Longitudinal Changes in Vitamin D and Body Composition in NCAA D1 Male Basketball Players

Aprik, Carolyn; Sauerbry, Terry; DiPace, Lorenzo; Byrd, Brigid; DeCeuninck, Lisa; Ledin, Barb; Hew‐Butler, Tamara

doi:10.1249/01.mss.0000536744.43352.08

Cited by 2 publications

(20 citation statements)

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“…40,42 Records identified through database searching (n = 970) Body composition, bone health, and athletic performance. There were no significant changes in percentage body fat, 3,40 fat-free mass, 40 lean body mass, 3 and BMD, 3,6,40 after vitamin D supplementation. Sekel et al 42 reported a significant, inverse correlation (r = −0.80; very large) between the change in serum vitamin D (from pre-to postsupplementation) and body fat percentage.…”

Section: Vitamin D Supplementationmentioning

confidence: 86%

“…Vitamin D supplementation produced nonsignificant decreases of stress fractures in basketball players. 49 In addition, there were no significant changes in vertical jump, 3,34 20-m sprint, 34 and 5-10-5 agility drill 34 after vitamin D supplementation. discussion Epidemiology Our results suggest that the global prevalence of vitamin D inadequacy (<80 nmol/L) has reached an alarming proportion among basketball players, with a mean percentage of 77%.…”

Section: Vitamin D Supplementationmentioning

confidence: 91%

“…6 The absolute mean difference for serum 25(OH)D between vitamin D supplementation group (4000 IU per day and per week) and placebo group was 25.39 nmol/L (P < 0.001; 95% CI, 13.44-37.33) in basketball players with baseline values suggesting vitamin D insufficiency. 3,34 The absolute mean difference for 25(OH)D between vitamin D supplementation group (10,000 IU/d) and nonsupplementation group was 100.01 (P < 0.001; 95% CI, 70.39-129.63) in basketball players with baseline values suggesting vitamin D inadequacy (deficient and insufficient) versus basketball players with optimal status (>125 nmo/L). 40,42 Records identified through database searching (n = 970) Body composition, bone health, and athletic performance.…”

Section: Vitamin D Supplementationmentioning

confidence: 98%

“…Studies included in our review used cross-sectional design (prevalence of vitamin D inadequacy), 5,8,12,[17][18][19][20]33,46 uncontrolled design (vitamin D supplementation pre vs post), 6 nonrandomized controlled design (vitamin D supplementation vs nonsupplementation), 40,42 and randomized controlled design (vitamin D supplementation vs placebo). 3,34 The characteristics of the participants investigated in the included articles are presented in Table 1. The sample size ranged from 7 to 279 players across studies examining the prevalence of vitamin D inadequacy.…”

Section: Study Characteristicsmentioning

confidence: 99%

“…5,6,8,12,[17][18][19][20]33,34,40,42,46,49 In addition, there has been increased awareness of the importance of vitamin D supplementation to maintain appropriate serum 25(OH)D status, in recent years. 3,6,34,40,42,49 Despite growing interest in quantifying and correcting vitamin D inadequacy in basketball players, a critical synthesis of these data is yet to be performed to overcome the low generalizability of findings from individual studies. Therefore, this systematic review and meta-analysis aimed to provide a comprehensive analysis of data in basketball pertaining to (1) the prevalence of vitamin D inadequacy; (2) the effects of vitamin D supplementation on 25(OH)D concentration (and its association with body composition), bone health, and performance; and (3) crucial aspects that warrant further investigation in future studies.…”

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confidence: 99%

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Vitamin D in Basketball Players: Current Evidence and Future Directions

Stojanović

Radovanović

Hew‐Butler

et al. 2021

Sports Health: A Multidisciplinary Approach

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Context: Despite growing interest in quantifying and correcting vitamin D inadequacy in basketball players, a critical synthesis of these data is yet to be performed to overcome the low generalizability of findings from individual studies. Objective: To provide a comprehensive analysis of data in basketball pertaining to (1) the prevalence of vitamin D inadequacy; (2) the effects of vitamin D supplementation on 25-hydroxyvitamin D [25(OH)D] concentration (and its association with body composition), bone health, and performance; and (3) crucial aspects that warrant further investigation. Data Sources: PubMed, MEDLINE, ERIC, Google Scholar, SCIndex, and ScienceDirect databases were searched. Study Selection: After screening, 15 studies were included in the systematic review and meta-analysis. Study Design: Systematic review and meta-analysis. Level of Evidence: Level 3. Data Extraction: The prevalence of vitamin D inadequacy, serum 25(OH)D, body composition, stress fractures, and physical performance were extracted. Results: The pooled prevalence of vitamin D inadequacy for 527 basketball players in 14 studies was 77% ( P < 0.001; 95% CI, 0.70-0.84). Supplementation with 4000 IU/d and 4000 IU/wk (absolute mean difference [AMD]: 25.39 nmol/L; P < 0.001; 95% CI, 13.44-37.33), as well as 10,000 IU/d (AMD: 100.01; P < 0.001; 95% CI, 70.39-129.63) vitamin D restored 25(OH)D to normal concentrations. Body composition data revealed inverse correlations between changes in serum 25(OH)D (from pre- to postsupplementation) and body fat ( r = −0.80; very large). Data concerning positive impacts of vitamin D supplementation on bone health and physical performance remain sparse. Conclusion: The high proportion of vitamin D inadequacy underscores the need to screen for serum 25(OH)D in basketball players. Although supplementation restored vitamin D sufficiency, the beneficial effects on bone health and physical performance remain sparse. Adiposity can modulate 25(OH)D response to supplementation.

