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Full-Text Articles in Kinesiology
The Acute Effect Of Walking On Ultrasound Measurements From The Achilles Insight Ultrasonometer In College-Aged Individuals, Kristin J. Heumann, Jacob Cimolino, Jeremy R. Hawkins, Robert W. Pettitt, Steven Ross Murray
The Acute Effect Of Walking On Ultrasound Measurements From The Achilles Insight Ultrasonometer In College-Aged Individuals, Kristin J. Heumann, Jacob Cimolino, Jeremy R. Hawkins, Robert W. Pettitt, Steven Ross Murray
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 491-496, 2016. The Achilles InSight bone ultrasonometer is a portable ultrasound device for quantitatively measuring bone composition both safely and inexpensively via the calcaneus. The effect of acute, brisk walking as a possible source of error on the reliability of quantitative ultrasound (QUS) measurements was investigated. Forty-seven participants (17 women, 30 men; age M ± SD = 20.44 ± 1.16) had their calcaneus measured with the Achilles InSight both before and after a 15-min bout of walking at (5.63 km·h-1 (3.5 mph). The Achilles InSight was deemed reliable via a test-and-retest protocol (ICC α …
Manuscript Has Been Retracted, Michael Smith, Nicholas Hanson, Alexander Lucas, Steven Devor
Manuscript Has Been Retracted, Michael Smith, Nicholas Hanson, Alexander Lucas, Steven Devor
International Journal of Exercise Science
International Journal of Exercise Science 6(3) : 236-241, 2013. Manuscript has been retracted.
Aerobic Capacity And Postprandial Flow Mediated Dilation, Kevin D. Ballard†, James J. Miller‡, James H. Robinson†, Jennifer L. Olive‡
Aerobic Capacity And Postprandial Flow Mediated Dilation, Kevin D. Ballard†, James J. Miller‡, James H. Robinson†, Jennifer L. Olive‡
International Journal of Exercise Science
The consumption of a high-fat meal induces transient vascular dysfunction. Aerobic exercise enhances vascular function in healthy individuals. Our purpose was to determine if different levels of aerobic capacity impact vascular function, as measured by flow mediated dilation, following a high-fat meal. Flow mediated dilation of the brachial artery was determined before, two- and four-hours postprandial a high-fat meal in young males classified as highly trained (n = 10; VO2max = 74.6 ± 5.2 ml·kg·min-1) or moderately active (n = 10; VO2max = 47.3 ± 7.1 ml·kg·min-1). Flow mediated dilation was reduced at two- (p < 0.001) and four-hours (p < 0.001) compared to baseline for both groups but was not different between groups at any time point (p = 0.108). Triglycerides and insulin increased at two- (p < 0.001) and four-hours (p < 0.05) in both groups. LDL-C was reduced at four-hours (p = 0.05) in highly trained subjects, and two- and four-hours (p ≤ 0.01) in moderately active subjects. HDL-C decreased at two- (p = 0.024) and four-hours (p = 0.014) in both groups. Glucose increased at two-hours postprandial for both groups (p = 0.003). Our results indicate that a high-fat meal results in reduced endothelium-dependent vasodilation in highly trained and moderately active individuals with no difference between groups. Thus, high aerobic capacity does not protect against transient reductions in vascular function after the ingestion of a single high-fat meal compared to individuals who are moderately active.