An increase in tissue lactate concentrations occurred in both non-exercising and exercising muscle (P<0.05), although only slight changes in the glycolytic intermediates occurred. The sum total of all the accumulated glycolytic intermediates and lactate (converted to glucosyl units) in the non-exercising muscles only accounted for a small fraction of the glycogen degraded ( 15%–28%). We conclude that the metabolism of glycogen is enhanced in non-exercising muscle, and that glycogen utilization is uncoupled from the energetic demands of the muscle. Furthermore, the glycogen mobilized in non-exercising muscle is not retained within the muscle in other metabolite pools. We speculate that the carbon units derived from glycogen may be effluxed into the circulation to join the oxidizable/gluconeogenic carbon pool. 相似文献
4.
E. Villa Moruzzi E. Bergamini Z. Gori Bergamini 《Pflügers Archiv : European journal of physiology》1981,391(4):338-342
Changes in glycogen metabolism with function have been explored in a fast (the extensor digitorum longus, EDL) and in a slow (the soleus, S) muscle of rat. The rate of glucose incorporation is not related to the glycogen levels. In the S glycogen levels are lower and glucose incorporation is higher than in EDL and differences almost disappear after denervation and increase with exercise. In the S, synthetic activities may be higher and glycogenolytic activities are lower than in the EDL. The levels are given of many substrates and cofactors which can affect glycogen enzymes in vivo.On the whole, the data indicate that the rate of glycogen turnover can change dramatically with muscle function even at very light work load and may be higher in the so called oxidative than in the glycolytic muscles. 相似文献
5.
Muscle energy metabolism: structural and functional features in different types of porcine striated muscles 总被引:1,自引:0,他引:1
Huber K Petzold J Rehfeldt C Ender K Fiedler I 《Journal of muscle research and cell motility》2007,28(4-5):249-258
Striated muscles exhibit a wide range of metabolic activity levels. Heart and diaphragm are muscles with continuous contractile
performance, which requires life-long function. In contrast, skeletal muscles like longissimus muscle can adapt metabolism
from resting to different stages of exercise. The aim of this study was to compare the morphological features of these three
muscles and the expression of genes that are important for energy metabolism. Therefore, histochemical studies were performed
for determination of muscle fibre type composition. Oxidative and glycolytic capacity was assessed by measuring isocitrate
dehydrogenase (ICDH) and lactate dehydrogenase (LDH) activities. The mRNA expression of glucose transporter 4 (GLUT 4), growth
hormone receptor (GHR) and AMP-activated kinase (AMPK) α1 and α2 subunits was studied by semiquantitative Northern blotting. Heart, and to a slightly lesser extent diaphragm were highly
oxidative muscles characterised by high expression of oxidative muscle fibres and ICDH activity. Longissimus muscle exhibited
the highest percentage of glycolytic fibres and LDH activity. GLUT 4 mRNA was lowest in heart reflecting the dependency of
heart muscle on fatty acids as major energy source. Higher expression of GLUT 4 in diaphragm indicated that glucose is an
important energy substrate in this oxidative muscle. Highest GLUT 4 expression in longissimus should be essential for the
refilling of glycogen stores after exercise. AMPK subunits, which are important stimulators of GLUT 4 protein insertion into
the sarcolemma, are also highest expressed in longissimus muscle indicating the strong capacity to adapt energy metabolism
to large changes in energy demand. Interestingly, AMPK α1 subunit expression on protein level is strongly restricted to muscle fibres containing type I myosin in this muscle. GHR
mRNA expression was also highest in longissimus muscle indicating that an enhanced effect of growth hormone, which is described
to be diabetogenic, could be involved in the lower insulin sensitivity of glycolytic muscles. 相似文献
6.
