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A persistent decline in performance due to high-volume, high-intensity training (over-training), which affects up to 2/3 of elite long-distance runners at some point in their careers Features Sleep disturbances; muscle soreness, perceptual changes—familiar routines seem more difficult—clinically significant depression

o·ver·train·ing syn·drome

(ō'vĕr-trān'ing sin'drōm)
A group of symptoms resulting from excessive physical training; includes fatigue, poor exercise performance, frequent upper-respiratory tract infections, altered mood, general malaise, weight loss, muscle stiffness and soreness, and loss of interest in high-level training.
Synonym(s): burnout, staleness.
References in periodicals archive ?
Training practices and staleness in 13-18-year-old swimmers: a cross-cultural study.
This staleness fosters a tendency to anticipate results rather than keeping alert to subtle but important changes in circumstances.
The non-Florentine Perugino symbolizes the staleness of Quattrocento painting, specifically because he recycled models and compositions, did not paint convincing nudes, and his figures evinced a certain timidity.
He says that historically foot care has been hurt by too much product duplication and what he sees as "general atmosphere of staleness.
This results in student preparation waning or the lessons themselves taking on a sameness or staleness.
You have to keep staleness out and retain what is new and fresh.
Aggressive training practices without adequate recovery can lead to staleness, overtraining syndrome, injury, and burnout, and this is not the exclusive domain of competitive athletes.
The occasional staleness of McCarthy's quintessentially midcentury voice as an essayist--its political fierceness, its axiomatic contempt for the tastes of the middle class--serves to point up the contrast with her novels, which remain fresh and even topical, particularly such masterpieces of social observation as The Company She Keeps (1942) and The Group (1963).
When a search warrant is based on probable cause for the presence of drug records, the staleness of the information is not nearly as important as it would be if the search was for drugs.
The sign of staleness is evidenced by a bitter taste, something nearly everyone associates with coffee.
Such an opening, utterly oblique in its contextualization yet quite specific in its generalized esthetico-ontological meditation of the act of writing/speaking and its relation to the real -- language's hesitation between its "freshness" and its becalmed flatness or staleness, its capacity for "encounter," contact, seeming access to the real and its self-clarifying, self-purifying, self-effacing propensity, to the point of referring no longer to the named but to some unnamedness -- such a text as this, not uncharacteristic of Du Bouchet's 1960 work, gives us a fleeting idea of the density and intensiveness of an oeuvre standing, today, as exceptional and exemplary.
Castoriadis sees signs of this flatness in the staleness of contemporary high culture, as well as in the mindlessness of contemporary popular culture.