• Food Science of Animal Resources
• /
• v.42 no.3
• /
• pp.455-466
• /
• 2022

The aim of this study was to assess the occurrence of white striping (WS), wooden breast (WB), and WS combined with WS/WB muscle abnormalities in broilers (Ross 500) at different slaughter ages (34, 41, and 48 d). In addition, the influence of these muscle abnormalities at different slaughter ages on quality characteristics (physical dimensions, pH, color index, and chemical composition) was studied. Overall occurrence of muscle abnormalities was 45%, 92%, and 100% at slaughter ages of 34, 41, and 48 d, respectively. It was found that about 39% from the occurrence of muscle abnormalities was not similar in the same bird (left and right fillets). Breast fillets affected by muscle abnormalities had significantly (p<0.05) higher weight than normal fillets. At slaughter age of 34 d, normal fillets had significantly higher L^* (67.37 vs. 61.73 and 63.05, p<0.05), lower a^* (3.25 vs. 4.87 and 5.18, p<0.05) and b^* (4.02 vs. 5.20 and 5.99, p<0.05) than WS and WS combined with WB fillets; respectively. The changes in chemical composition due to muscle abnormalities were more significant at high slaughter age than at low slaughter age. In conclusion, the occurrence of muscle abnormalities was strongly influenced by slaughter age. Moreover, breast fillets affected by muscle abnormalities had different quality characteristics (proximate composition, color traits, and dimensions) in comparison to normal fillets.

• Food Science of Animal Resources
• /
• v.38 no.5
• /
• pp.835-850
• /
• 2018

The dramatic improvements in the growth rate and breast muscle size and yield in broilers through the intensive genetic selection, and the improvement in nutrition and management over the past 50 years have introduced serious abnormalities that influenced the quality of breast meat. The abnormalities include pale-soft-exudative (PSE) conditions, deep pectoral muscle (DPM) myopathy, spaghetti meat (SM), white striping (WS), and woody breast (WB) that have serious negative implications to the broiler meat industry. The incidences of PSE and DPM have been known for several decades, and their prevalence, etiology and economic impact have been well discussed. However, other abnormalities such as SM, WS and WB conditions have been reported just for few years although these conditions have been known for some time. The newly emerging quality issues in broilers are mainly associated with the Pectoralis major muscles, and the incidences have been increased dramatically in some regions of the world in recent years. As high as 90% of the broilers are affected by the abnormalities, which are expected to cause from $200 million to $1 billion economic losses to the U.S. poultry industry per year. So, this review mainly discusses the histopathological characteristics and biochemical changes in the breast muscles with the emphasis on the newly emerging abnormalities (SM, WS, and WB) although other abnormalities are also discussed. The impacts of the anomalies on the nutritional, functional, mechanical and sensory quality of the meat and their implications to the poultry industry are discussed.

• Journal of Chest Surgery
• /
• v.28 no.2
• /
• pp.206-208
• /
• 1995

Thoracic outlet syndrome presents with symptoms resulting from pressure on either the subclavian vessels or the lower trunk of the brachial plexus. It may be caused by a number of abnormalities, including degenerative or bony disorders, trauma to the cervical spine, fibromuscular bands, vascular abnormalities, and spasm of the anterior scalene muscle. We experienced a case of thoracic outlet syndrome [ caused by cervical rib .We report a case with review of literatures.

• Clinical and Experimental Pediatrics
• /
• v.49 no.10
• /
• pp.1019-1025
• /
• 2006

Motor delay, when present, is usually the first concern brought by the parents of children with developmental delay. Cerebral palsy that is the most common motor delay, is a nonspecific, descriptive term pertaining to disordered motor function that is evident in early infancy and is characterized by changes in muscle tone, muscle weakness, involuntary movements, ataxia, or a combination of these abnormalities. A wide range of causative disorders and risk factors have been identified for cerebral palsy, and broadly classified into 5 groups; perinatal brain injury, brain injury related to prematurity, developmental abnormalities, prenatal risk factors, and postnatal brain injury. Delay in attaining developmental milestones is the most distinctive presenting complaint in children with cerebral palsy. A detailed history and thorough physical and neurologic examinations are crucial in the diagnostic process. The clinician should be cautious about diagnostic pronouncement unless the findings are unequivocal. Several serial examinations and history review are necessary. All children with cerebral palsy should undergo a neuroimaging study, preferably MRI, because an abnormality is documented on head MRI(89%) and CT(77%). The high incidence rates for mental retardation, epilepsy, ophthalmologic defects, speech and language disorders and hearing impairment make it imperative that all children with cerebral palsy be screened for mental retardation, ophthalmologic and hearing impairments, and speech and language disorders; nutrition, growth, and swallowing also should be closely monitored.

• Clinics in Shoulder and Elbow
• /
• v.21 no.2
• /
• pp.82-86
• /
• 2018

Background: Although a common shoulder disease, there are no accepted classification criteria for frozen shoulder (FS). This study therefore aimed to evaluate the accuracy of the conventionally used FS classification system. Methods: Primary FS patients (n=168) who visited our clinic from January 2010 to July 2015 were included in the study. After confirming restrictions of the glenohumeral joint motion and absence of history of systemic disease, trauma, shoulder surgery, shoulder muscle weakness, or specific x-ray abnormalities, the Zuckerman and Rokito's classification was employed for diagnosing primary FS. Following clinical diagnosis, each patient underwent a shoulder magnetic resonance imaging (MRI) and blood tests (lipid profile, glucose, hemoglobin A1c, and thyroid function). Based on the results of the blood tests and MRIs, the patients were reclassified, using the criteria proposed by Zuckerman and Rokito. Results: New diagnoses were ascertained including blood test results (16 patients with diabetes, 43 with thyroid abnormalities, and 149 with dyslipidemia), and MRI revealed intra-articular lesions in 81 patients (48.2%). After re-categorization based on the above findings, only 5 patients (3.0%) were classified having primary FS. The remaining 163 patients (97.0%) had either undiagnosed systemic or intrinsic abnormalities (89 patients), whereas 74 patients had both. Conclusions: These findings demonstrate that most patients clinically diagnosed with primary FS had undiagnosed systemic abnormalities and/or intra-articular pathologies. Therefore, a modification of the Zuckerman and Rokito's classification system for FS may be required to include the frequent combinations, rather than having a separate representation of systemic abnormalities and intrinsic causes.

