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  • Author: Richard S. Farley x
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J. Bradley Jordan, Ajit Korgaokar, Richard S. Farley, John M. Coons and Jennifer L. Caputo

This study examined the effects of caffeine supplementation (6 mg·kg−1) on performance of a reactive agility test (RAT) in 17 elite, male, youth (M = 14 y) soccer players. Using a double-blind, repeated-measures design, players completed 4 days of testing on the RAT after a standardized warm-up. On day 1, anthropometric measurements were taken and players were accommodated to the RAT. On day 2, baseline performance was established. Caffeine or placebo conditions were randomly assigned on day 3 and the condition was reversed on day 4. Players completed 3 randomized trials of the RAT on days 2, 3, and 4 with at least 1 trial to the players’ dominant and nondominant sides. There were no significant differences among conditions in reaction time (RT) to the dominant side, heart rates at any point of measurement, or ratings of perceived exertion (RPE) after completion of the warm-up. Caffeine produced faster RT to the nondominant side (P = .041) and higher RPE at the conclusion of the RAT (P = .013). The effect on the total time (TT) to complete the agility test to the nondominant side approached significance (P = .051). Sprint time and TT to either side did not differ. Caffeine supplementation may provide ergogenic benefit to elite, male, youth soccer players.

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Brandi M. Eveland-Sayers, Richard S. Farley, Dana K. Fuller, Don W. Morgan and Jennifer L. Caputo

Background:

The benefits of physical fitness are widely acknowledged and extend across many domains of wellness. The association between fitness and academic achievement, however, remains to be clarified, especially in young children. Therefore, the purpose of this study was to examine the relationship between fitness and academic achievement in elementary school children.

Methods:

Data were collected from 134 third-, fourth-, and fifth-grade children. One-mile run time, body mass index, curl-up, and sit-and-reach data were collected from physical education instructors in Middle Tennessee. The percentage of questions answered correctly for the mathematics and reading/language arts sections of the Terra-Nova achievement test was taken as a measure of academic achievement.

Results:

A negative association (P < .01) was noted between 1-mile run times and mathematics scores (r = –.28), whereas a positive relationship (P < .05) was observed between muscular fitness and mathematics scores (r = .20). Relative to sex differences, inverse relationships (P < .05) were observed between 1-mile run times and reading/language arts and mathematics scores in girls (r = –.31 and –.36, respectively), but no significant associations were evident in boys.

Conclusions:

Results from this study support a link between specific components of physical fitness and academic achievement in elementary school children.

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David R. Dolbow, Richard S. Farley, Jwa K. Kim and Jennifer L. Caputo

The purpose of this study was to examine the cardiovascular responses to water treadmill walking at 2.0 mph (3.2 km/hr), 2.5 mph (4.0 km/hr), and 3.0 mph (4.8 km/hr) in older adults. Responses to water treadmill walking in 92 °F (33 °C) water were compared with responses to land treadmill walking at 70 °F (21 °C) ambient temperature. After an accommodation period, participants performed 5-min bouts of walking at each speed on 2 occasions. Oxygen consumption (VO2), heart rate (HR), systolic blood pressure (SBP), and rating of perceived exertion (RPE) were significantly higher during therapeutic water treadmill walking than during land treadmill walking. Furthermore, VO2, HR, and RPE measures significantly increased with each speed increase during both land and water treadmill walking. SBP significantly increased with each speed during water treadmill walking but not land treadmill walking. Thus, it is imperative to monitor HR and blood pressure for safety during this mode of activity for older adults.

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John M. Coons, Richard S. Farley, Jwa K. Kim and Jennifer L. Caputo

Edited by Kathleen Laquale