Inflammatory Cerebral Amyloid Angiopathyand Amyloid-Modifying therapies:Variations on the Same ARIA?
Inflammatory cerebral amyloid angiopathyand amyloid-modifying therapies:Variations on the same ARIA?
Ann Neurol. 2013 Mar 22;
Werring DJ, Sperling R
Cold Modalities with Different Thermodynamic Properties have Similar Effects on Muscular Performance and Activation.
Int J Sports Med. 2013 Mar 22;
Vieira A, B Oliveira A, R Costa J, Herrera E, Salvini TF
Although tissue cooling is widely used in the treatment of musculoskeletal injuries there is still controversy about its effects on muscular performance. The combination of cooling and exercise justifies the study of this topic. The aim was to compare the effects of ice pack and cold-water immersion on the muscular performance parameters of plantar flexors and muscular activation of the triceps surae. 41 healthy men (mean age: 22.1 years, SD: 2.9) were randomly assigned to cooling with either ice pack (n=20) or cold-water immersion (n=21). Independent variables were cold modality (ice pack or cold-water immersion) and pre- and post-cooling measurement time. Dependent variables were muscular performance (measured during isometric and concentric contractions of plantar flexors) and electromyography parameters of the triceps surae (median frequency and root mean square amplitude). Dependent-samples t-tests were used to compare pre- and post-cooling data and independent-samples t-tests were used to compare the difference (pre- and post-cooling) between groups. Ice pack increased isometric peak torque (mean: 9.00 Nm, P=0.01) and both cold modalities reduced muscular activation in triceps surae (P<0.0001); Cold-water immersion and ice pack reduced peak torque and total work during dynamic isokinetic contraction at both velocities (mean: -11,00 Nm, P<0.05) and affected muscular activation in different ways. In conclusion, ice pack increases isometric torque, while both ice pack and cold-water immersion decrease concentric muscular performance. These results indicate that these cooling methods should be chosen with caution, considering the type of task required during training or rehabilitation. New studies investigating other muscle groups and joints are necessary. HubMed – rehab
Effect of Sex on Wasted Left Ventricular Effort Following Maximal Exercise.
Int J Sports Med. 2013 Mar 22;
Lane AD, Ranadive SM, Yan H, Kappus RM, Cook MD, Sun P, Woods JA, Wilund K, Fernhall B
Wasted left ventricular effort (?Ew) refers to work required of the left ventricle to eject blood that does not result in increased stroke volume and is related to left ventricular hypertrophy. Literature shows that men and women have differing ventricular and vascular responses to and following exercise. Our purpose was to determine how ?Ew changes post-exercise in men and women and examine potential mechanisms. We hypothesized a reduction in ?Ew that would be greater in men and that central pulse wave velocity and wave intensity (WIA) would be related to ?Ew. Blood pressures, central pulse wave velocity (cPWV), and WIA were obtained at rest, 15 and 30 min after maximal exercise. Both sexes reduced ?Ew post-maximal exercise (p>0.05 for interaction), but women had higher ?Ew at each time point (p<0.05). The first peak of WIA increased 15 min post-exercise only in women (p<0.05). cPWV was attenuated (p<0.05) in women at 15 min and men at 30 min (p<0.05) post-exercise with a significant time by sex interaction (p<0.05). WIA (1st peak) was correlated (p<0.05) to ?Ew in both sexes before and 15 min post-exercise, but cPWV was only associated with ?Ew in men at 30 min post-exercise. We conclude that both sexes decrease ?Ew after maximal exercise, but vascular and ventricular changes associated with the attenuation of ?Ew are not uniform between sexes. HubMed – rehab
Ischiofemoral impingement syndrome.
Ann Rehabil Med. 2013 Feb; 37(1): 143-6
Lee S, Kim I, Lee SM, Lee J
Ischiofemoral impingement syndrome is known as one of the causes of hip pain due to impingement of ischium and femur, and usually correlated with trauma or operation. We report a rare case of ischiofemoral impingement syndrome that has no history of trauma or surgery. A 48-year-old female patient was referred for 2 months history of the left hip pain, radiating to lower extremity with a hip snapping sensation. She had no history of trauma or surgery at or around the hip joint and femur. The magnetic resonance imaging (MRI) of the lumbar spine showed no abnormality, except diffuse bulging disc without cord compression at the lumbosacral area. Electrophysiologic study was normal, and there were no neurologic abnormalities compatible with the lumbosacral radiculopathy or spinal stenosis. Hip MRI revealed quadratus femoris muscle edema with concurrent narrowing of the ischiofemoral space. The distance of ischiofemoral space and quadratus femoris space were narrow. It was compatible with ischiofemoral impingement syndrome. After treatment with nonsteroidal anti-inflammatory drugs, physical therapy, and exercise program, the patient’s pain was relieved and the snapping was improved. To our knowledge, this is the first reported case of a nontraumatic, noniatrogenic ischiofemoral impingement syndrome, and also the first case to be treated by a nonsurgical method in the Republic of Korea. HubMed – rehab