Changes

** There is often a lack of [[Motivation]] or a change in [[Motivation]] so that a fear of failure is the dominant driving force rather than a desire to succeed.

* '''General fatigue'''<ref name="OTDepression"/>. This fatigue could be seen as a general feeling of weariness, or the desire to sleep more. This could be fatigue due to an illness, depression, or muscular fatigue.

** '''Elevated [[Resting Heart Rate]]'''<ref name="OTPhysioReview"/>. Changes in [[Resting Heart Rate]] have been associated with many cases of [[Overtraining Syndrome]]. While this can be a useful symptom to monitor for early detection of [[Overtraining Syndrome]], it is not reliable as an elevated [[Resting Heart Rate]] is not always seen with [[Overtraining Syndrome]]<ref name="OTEcssPos"/>, and in sometimes [[Overtraining Syndrome]] decreases [[Resting Heart Rate]] than increasing it<ref name="OvertraingInSport"/>.

** '''[[Heart Rate Variability]]''' has been suggested as another measure of recovery and [[Overtraining Syndrome]], but studies to date do not provide evidence of its usefulness. Measuring [[Heart Rate Variability]] requires a relatively expensive [[Heart Rate Monitor]] and is less convenient than checking [[Resting Heart Rate]] which can be measured with a [[Pulse Oximeter]].