Lorrie Brilla

Improving Health Information Literacy

Abstract Objectives: After this lesson, students should be able to (1) identify possible problems associated with online information; (2) define health information literacy; and (3) list at least three criteria to evaluate the quality of websites related to health information literacy. Target Audience: High school and lower-division college students.

Creatine-electrolyte supplementation improves repeated sprint cycling performance: A double blind randomized control study

BackgroundCreatine supplementation is recommended as an ergogenic aid to improve repeated sprint cycling performance. Furthermore, creatine uptake is increased in the presence of electrolytes. Prior research examining the effect of a creatine-electrolyte (CE) supplement on repeated sprint cycling performance, however, did not show post-supplementation improvement. The purpose of this double blind randomized control study was to investigate the effect of a six-week CE supplementation intervention on overall and repeated peak and mean power output during repeated cycling sprints with recovery periods of 2 min between sprints.MethodsPeak and mean power generated by 23 male recreational cyclists (CE group: nu2009=u200912; 24.0u2009±u20094.2xa0years; placebo (P) group: nu2009=u200911; 23.3u2009±u20093.1xa0years) were measured on a Velotron ergometer as they completed five 15-s cycling sprints, with 2 min of recovery between sprints, pre- and post-supplementation. Mixed-model ANOVAs were used for statistical analyses.ResultsA supplement-time interaction showed a 4% increase in overall peak power (pre: 734u2009±u200975xa0W; post: 765u2009±u200971xa0W; pu2009=u20090.040; ηp2u2009=u20090.187) and a 5% increase in overall mean power (pre: 586u2009±u200972xa0W; post: 615u2009±u200974xa0W; pu2009=u20090.019; ηp2u2009=u20090.234) from pre- to post-supplementation for the CE group. For the P group, no differences were observed in overall peak (pre: 768u2009±u200995xa0W; post: 772u2009±u2009108xa0W; pu2009=u20090.735) and overall mean power (pre: 638u2009±u200977xa0W; post: 643u2009±u200992xa0W; pu2009=u20090.435) from pre- to post-testing. For repeated sprint analysis, peak (pre: 737u2009±u200988xa0W; post: 767u2009±u200992xa0W; pu2009=u20090.002; ηp2u2009=u20090.380) and mean (pre: 650u2009±u200992xa0W; post: 694u2009±u200987xa0W; pu2009<u20090.001; ηp2u2009=u20090.578) power output were significantly increased only in the first sprint effort in CE group from pre- to post-supplementation testing. For the P group, no differences were observed for repeated sprint performance.ConclusionA CE supplement improves overall and repeated short duration sprint cycling performance when sprints are interspersed with adequate recovery periods.

Eccentric, Concentric, And Isometric Strength In Trained And Untrained Older Adults: 153 Board #4 May 27, 9

The process of aging includes changes in muscle and connective tissue architecture and function, increased stiffness, loss of strength and functionality. Nonetheless, older adults are able to maintain eccentric (ECC) strength levels in a greater proportion, when compared to maintaining isometric (ISO) strength and concentric (CON) strength. The purpose of this study was to compare CON, ECC and ISO leg extension torque between trained (T) and untrained (U) older adults. Twenty older adults (60 years and older) who had no knee pathologies were recruited. A Biodex dynamometer was used to measure leg extensor torque for ISO, CON and ECC, in T and U subjects. Torque values relative to body weight (relative torques) were determined for each subject and compared between groups. The ratio of ECC: ISO was calculated and compared across groups. The T group were significantly stronger for ISO (p = 0.009). No significant differences were found for CON (p = 0.088) and ECC (p = 0.220). In addition, the U group registered a significantly higher ratio of ECC: ISO (p = 0.029), when compared to the T group. The findings in this study demonstrate older adults are able to maintain ECC, regardless of training status.

Effect of Inspiratory Muscle Training and Core Exercise Training on Core Functional Tests: 3164

Brilla LB, Kauffman TH. Effect of Inspiratory Muscle Training and Core Exercise Training on Core Functional Tests. JEPonline 2014;17(3):12-20. This study tested the effects of inspiratory muscle training on core function compared to a typical core training program. Subjects consisted of 32 healthy, recreationally active individuals (18-25 yrs of age) who were randomly assigned to one of three groups: Control (C), Inspiratory Muscle Training (IMT), and Core Exercise Class (AbEx). IMT performed inspiratory muscle training for 6 wks at 85% maximal inspiratory pressure (MIP), while AbEx performed standard core training of the same duration. Core function was assessed preand post-training using a side bridge, prone extension and Stabilizer test of transversus abdominis (TrA) function. MIP was also assessed before and after the treatment. Significant interaction effect was observed for MIP (P≤0.05). IMT MIP increased from 1.06 ± 0.37 to 1.71 ± 0.41 cm H2O (P≤0.05) with no significant pre-post changes in C (1.09 ± 0.29 to 1.15 ± 0.36 cm H2O) or AbEx (0.78 ± 0.31 to 0.88 ± 0.33 cm H2O). A significant interaction effect was noted in prone extension (P≤0.05). Time increased in AbEx from 114.0 ± 53.0 to 154.0 ± 77.6 sec (P≤0.05), with no significant changes in C (158.9 ± 75.5 to 152.1 ± 62.6 sec) or IMT (132.0 ± 39.2 to 132.8 ± 40.3 sec). A significant interaction for the Stabilizer test of TrA function was found (P≤0.05). The IMT group improved from -6.9 ± 12.6 to -10.0 ± 11.0 mmHg (P≤0.05), with no significant changes in the Control (-5.0 ± 12.1 to -4.8 ± 13.4 mmHg) or AbEx groups (-15.0 ± 5.8 to -9.7 ± 10.4 mmHg). There were no significant differences (P≥0.05) in the side bridge test. Six weeks of core training and inspiratory muscle training improve core function and target different muscles.