Browsing by Subject "Biomechanics"
Now showing items 21-36 of 36
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Influence of training history and contraction velocity on hamstring muscle coactivation during maximal effort knee extension
(East Carolina University, 2012)When a muscle produces voluntary force, muscles on the opposite side of the joint, the antagonists, are also activated. While coactivation of the knee flexors during knee extension is presumed to increase joint stability ... -
Kinematic and kinetic comparison of running in standard and minimalist shoes
(http://journals.lww.com/acsm-msse/pages/default.aspx, 2013-07)The purpose of this study was to determine if running in a minimalist shoe results in a reduction in ground reaction forces and alters kinematics over standard shoe running. The secondary purpose of this study was to ... -
Modulation of H Reflex in Response to Voluntary Contraction of the Homologous Muscle in the Contralateral Limb
(East Carolina University, 2010)Several studies reported that exercising one limb produces gains in motor output in the same muscle of the un-exercised, contralateral limb. This phenomenon is called cross education. There are also data to suggest that ... -
Muscle Work Discrepancy during Incline and Decline Running at Three Speeds
(East Carolina University, 2009)Introduction: Previous research has explored muscle function during gait and this work has shown that more positive mechanical muscle work is produced in gait tasks that primarily raise the center of mass (incline gait ... -
Muscle work is biased toward energy generation over dissipation in non-level running
(East Carolina University, 2008-12-05)This study tested the hypothesis that skeletal muscles generate more mechanical energy in gait tasks that raise the center of mass compared to the mechanical energy they dissipate in gait tasks that lower the center of ... -
NEURAL MECHANISMS CONTRIBUTE TO THE AGE RELATED INCREASE IN METABOLIC COST OF GAIT
(East Carolina University, 2010)Aging is associated with biomechanical and physiological changes in several organ systems, including neural changes of voluntary movement. One manifestation of age-related changes in neural control of gait is the increased ... -
A pathomechanical paradigm for treating the injured runner
(http://legeforeningen.no/spesial/Norsk-forening-for-idrettsmedisin-og-fysisk-aktivitet/Norsk-idrettsmedisin/?so=0, 2013)Pathological mechanics are thought to play a role in many common running injuries. A review of the biomechanical literature reveals that a given running injury may be associated with multiple faulty running mechanics. ... -
POSITIVE VS. NEGATIVE MUSCLE WORK OF NON-LEVEL WALKING IN LEAN AND OBESE ADULTS.
(East Carolina University, 2010)When walking on non-level surfaces at a constant speed, an individual's total mechanical energy will increase when walking up an incline, and will decrease an equal amount going down a decline. Total muscle work performed ... -
The Relationship between Gait Biomechanics and Body Mass Index
(East Carolina University, 2014)Walking gait is one of the basic components of human movements. With the rising obesity epidemic and implied health complications, it is pertinent to examine the relationship between body mass index and the joint torques ... -
The relationship between visual steadiness and force steadiness in young and old adults
(East Carolina University, 2013)Old adults exhibit a decrease in muscle force steadiness and visual capability compared to young adults. Many studies investigating force steadiness have used a visual target as the stimulus for modulating muscle force. ... -
STRIDE LENGTH MANIPULATION IN YOUNG AND OLD ADULTS DURING LEVEL WALKING
(East Carolina University, 2010)Physiological and neurological changes with healthy aging cause old adults to alter biomechanical gait strategies. Mechanical plasticity is an ambulatory strategy in which old adults rely on proximal musculature in ... -
Task Specific Effects of Unilateral Eccentric and Concentric Exercise on Spinal Excitability of the Contralateral Homologous Plantar Flexors.
(East Carolina University, 2011)It is well established that resistance training increases the size and strength of the trained muscles. It is also known that unilateral muscle contractions can produce strength gains in the non-exercised contralateral ... -
The Effect of Quadriceps Strength Symmetry and Task Demands on Lower Extremity Biomechanics
(East Carolina University, 8/5/2020)Anterior cruciate ligament (ACL) ruptures are a common injury in sports with short and long term consequences. Second ACL injury rates, defined as an injury to the contralateral or healthy limb, or a re-graft tear of the ... -
The Relationships Between Physical Capacity And Biomechanical Plasticity With Age During Level And Incline Walking
(East Carolina University, 2017-05-11)Old compared to young adults exhibit a distal-to-proximal redistribution of joint contributions to support phase mechanics during level and incline walking. Although this biomechanical plasticity is now well established ... -
THE VARIATION IN STRENGTH DECREMENT OF LOWER EXTREMITY MUSCLE GROUPS AND BIOMECHANICAL PLASTICITY IN OLDER ADULTS
(East Carolina University, 2019-08-13)Age-associated biomechanical plasticity (BP) has been established as the distal to proximal shift of joint mechanical output in old adults while walking. The cause of BP is still unknown, but changes in muscle strength of ... -
Varied response to mirror gait retraining of gluteus medius control, hip kinematics, pain, and function in 2 female runners with patellofemoral pain.
(http://www.jospt.org/, 2013-12)STUDY DESIGN: Case report. BACKGROUND: The underlying mechanism of the changes in running mechanics after gait retraining is presently unknown. This case report assesses changes in muscle coordination and kinematics ...