THE EFFECT OF n-3 LC-PUFA SUPPLEMENTATION ON TENNIS SKILL ACQUISITION IN 10-12 YEAR OLD GIRLS

Seferoğlu, F.; Erman, Alparslan; Şahan, Ahmet; Toktaş, N.

doi:10.5604/20831862.1003450

Cited by 8 publications

(6 citation statements)

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“…There was no difference in average adherence between those two methods of supplementation (M = 87.3%, SD = 9.4 vs. M = 87.6%, SD = 7.8). Fifteen studies, reporting adherence, mentioned talking to parents or participants either via telephone or face to face (or via e-mail) during the study about the supplementation to increase adherence [ 61 , 67 , 69 , 70 , 72 , 90 , 91 , 107 , 111 , 113 , 131 , 134 , 135 , 136 , 143 ]. The studies that included a phone call did not have a higher average adherence rate (M = 81.5%, SD = 9.5) than those that did not include a phone call (M = 86.2%, SD = 10.3).…”

Section: Resultsmentioning

confidence: 99%

A Review of Recruitment, Adherence and Drop-Out Rates in Omega-3 Polyunsaturated Fatty Acid Supplementation Trials in Children and Adolescents

2017

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Introduction: The influence of n-3 long-chain polyunsaturated fatty acids (n-3 LCPUFA) supplementation on health outcomes has been studied extensively with randomized controlled trials (RCT). In many research fields, difficulties with recruitment, adherence and high drop-out rates have been reported. However, what is unknown is how common these problems are in n-3 LCPUFA supplementation studies in children and adolescents. Therefore, this paper will review n-3 LCPUFA supplementation studies in children and adolescents with regard to recruitment, adherence and drop-out rates. Methods: The Web of Science, PubMed and Ovid databases were searched for papers reporting on RCT supplementing children and adolescents (2–18 years) with a form of n-3 LCPUFA (or placebo) for at least four weeks. As a proxy for abiding to CONSORT guidelines, we noted whether manuscripts provided a flow-chart and provided dates defining the period of recruitment and follow-up. Results: Ninety manuscripts (reporting on 75 studies) met the inclusion criteria. The majority of the studies did not abide by the CONSORT guidelines: 55% did not provide a flow-chart, while 70% did not provide dates. The majority of studies provided minimal details about the recruitment process. Only 25 of the 75 studies reported an adherence rate which was on average 85%. Sixty-five of the 75 studies included drop-out rates which were on average 17%. Conclusion: Less than half of the included studies abided by the CONSORT guidelines (45% included a flow chart, while 30% reported dates). Problems with recruitment and drop-out seem to be common in n-3 LCPUFA supplementation trials in children and adolescents. However, reporting about recruitment, adherence and dropout rates was very heterogeneous and minimal in the included studies. Some techniques to improve recruitment, adherence and dropout rates were identified from the literature, however these techniques may need to be tailored to n-3 LCPUFA supplementation studies in children and adolescents.

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Section: Resultsmentioning

confidence: 99%

A Review of Recruitment, Adherence and Drop-Out Rates in Omega-3 Polyunsaturated Fatty Acid Supplementation Trials in Children and Adolescents

2017

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“…Effects of the use of nutritional supplements in sports are widely studied. The results of numerous investigations referring to the biological action, duration of supplementation and recommended doses are currently published in the scientific literature ( Czeczelewski et al, 2013 ; Desbrow et al, 2012 ; Helms et al, 2014 ; Patlar et al, 2012 ; Ranchordas et al, 2013 ; Roshan et al, 2013 ; Santos et al, 2012 ; Seferoğlu et al, 2012 ), and this information is sometimes listed on the label; therefore, sport physicians, coaches and athletes usually know how to use those products. Yet, knowledge of the physiological action of exotic herbs among sport physicians seems to be inadequate in the light of the large number of easily available over-the-counter new herbal products accompanied by a limited number of clinical trials and up-to-date information.…”

