63 research outputs found
The perceived psychological responsibilities of a strength and conditioning coach
Research is limited in exploring the specific psychology-oriented responsibilities of the strength and conditioning professional. The present research explored the psychological responsibilities adopted by accredited strength and conditioning coaches. Participants comprised 10 coaches working within the United Kingdom, 3 within the United States, and 5 within Australia offering a cross-section of experience from various sport disciplines and educational backgrounds. Participants were interviewed either in person or via Skype. Thematic clustering was followed using interpretative phonological analysis to identify common themes. Over half (61%) of the respondents reported that their position as a strength and conditioning coach required additional psychology-oriented responsibilities. These comprised a counseling role in the absence of a psychologist and the use of "softer skills" in a mentoring role to the athlete during a challenging situation. The coach could play an influential role in shaping the mentality of the team. The coach identifies how the role results in working to relay information from the athlete to other support staff and similarly from the support staff to the athlete. In addition to identifying the resonant psychology-oriented responsibilities, discussion is made with specific focus on the ethical boundary within which strength and conditioning coaches must reside regarding the competencies to provide psychological support
The use of psychology within strength and conditioning : coaches’ perceptions, applied use and future recommendations
There is a paucity of research examining the use of psychological skills and strategies within strength and conditioning, this is despite research evidencing the effectiveness of psycho-physiological interventions which would be pertinent to the objectives of the strength and conditioning practitioner. The purpose of this project was to examine the use of psychology within the strength and conditioning environment from the perspective of the strength and conditioning coaches themselves. Specifically, this project assessed the most important psychological aspects, the most frequently used skills, barriers to the use of psychology, and the psychology knowledge base for the strength and conditioning community. Finally, an experimental protocol evidenced the efficacy of employing misinformation within strength and conditioning. The project revealed that psychology was more commonly used by more experienced professionals, nevertheless there was considerable disparity in the frequency with which psychological skills and strategies were used, with particular strategies being used significantly more than others. This was consistent with subsequent in-depth phenomenological exploration which revealed that strategies to promote confidence, skill acquisition, and regulate arousal were most frequently used. It was evident that there was uncertainty between practitioners as to the role responsibilities and the ethical boundaries associated within strength and conditioning. Furthermore, a lack of understanding was identified as the largest inhibitory factor. Finally, guidelines are proposed as to what changes are required to facilitate the use of psychology within strength and conditioning. These comprise the increased use of continual professional development with workshop sessions developed by appropriately qualified psychologists. Equally the use of collaborative links with qualified psychologists was suggested as beneficial
Movement profiles of soccer substitutes
Modifying a soccer substitute’s pre-pitch-entry activities may represent an opportunity to
maximise physical performance and minimise injury-risk following match-introduction.
Using a professional team that has previously participated in substitute profiling research,
this follow-up case study investigated the effects of a modified match-day protocol that
included substitutes; 1) performing a new pre-match warm-up alongside members of the
starting team (as opposed to a separate substitute-only warm-up), 2) participating in a staffled
half-time rewarm-up (as opposed to player-led half-time activities), and 3) receiving
ongoing education focusing on the efficacy of (re)warm-up activities. English Championship
substitutes (n = 15) were monitored using Micro-electromechanical Systems during 13
matches incorporating the modified practices (35 observations). On an individual player
basis, data were organised into bouts of warm-up activity (pre-pitch-entry) and five min
epochs of match-play (post-pitch-entry). Linear mixed modelling assessed the influence of
‘bout’ and ‘epoch’, position, and scoreline. Substitutes performed 3±1 rewarm-up bouts�-
player-1�match-1 between kick-off and pitch-entry, which were shorter (-17.2 to -27.1 min)
