Detection of Differential Gliding Characteristics of the Flexor Digitorum Superficialis Tendon and Subsynovial Connective Tissue Using Color Doppler Sonographic Imaging

2007 ◽  
Vol 26 (2) ◽  
pp. 149-155 ◽  
Author(s):  
Sangho Oh ◽  
Marek Belohlavek ◽  
Chunfeng Zhao ◽  
Naoki Osamura ◽  
Mark E. Zobitz ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Color Doppler ◽  
Flexor Digitorum Superficialis ◽  
Subsynovial Connective Tissue ◽  
Flexor Digitorum ◽  
Sonographic Imaging

scholarly journals Sensory and Visual Evaluation of Six Different Beef Shank Cuts from Asian Consumers

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
W. J. Wu ◽  
E. Rice ◽  
B. Olson ◽  
T. O’Quinn ◽  
T. Houser ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Biceps Brachii ◽  
Flexor Digitorum Superficialis ◽  
Surface Color ◽  
Visual Evaluation ◽  
Factors Affecting ◽  
Beef Carcasses ◽  
The Right ◽  
Flexor Digitorum ◽  
Asian Consumers

ObjectivesThe objective of this study was to evaluate factors affecting Asian consumers’ purchasing decisions and eating preferences of six different beef shank cuts.Materials and MethodsSix shank cuts, three from forequarter [biceps brachii (shank A); a combination of deep digital flexor and flexor digitorum superficialis (shank B); extensor carpi radialis (shank C)], and three from hindquarter [flexor digitorum superficialis (shank D); deep digital flexor (shank E), a combination of long digital extensor, medial digital extensor and peroneus tertius (shank F)] were collected from 12 USDA low choice beef carcasses (n = 72). Shanks from the left side of the carcasses were used for consumer panels and stewed in water for 90 min at 98°C. Asian consumers (n = 91) from Manhattan, KS, evaluated samples for connective tissue texture, amount of connective tissue, juiciness, flavor, overall texture (a combination of myofibrillar tenderness and connective tissue texture) and sensory overall liking. Consumers (n = 84) also visually evaluated the size, surface color and visual overall liking of shank samples from the right side of the carcasses. Finally, consumers rated each sample as either acceptable or unacceptable. All ratings were done on either a Just About Right (JAR) or a continuous line scale.ResultsShanks A, C, D and F received similar scores close to JAR (P > 0.05) for connective tissue texture. Connective tissue texture of shank E was harder than shanks A and D, and shank B was the hardest of all (P < 0.01). For connective tissue amount, shanks A, D, and E received ratings close to JAR (P > 0.05). Consumers rated shank B with too much and shank C and F with too little (P < 0.01) connective tissue. Shanks A, D, and F received similar ratings close to JAR for juiciness (P > 0.05), while shanks C and E were rated less juicy, and shank B was the least juicy among all (P < 0.01). For overall texture, shanks A, D, and F received similar ratings close to JAR (P > 0.05), and shanks C and E were tougher than those rated JAR (P < 0.01). Again, shank B was the toughest among all for overall texture (P < 0.01). Shanks A, D, and F received the highest sensory overall liking scores, followed by shanks C and E, and shank B received the lowest overall liking score among all the shank cuts (P < 0.01). All shank cuts received high sensory acceptability scores (> 85%) except for shank B (62%; P < 0.01). Shanks A and C both received scores that were close to JAR for shank size. Consumers indicated that shanks B, E, and F were too big in size, while shank D was too small (P < 0.01). However, shanks B, C, E, and F had the greatest and similar raw weight (P > 0.05), followed by shank A, while shank D was the lightest of all (P < 0.01). For visual overall liking, shanks A and C received the highest scores, followed by shanks B, E, and F, and shank D received the lowest score (P < 0.05). Shanks A and C were most visually acceptable (> 95%), while shanks B, D, E, and F were less acceptable than shanks A and C (> 70%; P < 0.01). Finally, consumers indicated that there was no difference in flavor and surface color among different shank cuts (P > 0.05).ConclusionConnective tissue texture and amount directly affected Asian consumers’ eating preference for different beef shank cuts, while shank size was the main factor affecting their purchasing decision.