Section: Herbs and Nutritional Supplements In Sports In The Futurementioning

confidence: 99%

Insights into Supplements with Tribulus Terrestris used by Athletes

Pokrywka

Obmiński

Malczewska-Lenczowska

et al. 2014

Journal of Human Kinetics

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Herbal and nutritional supplements are more and more popular in the western population. One of them is an extract of an exotic plant, named Tribulus terrestris (TT). TT is a component of several supplements that are available over-the-counter and widely recommended, generally as enhancers of human vitality. TT is touted as a testosterone booster and remedy for impaired erectile function; therefore, it is targeted at physically active men, including male athletes. Based on the scientific literature describing the results of clinical trials, this review attempted to verify information on marketing TT with particular reference to the needs of athletes. It was found that there are few reliable data on the usefulness of TT in competitive sport. In humans, a TT extract used alone without additional components does not improve androgenic status or physical performance among athletes. The results of a few studies have showed that the combination of TT with other pharmacological components increases testosterone levels, but it was not discovered which components of the mixture contributed to that effect. TT contains several organic compounds including alkaloids and steroidal glycosides, of which pharmacological action in humans is not completely explained. One anti-doping study reported an incident with a TT supplement contaminated by a banned steroid. Toxicological studies regarding TT have been carried out on animals only, however, one accidental poisoning of a man was described. The Australian Institute of Sport does not recommend athletes’ usage of TT. So far, the published data concerning TT do not provide strong evidence for either usefulness or safe usage in sport.

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“…Long‐chain polyunsaturated fatty acids (LCPUFA), in particular docosahexaenoic acid (DHA; 22:6n3) and arachidonic acid (ARA; 20:4n6), are found in high concentrations in the brain and have been shown to be important for cognitive and visual development (Lauritzen, Hansen, Jørgensen & Michaelsen, ). DHA has been reported to affect cognitive functions such as working memory (Zhang, Hebert & Muldoon, ), problem solving ability (Willatts, Forsyth, DiModugno, Varma & Colvin, ), information processing speed (Henriksen, Haugholt, Lindgren, Aurvåg, Rønnestad et al ., ; Willatts, Forsyth, Agostoni, Casaer, Riva et al ., ) and motor skills (Seferoğlu, Erman, Şahan & Toktaş, ). The role of LCPUFAs in cognitive development may be linked to the biological effects of LCPFUAs on brain development, which are known to impact neuronal membrane structure, synaptogenesis, and myelination (Georgieff, ).…”

Section: Introductionmentioning

confidence: 99%

Event‐related potential differences in children supplemented with long‐chain polyunsaturated fatty acids during infancy

Liao

McCandliss

Carlson

et al. 2016

Developmental Science

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Long-chain polyunsaturated fatty acids (LCPUFA) have been shown to be necessary for early retinal and brain development, but long-term cognitive benefits of LCPUFA in infancy have not been definitively established. The present study sought to determine whether LCPUFA supplementation during the first year of life would result in group differences in behavior and event-related potentials (ERPs) while performing a task requiring response inhibition (Go/No-Go) at 5.5 years of age. As newborns, 69 children were randomly assigned to infant formulas containing either no LCPUFA (control) or formula with 0.64% of total fatty acids as arachidonic acid (ARA; 20:4n6) and various concentrations of docosahexaenoic acid (DHA; 22:6n3) (0.32%, 0.64% or 0.96%) for the first 12 months of life. At 5.5 years of age, a task designed to test the ability to inhibit a prepotent response (Go/No-Go) was administered, yielding both event-related potentials (ERPs) and behavioral data. Behavioral measures did not differentiate between groups, although reaction times of supplemented children were marginally faster. Unsupplemented children had lower P2 amplitude than supplemented children to both Go and No-Go conditions. N2 amplitude was significantly higher on No-Go trials than Go trials, but only for supplemented children, resulting in a significant Group X Condition interaction. Topographical analysis of the ERPs revealed that the LCPUFA-supplemented group developed a novel period of synchronous activation (microstate) involving wider anterior brain activation around 200 ms; this microstate was not present in controls. These findings suggest that LCPUFA supplementation during the first 12 months of life exerts a developmental programming effect that is manifest in brain electrophysiology.

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THE EFFECT OF n-3 LC-PUFA SUPPLEMENTATION ON TENNIS SKILL ACQUISITION IN 10-12 YEAR OLD GIRLS

Cited by 8 publications

References 0 publications

A Review of Recruitment, Adherence and Drop-Out Rates in Omega-3 Polyunsaturated Fatty Acid Supplementation Trials in Children and Adolescents

A Review of Recruitment, Adherence and Drop-Out Rates in Omega-3 Polyunsaturated Fatty Acid Supplementation Trials in Children and Adolescents

Insights into Supplements with Tribulus Terrestris used by Athletes

Event‐related potential differences in children supplemented with long‐chain polyunsaturated fatty acids during infancy

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