BACKGROUND: The level of physical adaptation through active
lifestyle can result in changes in
appetite ; and caused by
physical activity and
exercise, physical adaptation may change
carbohydrate and fat
metabolism during
exercise . This study investigated the differences in
carbohydrate and fat
metabolism after moderate treadmill
running and the difference in
appetite response before and after
exercise in active, regularly exercising individuals and those inactive.
METHODS: We analyzed the effects of moderate
physical activity (70% of
oxygen uptake reserve, 30 minutes on the treadmill) on
free fatty acids ,
glucose ,
growth hormone ,
insulin and an
appetite visual analogue scale (VAS). Our subjects included 28 healthy
males who were divided into two groups, the activity group (n=14) and the inactivity group (n=14) according to the International
Physical Activity Questionnaire (IPAQ). The
serum samples and VAS were collected at pre, post and 30 min post-
exercise .
RESULTS: The results of the
serum analysis showed no significant effects on
free fatty acids ,
glucose ,
growth hormone and
insulin between the groups, but showed significant changes in
free fatty acids and
growth hormone between points of measurement. Significant increases in VAS were seen with moderate
exercise in both groups, with the inactivity group expressing greater
hunger than the activity group.
CONCLUSIONS: This study found that inactive
persons were hungrier than active
persons after moderate
exercise . This information might be useful to staff and participants of
weight loss programs .