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International Journal of Exercise Science: Conference Proceedings

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Reliability Of The Omron Hbf-500 Body Composition Monitor, Rodrigo G. Perez, Michael I. Pribyl, John D. Smith Feb 2009

Reliability Of The Omron Hbf-500 Body Composition Monitor, Rodrigo G. Perez, Michael I. Pribyl, John D. Smith

International Journal of Exercise Science: Conference Proceedings

The Omron HBF-500 incorporates both hand-to-hand and foot-to-foot electrical impedance technology. At this time, the authors are not aware of any studies examining the consistency of this monitor. PURPOSE: To assess the reliability of the Omron HBF-500 body composition monitor. METHODS: Twelve men and six women signed an informed consent and participated in the study (32.4±8.7 years, 169.9±7.5 cm, 81.4±15.9 kg, 28.2±5.5 kg.m-2). Participants reported to the laboratory on three separate occasions separated by at least one day and within one week. Participants were asked to refrain from exercise and caffeine on the days of testing and, were asked to …

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Lower Extremity Kinetics In High And Low-Arched Athletes During Landing, Elizabeth T. Chalambaga, Douglas Powell, Doug Renshaw, Matthew Bice, Benjamin Long Feb 2009

Lower Extremity Kinetics In High And Low-Arched Athletes During Landing, Elizabeth T. Chalambaga, Douglas Powell, Doug Renshaw, Matthew Bice, Benjamin Long

International Journal of Exercise Science: Conference Proceedings

Abnormal foot function has been associated with an increased rate of injury in the athletic population. It has been shown that high-arched (HA) and low-arched (LA) athletes experience different injury patterns. These may be the manifestation of different loading and joint torque patterns in HA and LA athletes. It has been shown that HA and LA athletes have unique kinematic and kinetic patterns during running. However, little research has examined ground reaction forces (GRF) and lower extremity joint kinetics in HA and LA athletes during landing tasks. PURPOSE: To examine GRF and knee and ankle joint torques in HA and …

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The Effects Of Insoles On Loading Rate In Level Running, Crystal Ruano, Douglas Powell, Doug Renshaw, Elizabeth Chalambaga, Matthew Bice Feb 2009

The Effects Of Insoles On Loading Rate In Level Running, Crystal Ruano, Douglas Powell, Doug Renshaw, Elizabeth Chalambaga, Matthew Bice

International Journal of Exercise Science: Conference Proceedings

Introduction: Running is one of the most popular recreational sports in America with over 250 million regular runners. Recreational and competitive runners often experience over-use injuries including plantar fasciitis, Achilles tendinitis and stress fractures. Previous research has shown that the transmission of ground reaction force through the lower extremity leads to these over-use injuries; however, it is not solely the magnitude of vertical ground reaction forces, but also the rate at which these forces are applied that may lead to lower extremity injury. Many recreational runners will use over-the-counter insoles as a method of treating an injury or as a …

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Effects Of Hypovolemia On Cerebral Blood Velocity And Autoregulation During Upright Tilt: Implications For Post-Spaceflight Orthostasis, Steven A. Romero, Eren R. Sanborn, Gilbert Moralez, William H. Cooke Feb 2009

Effects Of Hypovolemia On Cerebral Blood Velocity And Autoregulation During Upright Tilt: Implications For Post-Spaceflight Orthostasis, Steven A. Romero, Eren R. Sanborn, Gilbert Moralez, William H. Cooke

International Journal of Exercise Science: Conference Proceedings

Orthostatic stability depends on maintenance of adequate cerebral blood flow. Orthostatic instability experienced by returning astronauts is associated with microgravity-induced hypovolemia, suggesting that hypovolemia may disrupt the ability of the cerebral vasculature to regulate blood flow. PURPOSE: To test the hypothesis that hypovolemia reduces cerebral blood velocity and impairs cerebral autoregulation (CA) during upright tilt. METHODS: Nine males (age 23 ± .5 yrs; height 172 ± 2 cm; weight 87 ± 3 kg; mean ± SE) were tilted head-up to 70° on two occasions separated by at least 5 days under euhydration (EUH) and dehydration (DEH) conditions. Dehydration was induced …

