Browsing College of Health and Human Performance by Subject "Biomechanics"
Now showing items 1-20 of 28
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A Comparison of Lean and Obese Gait Characteristics of Children and Adults During Level Walking
(East Carolina University, 2010)Increased body mass affects gait kinematics and kinetics in adults. It is however unknown if increased body mass produces similar adaptations in children and adults. The duration of obesity in children is shorter than ... -
Comparison of Scaled vs. Ultrasound Based Musculoskeletal Models on Knee Muscle Moments During Single-Leg Squatting
(East Carolina University, 2012)Muscles produce force, resulting in moments about a joint, causing movement of the body. Muscle forces are estimated with a Hill-type model incorporating four parameters; optimal fiber length (OFL), tendon slack length, ... -
Control of Walking Speed in Young and Old Adults
(East Carolina University, 2012)Walking is a basic form of locomotion and walking velocity is a good predictor of human health, with faster velocities indicating better health. While faster walking velocities have been attributed to overall increases ... -
The Effect of Eccentric Hamstring Strength Training on Muscle Function
(East Carolina University, 2015)The high prevalence of hamstring strain injury in sports, coupled with detrimental performance and financial effects of hamstring injuries, stress the necessity to implement an intervention capable of minimizing hamstring ... -
The Effect of Load Placement on Lower Extremity Joint Biomechanics in Landing
(2014)Landing is a critical component to athletic performance. Many studies have investigated the effect that added mass has on landing biomechanics finding when load is added to the body during a landing task, an increase in ... -
The Effect of Plantarflexor Strength Training on Gait Biomechanics in Healthy Old Adults
(East Carolina University, 2013)Locomotion is an important and inherent part of daily life and is integral in maintaining an independent lifestyle, especially in older adults whose functional capacity has declined. Physiological changes with aging, ... -
Effects of a Six Week Gastrocnemius PNF Stretching Intervention on Structural Properties of Muscle and Neural Adaptations of Muscle in Young Women
(East Carolina University, 2018-05-18)Muscle injuries account for nearly one-third of sport medicine clinic visits in the United States (Woods et al, 2007) and amass financial burden on both athletes and their respective sports clubs. It is unclear whether ... -
Effects Of Extracellular Matrix Stiffness On Muscle Fiber Mechanotransduction Signaling In Aged Rats
(East Carolina University, 2015)The loss of muscle mass with age, termed sarcopenia, is a common problem among the over 60 years-old population. Resistance training is often prescribed as treatment, but older adults have shown a reduced response to ... -
The Effects of Quadriceps Strengthening Exercise on Quadriceps Muscle Biomechanics During Locomotion in Adults with Knee Osteoarthritis
(East Carolina University, 2013)Knee Osteoarthritis (OA) is a disease characterized by knee joint deterioration and pain, while also being associated with altered knee joint mechanics and quadriceps strength deficits. Research investigating the effects ... -
How do we accelerate while running?
(East Carolina University, 2015)Running biomechanics are well established in terms of lower extremity joint kinetics as is the direct relationship between these variables and running speed. Many studies have investigated the differences in these variables ... -
IDENTIFYING THE EFFECTIVENESS OF AN ONLINE DANCE-SPECIFIC PROTOCOL ON ALIGNMENT AND MUSCLE ACTIVATION IN UNIVERSITY DANCE MAJORS
(East Carolina University, 2022-04-29)Sagittal pelvic alignment is a key component in a dancer's ability to perform the physical tasks required of a dancer. To maintain and improve sagittal pelvic alignment and overall fitness, dancers must cross-train in other ... -
Incorporating a visuomotor skill task with resistance training does not increase strength gains in healthy young adults
(East Carolina University, 2012)Resistance training causes well-documented adaptations in the nervous system and increases maximal voluntary force of healthy human skeletal muscle in the trained and also of the same muscle in untrained limb. It is also ... -
Increased Antagonist Coactivation-Related Hamstring Torque Reduces Maximal Knee Extension Torque in Healthy Old Adults
(East Carolina University, 2010)As humans age, the ability to produce maximal voluntary torque decreases due to muscle atrophy (sarcopenia) and it is also known that advancing age alters the neural control of voluntary movement. One manifestation of the ... -
Influence of Thigh Muscle Forces on Anterior Cruciate Ligament Forces during Single-Leg Landing from Three Different Heights
(East Carolina University, 2010)Over 200,000 anterior cruciate ligament (ACL) injuries occur every year amounting to billions of dollars being spent on the ACL annually. While the quadriceps muscle produces an anterior shear force on the tibia that ... -
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 ... -
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 ...