BACKGROUND Total, single repetition and contraction-phase specific (concentric and eccentric) time-under-tension (TUT) are important exercise-descriptors, as they are linked to the physiological and clinical response in exercise and rehabilitation. OBJECTIVE To investigate the validity and reliability of total, single repetition, and contraction-phase specific TUT during shoulder abduction ex...

Repetition normally enhances memory. While in some cases the benefit of added repetition may be incremental, few would expect that massed repetition could actually reverse the benefits of brief repetition. Here we report two experiments that document a clear example of a paradoxical effect of massed repetition. Subjects first repeated words (e.g., "sheep") aloud one at a time for 0, 5, 10, 20, ...

This study examined how aging affects the spatial patterns of repetition effects associated with perceptual priming of unfamiliar visual objects. Healthy young (n = 14) and elderly adults (n = 13) viewed four repetitions of structurally possible and impossible figures while being scanned with blood oxygenation level-dependent functional magnetic resonance imaging. Although explicit recognition ...

Introduction: Balanced SSFP (bSSFP) enables rapid image acquisition with high SNR but elicits an undesirable bright fat signal. Several steady-state sequence designs permit varying degrees of spectral shaping, allowing the fat signal to be suppressed by designing a stopband centered around the lipid resonant frequency [1-3]. Previous work on multiple repetition time (multi-TR) bSSFP has often r...

Two experiments were performed in an attempt to evaluate explanations of repetition priming-the facilitation observed when the same word is processed a second time in the same task. One task employed was lexical decision (word/nonword) and the other was ambiguity decision (ambiguous/ unambiguous). In the first experiment, transfer on a lexical decision task was measured following either a lexic...

OBJECTIVE Workplace studies have linked hand/wrist tendinosis to forceful and repetitive hand exertions, but the associations are not consistent. We report findings from a prospective study of right wrist tendinosis among blue-collar workers. METHODS Workers (N=413) at four industries were followed for 28 months with questionnaires and physical examinations every 4 months to identify incident...

The aim of the reported experiments was to investigate the persistence of global/ local level-repetition effects in an identification task with hierarchical stimuli. In the first experiment the trial rate was self paced, and cues were available during the unconstrained preparation interval. Nevertheless, significant level-repetition effects occurred, which were similar for shifts from global to...

Stimulus repetition often leads to facilitated processing, resulting in neural decreases (repetition suppression) and faster RTs (repetition priming). Such repetition-related effects have been attributed to the facilitation of repeated cognitive processes and/or the retrieval of previously encoded stimulus-response (S-R) bindings. Although previous research has dissociated these two forms of le...

Eight resistance-trained men completed three protocols separated by 48-96 hours. Each protocol included 36 repetitions with the same rest duration, but the frequency and length of rest periods differed. The cluster sets of four (CS4) protocol included 30 s of rest after the 4th, 8th, 16th, 20th, 28th, and 32nd repetition in addition to 120 s of rest after the 12th and 24th repetition. For the o...