Table 4.

Characteristics of research studies evaluating athletic performance on sport-specific exercise tasks

Citation	Participants	VO2 max	Dh protocol; ambient temperature; duration	Total REC (min)	Dh trial BM loss (%)	Fluid type	Fluid assimilation time (min)	Fluid intake (L∙kg BM lost−1)	Sport-specific exercise task	Performance outcomes(s)	Performance outcomes significantly affected (Hedges’ g)
Devlin et al. (2001b) [71]	7 M, sub-elite cricketers	56 ± 6	EX; 28 °C; 60 min	0	2.8	Water	60	0.80	Cricket bowling	Accuracy (line and length); velocity	↑ Bowling accuracy for line (0.85) and length (0.85)
Ali et al. (2011) [35]	10 (0 M), soccer players	47 ± 4	EX; 17 °C; 90 min	0	1.4	Water	90	1.07	hLSPT	Movement time; penalty time; performance time	No effect
Fritz et al. (2013) [72]	13 M, elite squash players	NS	EX	NS	1.3	Water	NS	0.40	iGhosting Test	TT	↓ (0.55)
Owen et al. (2013c) [59]	13 M, semi-professional soccer players	54 ± 3	EX; 19 °C; 105 min	5	2.5	Water	110	0.89	hLSPT	Movement time; penalty time; performance time	No effect
									jLSST	Time taken; shot speed; points per shot	No effect
Owen et al. (2013d) [59]	13 M, semi-professional soccer players	54 ± 3	EX; 19 °C; 105 min	5	2.5	Water	110	0.51	hLSPT	Movement time; penalty time; performance time	No effect
									jLSST	Time taken; shot speed; points per shot	No effect
Wilson et al. (2014) [60]	8 M, licenced jockeys	NS	EX; 20 °C; 45 min	0	1.8	Water	~35	1.00	Simulated race ride	Pushing frequency	↑ (1.46)
									Go-No-Go task	SRT	No effect

Values are Hedges’ g effect sizes

Dh dehydration, EX exercise, LIST Loughborough Intermittent Sprinting Test, LSPT Loughborough Soccer Passing Test, LSST Loughborough Shooting Test, Max. maximum, NS not specified, RH relative humidity, SRT simple reaction time, Total REC time from completing the dehydration protocol to commencing the subsequent task, TT time trial