exercise – Schoemann

09/06/202608/06/2026

Waterfront Paris

Most people enjoy the banks of the river “La Seine” in Paris. Ever since the Olympics in Paris 2024, the temptation to go swimming there or to do some other kind of water related activities, is high. Fewer people are aware of an other splendid location near the Gare de l’Est. The canal Saint Martin and the nearby end of the Canal de l’Ourcq ( image below) have much to offer for stressed people to take some time off and relax. From cinemas, cafés and bars you can choose your favorite to pass time with friends or family, alternatively just keep walking for miles to get your exercise as needed to sustain your body in good health and shape. The health impact of such cool and more humid areas has a high value to the benefit of all without forcing people to travel long distances for recreational activities or normalizing weight or heart rates.

26/05/202626/05/2026

Gone paddling

Similar to windsurfing, paddling has not only a physiological, but also an ecological impact. Rather than using external power the equipment requires a good sense of balance on the board and propulsion originates in your own muscles. The benefits are great for mind and body and sharing a board is the standard way of getting your regular exercise.
There are more and more stations near the sea or on lakes available in 2026-5, so that it has become a much more accessible form of exercise. Paddling is also an age-inclusive practice, since the “probability to fail“, with the pleasure of spontaneous diving, is spread relatively equal across ages. Learning curves, however, may differ substantially across generations depending on prior balancing experiences. The ecological bottleneck consists in the access to sufficiently clean water resources so that the healthy and fun exercise shall have positive long-term health effects.

27/03/202626/03/2026

Dementia Prevention

The United Nations reports on countries’ activities like dementia prevention plans. Focus is on the medical sociological analysis in which dementia is not only determined by a person’s individual life course, but it is also a society-level issue. Looking at dementia prevalence and incidence over time as well as major known risk factors, Mukadam et al. (2024) conclude that low education level, smoking, obesity, hypertension and diabetes all contribute substantially to the risk of dementia. The trick with education is simple. If you start on a dementia trajectory from a high level of education, it will take longer until you are fully dependent on other persons. For the other causes there intrinsic or genetic components, but a large share of dementia risks can be reduced through behavioral changes early in life. My all time and all ages favorite is walk whenever and as long as you can.

20/03/202619/03/2026

Dual Task Processing

Extensive research into dual task performance shows that training of 2 tasks simultaneously can indeed enhance performance. New research by Schubert et al. (2025) indicates that there latent and persistent bottlenecks to the brain’s processing of such dual tasks, let alone multi-tasking. Out of own anecdotal exercise with “object tracking and touch” (gaming on tablet) a learning effect arises. However, it is unclear, whether this exercise translates to normal traffic situations in inner city situations for pedestrians or cyclists. The experiment of a dual task, combining a visual-manual and an auditory-verbal task, indicates also training effects, but the brain appears to return to sequential processing rather than simultaneous processing as much as it can. Such a dual task test may consist in juggling while singing a song or even leading a conversation with somebody. Quite a challenge or exhausting mental training even for those with a history of juggling objects.

19/02/202618/02/2026

Exercise and neurons

The neurons in the brain have an active part even in training effects of physical exercise. Morgan Kindel et al. (2026) have accomplished a rigorous test that demonstrates the involvement of brain neurons when mice were exercising repeatedly. Training effects were larger if the neurons of brain cells were involved as well. The cell’s learning ability encodes the experience of exercise and is prepared for a repetition of the exercise. This is roughly what happened in their experiments in my own words. Runners might know the effect that running on track or treadmill uses up less calories than running cross-country where the brain is more challenged to avoid missteps or loss of orientation. However, the latter are different tasks whereas the former experiments demonstrate that the brain is involved in physical exercise even if we do not notice it. Exercise might spur brain plasticity just by doing it. Hence, just do it.

