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Table 5 Characteristics of research studies evaluating athletic performance on balance exercise tasks

From: The Effect of Fluid Intake Following Dehydration on Subsequent Athletic and Cognitive Performance: a Systematic Review and Meta-analysis

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Participants

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)

Balance exercise task

Performance outcomes(s)

Performance outcomes significantly affected (Hedges’ g)

Erkmen et al. (2010) [61]

17 M, physically active

EX (V); 21–24 °C; 60 min

Testing at 0 and 20 min

3.3

Water

60/80

1.00

One-leg stand static balance test

Eyes close and eyes open kOSI (0 min post-Dh)

Eyes close and eyes open kOSI (20 min post-Dh)

↓ Eyes open OSI 0 min post-Dh (1.12)

Ely et al. (2012a) [67]

32 M, unacclimated

EX; 50 °C; 3 h work/rest

90

4.1

NaCl + water

270

1.00

20-s dynamic balance test

kOSI; l mean deflection; time spent stable

(Testing at 10 °C, 20 °C, 30 °C and 40 °C)

No effect

  1. Exercise intensity is described as high (H), vigorous (V) or moderate (M), in accordance with classifications outlined by Norton et al. [86]. Values are Hedges’ g effect sizes
  2. Dh dehydration, EX exercise, OSI overall stability index, Total REC time from completing the dehydration protocol to commencing the subsequent task
  3. hDuring the Loughborough Soccer Passing Test (LSPT), participants completed a random sequence of eight short and long passes of a soccer ball towards a target, as quickly as possible with the fewest time penalties
  4. iThe ‘Ghosting Test’ is a squash-specific movement test. Participants were instructed to collect a half-ball that was placed on three racquets positioned around the court, move to the ‘T’, and then to the next racquet at the opposite corner as quickly as possible
  5. jDuring the In the Loughborough Shooting Test (LSST), participants were required to sprint ~12 m, then pass, control and shoot the ball at targets within the goal area
  6. kThe overall stability index (OSI) is an indicator of a subject’s ability to balance on a platform. A higher OSI indicates poorer balance performance
  7. lMean deflection was defined as the average position of the subject during the balance test. A higher mean deflection indicates more displacement and poorer balance performance
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