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Pedometer Accuracy In Lower Limb Amputees: A Pilot Study, Gary Guerra, John D. Smith, Patricia Holmes, Ed Khu, Imelda Pena Feb 2009

Pedometer Accuracy In Lower Limb Amputees: A Pilot Study, Gary Guerra, John D. Smith, Patricia Holmes, Ed Khu, Imelda Pena

International Journal of Exercise Science: Conference Proceedings

To date there have been no studies examining the accuracy of the pedometer on lower limb amputees. PURPOSE: To measure the accuracy of pedometers in lower limb amputees. METHODS: Four participants (Table 1) had their height and weights measured and were then fitted with a Velcro Walk4Life™ pedometer belt (Walk4Life Inc, Plainfield, IL) around the waistline at the hip. They were then fitted with two pedometers: a SW-701 Digiwalker™ (NEW-LIFESTYLES, Inc., Lee's Summit, MO) spring-levered pedometer on the anterior mid-line of the right hip and a New-Lifestyles® NL-800 (NEW-LIFESTYLES, Inc., Lee's Summit, MO) piezoelectric pedometer just laterally to the SW-701. …

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Accuracy Of The Omron Hbf-500 Body Composition Monitor, Michael I. Pribyl, Rodrigo Perez, John D. Smith, Christopher M. Hearon, G Richard Grimes Feb 2009

Accuracy Of The Omron Hbf-500 Body Composition Monitor, Michael I. Pribyl, Rodrigo Perez, John D. Smith, Christopher M. Hearon, G Richard Grimes

International Journal of Exercise Science: Conference Proceedings

The Omron HBF-500 is a relatively new and inexpensive body composition monitor that incorporates both hand-to-hand and foot-to-foot electrical impedance technology. At this time, the authors are not aware of any studies examining the accuracy of this monitor. PURPOSE: To assess the accuracy of the Omron HBF-500 body composition monitor using the BOD POD as a criterion. METHODS: Sixteen men and 23 women signed an informed consent and participated in the study (22.7±3.7 years, 168.8±9.1 cm, 73.8±17.8 kg, 25.7±5.6 kg.m-2). Participants were asked to refrain from exercise and caffeine on the day of testing, and were asked not eat a …

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Influence Of Caloric Expenditure On Postprandial Triglyceride And Glucose Responses Following A High-Carbohydrate Meal, James Rowe, Heidi Bistrup, Kelley Henry, Melinda Villarreal, Kyle D. Biggerstaff, Vic Ben-Ezra Feb 2009

Influence Of Caloric Expenditure On Postprandial Triglyceride And Glucose Responses Following A High-Carbohydrate Meal, James Rowe, Heidi Bistrup, Kelley Henry, Melinda Villarreal, Kyle D. Biggerstaff, Vic Ben-Ezra

International Journal of Exercise Science: Conference Proceedings

Purpose: To examine the effects of aerobic exercise expending 350 and 700 kcal of energy on postprandial triglyceride (Tg) and glucose responses following a high carbohydrate (CHO) meal. Methods: Non-active individuals (n=9 women/4 men; age=22.8±3.7 yrs; Ht=169±10.4 cm; Wt=75.7± 22.4 kg; BMI=26.1±5.8 kg/m2; VO2 max=34.1±6.9 ml/kg/min) completed three trials in a random order: 1) control trial, 2) single exercise session expending 350 kcal (EX350), and 3) single exercise session expending 700 kcal (EX700). Exercise consisted of treadmill walking at 60% VO2 max until 350 and 700 kcal of energy had been expended. The control session consisted of seated rest. The …

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Responses Of Lipids And Lipoproteins Following Acute And Training Resistance Exercise In Obese Postmenopausal Women, Ronique N. Pleasant, Melinda Villarreal, Joshua S. Wooten, Robert M. Hein, Robert D. Menzies, Melody D. Phillips Feb 2009