Hyung Suk Jang Kwang Ho Cho Gen Murakami Baik Hwan Cho 《Surgical and radiologic anatomy : SRA》2016,38(5):587-596
Purpose
The aim of this study was to describe topography of vessels and nerves in striated muscles to understand individual muscle function.Materials and methods
Immunohistochemistry for nerve and artery was used to examine the thigh and gluteal muscles of six human midterm fetuses.Results
The supplying nerves often accompanied arteries along epimysium bundling muscle fibers as well as in the covering fascia surrounding the entire muscle mass. However, courses of nerve twigs were usually independent of those of vessels in muscle bundles. Notably, irrespective of whether or not the vascular bundle accompanied the nerves at the muscle surface or hilus, most of the motor endplate bands did not accompany the vessels.Conclusion
Since the motor endplates were low vascularised, a chemical induction of vessels for nerve terminal development (or the reversed induction) seemed unlikely in striated muscles. In contrast to proprioceptive neuromuscular facilitation, manual stimulation of the endplate bands may stimulate muscle activity without sympathetic reflexes through vessel-accompanying nerves.7.
Background
Females exhibit significantly greater incidence, prevalence, and severity of osteoarthritis (OA) compared to males. Despite known biological, morphological, and functional differences between males and females, there has been little sex-related investigation into sex-specific biomechanical and neuromuscular responses to OA.Objective
To identify sex-related differences in OA-affected adults and within-sex differences between healthy and OA-affected adults' muscular activation patterns during lower limb loading.Methods
Thirty adults with OA and 36 controls completed a standing ground reaction force (GRF) matching protocol requiring participants to expose equal body weight to each leg and modulate horizontal GRFs while maintaining constant joint positions. Electromyography was plotted as a function of GRF direction to depict muscle activation patterns. Muscles were classified as a general joint stabilizer, specific joint stabilizer or moment actuator by quantifying activation patterns with a test of asymmetry, specificity index and mean direction of activity. Lower limb kinematics and kinetics were also recorded.Results
In general, muscle roles as it relates to joint stability did not differ between groups. Compared to controls, both males and females with OA demonstrated greater rectus femoris activity and reduced knee rotation moments. Females with OA had significantly greater biceps femoris and gastrocnemius activity during respective lateral, and anterior–medial loading directions compared to males with OA.Conclusions
We identified fundamental differences in muscular stabilization strategies in older adults with OA as well as sex-related changes in neuromuscular function that may influence joint loading conditions and provide insight into the greater incidence of knee OA in females. 相似文献8.
Background
Macrophages are tissue resident immune cells important for host defence and homeostasis. During diabetes, macrophages and other innate immune cells are known to have a pro-inflammatory phenotype, which is believed to contribute to the pathogenesis of various diabetic complications. However, diabetic patients are highly susceptible to bacterial infections, and often have impaired wound healing. The molecular mechanism underlying the paradox of macrophage function in diabetes is not fully understood. Recent evidence suggests that macrophage functions are governed by metabolic reprograming. Diabetes is a disorder that affects glucose metabolism; dysregulated macrophage function in diabetes may be related to alterations in their metabolic pathways. In this study, we seek to understand the effect of high glucose exposure on macrophage phenotype and functions.Results
Bone marrow cells were cultured in short or long term high glucose and normal glucose medium; the number and phenotype of bone marrow derived macrophages were not affected by long-term high glucose treatment. Short-term high glucose increased the expression of IL-1β. Long-term high glucose increased the expression of IL-1β and TNFα but reduced the expression of IL-12p40 and nitric oxide production in M1 macrophage. The treatment also increased Arg-1 and IL-10 expression in M2 macrophages. Phagocytosis and bactericidal activity was reduced in long-term high glucose treated macrophages and peritoneal macrophages from diabetic mice. Long-term high glucose treatment reduced macrophage glycolytic capacity and glycolytic reserve without affecting mitochondrial ATP production and oxidative respiration.Conclusion
Long-term high glucose sensitizes macrophages to cytokine stimulation and reduces phagocytosis and nitric oxide production, which may be related to impaired glycolytic capacity.9.
