Part 1: Childhood Obesity –⁠ Diagnosis and Lifestyle Intervention

Sleep as a Therapeutic Target

Is childhood obesity more often a consequence of psychological difficulties, or their cause? And does this change with age?

In reality, both scenarios frequently overlap, and it is difficult to determine what came first. In younger children, obesity and the environment are often the primary issues –⁠ they grow up in obesogenic conditions, gain weight, experience teasing, struggle with physical education, and begin withdrawing from peer groups. This can lead to low self-esteem, anxiety, and depressive symptoms. In such cases, obesity is more often the trigger of psychological difficulties.

In adolescents, the reverse pathway is more common –⁠ the child has psychological problems (anxiety, depression, family stress), and food functions as a coping mechanism (emotional eating), providing short-term relief. When this pattern repeats, obesity develops as a consequence. During adolescence, we also frequently observe more complex presentations in which obesity overlaps with eating disorders –⁠ binge eating, episodes of extreme dieting, and sometimes progression to bulimia.

From a clinical perspective, it makes little sense to ask whether obesity is a “psychological” or “somatic” diagnosis. In most children, it is a combination –⁠ a metabolic problem that significantly affects emotional experience and social relationships. Conversely, psychological disposition and stress influence eating and physical activity patterns. Therefore, I always try to address both dimensions simultaneously.

Sleep duration and quality are closely linked to obesity in children and adolescents. How do you assess them in your practice –⁠ do you use standardized questionnaires, or rely mainly on clinical history from the child and parents?

I always begin with a detailed targeted history –⁠ simply asking whether the child sleeps well is not enough. I want to know how many hours they actually sleep on weekdays and weekends, whether they take a long time to fall asleep, wake up during the night, eat at night, snore, have breathing pauses, sweat excessively during sleep, or move restlessly. I also ask whether they feel tired or sleepy during the day (falling asleep in school or in front of the television), or conversely appear hyperactive, and what their evening routine looks like –⁠ screen time, heavy meals, energy drinks.

In children with suspected sleep apnea, I use simple standardized parent questionnaires such as shorter versions of pediatric sleep disturbance scales, BEARS, or the Pediatric Sleep Questionnaire section focused on sleep-disordered breathing. Based on the score and history, I indicate further evaluation (ENT examination, sleep laboratory).

It is essential to recognize that sleep-disordered breathing is much more common in obese children than in the general population, and that short or poor-quality sleep can significantly impair appetite regulation and promote overeating. I therefore consider sleep a full-fledged therapeutic target, not a secondary issue.

Fitness Trackers in Lifestyle Monitoring

When does commonly recommended physical activity begin to do more harm than good for the joints in an obese child? And which types of exercise do you consider safest and realistically feasible at that stage?

The limiting factor is not just BMI but primarily how the child feels and how their musculoskeletal system responds. If a child has severe obesity (for example above the 99th percentile or BMI > 35 kg/m²) and complains of knee, hip, or back pain during running or jumping, starting with running is inappropriate and may cause more harm than benefit.

At that stage, I prefer joint-friendly physical activity: swimming and aquatic exercise (water relieves joint load while remaining effective for cardiovascular fitness), cycling or stationary biking, walking on flat terrain with gradual step increases (for example from 3,000 to 5,000 steps and beyond), seated or supine bodyweight exercises (strengthening the core and back muscles), and physiotherapist-guided exercises focused on posture and motor skills.

Only after fitness improves and weight decreases do we add more dynamic, joint-loading activities (running, ball sports). Cooperation with a physiotherapist is important to assess specific risks (flat feet, valgus knees, hypermobility) and recommend appropriate activities to minimize overload and injury.

What is your view when a child monitors their condition using fitness trackers? Do you see this as motivational, or can it complicate successful weight reduction?

Both are possible –⁠ it depends on how the tracker is used. In older children and adolescents, fitness trackers can be very helpful. The child has concrete numbers (step count, activity time, sometimes sleep) and can monitor progress. When set appropriately, it can become a motivational game –⁠ goals, badges, competing with oneself or friends. In families that use data reasonably (for example gradually increasing steps by 1,000 per day), it supports treatment.

On the other hand, in children with anxious or perfectionistic traits, excessive monitoring may lead to frustration or obsessive control –⁠ failing to reach 10,000 steps may feel like failure. In some adolescent girls, extreme calorie and step tracking may contribute to an unhealthy relationship with food.

I therefore always ask who is using the tracker –⁠ the child treating it as a game, or a parent constantly monitoring and commenting. If I see that the data support healthy motivation, I encourage it. If it creates tension or undermines self-esteem, I recommend limiting its use or focusing instead on qualitative goals (for example, spending 20 minutes outdoors daily).

Motivation of Both Child and Parents

How do you approach situations where both parents and the child are obese?

When the entire family is obese, it is clear that we cannot treat the child in isolation. I address this openly from the beginning –⁠ change must be a family project. The child does not shop, cook, or organize free time independently; most decisions are made by parents.

In practice, part of the conversation is with the child (what bothers them, what they would like to change), and part is very specific with the parents –⁠ what grocery shopping looks like, what beverages are consumed at home, work schedules, and opportunities for shared meals or physical activity. If the parents are also obese, I usually encourage them to participate through shared goals (for example, the whole family going out for 20 minutes daily). When parents see personal benefit, motivation often increases.

Of course, sometimes parents talk about change but do not implement it. In such cases, I address this openly but non-confrontationally, searching for smaller, realistic steps (for example starting with beverages or evening snacks only). With teenagers, I also try to strengthen their autonomy –⁠ identifying what they can change themselves, even if the home environment is not ideal.

Sometimes it is appropriate to recommend that parents have their own metabolic health evaluated. Simply being diagnosed with hypertension, elevated glucose, or liver changes by their general practitioner can be a strong motivator for lifestyle change, which in turn benefits the child.

Editorial Team, Medscope.pro

Photo: archive of Jan Boženský