The effect of mental fatigue on the performance of Australian football specific skills amongst amateur athletes

Weerakkody, Nivan; Taylor, Caroline J.; Bulmer, C.L.; Hamilton, D.B.; Gloury, J.; O'Brien, Nathan; Saunders, Jimmy; Harvey, Sam; Patterson, Tiffany

doi:10.1016/j.jsams.2020.12.003

Cited by 27 publications

(33 citation statements)

References 24 publications

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“…Most effect sizes were in the range from small to medium and are likely to be practically relevant. These findings are novel, given that previous research on the topic produced conflicting results (i.e., varying effect sizes or differences in findings) [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ].…”

Section: Discussionmentioning

confidence: 88%

“…There were 40, 243, and 316 search results in the database search, screening of the reference list, and forward citation tracking phases, respectively ( Figure 1 ). Of the search results found in the databases, ten full-text papers were read and six studies were included [ 4 , 5 , 7 , 8 , 9 , 10 ]. One additional study [ 6 ] was found in the forward citation tracking.…”

Section: Resultsmentioning

confidence: 99%

“…One additional study [ 6 ] was found in the forward citation tracking. Therefore, this review included a total of seven studies [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. However, one study [ 4 ] included three independent groups (i.e., players from under-14, under-16, and under-18).…”

Section: Resultsmentioning

confidence: 99%

“…Five studies [ 5 , 6 , 7 , 9 , 10 ] scored six points on the PEDro checklist, whereas two studies [ 4 , 8 ] scored eight points. Therefore, all included studies were classified as being of good methodological quality ( Table 3 ).…”

Section: Resultsmentioning

confidence: 99%

“…For example, in soccer, studies have explored the effects of mental fatigue on performance in the Yo-Yo test, Loughborough soccer passing test, and Loughborough soccer shooting test [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. Briefly, the Yo-Yo intermittent recovery test is a popular test used to evaluate performance in interval running [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Negative Effects of Mental Fatigue on Performance in the Yo-Yo Test, Loughborough Soccer Passing and Shooting Tests: A Meta-Analysis

Grgić

Mikulić

2022

JFMK

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We aimed to examine the effects of mental fatigue on the Yo-Yo test and Loughborough soccer passing and shooting tests performance using a meta-analysis. The search for studies was performed through eight bibliographic databases (Academic Search Elite, AUSPORT, Cochrane Library, PsycInfo, PubMed/MEDLINE, Scopus, SPORTDiscus, and Web of Science). The methodological quality of the included studies was assessed using the PEDro checklist. A random-effects meta-analysis was performed for data analysis. After reviewing 599 search results, seven studies with a total of ten groups were included in the review. All studies were classified as being of good methodological quality. Mental fatigue reduced the distance covered in the Yo-Yo test (Cohen’s d: −0.49; 95% confidence interval [CI]: −0.66, −0.32). In the Loughborough soccer passing test, mental fatigue increased the original time needed to complete the test (Cohen’s d: −0.24; 95% CI: −0.46, −0.03), increased penalty time (Cohen’s d: −0.39; 95% CI: −0.46, −0.31), and decreased performance time (Cohen’s d: −0.52; 95% CI: −0.80, −0.24). In the Loughborough soccer shooting test, mental fatigue decreased points per shot (Cohen’s d: −0.37; 95% CI: −0.70, −0.04) and shot speed (Cohen’s d: −0.35; 95% CI: −0.64, −0.06). Overall, the findings presented in this review demonstrated that mental fatigue negatively impacts endurance-based running performance as well as soccer passing and shooting skills.

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Section: Discussionmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Negative Effects of Mental Fatigue on Performance in the Yo-Yo Test, Loughborough Soccer Passing and Shooting Tests: A Meta-Analysis

Grgić

Mikulić

2022

JFMK

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Assessing the Evidential Value of Mental Fatigue and Exercise Research

Holgado,

Mesquida,

Román-Caballero

2023

Sports Med

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It has often been reported that mental exertion, presumably leading to mental fatigue, can negatively affect exercise performance; however, recent findings have questioned the strength of the effect. To further complicate this issue, an overlooked problem might be the presence of publication bias in studies using underpowered designs, which is known to inflate false positive report probability and effect size estimates. Altogether, the presence of bias is likely to reduce the evidential value of the published literature on this topic, although it is unknown to what extent. The purpose of the current work was to assess the evidential value of studies published to date on the effect of mental exertion on exercise performance by assessing the presence of publication bias and the observed statistical power achieved by these studies. A traditional meta-analysis revealed a Cohen’s dz effect size of − 0.54, 95% CI [− 0.68, − 0.40], p < .001. However, when we applied methods for estimating and correcting for publication bias (based on funnel plot asymmetry and observed p-values), we found that the bias-corrected effect size became negligible with most of publication-bias methods and decreased to − 0.36 in the more optimistic of all the scenarios. A robust Bayesian meta-analysis found strong evidence in favor of publication bias, BFpb > 1000, and inconclusive evidence in favor of the effect, adjusted dz = 0.01, 95% CrI [− 0.46, 0.37], BF10 = 0.90. Furthermore, the median observed statistical power assuming the unadjusted meta-analytic effect size (i.e., − 0.54) as the true effect size was 39% (min = 19%, max = 96%), indicating that, on average, these studies only had a 39% chance of observing a significant result if the true effect was Cohen’s dz = − 0.54. If the more optimistic adjusted effect size (− 0.36) was assumed as the true effect, the median statistical power was just 20%. We conclude that the current literature is a useful case study for illustrating the dangers of conducting underpowered studies to detect the effect size of interest.

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