3 resultados para strength testing
em Brock University, Canada
Resumo:
The primary aim of this study was to determine if there were significant strength gains
achieved by children participating in the Hamilton Wentworth District School Board
Sport Academy Program. The secondary aim was to determine if the children
participating in the 26-week program achieved greater gains or if a plateau in strength
adaptations occurred following the 13-week session. The tertiary aim was to determine if
there were varying levels of response to the training stimulus between grade 7, grade 8
and grade 9 subjects. Ninety-eight (98) subjects completed a13-week RT program. 6RM
strength testing of the chest press, seated row and leg press were conducted prior to the
program. Subjects were tested following the 13-week training stimulus to determine if
strength gains were achieved and to assess the variation in strength adaptations between
the groups. Forty seven (47) subjects completed 26 weeks ofRT. Subjects' strength was
tested prior to starting the program, at week 13 of the program and at week 26 of the
program to determine the variation in adaptation over a 13 week program versus a 26-
week RT program. There were significant (p
Resumo:
Twenty-six sedentary, college-aged females were matched and randomly assigned to one of two groups. The massed group (n=13) completed 15 maximal isometric elbow flexion strength trials in one session, while the distributed group (n=13) performed five such contractions on three successive days. After a two-week and three month rest interval, both groups returned to perfonn another five maximal isometric elbow flexion strength trials to assess retention of any potential strength gains. Elbow flexion torque and surface electromyography (SEMG) of the biceps and triceps were monitored concurrently. There was a significant (P < 0.05) increase in strength in both groups from block one (first five contractions) to block four (first retest) and from block one to block five (second retest). Both groups exhibited a similar linear increasing (P < 0.05) trend in biceps root-mean-square (RMS) SEMG amplitude. A significant (P < 0.05) decrease in triceps RMS SEMG amplitude was found between block one and block four for the distributed group. However, a significant (P < 0.05) increase was then found between block one and five for the massed group, and between blocks four and five for distributed group. These results suggest that there is flexibility in resistive exercise schedules. An increase in neural drive to the agonist muscle continued throughout testing. This was accompanied by a reduction in antagonist co activation that was a short-tenn (two weeks) training effect, dissipated over the longer rest interval (three months).
Resumo:
This study attempted to manipulate self-presentational efficacy to examine the effect on social anxiety, social physique anxiety, drive for muscularity, and maximal strength performance during a one-repetition maximum (1-RM) chest press and leg press test. Ninety-nine college men with a minimum of six months of previous weight training experience were randomly assigned to complete a 1-RM protocol with either a muscular male trainer described as an expert or a lean male trainer described as a novice. Participants completed measures of self-presentation and body image prior to meeting their respective trainer, and following the completion of the 1-RM tests. Although the self-presentational efficacy manipulation was not successful, the trainers were perceived significantly differently on musculature and expertise. The group with the muscular, expert trainer reported higher social anxiety and attained higher 1-RM scores for the chest and leg press. Thus, trainer characteristics can affect strength performance and self-presentational concerns in this population.