Changes in Tissue Substance P Levels in Patients With Carpal Tunnel Syndrome

Neurosurgery ◽  
2010 ◽  
Vol 67 (6) ◽  
pp. 1655-1661 ◽  
Author(s):  
Niyazi Öztürk ◽  
Nuray Erin ◽  
Serdar Tüzüner
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Substance P ◽  
Connective Tissue ◽  
Median Nerve ◽  
Chronic Inflammation ◽  
Carpal Tunnel ◽  
Acid Extraction ◽  
Flexor Digitorum Superficialis ◽  
Tunnel Syndrome ◽  
Flexor Digitorum

Abstract BACKGROUND: Although carpal tunnel syndrome (CTS) is the most common entrapment neuropathy in adults, its etiology is not completely known. Chronic inflammation, fibrosis of the transverse carpal ligament (TCL), and altered sensory response contribute to the symptoms. OBJECTIVE: Because substance P (SP) is known to be involved in neuropathic pain, chronic inflammation, and fibrosis, the present study evaluated changes in SP levels in patients with CTS. METHODS: TCL, median nerve adventitia, and synovial connective tissue of the middle flexor digitorum superficialis tendon samples from patients (n = 42) with CTS and healthy control subjects (n = 13) who were operated on for hand wounds were obtained at surgery. A group of these patients with CTS (n = 9) had received meloxicam treatment for 10 days before surgery. A 2-step acetic acid extraction was used to determine changes in SP levels in free nerve endings (neuronal) and in nonneuronal cells. RESULTS: Changes in SP levels were observed in both neuronal and nonneuronal tissues. SP levels increased in extracts of the TCL and synovial connective tissue of the middle flexor digitorum superficialis tendon but not in the median nerve adventitia of patients with CTS. Meloxicam pretreatment increased SP levels in nonneuronal components of the TCL. CONCLUSION: These findings suggest that SP contributes to the pain and inflammation associated with CTS. Further studies are required to evaluate the therapeutic potentials of SP receptor (NK1R) antagonists in CTS.

scholarly journals Recovery and Fatigue Behavior of Forearm Muscles during a Repetitive Power Grip Gesture in Racing Motorcycle Riders

2021 ◽  
Vol 18 (15) ◽  
pp. 7926
Author(s):  
Michel Marina ◽  
Priscila Torrado ◽  
Raul Bescós
Keyword(s):  
Duty Cycle ◽  
Fatigue Behavior ◽  
Median Frequency ◽  
Flexor Digitorum Superficialis ◽  
Muscle Training ◽  
Maximal Voluntary Isometric Contraction ◽  
Power Grip ◽  
Road Racing ◽  
Flexor Digitorum ◽  
Forearm Muscle

Despite a reduction in the maximal voluntary isometric contraction (MVCisom) observed systematically in intermittent fatigue protocols (IFP), decrements of the median frequency, assessed by surface electromyography (sEMG), has not been consistently verified. This study aimed to determine whether recovery periods of 60 s were too long to induce a reduction in the normalized median frequency (MFEMG) of the flexor digitorum superficialis and carpi radialis muscles. Twenty-one road racing motorcycle riders performed an IFP that simulated the posture and braking gesture on a motorcycle. The MVCisom was reduced by 53% (p < 0.001). A positive and significant relationship (p < 0.005) was found between MFEMG and duration of the fatiguing task when 5 s contractions at 30% MVCisom were interspersed by 5 s recovery in both muscles. In contrast, no relationship was found (p > 0.133) when 10 s contractions at 50% MVC were interspersed by 1 min recovery. Comparative analysis of variance (ANOVA) confirmed a decrement of MFEMG in the IFP at 30% MVCisom including short recovery periods with a duty cycle of 100% (5 s/5 s = 1), whereas no differences were observed in the IFP at 50% MVCisom and longer recovery periods, with a duty cycle of 16%. These findings show that recovery periods during IFP are more relevant than the intensity of MVCisom. Thus, we recommend the use of short recovery periods between 5 and 10 s after submaximal muscle contractions for specific forearm muscle training and testing purposes in motorcycle riders.

The anatomy and function of a bilateral accessory flexor digitorum superficialis muscle: A case report and review of literature

Morphologie ◽  
2020 ◽  
Vol 104 (347) ◽  
pp. 287-292
Author(s):  
M. Maniglio ◽  
C.E. Chalmers ◽  
G. Thürig ◽  
C. Passaplan ◽  
C. Müller ◽  
...  
Keyword(s):  
Case Report ◽  
Flexor Digitorum Superficialis ◽  
Review Of Literature ◽  
And Function ◽  
Flexor Digitorum

Claw-finger Correction in Leprosy Using Half of the Flexor Digitorum Superficialis

2008 ◽  
Vol 33 (4) ◽  
pp. 494-500 ◽  
Author(s):  
T. S. NARAYANAKUMAR
Keyword(s):  
Comparative Study ◽  
Surgical Procedures ◽  
Middle Finger ◽  
Flexor Digitorum Superficialis ◽  
Conventional Procedure ◽  
Paralytic Deformity ◽  
Flexor Digitorum

The commonest paralytic deformity in leprosy is the claw deformity of the fingers. Many surgical procedures have been described and are practiced to correct this deformity, but none is free from complications. A modification of the Zancolli lasso operation in which only half of the flexor digitorum superficialis tendon of the middle finger was used as the motor is described and a comparative study of this and the conventional procedure was carried out in 70 hands in 70 patients. The results suggest that the modification is technically simpler, with comparable results to those of the conventional procedure and fewer complications.

Sign in / Sign up

Export Citation Format

Share Document