Fish oil and conjugated linoleic acid (CLA) belong to a popular class of food supplements known as "fat supplements", which are claimed to reduce muscle glycogen breakdown, reduce body mass, as well as reduce muscle damage and inflammatory responses. Sport athletes consume fish oil and CLA mainly to increase lean body mass and reduce body fat. Recent evidence indicates that this kind of supplem...

Numerous studies conducted over the past 40 to 50 years have consistently pointed to carbohydrate as the primary macronutrient for sustaining and improving physical performance. In recent years, however, with the advent of techniques that better allow scientists to measure the metabolism of key nutrients such as proteins/ amino acids, and studies on alternative feeding regimens such as ketogeni...

Bluetooth is an emerging, short range, indoor wireless network technology, based on FH-CDMA/TDD, which allows a collection of devices to form small overlapping networks, called piconets, in an ad hoc fashion. It is likely that the Bluetooth specification may be adopted in the IEEE 802.15 Wireless Personal Area Network standard. In this paper, we present an analysis of the Bluetooth physical lay...

A wide variety of heavy vehicle types—including single-unit trucks, combination trucks with one, two, or three trailers, and buses—operate on U.S. highways. These heavy vehicle types each have unique physical and performance characteristics that interact with highway features. This chapter summarizes the physical and performance characteristics of heavy vehicles. The issues addressed in this ch...

Even there seemed to be general knowledge that physical activity enhanced spatial cognitive performance almost none experimental studies on this influence exist. For that the influence of physical activity on mental rotation performance is investigated in this study. Mental rotation is the ability to imagine how an object would look if rotated away from the original orientation. Two groups of 4...

OBJECTIVES To assess the ability of gait speed alone and a three-item lower extremity performance battery to predict 12-month rates of hospitalization, decline in health, and decline in function in primary care settings serving older adults. DESIGN Prospective cohort study. SETTING Primary care programs of a Medicare health maintenance organization (HMO) and Veterans Affairs (VA) system. ...

PURPOSE An extensive battery of physical tests is typically employed to evaluate athletic status and/or development, often resulting in a multitude of output variables. The authors aimed to identify independent physical predictors of elite skeleton start performance to overcome the general problem of practitioners employing multiple tests with little knowledge of their predictive utility. MET...

Many of us recognize that some individuals seem "gifted" in sporting ability. We may also have noted the association of such elite performance with past parental success, recognizing intuitively the role of inherited traits. With the expansion of molecular biology and associated technologies, we now find ourselves better able to explore these genetic influences. This article examines the role o...

Background: Childhood obesity is a major public health threat. Increased fitness may have a positive influence on cognitive performance in both adults and children. Purpose: To examine which aspects of children’s fitness assessment are associated with their performance on four different academic areas. Methods: FITNESSGRAM measures aerobic capacity, abdominal strength, upper body strength/endur...

BACKGROUND Recent studies have suggested that inflammation may play an important role in aging and the development of disabilities, but knowledge about its importance in the development of muscle weakness and functional disabilities in very old people is limited. This study examined associations between inflammatory markers and physical performance among nonagenarians. METHODS The population-...