TY  - JOUR
A1  - Trabelsi, Khaled
A1  - Ammar, Achraf
A1  - Boukhris, Omar
A1  - Glenn, Jordan M.
A1  - Bott, Nick
A1  - Stannard, Stephen R.
A1  - Engel, Florian A.
A1  - Sperlich, Billy
A1  - Garbarino, Sergio
A1  - Bragazzi, Nicola L.
A1  - Shephard, Roy J.
A1  - Chtourou, Hamdi
T1  - Effects of Ramadan observance on dietary intake and body composition of adolescent athletes: systematic review and meta-analysis
JF  - Nutrients
N2  - To evaluate the effects of Ramadan observance on dietary intake, body mass and body composition of adolescent athletes (design: systematic review and meta-analysis; data sources: PubMed and Web of Science; eligibility criteria for selecting studies: single-group, pre-post, with or without control-group studies, conducted in athletes aged <19 years, training at least 3 times/week, and published in any language before 12 February 2020). Studies assessing body mass and/or body composition and/or dietary intake were deemed eligible. The methodological quality was assessed using ‘QualSyst’. Of the twelve selected articles evaluating body mass and/or body composition, one was of strong quality and eleven were rated as moderate. Ten articles evaluated dietary intake; four were rated as strong and the remaining moderate in quality. Continuation of training during Ramadan did not change body mass from before to the first week (trivial effect size (ES) = −0.011, p = 0.899) or from before to the fourth week of Ramadan (trivial ES = 0.069, p = 0.277). Additionally, Ramadan observance did not change body fat content from before to the first week (trivial ES = −0.005, p = 0.947) and from before to the fourth week of Ramadan (trivial ES = -0.057, p = 0.947). Lean body mass remained unchanged from before to the fourth week of Ramadan (trivial ES = −0.025, p = 0.876). Dietary data showed the intake of energy (small ES = -0.272, p = 0.182), fat (trivial ES = 0.044, p = 0.842), protein (trivial ES = 0.069, p = 0.720), carbohydrate (trivial ES = 0.075, p = 0.606) and water (trivial ES = −0.115, p = 0.624) remained essentially unchanged during as compared to before Ramadan. Continued training of adolescent athletes at least three times/week during Ramadan observance has no effect on body mass, body composition or dietary intake.
KW  - athletes
KW  - adolescent
KW  - energy intake
KW  - fat mass
KW  - lean mass
KW  - Ramadan
KW  - systematic review and meta-analysis
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-205856
SN  - 2072-6643
VL  - 12
IS  - 6
ER  - 
TY  - JOUR
A1  - Düking, Peter
A1  - Holmberg, Hans-Christer
A1  - Sperlich, Billy
T1  - The potential usefulness of virtual reality systems for athletes: a short SWOT analysis
JF  - Frontiers in Physiology
N2  - No abstract available.
KW  - SWOT
KW  - virtual reality
KW  - athletes
Y1  - 2018
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-176178
VL  - 9
IS  - 128
ER  - 
TY  - JOUR
A1  - Sperlich, Billy
A1  - Düking, Peter
A1  - Holmberg, Hans-Christer
T1  - A SWOT analysis of the use and potential misuse of implantable monitoring devices by athletes
JF  - Frontiers in Physiology
N2  - Kein Abstract vorhanden.
KW  - ingestible sensor
KW  - sensor assessment
KW  - implant
KW  - implantable neurostimulators
KW  - athletes
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-158742
VL  - 8
IS  - 629
ER  - 
TY  - JOUR
A1  - Sperlich, Billy
A1  - Holmberg, Hans-Christer
T1  - The responses of elite athletes to exercise: an all-day, 24-h integrative view is required!
JF  - Frontiers in Physiology
N2  - No abstract available.
KW  - physiological
KW  - athletes
KW  - wearable sensors
KW  - training intensity distribution
KW  - monitoring
KW  - biofeedback
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-158655
VL  - 8
IS  - 564
ER  -