02/10/202501/10/2025

Unexpected effects

It is, unfortunately, a rare event in science to publish unexpected effects of an experiment. Sometimes, results even turn out to be the opposite of what to tried to show with the use of an experimental setting. The learning for the science community, however, is bigger in such cases. Why? A carefully designed experiment (Oliveira et al. 2025) to measure the effects of 2 different 12 month long yoga trainings to prevent falls in 60+ persons (mean age 67) revealed that the less challenging “seated yoga” was better in preventing seniors from falls.
Participants in the more challenging Iyengar yoga-based sessions reported more falls in the 12 months follow-up period. Due to Covid-19 the trainings took place as an online course, which might have reduced the influence of a coach in correcting positions and observe other physiological or psychological issues with participants.
However, the insights are a great lesson for experiments to produce opposite results of expectations with the lesson that human beings can be rather complex. From a health psychology perspective, it might be the case that participants in the more challenging yoga classed became also more daring in balance as well as other exercises.
Just being overly confident compared to their positive improvements, which might turn around an initially positive effect on balance and falls. From a socio-economic perspective, we would question the implicit assumption of the study that participants have a random distribution or underlying tendency towards risky behaviour. The longer the observation window (post-intervention) is, the more intervening socio-economic factors enter into the physiological-behavioural equation. Hence, expect unexpected effects.

04/06/202404/06/2024

Bikenomics

There is a whole cluster of enterprises associated with bicycles. Selling a bike is only the first we might think of. Repair works are the most tricky part of bikenomics, a bit like bidenomics. In many cities during spring and summer it is even more difficult to get an appointment for bicycle repairs than for a doctor’s appointment, and that can be hard at times. Shortages of skilled technicians are pervasive in this sector. DIY for do it yourself is the best alternative. With the arrival of e-bikes and the digital connectivity the skill set has been enhanced recently as well. Insurance for bikes, lockers, helmets, airbag system or clothing including spectacles are part of the standard safety and security set of bicycle riders nowadays. Many, many job opportunities there and the willingness to pay for bicycles has steadily increased over the last years.

Berlin has just seen its 48th bicycle demonstration in 2024-6 on roads including 2 motorways with several ten thousands of participants. In a star like fashion multiple tracks met at the city center. The final meeting with stands and information was at the Deutsche Technik Museum with refreshments and repairs. The exhibition of cargo bikes and taxi bikes or “rickshaws” was another highlight. We need to rethink our mobility concepts and try to get the sharing to work more comfortably. For different purposes and activities you need a different bike. Ownership of each is no longer adequate as for example with aging alone your preferences for mobility with bikes also changes. Sharing is caring and this is also part of bikenomics.

08/05/202414/05/2024

Weight Stigma

The fashion industry has for a long time produced images of mostly women and men that did not correspond to the normal weight distribution of people. Skinny models were present across all media. The so-called social media of today amplify this trend further. The “Barbie hype” has reinforced the idea of low weight as a socially desirable norm. In scientific research the term coined for this phenomenon is “internalized weight stigma” (IWS). A study shows (Highes et al. 2024) it affects more women than men and more people who are described as socioeconomically disadvantaged adults. Pressure to lose weight originates from multiple sources and social media platforms have given rise to bullying. A major outcome of IWS is eating disorders as eating is often wrongly associated to be the only cause of higher weight. It is not. Many other factors contribute to the actual weight of a person. Even the overuse of the body mass index (BMI) as short hand version to define overweight or obesity is misleading for persons with strong muscles. Just fixing on one parameter of body shape or weight tends to reinforce weight stigma. “Keep walking” and a regular healthy diet, this avoids to internalize a weight stigma. Exercise is fun, the more you do it in a group, the easier it is to get going regularly. We ought to keep trying and eventually it will become a routine.

21/01/202419/01/2024

Benchmarks

The physiological benchmarkS of VOPs (Very Old Person) has been lifted by an Irish athlete recently. The 92 year old person has been examined with state of the art physiological measurements to better demonstrate the training efforts and health outcomes of the VOP. In fact the cardiovascular fitness is comparable to a much younger person without much exercise. In differentiation to a sedentary lifestyle the VOP has a daily 40 minutes rowing routine plus 2-3 times resistance training, meaning weights. 20 years without injury made him indoor rowing champion repeatedly. Physiological benchmarks have been extended due to the surprising late onset of the training only at 73 years of age. Starting late with physical exercise allows to reap enormous benefits as well. For physiological fitness it is not only “use it or lose it” but “use it and extend it”. Almost irrespective of age the novel findings suggest a cardiovascular plasticity that was believed to be impossible. The descriptive account in “The Journal of Applied Physiology” allows no causal inference. Many cardiologists would probably even advise against such high intensity training without careful medical examination before, during and after some months. From a statistical or epidemiological point of view this statistical outlier will likely lead to adjustments of algorithmic potentials of human performance in older age. Handle with care, I would suggest. Working against resistance regularly remains an interesting perspective for an aging person and aging societies.