Validity and reliability of 10-Hz global positioning system to assess in-line movement and change of direction The use of GPS is very common in sports. The question arises, however, how reliable these devices are.We have now checked the reliability of a GPS system with directional changes in runners and footballers.
Read moreIt showed that the investigated device measures very reliable. The work can be found under https://pubmed.ncbi.nlm.nih.gov/29599725/
Age-predicted maximal heart rate in recreational marathon runners: A cross-sectional study on Fox’s and Tanaka’s equations For a long time, formulas are known on the basis of which one can estimate the maximum heart rate (HRMAX) in sports due to the age of the athlete. Specially mentioned is the formula according to Fox (220-age) and the formula to Tanaka (208-0.7xalter). So far, these formulas have not been validated in marathon runners, despite the importance of the role of Hrmax for training purposes. We have now validated the two formulas at 180 marathon runners.We came to the conclusion that the formulas of Fox and Tanaka overestimated the Hfmax in women by 5 beats per minute, while Fox underestimated the HFMAX in men around \ ~ 3 beats per minute. Therefore, we recommend the use of the formula of Tanaka only in male marathon runners.
Read moreSports and gastrointestinal complaints The impact of sporting activity on the digestive tract were neglected until today in medical research. Studies occupy that gastrointestinal problems occur in a notable proportion of athletes and can lead to performance reduction in training as well as in competition.
Especially in endurance sports, athletes often suffer from symptoms such as nausea, side stings, reflux symptoms or the so-called, runnerdiardrhoe ‘. All new findings can be found under https://medicalforum.ch/en/detail/doi/smf.2018.03159
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Performance in 100-km ultra-marathoners - At which age it reaches its peak? The number of 100 km runs and the number of successful finishers is rising from year to year. Nevertheless, we still know relatively little as the age of the best performance has developed over this route. We have therefore searched for all successful finishers since 1959 and with over 370,000 successful women and men who have brought such a competition to the goal of examining the development of the age of the best performance. To find this age of the best performance, there are various options such as 5-year intervals or 1-year intervals to consider the best, the top ten or all finishers per group. The age of the highest performance was 40-44 years in women and 45-49 years in men when all finishers were analyzed at 5-year intervals, while the women were 30-35 years and at men 35-39 yearswhen the top ten finishers were taken into account. When the finishers are analyzed at 1-year intervals, we find the age of excellence at 41 years of women and 45 years in men taking into account all finishers, and at 39 years in women and 41 years in men taking into account theTop ten finishers. The age of peak performance was younger at the women than in men, which could reflect the overall younger age of women as men in this discipline. Compared to previous studies, we observed the excellence of around 10 years later than previously known, which is due to an increase in age of the finisher over the calendar years.
Read moreAge of peak performance in 50-km ultramarathoners – is it older than in marathoners? Despite the increasing popularity of 50 km ultramarathons in recent years, there are only a few information about the development of participation and performance. We now specifically examined the age of the best performance in female and male 50 km ultra skiers. We have data from 494'414 runners (124'045 women and 370'369 men) that between 1975 and 2016 a 50 km ultramarathon completed more precisely analyzed. In the analysis of the top ten finishers in 1-year intervals, the age of the fastest running speed was both women and men at 41 years. If only the fastest participants were analyzed at 1-year intervals, the age of the fastest running speed was 40 years with women and 39 years with men.
Read moreThe relationship of wearing a wetsuit in long-distance open-water swimming with sex, age, calendar year, performance, and nationality – crossing the “Strait of Gibraltar” At large swimming in open waters such as channel queries or similar occasions, wearing a neoprene is prohibited. But there is the crossing of the street of Gibraltar where there are 2 categories, once with and once without neoprene. We have now examined the trend over the years.Since 1950, the street of Gibraltar has crossed until now, including a number of swimmers in neoprene. It showed that more men, more older swimmers and more local athletes from Spain with a neoprene swam as women, younger swimmers and athletes of other nationalities. The number of swimmers in the category neoprene increased significantly in the last 30 years.
Read moreCommon Ultramarathon Musculoskeletal Injuries The ‘Ultra Sports Science Foundation’ has put an overview article online to the various overload damage that can occur through long runs.
Read moreThese are the femoropatellar syndrome, the tractus syndrome, the Shin Splints, and stress fractures are so the most common. In the article, however, much more potential problems are listed to find everything under https://uessm.org/wp-content/uploads/2020/02/common-Ultramarathon-musculoskeletal-injuries-updated.pdf
World Records in Half-Marathon Running by Sex and Age The relationship between age and marathon time is already very well examined. However, more people worldwide run a half marathon and we know practically nothing about the relationship between age and best performance in the half marathon. We have therefore studied the age histores in the half marathon in 1-year intervals. It showed that records were set up between 5 and 93 years. The fastest time the women run around 24 years, about 4 years earlier in life than men who achieve their fastest time with around 28 years.
Read moreLow Prevalence of Hip and Knee Arthritis in Active Marathon Runners An American study examined for 675 marathon runners as often in this population occurs an arthrosis. The runners were on average 48 years old (18-79 years), have average 36 miles a week in training (10-150 miles) and had 76 marathons (3-60 years) in the last 19 years (3-60 years)1016 marathons) run.Overall, 47% of the runners reported pain in the field of hip or knees, 8.9% of the runners was a manifest arthrosis. When only the US runners have been taken into account, 8.8% of runners showed an arthrosis, which is well below the percentage of 17.9% for an American comparative collective. Seven runners continued to ran despite a hip or knee prosthesis.As risk factors age, family anamnesis and past operations were identified.
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