Assessment of vitamin B6 status of strength and speedpower athletes.

Rokitzki, L; Sagredos, A; Cufi, D.; Keul, J.

doi:10.1080/07315724.1994.10718377

Cited by 17 publications

(5 citation statements)

References 19 publications

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“…Similar results were reported by Fogelholm et al [10], although the α EAST values obtained by them were higher than in this study. On the other hand, Rokitzki et al [24] reported higher α EAST values in groups of female handball players compared with male basketball players and wrestlers. Therefore, it cannot be excluded that the α EAST value depends on sex.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Intake and Nutritional Status of Vitamin B1, B2, and B6 in Men and Women With Different Physical Activity Levels

Malara¹,

Hϋbner-Woźniak²,

Lewandowska³

2013

Biol Sport

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The purpose of the present study was to examine the nutritional status of vitamin B1, B2, and B6 in respect to dietary intake of these vitamins and activity coefficients of the erythrocyte enzymes transketolase, glutathione reductase, and aspartic aminotransferase in young men and women with different physical activity levels. The participants of this study were 20 women and 20 men with high physical activity (groups HAW and HAM, respectively), and 20 women and 20 men with low physical activity (groups LAW and LAM, respectively). The intake of vitamins B1, B2, B6, proteins, and calorie content of the diet was based on the average of the 4-day dietary recalls. To assess nutritional status of vitamin B1, B2, and B6, the activity coefficients (α) of erythrocyte transketolase (ETK), erythrocyte glutathione reductase (EGR), and erythrocyte aspartic aminotransferase (EAST) were estimated in blood hemolysates. The intake of the studied vitamins in the diet was statistically significantly lower in the female groups compared with the respective male groups. Deficiency of vitamin B6 in the diet was present more often in women than in men (in terms of the recommended dietary allowances [RDA]). Values of the activity coefficient αETK indicated that none of the groups in this study suffered the risk of vitamin B1 deficiency. The value of the activity coefficient αEGR indicated that the groups of women and men with low physical activity were more prone to vitamin B2 deficiency compared with the high physical activity groups. The risk of vitamin B6 deficiency (αEAST) in both male groups was higher than in both female groups. The obtained results do not allow for unequivocal determination of the impact of sex and the level of physical activity on intake and nutritional status of vitamin B1, B2, and B6. Independently of sex and the level of physical activity, the women and men consumed insufficient quantities of vitamins B1 and B6, although this was not always related to increased values of corresponding activity coefficients.

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Section: Discussionmentioning

confidence: 99%

Assessment of Intake and Nutritional Status of Vitamin B1, B2, and B6 in Men and Women With Different Physical Activity Levels

Malara¹,

Hϋbner-Woźniak²,

Lewandowska³

2013

Biol Sport

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“…Table 4 summarizes studies examining dietary intake of vitamin B-6 in athletes. Some studies report vitamin B-6 intakes by athletes that are less than recommended guidelines, especially female athletes with low energy intakes (51,75). For example, when dietary intakes of trained female cyclists were examined, more than a third consumed less than the RDA for vitamin B-6 (45).…”

Section: Vitamin B-6mentioning

confidence: 99%

“…In addition, Steen et al found that only 70% of female heavyweight rowers met the RDA for vitamin B-6 (83). A study of strength and speedpower German athletes found that more than 30% did not meet the dietary guidelines for vitamin B-6 for that country (1.8 mg/d male, 1.6 mg/d female) (75). However, Niekamp and Baer (62) documented better vitamin B-6 intakes in male cross-country runners with mean intake levels greater than the 1989 RDA.…”

Section: Vitamin B-6mentioning

confidence: 99%

B-Vitamins and Exercise: Does Exercise Alter Requirements?

Woolf

Manore

2006

International Journal of Sport Nutrition and Exercise Metabolism

120

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The B-vitamins (thiamin, riboflavin, vitamin B-6) are necessary in the energy-producing pathways of the body, while folate and vitamin B-12 are required for the synthesis of new cells, such as the red blood cells, and for the repair of damaged cells. Active individuals with poor or marginal nutritional status for a B-vitamin may have decreased ability to perform exercise at high intensities. This review focuses on the B-vitamins and their role in energy metabolism and cell regeneration. For each vitamin, function related to physical activity, requirement, and status measures are given. Research examining dietary intakes and nutritional status in active individuals is also presented. Current research suggests that exercise may increase the requirements for riboflavin and vitamin B-6, while data for folate and vitamin B-12 are limited. Athletes who have poor diets, especially those restricting energy intakes or eliminating food groups from the diet, should consider supplementing with a multivitamin/mineral supplement.

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“…Using the 1998 EAR, adequate dietary intakes for vitamin B 6 have been reported for female athletes with subclinical eating disorders (Beals and Manore 1998), master athletes (Beshgetoor and Nichols 2003), field athletes (Faber and Benadé 1991), recreational athletes (Joubert and Manore 2008), distance runners (Kaiserauer et al 1989;Manore et al 1989;Nieman et al 1989), cyclists (Keith and Alt 1991), runners with amenorrhea (Kopp-Woodroffe et al 1999), handball athletes (Rokitzki et al 1994c), and triathletes (Worme et al 1990). Historically, results are mixed in regards to vitamin B 6 intake among female athletes due to revised dietary recommendations.…”

Section: Dietary Intake and Status Of Vitamin B 6 In Active Adultsmentioning

confidence: 93%

- Fluid and Electrolyte Requirements for Female Athletes

2013

Nutrition and the Female Athlete

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Assessment of vitamin B6 status of strength and speedpower athletes.

Cited by 17 publications

References 19 publications

Assessment of Intake and Nutritional Status of Vitamin B1, B2, and B6 in Men and Women With Different Physical Activity Levels

Assessment of Intake and Nutritional Status of Vitamin B1, B2, and B6 in Men and Women With Different Physical Activity Levels

B-Vitamins and Exercise: Does Exercise Alter Requirements?

- Fluid and Electrolyte Requirements for Female Athletes

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