The purpose of this study was to determine for the first time by repeated non-invasive 13C-NMR spectrometry whether blood lactate concentration affects glycogen reduction in non-exercising muscle during prolonged (6 h) physical exercise in healthy adult males. Such an effect would indirectly show that glycogenolysis independent of nervous activation occurs in non-exercising muscle. After an overnight fast, 12 subjects performed alternating one-leg cycle exercise and arm cranking exercise at an average work load of 106 (SD 26) W [63 (9)% maximum oxygen consumption for one-leg exercise] and 69 (13) W [61 (10)% maximum oxygen consumption for arm cranking exercise], respectively. During the 6-h exercise test, glycogen concentration of the non-exercising calf muscle decreased by 17 (7)% while the glycogen concentration in the exercising calf muscle decreased by 45 (8)%. In a resting control group (n=6), the glycogen concentration did not decrease significantly. The higher the exercise intensity and therefore blood lactate concentration, the smaller was the glycogen reduction in the non-exercising calf muscles. We conclude that during prolonged physical exercise glycogenolysis in non-exercising human muscles decreases as exercise intensity increase contrary to exercising muscles. This observation might be an indirect evidence for a non-exercise induced glycogenolysis in inactive muscles. 相似文献
10.
Karl E. Zelik Valentina La Scaleia Yuri P. Ivanenko Francesco Lacquaniti 《European journal of applied physiology》2015,115(4):691-701
Purpose
The human foot undergoes complex deformations during walking due to passive tissues and active muscles. However, based on prior recordings it is unclear if muscles that contribute to flexion/extension of the metatarsophalangeal (MTP) joints are activated synchronously to modulate joint impedance, or sequentially to perform distinct biomechanical functions. We investigated the coordination of MTP flexors and extensors with respect to each other, and to other ankle–foot muscles.Methods
We analyzed surface electromyographic (EMG) recordings of intrinsic and extrinsic foot muscles for healthy individuals during level treadmill walking, and also during sideways and tiptoe gaits. We computed stride-averaged EMG envelopes and used the timing of peak muscle activity to assess synchronous vs. sequential coordination.Results
We found that peak MTP flexor activity occurred significantly before peak MTP extensor activity during walking (P < 0.001). The period around stance-to-swing transition could be roughly characterized by sequential peak muscle activity from the ankle plantarflexors, MTP flexors, MTP extensors, and then ankle dorsiflexors. We found that foot muscles that activated synchronously during forward walking tended to dissociate during other locomotor tasks. For instance, extensor hallucis brevis and extensor digitorum brevis muscle activation peaks decoupled during sideways gait.Conclusions
The sequential peak activity of MTP flexors followed by MTP extensors suggests that their biomechanical contributions may be largely separable from each other and from other extrinsic foot muscles during walking. Meanwhile, the task-specific coordination of the foot muscles during other modes of locomotion indicates a high-level of specificity in their function and control.11.
Tomomi Sakaguchi-Kuma Nao Hayashi Hitomi Fujishiro Kumiko Yamaguchi Kazuo Shimazaki Takashi Ono Keiichi Akita 《Surgical and radiologic anatomy : SRA》2016,38(4):461-467
Purpose
The aim of this study was to evaluate anatomically the relationship between bone and muscles by detailed observation of the bone shape and the structure of muscles to facilitate an understanding of the function of the muscles involved in jaw movement.Methods
36 specimens of 24 Japanese cadavers were examined. The insertion areas were marked using a radiopaque marker and examined by micro-computed tomography. For morphological observation, we used 101 condylar processes. In addition, we made histological sections in some specimens to observe the detailed attachments of the muscle.Results
Based on the micro-CT images and dissection findings, the lateral pterygoid muscle was found to be most frequently inserted into the anterior impression and attached to the medial impression of the process. According to the histological observations, the lateral pterygoid muscle mainly inserted to the condylar process. The micro-CT images indicated that the obvious bony ridge was lateral to the pterygoid fovea on the condylar process in all specimens. The midmedial muscle bundle of the temporalis was attached to the ridge. Based on the morphological observations, the ridge was situated on the lateral area of the condylar process.Conclusions
Since dysfunction of the temporomandibular joint is likely closely related to both the lateral pterygoid muscle and also the temporalis, further studies are necessary to evaluate the function of these muscles and consider jaw movement.12.
