Abstract
The paper discusses the biomechanical phases of rope jumping and relates them to Newton's Laws of Motion.

From the Paper
"Jumping rope, according to Buddy Lee's "Biomechanics", is one of the most beneficial exercises in which one can participate. It confers cardiovascular benefits and also helps to improve respiratory function, enhance joint and muscular functions and increase agility. As Lee notes; "Jumping rope is an inexpensive exercise that is associated with reduction of risk for stroke and heart disease, while offering a multi-joint exercise that incorporates every muscle in the body, therefore making it one of the...""

Tags:rope jumping, biomechanics, Newton's Laws of Motion

Abstract
The paper describes kinesthesiology as a branch of physics dedicated to the physics involved in movement. It shows that several scientists of note contributed to this field including Aristotle, who applied geometry to the acts of walking, running and jumping. The paper describes that as a dancer moves across the stage force is transferred from one element to another. This paper explores the body mechanics involved in all phases of the ballet leap, called the jete.

Table of contents
Introduction
Phases of the Jete?
Analysis of the Muscles Involved
Analysis of the Injuries Prone to the Movement

From the Paper
"The landing phase of the leap is by far the most dangerous. If the body is not positioned properly to absorb the impact, injuries could be extensive, particularly if they cause a fall. Every part of the body is at risk in a fall situation. Injuries could be more severe involving broken bones, especially in the ankle and foot of the leading leg. If a fall is involved bruising could result."

Tags:Marie, Camargo, plie, Rectus, femoris, Gravity, Strains, dance

Abstract
This paper presents the findings of an article written after testing two specific hypotheses: (1) that the ski boot in its standard setting causes a misalignment of two measurements of knee angles as compared to the natural barefoot position; and (2) that both canting and boot rotation affect on varus valgus (VV) and internal-external rotation (IRER) angles as well.

Outline:
Introduction
Article Summary
Subjective Evaluation
Biomechanical Description of Technique
Critical Analysis of Technique Selected
Summary

From the Paper
"Knee injuries are some of the most interesting issues in orthopedics and sports medicine from the perspective of both prevention and treatment. The analysis of biomechanical causation is crucial to understanding acute traumatic knee injuries as well as long-term chronic knee problems commonly presenting in athletes at all levels of involvement.
"In the case of knee injuries in skiers, one testable hypothesis is the component of causation that relates to ski boots. By design, ski boots are intended to provide external support and maintenance of advantageous ankle and knee flexion and tibial angular orientation with respect to the perpendicular as measured between the skier and the ski
slope. Previous research has established a relationship between external ankle support in general and specifically, the way that altering or restricting the natural motion of the ankle joint contributes to changes in the mechanical load on anatomical structures in the knee."

Tags:prevention, restricting, ankle

From the Paper
"Chapter 1
Introduction
While there are a variety of skill groupings that prove important to the play of baseball, those entailing the batter's hitting the baseball prove most difficult. As a result, the batter's hitting of the baseball is one of the most important skills needed in the game. There are primarily three phases, or skill groupings, that comprise the swing of the baseball batter: the preparatory phase, the force phase, and the follow-through phase (Hay, 1985, p. 205). The preparatory phase of the batter's swing entails the stance, while the stride and the swing consist of the force phase. McKinney and Logan report that the follow-through phase consists of those actions taken by the batter as he or she is recovering from the swing (McKinney & Logan, 1977, p...."

Abstract
This paper explains that prosthetic devices were needed the minute the first human was born with a missing or deformed limb, or the first person lost a limb in battle or even during the course of daily life. The author points out that the ancient principles on which prosthetics continue to rely are still amazingly efficient. It explains that in the past 25 years, there have been advances in prosthetic limb technology, such as lightweight plastics, composites and electronic systems; but there will be more, which will continue to open new directions for prosthetics. The paper relates that prostheses for amputations through the hip joint consist of a laminated hip basket, hip joint, knee joint, SACH foot, pipe connectors and external cosmetic finish; an active carbon fiber foot and multi-axis hydraulic and mechanical knee joint may also be used. Charts and illustrations.

Table of Contents
Overview Section
History of Lower Limb Prosthetics
Advancements and the Future
Aetiology and Incidence of Lower Limb Amputation
Pre- and Post-Operative Considerations in Lower Limb Amputation
Types of Surgery
Syme's Amputation
Below Knee Amputation
Above Knee Amputation
Hip Disarticulation
Pain Management
Types of Lower Limb Prosthetic Hardware
Literature Review Section

From the Paper
"Sometimes, especially after recorded history began, the reasons for needed prosthetic devices sounded eerily like some of the major 'hero' stories of today; the young man who cut off his own arm to escape entrapment in a crevice on a lonely mountain is one recent example. A few years ago, a man cut off his own lower leg when he caught it in a bear trap far from home or help. However, in Herodotus' The Histories, dating to 484 BCE, there is a story of a Persian named Hegestratus. Hegistratus was captured by the enemy and imprisoned with a leg iron. To escape, he cut off part of his own foot; later, he is said to have worn a wooden replacement, a prosthesis (University of Iowa Health Care Web site). Another account, however, notes that he used a 'wooden filler' to escape, traveling 30 miles before he was captured and "had his head amputated" (Northwestern University Prosthetics-Orthotics Web site). Not only was there no prosthetic head, Hegistratus did not live long enough to investigate what was available in foot prostheses at the time. While much of this knowledge is based on the verbal record, there was physical evidence of early prostheses. A tomb in Capua, Italy, offered an artificial leg made from copper and wood and dating to 200 BCE. Bombing in World War II destroyed it, however."

