Table 1.
Categories of situational and environmental (independent) variables and performance indicators (dependent variables) and its definition and/or collection procedures.
Table 2.
Descriptive statistics.
Fig 1.
Effects of situational variables on the technical and physical performance of players of different positions.
Effects of match location and match result are shown as the standardised difference in each performance-related parameter when playing at home vs playing away, and in matches won vs not-won. Effects of team and opponent strength are shown as the effect of an increase of two standard deviations in the log of rank difference on the standardised change score of each performance-related parameter. Bars are 99% compatibility intervals. Dotted lines represent the smallest worthwhile difference/change. Asterisks indicate the likelihood for the magnitude of the true effect as follows: * possible; ** likely; *** very likely; **** most likely. Asterisks located in the trivial area denote the likelihood of trivial effects.
Fig 2.
Effects of WBGT and humidity on the technical and physical performance of players of different positions.
Effects are shown as the effect of an increase of two standard deviations in the value of WBGT and humidity on the standardised change score of each performance-related parameter. Dotted lines represent the smallest worthwhile change. Asterisks indicate the likelihood for the magnitude of the true effect as follows: ** likely; *** very likely; **** most likely. Asterisks located in the trivial area denote the likelihood of trivial effects.
Fig 3.
Effects of ground condition on the technical and physical performance of players of different positions.
Effects are shown as the standardised difference in each performance-related parameter when playing on low-wear, average-wear, and heavy-wear ground vs playing on no-wear ground. Bars are 99% compatibility intervals. Dotted lines represent the smallest worthwhile difference. Asterisks indicate the likelihood for the magnitude of the true effect as follows: * possible; ** likely; *** very likely; **** most likely. Asterisks located in the trivial area denote the likelihood of trivial effects.
Fig 4.
Effects of weather condition on the technical and physical performance of players of different positions.
Effects are shown as the standardised difference in each performance-related parameter when playing in light-rain, heavy-rain, and snowy conditions vs playing in sunny conditions. Bars are 99% compatibility intervals. Dotted lines represent the smallest worthwhile difference. Asterisks indicate the likelihood for the magnitude of the true effect as follows: * possible; ** likely; *** very likely; **** most likely. Asterisks located in the trivial area denote the likelihood of trivial effects.