Antoine Legendre Diala Khraiche Phalla Ou François-Xavier Mauvais Marine Madrange Anne-Sophie Guemann Jean-Philippe Jais Damien Bonnet Yamina Hamel Pascale de Lonlay 《Molecular genetics and metabolism》2018,123(3):375-381
Introduction
Lipin-1 deficiency is a major cause of rhabdomyolysis that are precipitated by febrile illness. The prognosis is poor, with one-third of patients dying from cardiac arrest during a crisis episode. Apart from acute rhabdomyolysis, most patients are healthy, showing normal clinical and cardiac ultrasound parameters.Patients and methods
We report cardiac and exercise examinations of 8 children carrying two LPIN1 mutations. The examinations were performed outside of a myolysis episode, but one patient presented with fever during one examination.Results
All but one patient displayed normal resting cardiac function, as determined by echocardiography. One patient exhibited slight left ventricular dysfunction at rest and a lack of increased stroke volume during cycle ramp exercise. During exercise, peripheral muscle adaptation was impaired in 2 patients compared to healthy controls: they presented an abnormal increase in cardiac output relative to oxygen uptake: dQ/dVO2 = 8.2 and 9.5 (> 2DS of controls population). One patient underwent 2 exercise tests; during one test, the patient was febrile, leading to acute rhabdomyolysis in the following hours. He exhibited changes in recovery muscle reoxygenation parameters and an increased dQ/dVO2 during exercise compared with that under normothermia (7.9 vs 6), which did not lead to acute rhabdomyolysis. The four patients assessed by cardiac 1H-magnetic resonance spectroscopy exhibited signs of intracardiac steatosis.Conclusion
We observed abnormal haemodynamic profiles during exercise in 3/8 patients with lipin-1 deficiency, suggesting impaired muscle oxidative phosphorylation during exercise. Fever appeared to be an aggravating factor. One patient exhibited moderate cardiac dysfunction, which was possibly related to intracardiac stored lipid toxicity. 相似文献13.
Purpose
In humans, the styloauricularis is a rare muscle extending from the tragal cartilage of the auricle to the styloid process. When it contracts, by bearing on the styloid process, it increases the cephalo-auricular angle. It can be a landmark for the facial nerve. We report a case with bilateral presence of the styloauricularis.Methods
Bilateral presence of the styloauricularis was discovered during routine dissection of the head and neck.Results
In the presented case, styloauricularis muscles arose from the cartilage of the external acoustic meatus on both sides of the head, crossing halfway along the facial nerve trunk and inserting the styloid process. Both muscles were vascularized by a branch of the posterior auricular artery, and innervated by the facial nerve.Conclusions
The ventral auricular muscle, formed by the auricular parotid and the styloauricular muscles, is a muscle that lowers and abducts the auricle in animals. There is generally considered to be no equivalent for these muscles in humans, however, this bilateral case reveals evidence to the contrary. There is a dearth of scientific literature about the styloauricularis. The study of this muscle demonstrated the usefulness of comparative anatomy in understanding its action in increasing the cephalo-auricular angle.14.
Wen-Jing Liu Li Zhou Zhi-Yong Liang Wei-Xun Zhou Lei You Tai-Ping Zhang Yu-Pei Zhao 《Pathology, research and practice》2018,214(2):228-232
Background
It was found that G-protein-coupled receptor kinase 3 (GRK3) played key biological roles in some cancers. However, its associations with clinicopathologic features and prognosis in pancreatic ductal adenocarcinoma (PDAC) remain unknown.Methods and methods
Expression of GRK3 was detected, using tissue microarray-based immunohistochemistry, in paired formalin-fixed paraffin-embedded tumor and non-tumor samples from 165 patients with PDAC after curative resection, and was further correlated with clinicopathologic parameters and cancer-specific survival (CSS).Results
It was shown that GRK3 expression was much lower in tumor than in non-tumor tissues. Moreover, expression of GRK3 in tumor tissues was significantly associated with gender and T stage. Univariately, high GRK3 expression was predictive for favorable CSS, along with some conventional clinicopathologic variables. In multivariate Cox regression test, GRK3 expression remained to be a significant prognostic marker for PDAC. Finally, combination of GRK3 with some clinicopathologic variables, especially N stage, obtained more precise prediction for CSS.Conclusions
Our data suggested that expression of GRK3 was down-regulated in PDAC and was an independent prognostic factor. 相似文献15.
