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Stuart J. Cormack, Robert U. Newton and Michael R. McGuigan

Purpose:

To examine the acute and short-term responses of variables obtained during a single countermovement jump (CMJ1); repeated countermovement jump involving 5 consecutive efforts without a pause (CMJ5); and cortisol, testosterone, and testos-terone-to-cortisol ratio (T:C) to an elite Australian Rules Football (ARF) match with a view to determining which variables may be most useful for ongoing monitoring.

Methods:

Twenty-two elite ARF players participating in a preseason cup match performed a CMJ1 and a CMJ5 and provided saliva samples 48 h before the match (48pre), prematch (Pre), postmatch, 24 h post (24post), 72 h post (72post), 96 h post (96post), and 120 h post (120post). The magnitude of change in variables at each time point compared with Pre and 48pre was analyzed using the effect size (ES) statistic.

Results:

A substantial decrement in the pre- to postmatch comparison occurred in the ratio of CMJ1 Flight time:Contraction time (ES −0.65 ± 0.28). Cortisol (ES 2.34 ± 1.06) and T:C (ES −0.52 ± 0.42) displayed large pre- to postmatch changes. The response of countermovement variables at 24post and beyond compared with pre-match and 48pre was varied, with only CMJ1 Flight time:Contraction time displaying a substantial decrease (ES −0.32 ± 0.26) postmatch compared with 48pre. Cortisol displayed a clear pattern of response with substantial elevations up to 24post compared with Pre and 48pre.

Conclusion:

CMJ1 Flight time:Contraction time appears to be the most useful variable for monitoring neuromuscular status in elite ARF players due to its substantial change compared with 48pre and prematch. Monitoring cortisol, due to its predictable pattern of response, may provide a useful measure of hormonal status.

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Ming Fung Godfrey Lui, Hung Kay Daniel Chow, Wai Ming Kenny Wong and Wai Nam William Tsang

administration ( Slotten & Krekling, 1996 ). Saliva samples were collected from each participant before administering a dose and 1 hr later, and the concentration of melatonin was analyzed by enzyme-linked immunosorbent assay (using an ELISA kit supplied by IBL International, Hamburg, Germany). All of the

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Jason P. Brandenburg and Luisa V. Giles

period, an incremental exercise test was then conducted to determine VO 2 max. The final three visits served as experimental sessions. In each experimental session, participants completed an 8-km TT. Blood lactate, CMVJ, and DJ were assessed before the TT and during a 30-min recovery period. Saliva

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Helen G. Hanstock, Andrew D. Govus, Thomas B. Stenqvist, Anna K. Melin, Øystein Sylta and Monica K. Torstveit

Participants visited the lab for 2 consecutive days before and after the HIT intervention (Figure  1 ). On day 1, participants provided a rested, fasted venous blood sample and passive drool saliva sample to assess immune, stress, and nutritional biomarkers. Samples were collected between 06:00 and 08:00. On

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Neil D. Clarke, Darren L. Richardson, James Thie and Richard Taylor

consume the treatment beverage. Procedures On arrival at the athletics track, the body mass of each participant was recorded and saliva and capillary blood samples were collected before participants ingested the test drink (baseline). Then the participants performed their usual prerace standardized warm

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Nicholas D. Gilson, Caitlin Hall, Angela Renton, Norman Ng and William von Hippel

undertake the attention task because of the limited amount of time they had available for this test at the end of a workday. An additional 4 participants were not able to attend the laboratory on at least 1 workday and therefore did not provide EEG data or saliva samples for all 3 conditions. A total of 13

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André L. Estrela, Aline Zaparte, Jeferson D. da Silva, José Cláudio Moreira, James E. Turner and Moisés E. Bauer

controlled recovery period, that may be insufficient for individuals already exhibiting disruptions to all ostasis (e.g., perhaps due to regular very high-volume exercise training). After undertaking anthropometric measurements, a resting blood sample was collected and participants provided a saliva sample

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Kristin L. Jonvik, Jan-Willem van Dijk, Joan M.G. Senden, Luc J.C. van Loon and Lex B. Verdijk

arm. Supplements were ingested for 5 days at home, and the sixth dose was provided on the test day at the sports facility. Subjects underwent baseline and 2.5 hr postingestion measurements of plasma, saliva, and gastrointestinal tolerance questionnaires. Plasma and saliva were collected and analyzed

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Jahan Heidari, Jürgen Beckmann, Maurizio Bertollo, Michel Brink, K. Wolfgang Kallus, Claudio Robazza and Michael Kellmann

processes and residues of muscle damage related to performance and training responses. They are mainly assessed via blood samples, urine, and saliva, and show proneness to interindividual variability. 6 Creatine kinase (CK) is the most frequently used biochemical marker across a plethora of sport

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Gregory Knell, Deborah Salvo, Kerem Shuval, Casey Durand, Harold W. Kohl III and Kelley P. Gabriel

analysis of ‘compliant participants’ to those returning the data collection instrument with valid data. For example, saliva sampling costs approximately $20 each for the data collection instrument (not including postage). The lower cost, and the fact that the data collection instrument cannot be reused for