the aim of the present study was to investigate the effect of contextual interference on balance of mentally retarded people. for this purpose, 40 educable and mentally retarded boys in qazvin city (mean age 24.45 ± 3.120) were randomly divided into two groups: blocked and random practice. after the pretest, given their practice arrangement, subjects in each group performed their workout for 4 ...

PURPOSE The number of familiarization sessions in fitness assessments seems to be critical and inconsistent. Therefore, the primary aim of this research was to determine the number of familiarization attempts that stabilize the results in particular physical fitness tests. The secondary aim was to establish the test reliability through familiarization sessions. METHODS Thirty-nine primary sch...

Neuroimaging studies have shown both dorsolateral prefrontal (DLPFC) and inferior parietal cortex (iPARC) activation during probabilistic association learning. Whether these cortical brain regions are necessary for probabilistic association learning is presently unknown. Participants' ability to acquire probabilistic associations was assessed during disruptive 1 Hz repetitive transcranial magne...

Methodology Selected to Meet the Goals Within a two-day home office visit by the selected participants, we could not run one-at-a-time test sessions of all four software programs. Therefore, we decided to run concurrent sessions for each software program. Combining two of the software programs into one test, we ran a total of three tests, each in 12 concurrent sessions. This approach met the go...

the aim of this study was to evaluate blocked, random, gradual incremental and gradual decremental practice schedules on the acquisition and retention of different types of basketball pass (overhead, hand chest , single arm with dominate hand) in 8-10-year-old girls. for this purpose, 60 female students of second, third and fourth grade of elementary school were voluntarily selected and randoml...

BACKGROUND The Center for Disease Control and Prevention recommends that high-risk groups, like sexually active men who have sex with men (MSM), receive HIV testing and counseling at least annually. The objective of this study was to investigate the relationship between voluntary repeat HIV testing and sexual risk behavior in MSM receiving rapid serologic and nucleic acid amplification testing....

the purpose of the present study was to compare the effects of two methods of self-modeling and video demonstration of an expert on the acquisition and retention of volleyball serve skill. participants were 30 students (aged between 12 and 14) who were assigned into two homogeneous groups after the pretest. the self-modeling group (n = 15) watched their performances in the criterion task via a ...