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Section: Vitamin D Supplementationmentioning

confidence: 86%

Section: Vitamin D Supplementationmentioning

confidence: 91%

Section: Vitamin D Supplementationmentioning

confidence: 98%

Section: Study Characteristicsmentioning

confidence: 99%

mentioning

confidence: 99%

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Vitamin D in Basketball Players: Current Evidence and Future Directions

Stojanović

Radovanović

Hew‐Butler

et al. 2021

Sports Health: A Multidisciplinary Approach

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Vitamin D₃ supplementation reduces serum markers of bone resorption and muscle damage in female basketball players with vitamin D inadequacy

Stojanović

Jakovljević

Scanlan

et al. 2021

European Journal of Sport Science

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This study aimed to investigate the effect of vitamin D 3 supplementation at a dose of 4,000 IU/day for 6 weeks on serum levels of: 25-hydroxyvitamin D [25(OH)D], bone turnover [osteocalcin and carboxy-terminal telopeptides of crosslinks of type I collagen (CTx-I)], and muscle damage [lactate dehydrogenase (LDH) and creatine kinase (CK)] in middle adolescent (15-18 years) and late-adolescent to early adulthood (19-30 years) female basketball players with inadequate vitamin D status. Participants (N=24) were randomly assigned in a double-blind manner into a vitamin D or placebo group. Data were analyzed using separate 2×2x2 mixed ANOVAs with one within-subjects factor (time) and two between-subjects factors (condition and age). When a significant interaction was observed, the intra-group changes were assessed using paired t tests and Hedge's g. Paired t-tests comparing intra-group changes in the vitamin D condition revealed a non-significant large improvement in 25(OH)D (p = 0.06; g = 0.86), non-significant small decreases in CTx-I (p = 0.13; g = −0.22) and CK (p = 0.07; g = −0.26), as well as a significant moderate decrease in LDH (p = 0.004; g = −0.74). Paired t-tests comparing intra-group changes in the placebo condition revealed a significant moderate decline in 25(OH)D (p <0.001; g = −0.77), as well as significant small increases in CTx-I (p = 0.04; g = 0.47) and CK (p = 0.04; g = 0.36). Vitamin D 3 supplementation at 4,000 IU/day could be effective in reducing bone resorption and muscle damage in female basketball players with inadequate baseline vitamin D, irrespective of age. KEYWORDS 25(OH)D; athletes; creatine kinase; lactate dehydrogenase; bone metabolism; vitamin D insufficient Key points . Vitamin D 3 supplementation at a dose of 4,000 IU/day for six weeks was effective at increasing 25(OH)D concentration in female basketball players with vitamin D inadequacy. . Vitamin D 3 supplementation has the potential to suppress bone resorption in female basketball players with inadequate vitamin D status. . Vitamin D 3 supplementation has the potential to assist in reducing muscle damage in female basketball players with vitamin D inadequacy.

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Longitudinal Changes in Vitamin D and Body Composition in NCAA D1 Male Basketball Players

Cited by 2 publications

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Vitamin D in Basketball Players: Current Evidence and Future Directions

Vitamin D in Basketball Players: Current Evidence and Future Directions

Vitamin D₃ supplementation reduces serum markers of bone resorption and muscle damage in female basketball players with vitamin D inadequacy

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Longitudinal Changes in Vitamin D and Body Composition in NCAA D1 Male Basketball Players

Cited by 2 publications

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Vitamin D in Basketball Players: Current Evidence and Future Directions

Vitamin D in Basketball Players: Current Evidence and Future Directions

Vitamin D3 supplementation reduces serum markers of bone resorption and muscle damage in female basketball players with vitamin D inadequacy

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Vitamin D₃ supplementation reduces serum markers of bone resorption and muscle damage in female basketball players with vitamin D inadequacy