Tags:stability, principles, electronics, carbon, mechanism

Abstract
The supermarket industry is highly competitive and characterized by low profit margins. Consumers are motivated by price and service since many of the items they carry are considered commodities by consumers. Convenience, including how quickly a consumer can select and pay for goods, is also a motivating factor in choosing one market over another for shopping chores.

From the Paper
"ANTERIOR CRUCIATE LIGAMENT OF THE KNEE JOINT

Introduction
The supermarket industry is highly competitive and characterized by low profit margins. Consumers are motivated by price and service since many of the items they carry are considered commodities by consumers. Convenience, including how quickly a consumer can select and pay for goods, is also a motivating factor in choosing one market over another for shopping chores. A comparison of acute ACL stability tests includes the anterior drawer test, Lachman's test, and pivot shift test.

Anatomy & Structure
The anatomy of the knee includes the patellar ligament, patella, articular cartilage, posterior cruciate ligament, anterior cruciate ligament, medial collateral ligament, lateral ..."

From the Paper
"CERVICAL SPINE DYSFUNCTION
Introduction
This research examines the phenomenon of cervical spine dysfunction. The anatomy of the spine and the biomechanics of movement are reviewed before the dysfunction of the cervical spine and physiotherapeutic techniques that may be used on subjects suffering from cervical spine dysfunction are examined.

Anatomy of the Spine
The human spine is comprised of 24 vertebrae. These vertebrae are small bones which as a set contain the spinal cord. The 24 vertebrae are grouped into three sections which correspond with their location on the spine. The three sections are (1) the cervical spine, which is comprised of the vertebrae located in the neck, (2) the thoracic spine, which is comprised of the vertebrae .."

Abstract
This paper looks at manual handling and the risks involved for back injuries. It looks at different types of handling: lifting, carrying, pushing, pulling and moving. The author assesses risks and gives preventive measures. The paper also offers the biomechanics of manual handling and back injuries.

From the Paper
"A recent survey of self-reported, work-related injuries estimated that there were over a million people with musculoskeletaldisorders (MSD's) in Great Britain caused or aggravated by their work and this resulted in roughly a million lost working days ..."

Tags:manual handling, back injuries

Abstract
This paper provides an application oriented state-of-the-art review of smart materials and magnetostrictive actuators in aeronautical design. Smartness describes self-adaptability, self-sensing, memory and multiple functionality of the materials or structures. The paper shows that these characteristics provide numerous possible applications for these materials and structures in aerospace, manufacturing, civil infrastructure systems and biomechanics. Active vibration and acoustic transmission control, active shape control and active damage control are some of those areas which have found attractive applications for smart materials and structures. Examples of specific applications are micro-positioning, vibration isolation, fast acting valve and nozzles, transducers, luxury car shocks, and active engine mounts in aircrafts. The paper shows that system integration, mass and energy consumption reduction, elimination of moving parts in actuators and collocation between actuator and sensor are some of the benefits of using smart materials. Those smart materials covered in this paper are primarily piezoelectric, shape memory alloys and magnetostrictive.

From the Paper
"Along these lines there is growing interest in the design and control of smart structures systems with embedded sensors and actuators that provide enhanced ability to program a desired response from a system. The ability to sense real-time conditions, i.e., the factors that contribute to turbulence and therefore resistance in a given environment, would be welcome and useful. Applications of interest include: (a) smart helicopter rotors with actuated flaps that alter the aerodynamic and vibrational properties of the rotor in conjunction with evolving flight conditions and aerodynamic loads; and (b) smart fixed wings with actuators that alter airfoil shape to accommodate changing drag/lift conditions. In these and other examples, key technologies include actuators based on materials that respond to changing electric, magnetic, and thermal fields via piezoelectric, magnetostrictive and thermo-elasto-plastic interactions."

Tags:airfoil, Terfenol-D, Dysprosium

Abstract
This paper examines the beneficial aspects of running on the cardiovascular and nervous systems. It does so by first looking at the different types of running and then by explaining the biomechanics of running.

From the Paper
"From a sports professional point of view running is of three different types namely sprinting, middle distance and long distance or (marathon). Sprinting events are those races that are up to 400m. During the sprinting activity the muscles' metabolic pathways supply the required energy at a rate which is several times higher than the regular aerobic systems. This is verified by the decrease in PCr (phosphocreatine) by 67%, muscle glycogen by around 32% and ATP by 28%. Furthermore anaerobic glycolysis increases muscle lactate level by 20 fold. For sprinting, the thrust during the propelling period is very important and sports scientists have reported that the maximum force that a muscle can generate is directly proportional to its cross sectional area. This implies that good Sprinters usually are more muscular compared to marathon racers. For middle distance and marathon running the oxidative systems are the chief energy suppliers and there is a predominance of slow twitch muscle fibres."

Tags:physical, fitness, health, endurance, strength, flexibility, aerobic, oxygen, muscular