TITLE

Urine specific gravity in exercisers prior to physical training

AUTHOR(S)
Stover, Elizabeth A.; Petrie, Heather J.; Passe, Dennis; Horswill, Craig A.; Murray, Bob; Wildman, Robert
PUB. DATE
June 2006
SOURCE
Applied Physiology, Nutrition & Metabolism;Jun2006, Vol. 31 Issue 3, p320
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Urine specific gravity (USG) is used as an index of hydration status. Many studies have used USG to estimate pre-exercise hydration in athletes. However, very little is known about the pre-exercise hydration status of recreational exercisers. The purpose of the present study was to measure the pre-exercise USG in a large sample of recreational exercisers who attended 2 different fitness centers in the United States. In addition, we wanted to determine if factors such as time of day, geographic location, and gender influenced USG. We tested 166 subjects in Chicago and 163 subjects in Los Angeles. Subjects completed a survey on their typical training regimen and fluid-replacement habits, and thereafter voided and delivered a urine sample to the investigators prior to beginning exercise. Samples were measured on site for USG using a hand-held refractometer. The mean (SD) USG was 1.018 (± 0.007) for all subjects. Males had a higher average USG (1.020 ± 0.007) when compared with females (1.017 ± 0.008; p = 0.001). Despite differences in climate, no difference in mean USG occurred based on location or time of day. Based on standards used for athletes (USG ≥ 1.020), 46% of the exercisers were likely to be dehydrated.
ACCESSION #
22324876

 

Related Articles

  • Chapter 7: Testing. Boyd, Epley // Path to Athletic Power;2004, p135 

    Chapter 7 of the book "Path to Athletic Power" is presented. It presents a four-step process that includes testing, evaluating, goal setting and program design, that can be used as a formula for success in any exercise program, whether it is for an individual or a professional sport team. It...

  • Lifestyle Profiling in High School Athletes. Jeffreys, Ian; Nitka, Mike // Strength & Conditioning Journal (Allen Press);Jun2006, Vol. 28 Issue 3, p77 

    Multiple lifestyle factors can have a direct effect on athletic performance. This column presents guidelines for evaluating these lifestyle factors in the athletes we train. By monitoring these areas, we can better manage the athlete and have a positive effect on athletic performance.

  • Where The Rubber Meets the Road:.  // Coach & Athletic Director;May2008, Vol. 77 Issue 10, p47 

    The article offers some strength/power training guidelines to improve speed and athleticism. It explains that explosive force application is the basis of strength training for sports, and functional strength is really expressed in terms of acceleration, execution time or velocity. It suggests to...

  • Physical Education. McCabe, Mary // Teen Ink;May2001, Vol. 12 Issue 9, p21 

    The author reflects on the elimination of physical education (PE) from the schedule of student athletes. She states that eliminating PE from the schedule would give them an extra 40-minute jump on homework so they would not have to stay up all night. She argues that PE was implemented to keep...

  • BODY COMPOSITION AND PHYSICAL APTITUDE OF ATHLETES OF MASCULINE FUTSAL FROM PONTA GROSSA. Levandoski, Gustavo; Cieslak, Fabrício; dos Santos, Thiago Krzesinski; de Carvalho, Flamarion Krum; Rocha, Alessandro Moroni Barbosa; Ogg, Fabiano // Fitness & Performance Journal (Online Edition);Jan/Feb2009, Vol. 8 Issue 1, p27 

    Introduction: The studies that supply information on the motor evaluation of individual and collective sportive teams have as objective to compare and to analyze physical characteristics and similar motor standards between athletes of diverse modalities. The current study aims to describe some...

  • Give Cardio a Kick. Agoglia, John // Fitness Business Pro;Sep2005, Vol. 21 Issue 9, p76 

    Focuses on the offering of niche classes for specialized athletes and new mothers by Asphalt Green through its Triathlon Club in New York. Amenities available at a high-performance sports facility; Facilitation of scheduled classes and seasonal programs which are fee-based; Increase in the...

  • HELP THROUGH THE ROUGH SPOTS.  // Club Industry (07478283);Feb2004, Vol. 20 Issue 2, p54 

    Offers tips on developing a mentoring relationship in health and athletic clubs. Difference between formal and informal mentoring programs; Reason for the difficulty in establishing mentoring programs in small clubs; Activities that may be shared by the mentor and the mentee.

  • POWER & GLORY.  // Muscle & Fitness Hers;Aug2004, Vol. 5 Issue 6, p66 

    Looks at the importance of physical training that is behind every athlete's victory.

  • Development of a Wearable Motion Detector for Telemonitoring and Real-Time Identification of Physical Activity. Che-Chang Yang; Yeh-Liang Hsu // Telemedicine & e-Health;Jan2009, Vol. 15 Issue 1, p62 

    This study presents the design of a portable, wearable, microprocessor-based accelerometer to measure real-time physical activity. An algorithm was developed to process the data. Activity data (falls, movement, etc.) can be detected and forwarded by short message service to a caregiver for...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics