Senior sportsmen and -women still participate in great numbers in sport events, particularly in endurance sports. Among the participants of the Jungfrau Marathon 2014 were 43% of the 3046 runners older than 50 years. These persons beeing active in sports have age related sportmedical problems. With four case reports the article tries to give concrete propositions to the sportsmed physician. Some of the graphics and tables are particularly appropriate for the counselling of active seniors in sports.
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Pendant les années 2011–2013, 151 jeunes talents sportifs et artistes du programme pour talents sportifs et artistiques du Canton du Tessin («Programme pour talents SMS») ont participé à un projet de suivi de leur santé sur le plan psychologique. Les objectifs visés par ce projet étaient l’évaluation du risque de surcharge psychologique de la population observée et le test de l’efficacité d’une intervention psycho-éducative de groupe pour réduire ce risque. Les jeunes talents – subdivisés en un groupe intervention (n=28) et un groupe contrôle (n=123) – ont rempli un questionnaire d’entrée (PRE), mesurant les paramètres psychologiques tels que l’anxiété, les motivations intrinsèques, ainsi que quatre facteurs de burnout et la perception d’un conflit d’intérêt entre pratique sportive/artistique et études. 8 mois après, ils ont été à nouveau interrogés au moyen du même questionnaire (POST), complété par des questions d’évaluation finale. Les réponses aux questionnaires d’entrée ont permis de montrer que 57.6% de l’ensemble des jeunes talents sont potentiellement à risque de surcharge psychologique.
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The aim of this study was to examine the validity of the electronic jump measurement system Training TesterTM to measure team handball specific jump performance. For this reason, standing reach height and team handball jump specific reach height were determined simultaneously with the Training TesterTM and a motion capture system as criterion measure. The Training TesterTM slightly underestimated the variables of interest. This can be explained by the relative small measuring zone of the Training TesterTM in comparison to the motion capture system. However, the correlation coefficients between both measurement methods were found to be very high.
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Quantifying actual individual training intensity in resistance training is essential for athletes and trainers, but is at present only possible with methodological problems. Thus, the purpose of this article is to examine the relationship of different types of RPE (rating of perceived exertion) with blood lactate concentrations in hypertrophy training. Hereby it is possible, to deduce conclusions about the validity of the RPE-scale and different times of monitoring. In this article two studies with male subjects are presented (study 1: n=10, 23.7 ± 2.8 years; study 2: n=16, 24.9 ± 2.0 years). In both surveys, subjects had to complete 3 sets with 3 minutes of rest between sets in every exercise. Blood lactate was measured before each exercise and two minutes after the completion of each set.
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Strength training guidelines tend to be based on stress factors such as relative weight, repetitions, sets, rest inbetween sets, muscle action velocity and number of sessions per week. Based on the stress-strain-concept, empirical results and training experience require additional parameters related to the molecular and cellular adaptations for an effective strength training concept. In contrast to what has generally been assumed, it is notable that the individual percentage of 1-Repetition-Maximum (1 RM) is not the intensity but only a relative training load and therefore a stress factor. Intensity is referred to here as a strain factor, operationalized as the level of effort applied to a given load.
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In the science and practice of strength training it is sometimes suggested that the deep squat entails an increased injury risk of the lumbar spine and the knee joint. Avoiding deep flexion is believed to minimize the magnitude of knee joint forces. Because within the first 50° of knee flexion calculated retropatellar compressive stress is lower, execution of quarter or half squats is recommended when overuse injuries and degenerative changes of the patella-tendon-complex exist.
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Strength and power are next to the other conditional requirements, as well as the technical, tactical, psychological requirements, a limiting factor in team sports. Therefore, it makes sense to also train strength. The maximal strength is understood as the maximal force the neuromuscular system can produce during a maximal voluntary contraction. A high maximal power is in many sports a basis for a high level of performance. The explosive strength is the ability of the neuromuscular system to develop a maximum impulse within a given time (Schmidtbleicher, 2003).
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