TY  - JOUR
A1  - Carlsohn, Anja
A1  - Scharhag-Rosenberger, Friederike
A1  - Schapp, Lukas
A1  - Fusch, Gerhard
A1  - Mayer, Frank
T1  - Validity of the determination of energy input from a dietary record in persons of normal weight - dependence on the level of energy input comparison between elite sportsmen with very high energy intake and a control group of persons of normal weight
JF  - Ernährungs-Umschau : Forschung & Praxis
N2  - Dietary records are often biased, especially those of overweight individuals. The purpose of the study was to investigate underreporting among persons of normal weight with a very high energy intake (El).
 The total energy expenditure (TEE) of 16 elite athletes (BMI 24 +/- 2 kg/m(2)) and 17 controls (BMI 23 3 kg/m2) was measured using the doubly-labeled water technique (DLW, 14d). El was estimated using 2 x 3-day dietary records. Underreporters were identified by BLACK'S cut-off (El:TEE < 0.76). 44% of athletes (El: 3584 824 kcal/d; TEE: 4621 1460 kcal/d) and 29% of controls (El: 2552 680 kcal/d; TEE: 3151 822 kcal/d) were identified as underreporters. TEE explains 52% of underreporting. In summary, a high energy intake seems to strongly predict underreporting. Prevalence and magnitude of underreporting increase with increasing energy intake.
KW  - energy intake
KW  - dietary records
KW  - bias
KW  - underreporting
KW  - athletes
Y1  - 2012
U6  - https://doi.org/10.4455/eu.2012.958
SN  - 0174-0008
VL  - 59
IS  - 10
SP  - 572
EP  - 577
PB  - Umschau-Zeitschriftenverl.
CY  - Frankfurt, Main
ER  - 
TY  - JOUR
A1  - Müller, Steffen
A1  - Baur, Heiner
A1  - Hirschmueller, Anja
A1  - Mayer, Frank
T1  - Validität des COP-Verlaufes zur Quantifizierung der funktionalen Gangentwicklung bei Kindern
N2  - Functional gait development in children is discussed controversially. Differentiated information about the roll- over process of the foot, represented by the "Center of Pressure" (COP), are still missing. The purpose of the study was the validation of the COP-path to quantify the functional gait development of children. Plantar pressure distribution was measured barefoot with an individual speed on a walkway (tartan) - in 255 children aged between 2 and 15 years. The medial and lateral area enclosed between the COP-path and the bisection of plantar angle (A(med), A(lat), Sigma: A(ml)) was calculated from plantar pressure data. Furthermore, the duration of the COP-path in the heel (COPtimeF), midfoot (COPtimeM) and forefoot (COPtimeV) was analysed. The load distribution under the medial and lateral forefoot was also calculated. The variation coefficient (VC) was calculated as a measure of interindividual variability. The medio-lateral divergency of the COP (Aml) initially decreases with advancing age (-20.2%), followed by a continuous increase (+27.2%). No changes in VC (A(med), A(lat), and A(ml)) appeared during age-related development. COPtimeM remains constant in all children over time. In contrast to COPtimeM, Cop(time)F decreases from youngest to oldest children (-31.0%), and COPtimeV increases (+41.7%). After initial descent up to 8 years of age, VC (COPtimeF, COPtimeM, COPtimeV) remains constant. The mediolateral load under the forefoot did not change. The COP-Path is able to characterise the functional gait development of children. VC values indicate high individual variability of gait pattern. In this context, age-based standard values should be critically discussed
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Carlsohn, Anja
A1  - Scharhag-Rosenberger, Friederike
A1  - Heydenreich, Juliane
A1  - Mayer, Frank
T1  - Vitamin-D-Status of athletes with higher UV-exposure during training
JF  - Ernährungs-Umschau : Forschung & Praxis
Y1  - 2013
SN  - 0174-0008
VL  - 60
IS  - 10
SP  - 174
EP  - 176
PB  - Umschau-Zeitschriftenverl.
CY  - Frankfurt, Main
ER  -