نتایج جستجو برای: jump landing biomechanics
تعداد نتایج: 35821 فیلتر نتایج به سال:
BACKGROUND Aquatic plyometric programs are becoming increasingly popular because they provide a less stressful alternative to land-based programs. Buoyancy reduces the impact forces experienced in water. PURPOSE To quantify the landing kinetics during a range of typical lower limb plyometric exercises performed on land and in water. STUDY DESIGN Crossover design. METHODS Eighteen male par...
Background and Objective: The movement patterns play a key role in the incidence of non-contact ACL injuries. This study attempts to investigate the effect of the +11 program on the jump-landing pattern in female amateur soccer players. Methods: 30 female amateur soccer players were randomly divided into experimental and control groups (15 people in each group). The experimental group performed...
BACKGROUND Neuromuscular training that includes both plyometric and dynamic stabilization/balance exercises alters movement biomechanics and reduces ACL injury risk in female athletes. The biomechanical effects of plyometric and balance training utilized separately are unknown. HYPOTHESIS A protocol that includes balance training without plyometric training will decrease coronal plane hip, kn...
background and objectives: it has been shown that a bout of jumping exercise with weighted vests increases the subsequent countermovement jump height. however, it is not clear whether the improvement in jump height is due to the enhancement of joint power or due to other mechanisms such as neural adaptations. methods: to investigate this dichotomy, we tested the acute neuromechanical changes fo...
CONTEXT Abnormal lower extremity kinematics during dynamic activities may be influenced by impaired gluteus maximus function. OBJECTIVE To examine whether hip-extensor strength and gluteus maximus recruitment are associated with dynamic frontal-plane knee motion during a jump-landing task. DESIGN Exploratory study. SETTING Biomechanics laboratory. PARTICIPANTS 40 healthy female voluntee...
Purpose: This study aimed to investigate the effect of genu varum abnormality on the activity of the anterior leg calf muscle during single-leg jump-landing task. Methods: A total of 28 male students of Physical Education (Mean±SD age: 21.53±1.65 y, weight: 66.67±7.15 kg, height: 173.38±4.54 cm) were assigned into the genu varum (n=14) and normal knee (n=14) groups. Their level of activity of...
the relationship between proximal and distal lower limb muscle activities with time to stabilization
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...
THE RELATIONSHIP BETWEEN LANDING ERROR SCORING SYSTEMREAL TIME AND DORSIFLEXION RANGE OF MOTION IN RECREATIONAL ATHLETES Hannah Martha Twiddy Old Dominion University, 2016 Director: Dr. Johanna Hoch Participation in physical activity is important for overall health; however, lower extremity injuries are a major risk associated with physical activity. Injuries can lead to time away from physical...
abstract background and aim: lack of balance in pattern and activity of quadriceps and hamstring muscles increases the risk of anterior cruciate ligament injury (acl). the purpose of the present study was to investigate the changes in pattern and activity of vastus medialis and semitendinosusmuscles in landing from different heights and to understand if these changes will increase the risk of a...
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