OBJECTIVES This non-randomised pilot study investigated the effect of eccentric quadriceps training on 17 patients (22 tendons) with painful chronic patellar tendinopathy. METHODS Two different eccentric exercise regimens were used by subjects with a long duration of pain with activity (more than six months). (a) Nine consecutive patients (10 tendons; eight men, one woman; mean age 22 years) ...

The purpose of this study was to conduct a systematic review and meta-analysis evaluate psychological burnout in adolescent athletes who sport specialize compared sample. A performed using the PubMed, Sport Discuss, PsychInfo, CINHAL databases (inception – May 2019) according PRISMA-IPD guidelines. Results from three measures Athlete Burnout Questionnaire athlete specialization status were reco...

the aim of this study was to evaluate the health–related physical fitness status of men aged between 50 and 65 in isfahan. 385 non-athlete men (mean age: 57.73±4.65 years, height: 167.94±6.04 cm, weight: 76.88±9.45 kg) aged between 50 and 65 were randomly selected as the sample. this study used physical fitness standard tests including flexibility test of sit and reach, rockport walking, curl-u...

few researches have been performed on the circadian rhythm of oxidants and anti-oxidants and these studies have demonstrated different results. the aim of this study was to investigate the circadian variation of mda, pc and sod in non-athlete young men. the research method of this study was semi-experimental. for this purpose, 10 non-athlete active students (mean age: 23.2±2.57 years old, heigh...

Leadership research that examines follower characteristics as a potential moderator of leadership effectiveness is lacking. Within Bass's (1985) transformational leadership framework, we examined follower narcissism as a moderator of the coach behavior-coach effectiveness relationship. Youth athletes (male = 103, female = 106) from the Singapore Sports Academy (mean age = 14.28, SD = 1.40 years...

Perfectionism in sports has been shown to predict longitudinal changes in athlete burnout. What mediates these changes over time, however, is still unclear. Adopting a self-determination theory perspective and using a three-wave longitudinal design, the current study examined perfectionistic strivings, perfectionistic concerns, autonomous motivation, controlled motivation, and athlete burnout i...

In recent decades, the exponential growth that sports practice in mountain and climbing disciplines have experienced has led to trying find an explanation for predisposition of those socio-emotional factors these athletes are considered search sensations achievement greater satisfaction with life. this study, 4818 people a license Spanish Federation Mountain Climbing Sports (FEDME) participated...

Background: To determine whether men with varicoceles have lower testosterone levels than those without and to ascertain if testosterone levels increase after varicocelectomy and or to determine whether the varicocele grade is related to the degree of improvement in serum testosterone levels after varicocelectomy and also older age is associated with improvements in testosterone after varicocel...

To the Editor: Competitive sports participation for athletes with long QT syndrome (LQTS) is guided by the 36th Bethesda Conference, which recommends that patients with either (1) symptoms, (2) a corrected QT interval (QTc) greater than 470 milliseconds (males) or 480 milliseconds (females), or (3) an implantable cardioverter-defibrillator (ICD) not participate in most sports. The European Soci...