Juliane Lube Sebastian Cotofana Ingo Bechmann Thomas L. Milani Orkun Özkurtul Tatsuo Sakai Hanno Steinke Niels Hammer 《Surgical and radiologic anatomy : SRA》2016,38(1):97-106
Purpose
Muscle volumes are of crucial interest when attempting to analyze individual physical performance and disease- or age-related alterations in muscle morphology. However, very little reference data are available in the literature on pelvis and lower extremity muscle volumes originating from healthy and young individuals. Furthermore, it is of interest if representative muscle volumes, covering large anatomical regions, can be obtained using magnetic resonance imaging (MRI) in a setting similar to the clinical routine. Our objective was therefore to provide encompassing, bilateral, 3-T MRI-based datasets on muscle volumes of the pelvis and the lower limb muscles.Methods
T1-weighted 3-T MRI records were obtained bilaterally from six young and healthy participants. Three-dimensional volumes were compiled from 28 muscles and muscle groups of each participant before the muscle volumes were computed.Results
Muscle volumes were obtained from 28 muscles and muscle groups of the pelvis and lower extremity. Volumes were larger in male than in female participants. Volumes of the dominant and non-dominant sides were similar in both genders. The obtained results were in line with volumetric data obtained from smaller anatomical areas, thus extending the available datasets.Conclusions
This study provides an encompassing and feasible approach to obtain data on the muscle volumes of pelvic and limb muscles of healthy, young, and physically active individuals. The respective data form a basis to determine effects of therapeutic approaches, progression of diseases, or technical applications like automated segmentation algorithms applied to different populations.16.
Monica G. Lawrence John W. Steinke Larry Borish 《Annals of allergy, asthma & immunology》2018,120(4):376-381
Objective
Asthma and allergic diseases continue to increase in prevalence, creating a financial burden on the health care system and affecting the quality of life for those who have these diseases. Many intrinsic and extrinsic factors are involved in the initiation and maintenance of the allergic response. Cytokines are proteins with growth, differentiation, and activation functions that regulate and direct the nature of immune responses.Data Sources
clinicaltrials.gov and PubMed.Study Selections
Relevant clinical trials and recent basic science studies were chosen for discussion.Results
Many cytokines have been implicated in the development and perpetuation of the allergic response. Biologics have been and are continuing to be developed that target these molecules for use in patients with asthma and atopic dermatitis where standard treatment options fail. The current state of cytokine-targeting therapies is discussed.Conclusion
This review focused on cytokines involved in the allergic response with an emphasis on those for which therapies are being or have been developed. 相似文献17.
Fernando Sanz-López César Berzosa Fidel Hita-Contreras Antonio Martínez-Amat 《The Knee》2017,24(3):570-579
Background
The analysis of structural changes in patellar tendon and muscle of healthy subjects in response to mechanical loads provides useful insight into the mechanism underlying overuse injuries.Methods
Changes produced in tendon and muscles structures after eccentric overload training and three consecutive running days were examined. Twenty healthy subjects were recruited and divided into two groups. One group (ECC) performed eccentric overload squat training (six weeks). After such training, the ECC group performed three running sessions on consecutive days, as did the control group (CONT). The structure of their patellar tendons and vastus lateralis muscles was quantified using ultrasound and Doppler imaging. Images were obtained before and after eccentric training for the ECC group and on every day of running performance for both groups.Results
After eccentric training, the ECC group experienced an increase in cross-sectional area (CSA) of patellar tendon (P = 0.012). After every day of running, the ECC group experienced a decrease in CSA (P = 0.027). In the CONT group, after one day of running a significant increase was observed in anteroposterior width of their patellar tendon (P = 0.028), as well as a decrease in pennation angle of vastus lateralis muscle (P = 0.028) within three days of running sessions.Conclusions
Eccentric overload training brought about changes in the patellar tendon consistent with an improvement in the quality of the tissue. The ECC group in our study showed a more normalised pattern than the CONT group in the running performance, in agreement with previous research.Level of evidence
Level 3, controlled trial. 相似文献18.
