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Articles 31 - 35 of 35
Full-Text Articles in Sports Sciences
The Effects Of Lean Beef Supplementation On The Iron Status Of College Athletes, Jocelyn Johnson, Danielle Burke, Matthew Vukovich, Kendra Kattelmann
The Effects Of Lean Beef Supplementation On The Iron Status Of College Athletes, Jocelyn Johnson, Danielle Burke, Matthew Vukovich, Kendra Kattelmann
Health and Nutritional Sciences Faculty Publications
The purpose of this study was to determine whether weekly supplementation with nine ounces of prepackaged lean beef sticks could maintain the iron status of college endurance athletes. Thirty-four college endurance athletes (20 female, 14 male) were stratified by sex, baseline serum ferritin concentration, and use of iron supplements, and randomized into an intervention (n = 18) or control (n = 16) group. The participants in the intervention group supplemented their usual diet with nine ounces of prepackaged lean beef sticks per week and a daily multivitamin/mineral supplement containing 18 mg iron. The participants in the control group consumed their …
Effect Of Different Collegiate Sports On Cortical Bone In The Tibia, L. A. Weidauer, M. M. Eilers, T. L. Binkley, M. D. Vukovich, B. L. Specker
Effect Of Different Collegiate Sports On Cortical Bone In The Tibia, L. A. Weidauer, M. M. Eilers, T. L. Binkley, M. D. Vukovich, B. L. Specker
Health and Nutritional Sciences Faculty Publications
Objectives: The purpose of this study was to determine the effect of sports participation on cortical bone in the tibia. Methods: 53 female collegiate athletes (25 cross-country, 16 soccer, and 12 volleyball) and 20 inactive controls had the left distal 20% tibia scanned by pQCT. Cortical volumetric BMD (vBMD) was measured within the cortical shell at the anterior, posterior, medial, and lateral regions and standard deviations were calculated. Results: Total vBMD was greater in the control group (1161±5 mg/mm3) than each of the sports (p<0.05). Soccer players (1147±5 mg/mm3) had greater vBMD than volleyball players (1136±7 mg/mm3) (p<0.05), but similar to cross-country runners (1145±5 mg/mm3). Cortical thickness was greatest in soccer players (4.1±0.1 mm), while cross-country and control subjects (3.8±0.1 mm) had greater thickness than volleyball players (3.4±0.1 mm)(p<0.05). Periosteal circumference was greater in volleyball players (71±1.4 mm) than soccer, cross-country, and control subjects (68±0.9, 69±0.8, and 66±1 mm, respectively; all, p<0.05). vBMD variation within the cortical shell was greater among control subjects (70±6 mg/cm3) than each of the athlete groups, with soccer players having lower variation than cross country runners (within-in person SD 36±6 mg/cm3 and 54±5 mg/cm3 respectively; p<0.05). Conclusion: These results indicate bone geometry and distribution within the cortical shell of the tibia …
Effects Of Lean Beef Supplementation On Iron Status, Body Composition And Performance Of Collegiate Distance Runners, Danielle E. Burke, Jocelyn V. Johnson, Matthew D. Vukovich, Kendra K. Kattelmann 6884045
Effects Of Lean Beef Supplementation On Iron Status, Body Composition And Performance Of Collegiate Distance Runners, Danielle E. Burke, Jocelyn V. Johnson, Matthew D. Vukovich, Kendra K. Kattelmann 6884045
Health and Nutritional Sciences Faculty Publications
Iron deficiency is prevalent among endurance athletes, particularly females. Low iron may compromise oxygen delivery and physical performance. Vegetarianism, desire for convenience, and perceived health risks associated with red meat contribute to low bioavailable iron intakes. The purpose of this study was to examine if lean beef supplementation would maintain iron status, improve body composition and increase performance of distance runners after 8 weeks. Twenty-eight (14 female) Division-I cross-country runners were stratified by iron status, use of iron supplements, and gender, and randomized into a control (n = 14) and intervention group. All participants maintained their typical diet and consumed …
The Effect Of A Commercially Available Caffeine Based Dietary Supplement On 40-Kilometer Time Trial Performance, Lee A. Weidauer
The Effect Of A Commercially Available Caffeine Based Dietary Supplement On 40-Kilometer Time Trial Performance, Lee A. Weidauer
Electronic Theses and Dissertations
Purpose: To determine wheather ot not the nutritional supplement PreRace containing L-Taurine, Citrulline Malate, Quercetin, DiMethyl Amino Ethanol, Caffeine, Metabromine, Catechin, and Malic acid will improve performance in an indoor 40 Kilometer cycling time trial.
Methods: Seven male cyclists ages 21-58 participated in a placebo-controlled investigation which consisted of two trials in which they consumed either the supplement PreRace or aloe vera juice. In each of the trials the placebo or supplement was mixed with a sports beverage. Subjects performed a 40 kilometer time trial and measurements of oxygen consumption and lactate were taken every 15 minutes as well as …
An Investigation Of The Validity Of Selected Submaximal Field Tests To Estimate Aerobic Capacity In Untrained Females, Barbara A. Moran
An Investigation Of The Validity Of Selected Submaximal Field Tests To Estimate Aerobic Capacity In Untrained Females, Barbara A. Moran
Electronic Theses and Dissertations
The purpose of this investigation was twofolds (1) to determine the validity of selected submaximal field tests used to estimate aerobic capacity, and (2) to determine the association of maximal oxygen consumption with the performance of selected submaximal field test. Eighteen females (X = l.9.4 yrs) volunteered to be Ss. Prior to the first two field tests, anthropometric data of ht and wt were collected and %BF, FW, and FFW were computed from skinfold measurements. The field tests investigated were the 12 min run, the 600 yd run, and the QCST. All measurements were analyzed for reliability and reproducibility by …