• Journal of Veterinary Clinics
• /
• v.34 no.4
• /
• pp.279-282
• /
• 2017

A 9-month-old, female, mixed-breed dog was presented with dyspnea, exercise intolerance and a left apical heart murmur. Echocardiography revealed mitral systolic regurgitant flow by morphological abnormalities of the mitral apparatus including dilated annulus, excessively asymmetric mitral leaflets, short and stout chordae tendinae, and atrophic papillary muscles. The dog was diagnosed with congenital mitral dysplasia based on the echocardiographic features. Two months later, the dog died and the echocardiographic findings were confirmed by necropsy. This case report describes the echocardiographic features of mitral dysplasia with papillary muscle atrophy, and compares the gross necropsy findings in a dog.

• PNF and Movement
• /
• v.21 no.3
• /
• pp.319-326
• /
• 2023

Purpose: The purpose of this study was to investigate the effects of modified ankle movement patterns on participants' active dorsiflexion range of motion and leg muscle activity. Methods: This study recruited twenty-five participants, all of whom were healthy individuals with no abnormalities in the ankle or knee joints. The research methodology involved measuring the active dorsiflexion range of motion and muscle activity in each person's legs based on the presence or absence of toe extension while the subjects were in a comfortable, supine position. A statistical analysis was conducted using SPSS 25.0, and a paired samples t-test was employed. The significance level was set at 0.05. Results: When the participants demonstrated the modified ankle movement pattern with a controlled toe grip, there was an increase in their active dorsiflexion angle. However, during the proprioceptive neuromuscular facilitation technique without a controlled toe grip, a higher level of activity was observed in the leg muscles. Conclusion: The results of this study could be used as foundational data for establishing a rehabilitation exercise program designed to enhance range of motion and muscle activation in the ankle joint.

• Annals of Clinical Neurophysiology
• /
• v.8 no.1
• /
• pp.36-39
• /
• 2006

Background: Floppy infant syndrome has a number of different etiologies. Methods: One hundred twenty-three consecutive patients of floppy infant syndrome were included in this study. We reviewed all the electrophysiologic tests of these patients and the medical record of patients showing abnormalities in the electrophysiologic studies. Results: Of the 123 patients, twenty-six (21.1%) showed definite abnormalities in electrophysiologic tests; 8 myopathies, 14 neuropathies and 4 unclassified. The neuropathy was further classified as 5 neuronopathies and 9 sensorimotor polyneuropathies. With muscle or sural nerve biopsy and genetic test, a final diagnosis was made of Duchenne muscular dystrophy in 4, Becker muscular dystrophy in 1, spinal muscular atrophy in 2, and metachromatic leukodystrophy in 1. Conclusions: About 21% of patients presented with floppy infant syndrome showed abnormalities in the neuromuscular system. The electrophysiologic test is valuable to guide further investigations in diagnosing the cause of floppy infant syndrome.

• Journal of Veterinary Clinics
• /
• v.40 no.3
• /
• pp.215-220
• /
• 2023

A 3-month-old Korean native cattle (Hanwoo) calf with difficulty taking normal posture and an inability to rise was referred for a definite diagnosis and active treatment, including surgery. The calf had a history of an accident in which both hind limbs were trapped in a barn structure. After admission, a "rabbit leg" posture was observed, a typical sign of gastrocnemius muscle rupture, and both digits were knuckled downward like they were trying to grip the ground. This was considered to be a result of the superficial digital flexor not rupturing but only the gastrocnemius muscle rupturing. Physical examination revealed laceration of the metatarsus and firmness behind both stifle joints which were presumed to be the sites of gastrocnemius muscle rupture. Skeletal abnormalities, including fractures, were ruled out by radiography. Based on these findings, the patient was diagnosed with bilateral gastrocnemius muscle rupture, and surgery was performed to reconnect the head of the ruptured muscle. Because the rupture occurred perpendicular to the muscle direction, the locking loop technique, a method of suturing severed tendons, was used to reduce the tension. After surgery, the cast was used to prevent further injuries and promote voluntary rehabilitation. Follow-up was completed, with the calf showing normal posture and gait 112 days after surgery. This is the first case report in the Republic of Korea describing the successful diagnosis and treatment of bilateral gastrocnemius muscle rupture in a calf.

• Clinical and Experimental Pediatrics
• /
• v.45 no.9
• /
• pp.1165-1169
• /
• 2002

Satoyoshi syndrome(generalized Komuragaeri disease) is a rare disorder of unknown cause, characterized by progressive, painful, intermittent muscle spasms and alopecia. Endocrinopathy with amenorrhea, secondary skeletal abnormalities, and diarrhea or unusual malabsorption are frequently seen. It seems that autoimmunity may play a role in its pathogenesis. We report a 13-year-old girl with characteristic manifestations of the syndrome. She was treated with intravenous gammaglobulin and Prednisolone. Painful muscle cramps were gradually improved, but the scalp condition did not change. Satoyoshi syndrome should be considered in children with unexplained muscle spasms and alopecia.