A to Z of nutritional supplements: dietary supplements, sports nutrition foods and ergogenic aids for health and performance—Part 21

Goodman, Carmél; Peeling, Peter; Ranchordas, Mayur; Burke, Louise M.; Stear, S J; Castell, L M

doi:10.1136/bjsports-2011-090102

Cited by 7 publications

(6 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…23 For reference, the recommended daily allowance of elemental iron for women (age 19-50 years) is 18 mg per day; the recommendation is only 8 mg per day for men. 22,38 Based on the results of this review, there is no evidence to suggest that supplementation at or above the usually recommended daily allowance of iron improves performance in IDNA athletes. With regard to route of administration, none of the studies that used intramuscular or intravenous administration demonstrated improved performance.…”

Section: Discussionmentioning

confidence: 95%

See 1 more Smart Citation

Does Iron Supplementation Improve Performance in Iron-Deficient Nonanemic Athletes?

Rubeor

Goojha²,

Manning

et al. 2018

Sports Health: A Multidisciplinary Approach

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 95%

“…The body maintains stores of iron and carefully sustains a balance between iron lost, iron absorbed, and iron stored. 10,21-23,38…”

mentioning

confidence: 99%

Does Iron Supplementation Improve Performance in Iron-Deficient Nonanemic Athletes?

Rubeor

Goojha²,

Manning

et al. 2018

Sports Health: A Multidisciplinary Approach

View full text Add to dashboard Cite

show abstract

“…Todavía no se ha consensuado qué valores de los depósitos de Fe (ferritina) son críticos en los deportistas, puesto que existen diversas investigaciones que toman valores entre 12-30 ng/ml, para considerar una deficiencia de Fe 74 . Habitualmente se suele suplementar con Fe farmacológico cuando los depósitos de ferritina se encuentran entre estos valores, estando por debajo de 12-20 ug/L 75 .…”

Section: Asesoramiento Dietético-nutricional Para Prevenir La Anemia unclassified

Anemia ferropénica en el deporte e intervenciones dietético-nutricionales preventivas

Urdampilleta¹,

Martínez-Sanz

Mielgo-Ayuso³

2013

Rev Esp Nutr Hum Diet

View full text Add to dashboard Cite

La anemia ferropénica en los deportistas es una afección muy frecuente que conduce a un menor rendimiento físico. Los deportistas son susceptibles al descenso de los depósitos de hierro, fundamentalmente por un incremento en su utilización, por su pérdida, o por una ingesta insuficiente. El presente artículo pretende revisar la literatura científica respecto a: qué deportes-deportistas tienen mayor riesgo de padecer anemia, la etiología de la anemia ferropénica en el colectivo deportivo, además de sugerir pautas dietético-nutricionales para su prevención. Las bases de datos consultadas fueron: Pubmed, Scirus y Scielo, así como las páginas oficiales de organizaciones de reconocido prestigio; recuperando artículos mediante las palabras clave: “iron-deficiency anaemia”, “sports”, “athletic performance”, “iron intake” o sus homólogos españoles. La anemia ferropénica afecta principalmente a deportistas de resistencia (especialmente mujeres y maratonianos), así como a los integrantes de deportes de equipo con alto impacto (voleibol y balonmano). Las anemias suelen ser secundarias a hemólisis y estrés oxidativo derivados de la práctica del deporte, pero también se han documentado casos por aumento de las pérdidas de hierro asociadas a la práctica de ejercicio. Las pautas dietético-nutricionales para prevenir la anemia ferropénica en el deportista deberían ir encaminadas a asegurar: una ingesta de hidratos de carbono entre el 60-65% de la energía total diaria, una ingesta mínima de 1,4 g de proteína al día y un consumo de 20-40 mg de hierro por día y separando su ingesta de los principales inhibidores de su absorción (fitatos, tanatos y calcio). Es necesario valorar mediante analíticas el estado de hierro del deportista cada 2-3 meses.

show abstract

“…The micronutrient iron aids athletic performance via enhancing oxygen transport capacity [ 1 ]. Consequently, elite athletes, due to increased mechanical hemolysis, gastrointestinal issues, and iron loss through sweat [ 2 ] are at an increased risk to for iron depletion, iron deficiency (ID) [ 3 , 4 ], and possibly iron-deficit anemia [ 5 , 6 , 7 ]. Indeed, diminished iron storage has been shown to negatively affect aerobic capacity, strength, muscular fatigue, and has delayed skeletal muscle recovery in elite athletes [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Eleven Weeks of Iron Supplementation Does Not Maintain Iron Status for an Entire Competitive Season in Elite Female Volleyball Players: A Follow-Up Study

et al. 2018

View full text Add to dashboard Cite

Background: Even though iron supplementation can be effective, it is necessary to be cautious of toxicity and aim to do no harm, therefore, it is important to examine the length of time the benefits of iron supplementation can be maintained following its cessation. The main purpose of this study was to analyze if iron stores and strength performance were maintained in elite female volleyball players for the final 18 weeks of a competitive season following the cessation of 11 weeks of iron supplementation. Methods: Twenty-two volleyballers (age: 27.0 ± 5.6 years.) were assigned to two groups (iron treatment group-ITG, n = 11 or control gropu-CG, n = 11) at the beginning of a previous trial (T0) and ITG consumed 325mg/d of ferrous sulphate for 11 weeks (T11). Then, in the present study iron status and strength were measured again 10 (T21) and 18 weeks later (T29) after the cessation of supplementation. Results: At the end of the previous trial (T11), ITG maintained iron status as measured by hematological parameters (serum iron-sFE, serum ferritin-FER, transferrin saturation index-TSI, and hemogloblin-Hb), however, CG showed a decrease in these markers at T11. Further, from T0 to T11 ITG experienced greater (p < 0.05) changes in clean and jerk, power clean, and total mean strength (TMS-sum of all strength tests) than CG. In the present, follow-up investigation, there was a group-by-time interaction in favor of CG vs. ITG from T11 to T21 for FER (p = 0.028) and Hb (p = 0.042). Further, there was an increase for CG (p < 0.001) in power clean for CG from T11 (38.4 ± 1.7 kg) to T21 (41.3 ± 1.9 kg) and T29 (41.8 ± 1.7 kg), but no change for power clean in ITG (p > 0.05). A group-by-time interaction from T11 to T29 occurred in favor of CG for half-squat (p = 0.049) and TMS (p = 0.049). Conclusion: Our findings suggest that the benefits of iron supplementation are not sustained in elite female volleyballers if supplementation is ceased for 18 weeks.

show abstract

A to Z of nutritional supplements: dietary supplements, sports nutrition foods and ergogenic aids for health and performance—Part 21

Cited by 7 publications

References 18 publications

Does Iron Supplementation Improve Performance in Iron-Deficient Nonanemic Athletes?

Does Iron Supplementation Improve Performance in Iron-Deficient Nonanemic Athletes?

Anemia ferropénica en el deporte e intervenciones dietético-nutricionales preventivas

Eleven Weeks of Iron Supplementation Does Not Maintain Iron Status for an Entire Competitive Season in Elite Female Volleyball Players: A Follow-Up Study

Contact Info

Product

Resources

About