Increased muscle oxidative stress and inflammatory responses among athletes have been reported consistently. In addition, it is well known that exhaustive or unaccustomed exercise can lead to muscle fatigue, delayed-onset muscle soreness, and a decrement in performance. Omega-3 polyunsaturated fatty acids (PUFAs) have been shown to decrease the production of inflammatory eicosanoids, cytokines, and reactive oxygen species; have immunomodulatory effects; and attenuate inflammatory diseases. While a number of studies have assessed the efficacy of omega-3 PUFA supplementation on red blood cell deformability, muscle damage, inflammation, and metabolism during exercise, only a few have evaluated the impact of omega-3 PUFA supplementation on exercise performance. It has been suggested that the ingestion of EPA and DHA of approximately 1–2 g/d, at a ratio of EPA to DHA of 2:1, may be beneficial in counteracting exercise-induced inflammation and for the overall athlete health. However, the human data are inconclusive as to whether omega-3 PUFA supplementation at this dosage is effective in attenuating the inflammatory and immunomodulatory response to exercise and improving exercise performance. Thus, attempts should be made to establish an optimal omega-3 fatty-acid dosage to maximize the risk-to-reward ratio of supplementation. It should be noted that high omega-3 PUFA consumption may lead to immunosuppression and prolong bleeding time. Future studies investigating the efficacy of omega-3 PUFA supplementation in exercise-trained individuals should consider using an exercise protocol of sufficient duration and intensity to produce a more robust oxidative and inflammatory response.
Timothy D. Mickleborough
Kendra Nelson Ferguson, Craig Hall and Alison Divine
The study aimed to determine whether athletes who practice biofeedback are able to self-regulate by reaching resonance frequency and gaining physiological control quicker than if practice time integrates imagery or a rest period. Intervention effectiveness (e.g., intervention length, time spent training) was also explored. Twenty-seven university athletes were assigned to one of three groups: (a) biofeedback (i.e., continuous training), (b) biofeedback/imagery (i.e., interspersed with imagery), and (c) biofeedback/rest (i.e., interspersed with a rest period). Five biofeedback sessions training respiration rate, heart rate variability, and skin conductance were conducted. A repeated-measure analysis of variance showed a significant interaction between groups over time (p ≤ .05) for respiration rate, heart rate variability, and skin conductance, indicating that resonance frequency and physiological control was regained following imagery or a rest period. Postmanipulation check data found intervention length and training time to be sufficient. Combining imagery with biofeedback may optimize management of psychophysiological processes.
Kendra Nelson Ferguson and Craig Hall
Biofeedback is among the various self-regulation techniques that mental performance consultants can utilize in their practice with athletes. Biofeedback produces psychophysiological assessments in real time to enhance awareness of thoughts and emotions. Quantitatively, research shows that biofeedback can facilitate self-regulation, allowing an athlete to gain control over psychophysiological responses that could be detrimental to performance. With technology becoming a widespread tool in monitoring psychophysiological states, an exploration of consultants’ use of biofeedback, their perceptions of effectiveness, and limitations of their use was warranted to qualitatively evaluate efficiency of the tool. A qualitative descriptive approach was taken through semistructured interviews with 10 mental performance consultants. Inductive reasoning uncovered three themes: positive implications, practical limitations, and equipment options. With biofeedback, athletes have the ability to develop a deeper level of self-awareness and thereby facilitate the use of self-regulation strategies intended for optimal performance states and outcomes.
Timothy C. Sell, Mita T. Lovalekar, Takashi Nagai, Michael D. Wirt, John P. Abt and Scott M. Lephart
examination of postural stability is necessary for injury prevention and performance optimization research due to the frequent occurrence of lower extremity injuries in the military and the dynamic activities that military personnel perform. The purpose of the current study was to examine and compare the
Nicola A. Maffiuletti
After a brief introduction on electro stimulation methodology and applications in competitive sport for performance optimization, this technical report presents the principal effects of electro stimulation-induced resistance exercise on neuromus-cular features. The advantages and limitations of this technique compared with those of voluntary exercise training are also discussed.
Endurance Performance and Maximal Oxygen Consumption: A Meta-Analysis Denis M. Pelletier * Guillaume Lacerte * Eric D.B. Goulet * 2 2013 23 23 1 1 73 73 82 82 10.1123/ijsnem.23.1.73 Omega-3 Polyunsaturated Fatty Acids in Physical Performance Optimization Timothy D. Mickleborough * 2 2013 23 23 1 1
Helene Joncheray, Fabrice Burlot, Nicolas Besombes, Sébastien Dalgalarrondo and Mathilde Desenfant
context, this article questions more specifically (a) the factors of sports performance optimization, recognized and privileged by elite athletes, and (b) the establishment of these factors. To identify and understand the factors identified by athletes as having an impact on their performance, and how
Bart Roelands and Kevin De Pauw
Human performance optimization is probably the most studied topic in sport science, as it is in other closely related areas such as rehabilitation or settings like industry and the army. In the International Journal of Sports Physiology and Performance ( IJSPP ), an abundance of studies appears
Mark S. Dyreson
). In the blink of an evolutionary eye, from the perspective of geological and biological time, Heinrich’s ( 2002 ) “super endurance predators” clambered to the apex of the food chain. They were performance optimizers of the first order. The Rise of Locomotor Cultures How, in the period of human history
Mikkel Oxfeldt, Line B. Dalgaard, Astrid A. Jørgensen and Mette Hansen
discussing contraception with the coach depending on the sex of the coach. The 34 athletes, who discussed contraception with their coach and/or medical staff, stated that the purpose was sports performance optimization (n = 16), personal reasons (n = 10), and menstrual irregularities (n = 8). The