Responses Of Lipids And Lipoproteins Following Acute And Training Resistance Exercise In Obese Postmenopausal Women, Ronique N. Pleasant, Melinda Villarreal, Joshua S. Wooten, Robert M. Hein, Robert D. Menzies, Melody D. Phillips

International Journal of Exercise Science: Conference Proceedings

A single aerobic session and aerobic training can favorably modify lipids and lipoproteins in postmenopausal women, but the effects of a single resistance exercise session (RE) and resistance training (RT) remain equivocal. PURPOSE: To determine the acute effects of RE and chronic effects of 12 weeks of RT on lipid and lipoprotein-cholesterol concentrations in obese, postmenopausal women. METHODS: Sedentary, obese, non-smoking, postmenopausal women, not taking HRT, were divided into either an exercise group (E, n = 10; age = 65.7 ± 1.8 y; BMI = 32.6 ± 3.5 kg/m2) or control group (C, n = 11; …

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A Meta-Analysis Of Biomarkers Associated With The Overtraining Syndrome, Alissa Donaldson, Frank B. Wyatt, Elise Brown, Tyler Fagan Feb 2009

A Meta-Analysis Of Biomarkers Associated With The Overtraining Syndrome, Alissa Donaldson, Frank B. Wyatt, Elise Brown, Tyler Fagan

International Journal of Exercise Science: Conference Proceedings

Overtraining (OT) syndrome has been investigated extensively with little agreement as to reliable markers for detection. A meta-analytic review is a procedure designed to compile studies in an area with hopes of reaching a consensus view. PURPOSE: The purpose of this meta-analysis was to provide summary quantitative findings of biomarkers (i.e., blood) associated with the overtraining syndrome. METHODS: A meta-analytic research design was utilized to investigate selected studies allowing for a coding process to record data. Thirteen studies met inclusion/exclusion criteria. Biomarkers included samples taken with subjects in normal (N) condition and during OT. These biomarkers were the following: glutamine …

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Influence Of Menopausal Status On Lipids And Lipoproteins And Fat Mass Distribution: The Pioneer Project, Melinda Villarreal Ms., Ronique Pleasant, Nancy M. Dimarco, Barney C. Sanborn, Joshua S. Wooten Feb 2009

Influence Of Menopausal Status On Lipids And Lipoproteins And Fat Mass Distribution: The Pioneer Project, Melinda Villarreal Ms., Ronique Pleasant, Nancy M. Dimarco, Barney C. Sanborn, Joshua S. Wooten

International Journal of Exercise Science: Conference Proceedings

Following menopause, fat redistribution and increased risk for dyslipidemia are common. The influence of menopause; however, on the associations between total and regional fat mass with lipids and lipoproteins remains unclear. PURPOSE: The purpose of this investigation was to determine the influence of menopausal status on associations between total and regional fat mass and lipids and lipoproteins. METHODS: Sedentary, non-smoking women (n=209) were grouped based on current menstrual status: premenopausal (n=143, mean±SD; age=42.7±7.7 yr, BMI=24.5±4.0 kg•m -2, WC=77.4±9.9 cm) or postmenopausal (n=66, mean±SD; age=52.9±5.3 yr, BMI= 24.9±4.2 kg•m -2, WC=78.8±9.9 cm). Fasting (12 hr) serum samples …

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Psychological Markers Of The Overtraining Syndrome, Elise Brown, Frank B. Wyatt, Alissa Donaldson Feb 2009

Psychological Markers Of The Overtraining Syndrome, Elise Brown, Frank B. Wyatt, Alissa Donaldson

International Journal of Exercise Science: Conference Proceedings

The overtraining (OT) syndrome is characterized by performance plateaus and decrements and is manifested through various physiological and psychological variables. A qualitative review will summarize specific factors associated with OT to better understand this syndrome. PURPOSE: The purpose of this review is to summarize psychological aspects associated with the OT syndrome. METHODS: This study reviewed 13 articles that qualified for the inclusion/exclusion criteria. The variables measured include tension, anger, fatigue, confusion, depression, vigor, sleep, stress, and self-perceptions of physical status. Participants were measured during a normal (N) phase, midway phase (MW), and OT phase. In the review, selected variables (i.e., …

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