Paula Calori Domingues Felipe de Souza Serenza Thiago Batista Muniz Luciano Fonseca Lemos de Oliveira Rodrigo Salim Fabricio Fogagnolo Mauricio Kfuri Aline Miranda Ferreira 《The Knee》2018,25(4):588-594
Objectives
The objective of this study was to evaluate the dynamic balance of the injured and uninjured limb before and after the anterior cruciate ligament (ACL) reconstruction and compare with the control group.Study design
Prospective longitudinal.Setting
Biomechanics laboratory.Participants
Participants are 24 males (mean age, 27.5?years) with unilateral ACL injury (ACLG) and 24 male healthy volunteers (CG).Main outcomes measures
The modified star excursion balance test (SEBT) and isokinetic knee extensor and flexor strength were applied in the ACLG preoperatively and after surgery. The dominant limb of CG was evaluated at a single time.Results
There was no difference between the injured and the uninjured limb of the ACLG (P?>?0.05) before and after surgery. Preoperatively, both ACLG limbs had a significantly lower reach distance in posteromedial (PM) and posterolateral (PL) directions and in composite reach (CR) score compared to the control group (P?<?0.001). Postoperatively, no significant differences were found between ACLG and CG (P?>?0.05). There was a positive correlation between preoperative PL (0.59) and CR (0.51), postoperative PM (0.36), PL (0.36) and CR (0.46) with flexor strength at 12 months after surgery.Conclusion
Patients with ACL injury presented a worse performance in the SEBT in the preoperative period compared to the control group. After ligament reconstruction, the performance in the SEBT became equivalent to that of the control group. The strong correlation between flexor strength and posterior directions of the injured limb demonstrates the importance of the knee flexor muscles in the neuromuscular control of patients submitted to ACL reconstruction. 相似文献19.
Katariina Lajunen Satu Kalliola Anne Kotaniemi-Syrjänen Seppo Sarna L. Pekka Malmberg Anna S. Pelkonen Mika J. Mäkelä 《Annals of allergy, asthma & immunology》2018,120(5):520-526
Background
Asthma often begins early in childhood. However, the risk for persistence is challenging to evaluate.Objective
This longitudinal study relates lung function assessed with impulse oscillometry (IOS) in preschool children to asthma in adolescence.Methods
Lung function was measured with IOS in 255 children with asthma-like symptoms aged 4–7 years. Baseline measurements were followed by exercise challenge and bronchodilation tests. At age 12–16 years, 121 children participated in the follow-up visit, when lung function was assessed with spirometry, followed by a bronchodilation test. Asthma symptoms and medication were recorded by a questionnaire and atopy defined by skin prick tests.Results
Abnormal baseline values in preschool IOS were significantly associated with low lung function, the need for asthma medication, and asthma symptoms in adolescence. Preschool abnormal R5 at baseline (z-score ≥1.645 SD) showed 9.2 odds ratio (95%CI 2.7;31.7) for abnormal FEV1/FVC, use of asthma medication in adolescence, and 9.9 odds ratio (95%CI 2.9;34.4) for asthma symptoms. Positive exercise challenge and modified asthma-predictive index at preschool age predicted asthma symptoms and the need for asthma medication, but not abnormal lung function at teenage.Conclusion
Abnormal preschool IOS is associated with asthma and poor lung function in adolescence and might be utilised for identification of asthma persistence. 相似文献20.
Lasse E. Rasmussen Henriette A. Holm Per W. Kristensen Per Kjaersgaard-Andersen 《The Knee》2018,25(2):306-313