and elicited less distance (-696 to -1257 m) than the pre-match warm-up (p�0.001). Compared
with previous data, heightened absolute movement responses were observed during
the pre-match and staff-led half-time (re)warm-ups, alongside greater relative distances
covered during player-led activities performed between kick-off and pitch-entry. Whilst less
distance (-10%) was covered during the second versus first five min period following matchintroduction,
values remained higher than previously reported. Between pitch-entry and the
end of the match, the scoreline improved and worsened following 26% and 11% of substitutions,
respectively; a favourable record compared with existing observations. Acknowledging
the likely contribution from external factors, this case study reports heightened
movement profiles and improved match scorelines when pre-pitch-entry practices were
modified. Practitioners should note the potential influence of match-day activities on the physical responses of soccer substitutes and, if deemed necessary, consider adapting their
pre-pitch-entry routines accordingly
Isolated patellofemoral osteoarthritis: A systematic review of treatment options using the GRADE approach
Background and purpose The optimal treatment for isolated patellofemoral osteoarthritis is unclear at present. We systematically reviewed the highest level of available evidence on the nonoperative and operative treatment of isolated patellofemoral osteoarthritis to develop an evidenced-based discussion of treatment options
Insertion of Vaccinia Virus C7L Host Range Gene into NYVAC-B Genome Potentiates Immune Responses against HIV-1 Antigens
Background: The highly attenuated vaccinia virus strain NYVAC expressing HIV-1 components has been evaluated as a vaccine candidate in preclinical and clinical trials with encouraging results. We have previously described that the presence of C7L in the NYVAC genome prevents the induction of apoptosis and renders the vector capable of replication in human and murine cell lines while maintaining an attenuated phenotype in mice. Methodology/Principal Findings: In an effort to improve the immunogenicity of NYVAC, we have developed a novel poxvirus vector by inserting the VACV host-range C7L gene into the genome of NYVAC-B, a recombinant virus that expresses four HIV-1 antigens from clade B (Env, Gag, Pol and Nef) (referred as NYVAC-B-C7L). In the present study, we have compared the in vitro and in vivo behavior of NYVAC-B and NYVAC-B-C7L. In cultured cells, NYVAC-B-C7L expresses higher levels of heterologous antigen than NYVAC-B as determined by Western blot and fluorescent-activated cell sorting to score Gag expressing cells. In a DNA prime/poxvirus boost approach with BALB/c mice, both recombinants elicited robust, broad and multifunctional antigen-specific T-cell responses to the HIV-1 immunogens expressed from the vectors. However, the use of NYVAC-B-C7L as booster significantly enhanced the magnitude of the T cell responses, and induced a more balanced cellular immune response to the HIV-1 antigens in comparison to that elicited in animals boosted with NYVAC-B. Conclusions/Significance: These findings demonstrate the possibility to enhance the immunogenicity of the highl
The rexinoid, bexarotene, prevents the development of premalignant lesions in MMTV-erbB2 mice
Retinoids, vitamin A analogues that bind to retinoic acid receptor (RAR) or retinoid X receptor (RXR), play important roles in regulating cell proliferation, apoptosis, and differentiation. Recently, RXR-selective ligands, also referred to as rexinoids, have been investigated as potential chemopreventive agents for breast cancer. Our previous studies demonstrated that the rexinoid bexarotene significantly prevented ER-negative mammary tumourigenesis with less toxicity than naturally occurring retinoids in animal models. To determine whether bexarotene prevents cancer at the early stages during the multistage process of mammary carcinogenesis, we treated MMTV-erbB2 mice with bexarotene for 2 or 4 months. The development of preinvasive mammary lesions such as hyperplasias and carcinoma-in-situ was significantly inhibited. This inhibition was associated with reduced proliferation, but no induction of apoptosis. We also examined the regulation of a number of rexinoid-modulated genes including critical growth and cell cycle regulating genes using breast cell lines and mammary gland samples from mice treated with rexinoids. We showed that two of these genes (DHRS3 and DEC2) were modulated by bexarotene both in vitro and in vivo. Identification of these rexinoid-modulated genes will help us understand the mechanism by which rexinoid prevents cancer. Such rexinoid-regulated genes also represent potential biomarkers to assess the response of rexinoid treatment in clinical trials
Sepsis induced changes of adipokines and cytokines - septic patients compared to morbidly obese patients
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