Variability and accuracy of body fat estimates using skinfolds and DXA in elite Gaelic football players: a validation study and development of novel prediction equations

Dunne, Arthur; O’Neill, Cian; Warrington, Giles D.; Rackard, Gavin; Cullen, SarahJane

doi:10.1007/s11332-022-00896-2

Cited by 2 publications

(6 citation statements)

References 35 publications

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“…Prevalence of LEA in the present study is less than previously reported in elite male GF players (65–70%) [ 1 ]. However, the current study calculated LBM using the newly validated Dunne method of assessing FM in elite male GF players [ 38 ]. It is worth noting that the mean sum of 7 skinfolds in both the current study and McGuire et al [ 1 ] are the same for PRE and IN (65 mm).…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, caution should be taken when choosing what predictive equations to use. Dunne et al [ 38 ] evaluated the accuracy and variability of various predictive equations in estimating BF% and FM of male elite GF players in comparison to DXA [ 38 ]. Findings indicated that previous skinfold prediction equations commonly used to estimate BF% and FM in GF players all underestimated BF% and absolute FM [ 38 ], meaning previous estimations of EA in this population may have been overestimated, due to the overestimation of LBM.…”

Section: Discussionmentioning

confidence: 99%

“…Dunne et al [ 38 ] evaluated the accuracy and variability of various predictive equations in estimating BF% and FM of male elite GF players in comparison to DXA [ 38 ]. Findings indicated that previous skinfold prediction equations commonly used to estimate BF% and FM in GF players all underestimated BF% and absolute FM [ 38 ], meaning previous estimations of EA in this population may have been overestimated, due to the overestimation of LBM. In addition to this, the athletes in the current study had more experience working with a Sports Nutritionist and therefore may have had a better understanding of how to fuel more adequately.…”

Section: Discussionmentioning

confidence: 99%

“…The pitfalls of assessing EA were discussed in detail in our previous research [ 1 ]. Whilst efforts were made to ensure valid methods were used to measure EA, such as the inclusion of the Dunne method of body composition assessment specific to male GF players [ 38 ] and conducting interviews after the EI assessments, limitations still exist. In the absence of objective measures of EEE, Physical Activity Level (PAL) was used.…”

Section: Discussionmentioning

confidence: 99%

“…Measurements were taken by a Level I ISAK accredited anthropometrist with a technical error of measurement of ≤ 3.0% using Harpenden callipers (Baty International, Burgess Hill, England). The estimation of LBM was calculated using the recently validated predictive equations, specific to male elite GF players [ 38 ].…”

Section: Methodsmentioning

confidence: 99%

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Prevalence of low energy availability and associations with seasonal changes in salivary hormones and IgA in elite male Gaelic footballers

McGuire

Warrington

Doyle³

2023

Eur J Nutr

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Purpose Evidence suggests low energy availability (LEA) is prevalent in elite male Gaelic football (GF) players. Previous research in male and female team sports found LEA may negatively impact endocrine function. The aim of this study was to examine the seasonal variations in energy availability (EA) and its associations with salivary measures in elite male GF players across the competitive season. Methods Energy availability was assessed using field-based methods in conjunction with salivary testosterone (s-T), cortisol (s-C) and immunoglobin A (s-IgA) concentrations at pre-season (PRE), in-season (IN) and post-season (POST). Results 38% reported LEA at PRE, 33% at IN, and 28.5% at POST. s-C, s-T and s-IgA levels were within normal ranges at PRE, IN and POST. Salivary cortisol declined significantly from PRE to IN, remaining reduced at POST. Salivary testosterone decreased significantly from PRE to IN but was significantly elevated at POST compared to IN. Salivary IgA was significantly greater at POST than IN. No significant associations were found between s-C or s-T and EA at any time point. Pre-season s-IgA exhibited a significant inverse association with PRE EA. Decreased s-IgA flow rate and s-IgA secretion rate were significantly associated with decreased EA at PRE. Reduced carbohydrate (CHO) intake was also associated with decreased s-IgA secretion rate at PRE. Conclusion This study suggests that LEA is prevalent in elite male GF players, but is not associated with s-C or s-T. However, EA is associated with s-IgA which may impact the immune system. Therefore, education and interventions surrounding the prevalence and associations of EA should be implemented in this population.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Prevalence of low energy availability and associations with seasonal changes in salivary hormones and IgA in elite male Gaelic footballers

McGuire

Warrington

Doyle³

2023

Eur J Nutr

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An investigation into the associations between psychological skills, anaerobic fitness, and aerobic fitness in elite Iranian taekwondo athletes

et al. 2023

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This study investigated the relationship between psychological skills and fitness levels among elite taekwondo athletes. A total of ten Iranian male elite taekwondo athletes (mean age of 20.6±2 years, BMI 18.78±0.62 kg/m2, and fat percentage of 8.87±1.46%) participated in the study. The Sports Emotional Intelligence Questionnaire, Sports Success Scale, Sport Mental Toughness Questionnaire, and Mindfulness Inventory for Sport were used to assess psychological factors. The Wingate test was used to determine anaerobic power, and the Bruce test to determine aerobic fitness. Descriptive statistics and Spearman rank correlation coefficients were utilised to examine any relationships between subscales. Statistically significant correlations were recorded between the evaluation of feelings (EI scale) and VO2peak (ml/kg/min) (r = -0.70, p = 0.0235) and between social skills (EI scale) and relative peak power (W/kg) (r = 0.84, p = 0.0026). Also, between optimism (EI scale) and VO2peak (ml/kg/min) (r = -0.70, p = 0.0252) and between optimism (EI scale) and HR-MAX (r = -0.75, p = 0.0123); and, finally, between control (mental toughness scale) and relative peak power (W/kg) (r = 0.67, p = 0.0360). These findings demonstrate relationships between psychological factors and the advantages of good anaerobic and aerobic capabilities. Finally, the study also demonstrated that elite taekwondo athletes have high mental performance abilities that are interrelated with anaerobic and aerobic performance.

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Variability and accuracy of body fat estimates using skinfolds and DXA in elite Gaelic football players: a validation study and development of novel prediction equations

Cited by 2 publications

References 35 publications

Prevalence of low energy availability and associations with seasonal changes in salivary hormones and IgA in elite male Gaelic footballers

Prevalence of low energy availability and associations with seasonal changes in salivary hormones and IgA in elite male Gaelic footballers

An investigation into the associations between psychological skills, anaerobic fitness, and aerobic fitness in elite Iranian taekwondo athletes

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