Page 151 - Petelin, Ana. 2020. Zdravje delovno aktivne populacije / Health of the Working-Age Population. Zbornik povzetkov z recenzijo ▪︎ Book of Abstracts. Koper: Založba Univerze na Primorskem/University of Primorska Press
P. 151
rgy intake and energy availability endurance athlets prehrana in hidracija | nutrition and hydration
Tadeja Jakus, Mihaela Jurdana, Zala Jenko Pražnikar
University of Primorska, Faculty of Health Sciences, Polje 42, 6310 Izola, Slovenia
Introduction: Meeting energy demands of athletes and adequate energy availa-
bility (EA) are important goals for maintaining health of the athlete. The results
of studies show, that endurance athletes have low energy and carbohydrates
intakes, which is associated with low EA and poorer performance. Therefore,
the purpose of the study was to determine the energy and nutritional intake of
endurance athletes and whether their ER is adequate.
Methods: Seventeen healthy man participated in the study, who were running
or cycling more than 1h/day. Information on physical activity was estimated us-
ing a questionnaire, which gathered information on the frequency, type, dura-
tion and intensity of daily physical activity. Total amount of daily physical activ-
ity was expressed in MET (h/day) and in the our study included those athlets,
who achieved 10 MET or more. We assessed their body composition using bi-
oimpedance Tanita BC418MA. Their dietary intake was recorded with three-
day food record method. Nutrient composition and energy content were ana-
lyzed using the web tool Open platform for clinical nutrition (OPEN).
Results: The results show that the average sport activity was 13 METs, which
meets the criteria of high intensity training. Energy intake was 3032 kcal/day
and was lower than the estimated energy intake 3475 kcal/dan (p = 0,133). EA
was low (31 kcal/kg fat free mas/day) and negatively correlated with % body
fat (r = -0,531; p = 0,028). The average carbohydrate intake was 5,3 g/kg body
weight and differed significantly from the recommendations7g/kg body weight
(p = 0,01). Protein intake (1,6 g/kg body weight) was in accordance with the
recommendations. Fat intake was at the upper limit of the recommended (29
%), while cholesterol intake (429 mg/day) exceeded the recommendations.
Discussion and conclusions: The athletes is our study had high energy expendi-
ture (13 METs) in training, and at the same time energy intake under the recom-
mendation. Long-term low energy intake in high energy expenditure in training
leads to a calculated low ER, indicating health risk. The carbohydrates repre-
sent the main source of energy for endurance athletes, like other studies, we
also showed that their intake was below recommendation in our study. On the
other hand, the intakes of fat and cholesterol were higher than recommended.
All the mentioned results indicate that athletes needed more nutritional sup-
port and education to be able to utilize their ER and optimizing nutritional in-
take for their needs.
Key words: Nutrition, energy availability, physical activity
149
Tadeja Jakus, Mihaela Jurdana, Zala Jenko Pražnikar
University of Primorska, Faculty of Health Sciences, Polje 42, 6310 Izola, Slovenia
Introduction: Meeting energy demands of athletes and adequate energy availa-
bility (EA) are important goals for maintaining health of the athlete. The results
of studies show, that endurance athletes have low energy and carbohydrates
intakes, which is associated with low EA and poorer performance. Therefore,
the purpose of the study was to determine the energy and nutritional intake of
endurance athletes and whether their ER is adequate.
Methods: Seventeen healthy man participated in the study, who were running
or cycling more than 1h/day. Information on physical activity was estimated us-
ing a questionnaire, which gathered information on the frequency, type, dura-
tion and intensity of daily physical activity. Total amount of daily physical activ-
ity was expressed in MET (h/day) and in the our study included those athlets,
who achieved 10 MET or more. We assessed their body composition using bi-
oimpedance Tanita BC418MA. Their dietary intake was recorded with three-
day food record method. Nutrient composition and energy content were ana-
lyzed using the web tool Open platform for clinical nutrition (OPEN).
Results: The results show that the average sport activity was 13 METs, which
meets the criteria of high intensity training. Energy intake was 3032 kcal/day
and was lower than the estimated energy intake 3475 kcal/dan (p = 0,133). EA
was low (31 kcal/kg fat free mas/day) and negatively correlated with % body
fat (r = -0,531; p = 0,028). The average carbohydrate intake was 5,3 g/kg body
weight and differed significantly from the recommendations7g/kg body weight
(p = 0,01). Protein intake (1,6 g/kg body weight) was in accordance with the
recommendations. Fat intake was at the upper limit of the recommended (29
%), while cholesterol intake (429 mg/day) exceeded the recommendations.
Discussion and conclusions: The athletes is our study had high energy expendi-
ture (13 METs) in training, and at the same time energy intake under the recom-
mendation. Long-term low energy intake in high energy expenditure in training
leads to a calculated low ER, indicating health risk. The carbohydrates repre-
sent the main source of energy for endurance athletes, like other studies, we
also showed that their intake was below recommendation in our study. On the
other hand, the intakes of fat and cholesterol were higher than recommended.
All the mentioned results indicate that athletes needed more nutritional sup-
port and education to be able to utilize their ER and optimizing nutritional in-
take for their needs.
Key words: Nutrition, energy availability, physical activity
149
