Wattage produced by Elite indoor athletes: 3.9 W per kg if high Vitamin D vs 3.5 if low – Oct 2021

Influence of 25-Hydroxy-Vitamin D Insufficiency on Maximal Aerobic Power in Elite Indoor Athletes: A Cross-Sectional Study

Sports Med Open. 2021 Oct 14;7(1):74. doi: 10.1186/s40798-021-00363-1.
Astrid Most 1, Oliver Dörr 2, Holger Nef 2, Christian Hamm 2 3, Timm Bauer 4, Pascal Bauer 2

Background: The impact of vitamin D on musculoskeletal health is well-established, although its influence on physical performance is unclear. Therefore, we conducted this study to evaluate the impact of 25-hydroxy-vitamin D (25-OH vitamin D) concentrations with maximal aerobic power of professional indoor athletes.

Results: A total of 112 male professional athletes were included in this cross-sectional study, consisting of 88 handball and 24 ice hockey players. The maximal aerobic power was assessed with a standardized cycling ergometer test. Athletes were assigned to two groups according to their 25-OH vitamin D status: insufficient (< 30 ng/mL) and sufficient (≥ 30 ng/mL). Thirty-four players (30.4%) displayed insufficient (21.9 ± 5.9 ng/mL) and 78 (69.6%) sufficient 25-OH vitamin D concentrations (41.6 ± 8.6 ng/mL). Athletes with sufficient levels achieved a higher maximal aerobic power (3.9 ± 0.9 vs. 3.5 ± 0.8 W/kg, p = 0.03) compared to those with insufficient levels.

Conclusions: There is a high prevalence of 25-OH vitamin D insufficiency in professional indoor athletes, even in summer. Insufficient 25-OH vitamin D concentrations were associated with lower maximal aerobic power in male professional indoor athletes. Further, the 25-OH vitamin D concentration was identified as the only independent predictor of maximal aerobic power in these athletes, highlighting the impact of 25-OH vitamin D on physical performance. Therefore, 25-OH vitamin D concentrations of ≥ 30 ng/mL should be maintained to ensure optimal physical performance in these athletes.
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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

VitaminDWiki Sports pages containing MUSCLE in title

This list is automatically updated

Items found: 79
Title Modified
Vitamin D increasing muscle strength may reduce knee pain – Feb 2016 22 Nov, 2016
Improved muscle function in postmenopausal women with just 1,000 IU of vitamin D daily – RCT May 2015 31 Oct, 2016
Vitamin D supplementation improves muscle strength in healthy adults – meta-analysis of 6 RCT Aug 2014 31 Oct, 2016
Less muscle and insulin resistance for children of vitamin D deficient mothers – Jan 2011 05 May, 2016
Sunshine is a cure for “weak and soft muscles” – 425 BC 22 Apr, 2016
Senior muscles increased somewhat with Omega-3 – RCT July 2015 18 Jan, 2016
Muscle strength of Judo athletes increased 13 percent following single dose of 150,000 IU vitamin D – RCT Nov 2015 05 Nov, 2015
More muscle response when have adequate vitamin D 27 Jul, 2015
Weight loss includes muscle loss unless add vitamin D, whey and leucine – RCT Feb 2015 07 Feb, 2015
Vitamin D and bicarbonate perhaps synergistically reduce muscle loss – June 2013 27 Jan, 2015
Low Vitamin D breaks down muscle by interferring with protein - Editorial Nov 2013 27 Jan, 2015
People with old burns improved muscle strength with 2200 IU average vitamin D – RCT Sept 2014 20 Dec, 2014
Vitamin D supplementation help muscles of seniors who are vitamin D deficient – meta-analysis July 2014 18 Jul, 2014
Muscle fatigue reduced with 10,000 IU of vitamin D – March 2013 05 May, 2014
Skeletal muscles helped by vitamin D – Review Feb 2014 08 Feb, 2014
Elderly lower limb muscle strength improved with Vitamin D supplementation - Meta-analysis Oct 2013 23 Dec, 2013
Vitamin D improves muscle strength if deficient – meta-analysis - Oct 2010 19 Dec, 2013
Muscle strength not increased by raising vitamin D to only 30 ng – RCT Aug 2012 19 Dec, 2013
Vitamin D provides faster recovery after muscle overuse – April 2013 18 Dec, 2013
Type 2 muscles, not all muscles, get benefit from Vitamin D - Dec 2012 23 Oct, 2013
Muscle strength in youth increased with 60,000 IU vitamin D per week and 1 g Calcium – April 2010 10 Aug, 2013
More muscle injuries in NFL players who were low on vitamin D – July 2011 13 Jul, 2013
Muscle inflammation 17X more probable if vitamin D deficient – Feb 2013 13 Jul, 2013
Muscle improved by increasing vitamin D if previously less than 24 ng – June 2013 02 Jul, 2013
Vitamin D2 intervention increased elderly muscle strength – Nov 2010 10 Nov, 2012
Skeletal Muscle weakness from lack of vitamin D fixed by adding Calcium and phosphorus – Aug 2010 11 Aug, 2010
Vitamin D, Muscle Function, and Exercise Performance in kids – June 2010 09 Jun, 2010
Vitamin D improving muscles may be due to improving phosphate levels – June 2010 03 Jun, 2010
Vit D associated with less muscle fat 11 Apr, 2010
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