Some Biomechanical and Anthropmetric Differences Between Elite Swimmers with Down Syndrome and Intellectual...

Area of Science:

• Sports Science
• Biomedical Engineering
• Human Movement Science

Background:

• Down syndrome and intellectual disabilities present unique physiological and biomechanical considerations.
• Understanding swimming performance in these populations is crucial for targeted training and support.
• Anthropometric and coordinative factors significantly influence swimming velocity and efficiency.

Purpose of the Study:

• To compare biomechanical and coordinative parameters at maximum velocity between swimmers with Down syndrome and intellectual disabilities.
• To analyze the relationship between anthropometric characteristics and swimming performance in these groups.
• To identify distinct movement patterns associated with each disability group during maximal effort swimming.

Main Methods:

• Nine swimmers (4 with Down syndrome, 5 with intellectual disabilities) participated.
• Participants performed three 25m crawl stroke bouts at maximum velocity.
• Data collected using Qualysis motion analysis system; anthropometrics and body composition were also assessed.

Main Results:

• Swimmers with Down syndrome exhibited smaller anthropometrics (height, arm span, foot dimensions) and lower velocity compared to swimmers with intellectual disabilities.
• Distinct coordination patterns were observed: catch-up in Down syndrome and superposition in intellectual disabilities.
• Higher intracyclic velocity variation in Down syndrome swimmers suggested reduced swimming efficiency.

Conclusions:

• Swimmers with Down syndrome possess disadvantageous anthropometrics and biomechanics, leading to slower swimming velocities.
• Coordination differences and intracyclic velocity variations highlight unique performance characteristics in Down syndrome swimmers.
• These findings suggest impaired swimming efficiency in individuals with Down syndrome compared to those with intellectual disabilities, necessitating tailored interventions.