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Soccer improved in children by a single 200,000 IU dose of Vitamin D – RCT Oct 2019

A single mega dose of vitamin D3 improves selected physical variables in vitamin D insufficient young amateur soccer players: a randomized controlled trial.

Appl Physiol Nutr Metab. 2019 Oct 9. doi: 10.1139/apnm-2019-0525.

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Single dose to deficient and measured improvements 12 weeks later

  • Wonder what "F" means in the table statistics
  • Abstract does not indicate # of children
  • Abstract does not indicate defined level of Vitamin D deficiency

Note: Should continue Vitamin D dosing after 8 weeks

Overview Sports and vitamin D has the following summary
Athletes are helped by vitamin D by:

  1. Faster reaction time
  2. Far fewer colds/flus during the winter
  3. Less sore/tired after a workout
  4. Fewer micro-cracks and broken bones
  5. Bones which do break heal much more quickly
  6. Increased VO2 and exercise endurance Feb 2011
  7. Indoor athletes especially need vitamin D
  8. Professional indoor athletes are starting to take vitamin D and/or use UV beds
  9. Olympic athletes have used UV/vitamin D since the 1930's
  10. The biggest gain from the use of vitamin D is by those who exercise less than 2 hours per day.
  11. Reduced muscle fatigue with 10,000 IU vitamin D daily
  12. Muscle strength improved when vitamin D added: 3 Meta-analysis
  13. Reduced Concussions
    See also: Sports and Vitamin D category 273 items

 Download the PDF from Sci-Hub via VitaminDWiki
Image
Note - Levels peak in 1 week and decrease a lot 12 weeks later

Bezrati I1,2, Ben Fradj MK3, Hammami R4, Ouerghi N5, Padulo J6,7, Feki M8.
1 National Center of Medicine and Sciences in Sports , 2010 Tunis, Tunisia , tunis, Tunisia , 2010.
2 Rabta Hospital, Laboratory of Biochemistry , 1007 Tunis, Tunisia , Tunisia ; ikram.cnmss at yahoo.com.
3 Rabta Hospital , rue jbal lakhthar , Tunis, Tunisia , 8050 ; kacim1984 at hotmail.fr.
4 National Center of Medicine and Science in Sports, 504792, Tunis, Tunis, Tunisia ; raouf.hammami81 at gmail.com.
5 High Institute of Sports and Physical Education of Kef, Kef, Tunisia ; najm_ouerghi at hotmail.com.
6 University eCampus, Novedrate, Italy , Via Isimbardi 10 , Novedrate (CO), Italy , 22060.
7 National Centre for Medicine and Science in Sports, Tunisian Research laboratory, Tunis, Tunisia , BP263 ; sportcinetic at gmail.com.
8 Université de Tunis El Manar Faculté de Médecine de Tunis, 59074, Biochemistry, Tunis, Tunisia ; moncef.feki at rns.tn.

This randomized controlled trial aimed to test whether vitamin D (VD) supplementation affects measures of physical performance in VD-insufficient mildly trained children. Thirty-six recreationally soccer player boys were randomly assigned to single dose (200,000 IU) of VD3 (n=19) or placebo (n=17). Plasma 25-hydroxyvitamin D (25-OHD) was assessed and measures of physical performance (i.e. vertical and standing broad jumps, triple hop, 10-m and 30-m sprints, shuttle run) were performed before and 12 weeks after the loading dose. Mixed ANCOVA models were performed and effect size was estimated by partial eta squared (ηp2). Baseline 25-OHD and physical variables were equivalent in the two groups. Twelve weeks after VD loading, plasma 25-OHD increased and physical variables improved in VD group, only.
There was a significant interaction effects for group by time for

vertical jump (F=14.9, p=0.001, ηp2=0.394)
triple hop jump (F=24.2, p<0.001, ηp2=0.513)
10-m sprint (F=4.46, p=0.046, ηp2=0.162)
30-m sprint (F=6.56, p=0.017, ηp2=0.222)
shuttle run F=13.4, p=0.001, ηp2=0.369).

In conclusion, a single bolus of VD3 resulted in significant improvements in jumping ability, agility, and running speed in VD-insufficient mildly trained children. The findings suggest that correcting VD deficit might be beneficial for physical performance.
• A mega dose of vitamin D3 improves jumping ability, agility, and running speed in VD-insufficient mildly trained children
• Effect of vitamin D on measures of physical performance is noticeable three months after the loading dose.


Created by admin. Last Modification: Wednesday July 15, 2020 14:04:33 GMT-0000 by admin. (Version 11)

Attached files

ID Name Comment Uploaded Size Downloads
13468 Soccer load 200,000.jpg admin 09 Feb, 2020 24.74 Kb 431
13467 Soccer load 200,000.pdf admin 09 Feb, 2020 958.75 Kb 453