An important function of skeletal muscle is deceleration via active muscle fascicle lengthening, which dissipates movement energy. The mechanical interplay between muscle contraction and tendon elasticity is critical when muscles produce energy. However, the role of tendon elasticity during muscular energy dissipation remains unknown. We tested the hypothesis that tendon elasticity functions as...

BACKGROUND Injuries to the popliteomeniscal fascicles of the lateral meniscus are difficult to identify from physical examination and magnetic resonance imaging scans. To our knowledge, there have been no described physical examination techniques to identify symptomatic isolated popliteomeniscal fascicle tears. The popliteomeniscal fascicles have been demonstrated to be important for lateral me...

Regional fascicle strains were recorded in vivo from the pectoralis of carneau pigeons using sonomicrometry during level slow flight, together with regional electromyography (EMG) and deltopectoral crest (DPC) strain measurements of whole muscle force. Fascicle strain measurements were obtained at four sites within the pectoralis: the anterior (Ant), middle (Mid) and posterior (Post) sternobrac...

The mechanism that allows a sensory neuron to extend its terminal branches along the appropriate fascicle within the CNS turns out to be the same as that which positioned the fascicle earlier on, and the gene that controls this position is the same as that which determined the neuron's identity.

Extensive muscle damage can be induced in isolated muscle preparations by performing a small number of stretches during muscle activation. While typically these fiber strains are large and occur over long lengths, the extent of exercise-induced muscle damage (EIMD) observed in humans is normally less even when multiple high-force lengthening actions are performed. This apparent discrepancy may ...

Isolated popliteomeniscal fascicle tears are often unrecognized and misdiagnosed. Patients typically have vague symptoms and often-normal magnetic resonance imaging and physical examination findings. Isolated injuries are often misdiagnosed and mistreated, leading to delayed surgical treatment. Unrecognized tears can lead to continued disability, lateral meniscus tears, and chondral lesions. Ap...

Response to Letter by Yamada et al Regarding “Differentiation of Papillary Muscle From Fascicular and Mitral Annular Ventricular Arrhythmias in Patients With and Without Structural Heart Disease” To the Editor: We thank Yamada et al for their interest in our recent article. We wish to address the points raised by their letter. First, Yamada et al raise concerns about the location of the left an...

Purpose: To investigate the effect of single session Extracorporeal Shock Wave Therapy (ESWT) over the ankle plantar flexor muscles on the spasticity, muscle architecture, and gait in chronic stroke patients. Methods: This quasi-experimental, single group study had a repeated measures design. A total of 17 post-stroke patients were selected by convenience sampling method, and received 2000 sho...

This article addresses the contents of twelfth-century fascicle contained in MS Lyon, Palais des Arts, 45, which is largely devoted to texts on computus and astrolabe. Included among latter are 24 anonymous chapters astrolabe use, appear stem from a previously unrecorded translation Ibn al-Ṣaffār’s Kitāb fī-l-ʿamal bi-l-asṭurlāb (Book Uses Astrolabe). would make Lyon manuscript third such come ...