background: palmaris longus (pl) is a muscle with marked variations. it is harvested as a tendon graft in many surgical proceduresin which a certain length of tendon is required. the aims of the present study were to determine the variations of this tendon in iranian population and to find whether the length of pl tendon could be estimated by measuring the forearm length and height.   methods: ...

The objective of this study was to determine the extent of variation in, and relationships among, biochemical and palatability traits within and among 11 major beef muscles. Longissimus thoracis et lumborum (LD), psoas major (PM), gluteus medius (GM), semimembranosus (SM), adductor (AD), biceps femoris (BF), semitendinosus (ST), rectus femoris (RF), triceps brachii (TB), infraspinatus (IS), and...

Sound-producing muscles provide the opportunity of studying the limits of power production at high contractile frequencies. We used the work loop technique to determine the power available from the external oblique muscles in two related species of North American gray tree frog, Hyla chrysoscelis and Hyla versicolor. These trunk muscles contract cyclically, powering high-intensity sound product...

Background: The maintenance of postural control is a key component in dynamic physical activity, especially during muscle fatigue and against external forces. Despite many studies in this field, there is no consensus regarding the effects of plantar flexor muscles fatigue on postural control during different postural tasks.Objective: To evaluate the effects of plantar flexor muscles fatigue on ...

The objective is to find out the variant anatomy of muscles anterior compartment leg in human fetuses at 4-6 months.Material and methods. study was performed on 28 preparations 81.0-230.0 mm parietal-coccygeal length (PCL) using macro-microscopic preparation, morphometry statistical analysis.Results. structure topography 26 months revealed classic sites origin attachment, typical shape, number ...

To better understand disuse muscle atrophy, via magnetic resonance imaging, we sequentially measured muscle cross-sectional area along the entire length of all individual muscles from the hip to ankle in nine male subjects participating in 60-day head-down tilt bed rest (2nd Berlin BedRest Study; BBR2-2). We hypothesized that individual muscles would not atrophy uniformly along their length suc...

1. Our purpose was to investigate the initial mechanisms responsible for contraction-induced injury. Most studies of mechanisms of contraction-induced injury have been based on observations made either shortly after many repeated contractions at the peak of fatigue, or days after, at the peak of delayed onset injury. As a result, conclusions based on these studies are complicated by interaction...

We developed a mouse myocardial preparation to study cellular dysfunction in acute coxsackievirus myocarditis. Thin right ventricular papillary muscles from normal mice (n = 8) were compared with muscles from mice 7 days after coxsackievirus infection (n = 7). Sarcomere shortening was studied with laser diffraction (HeNe, lambda = 623.8 nm). A servomotor was used to shorten a muscle until slack...

Research on muscle activation patterns during swallowing has been limited. Newly developed 320-row area detector computed tomography (320-ADCT) has excellent spatial and temporal resolution, which facilitates identification of laryngopharyngeal structures and quantitative kinematic analysis of pharyngeal swallowing. We investigated muscle activity patterns by observing the changes in length of ...

Abstract: This study aims to determine the relationship between leg muscle power and length 100 meter running speed of extracurricular members SMAN 1 Teluk Batang. The method used is correlational with quantitative descriptive research. data source this research students who take activities meters do a series tests measurements then assessment taken from best score. results showed that there wa...