The study tested four groups of 12 people of different ages, at different temperatures to see if compression clothing helped performance and recovery.
The results showed that when exercising at 68F (20C) young people gained no benefit from tight clothing.
In the case of trained cyclists with an average age of 66, garments actually increased body temperature and in some cases increased heart rate after an intense effort.
Mr Leoz said that older people should not use heat-dissipating compression clothing, because it could increase the onset of hyperthermia - the raising of body temperature above the normal levels.
When all of the study participants were asked to run on a treadmill to the point of exhaustion, the clothing lowered performance of all participants.
Although the new research only looked at tops, previous studies have shown that compression socks can benefit runners and help speed up recovery.
- This story originally appeared in The Daily Telegraph