Introduction: The study aimed to investigate the onset time and the electromyographic activity level of the selected lower limbs muscles in active and inactive aged women. Methods: in this case-control study, 28 aged women with a mean age of 61.07±0.88 were selected in two groups of inactive (15 people) and active (13 people). The electrical activity of the selected muscles of the lower l...

The physiological properties of vertebrate skeletal muscle typically show a scaling pattern of slower contractile properties with size. In fishes, the myotomal or swimming muscle reportedly follows this pattern, showing slower muscle activation, relaxation and maximum shortening velocity (V(max)) with an increase in body size. We asked if the muscles involved in suction feeding by fishes would ...

background: forward head posture (fhp) is recognized as a common postural disorder of modern societies. increase in anterior cervical convexity and anterior displacement of the line of gravity of head in individuals with fhp is assumed to result in altered moment arms and muscle activity on cervical spine. measurement of muscle thickness seems to be an appropriate index for muscle activity. thi...

abstract introduction: identifying factors which cause the high incidence of acl is of great importance .the anterior shear forces are the primary mechanism of load sustained on the acl. during exercise, the activity of muscles and position of lower limbs may increase or decrease the anterior shear force. the purpose of this study is to investigate the relationship between the activity level of...

1. The objective of this study was to determine whether the chemical and biochemical changes induced by muscle wasting caused by dietary protein restriction are different in various skeletal muscles. 2. Rats were fasted for 3 d and then fed on a 10 g protein/kg diet for 21 d. Thirteen muscles from the trunk, forelimb, and hind-limb regions were analysed for muscle weight, and the content of wat...

Male skeletal muscles are generally faster and have higher maximum power output than female muscles. Conversely, during repeated contractions, female muscles are generally more fatigue resistant and recover faster. We studied the role of estrogen receptor-beta (ERbeta) in this gender difference by comparing contractile function of soleus (mainly slow-twitch) and extensor digitorum longus (fast-...

Neuromuscular warm-up has been shown to decrease the risk of anterior cruciate ligament (ACL) injury improving muscular firing patterns. All preventive training programs described in literature have a duration several weeks. To date, no studies explored immediate effect neuromuscular exercise on pre-activation time knee stabilizer muscles. Thus, this proof-of-principle study aimed at evaluating...

It is believed that a strong core will enable an athlete to effectively transfer forces from the lower extremities through torso upper extremities. Control of shoulder girdle force important for proper function extremities, although stabilising trunk and pelvis are also important. The purpose this study determine association between isometric push-up/pull-down strength abdominal muscles. Using ...

Mimetic muscles contract and pull the overlying skin toward the muscle's bony attachment. Numerous books and articles have shown the mimetic muscles via cadaveric dissection. However, for dentistry and oral surgery, the mimetic muscles have not been detailed from intraoral dissection. Recently, several papers have addressed various mimetic muscles in relation to intraoral dissection. However, t...