How much does sleep deprivation impair endurance performance? A systematic review and meta-analysis.

We conducted a systematic review and meta-analysis to investigate the effect of sleep deprivation on endurance performance, as well as possible effect-modifying factors. Searches were done in Pubmed, Web of Science, Embase, and Scopus on 12 July 2022. We additionally searched the bibliographic references and citations on Google Scholar of the papers whose full text was analyzed.

Perceived Exertion: Revisiting the History and Updating the Neurophysiology and the Practical Applications.

The perceived exertion construct creation is a landmark in exercise physiology and sport science. Obtaining perceived exertion is relatively easy, but practitioners often neglect some critical methodological issues in its assessment. Furthermore, the perceived exertion definition, neurophysiological basis, and practical applications have evolved since the perceived exertion construct's inception.

The peroneus reaction time during sudden inversion test: systematic review.

The purpose of the study was to determine whether peroneal reaction time is influenced by ankle's impairment in subjects with ankle injury assessed by surface electromyography. The studies were identified by electronic research by two independent reviewers at the following databases: MEDLINE (1966-2009), EMBASE (1980-2009), LILACS (1982-2009), CINAHL (1982-2009) and, SPORTDiscus (1975-2009). Studies were divided into following groups: I--subjects with injury (paired by the opposite limb); II--subjects with or without injury (paired by limbs from different subjects) and III--subjects with or without injury (other situations).

Influence of knee position on the postural stability index registered by the Biodex Stability System.

The importance of knee position for bodily stability is described by some authors, however Biodex Stability System (BSS) trials have not been used to assess the reliability and effects of different knee positions. The purposes of this study were to test the reliability of BSS indices using two knee positions in the measurement protocol (either permitting slight knee flexion or maintaining them locked in total extension) and to compare the BSS indices between these two knee positions. The measurements were taken of the Overall Stability Index (OSI), Anterior-Posterior Stability Index (APSI) and Medial-Lateral Stability Index (MLSI) during a 30s protocol which gradually and automatically increased in difficulty among 21 healthy female subjects (22.