Vitamin D as a Factor Modifying Adaptation to Exercise

Vitamin D3 Deficiency Clinical Trial

Official title:

Vitamin D as a Factor Modifying Adaptation to Diverse Forms of Exercise

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03417700
• Other study ID #: 2014/15/B/NZ7/00976
• Status: Completed
• Phase: N/A
• Start date: January 5, 2018
• Est. completion date: January 10, 2020

Study information

• Verified date: May 2021
• Source: Gdansk University of Physical Education and Sport
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Physical activity is a recommended, indispensable element of a healthy lifestyle as well as a countermeasure against many diseases often accompanied by the acute or chronic low grade inflammation. Papers published in recent years have demonstrated the anti-inflammatory effect of exercise. Based on current knowledge of the topic, own experience and preliminary work, it is expected the proposed research to provide information on the mechanism either determining or limiting pro-healthy effects of exercise in different age groups of people. Three different training programmes will be investigated. Specific goals of the project include the following:

1. Establish, whether regular Nordic Walking training and HIIT can reduce the low-grade systemic inflammation and which type of training is the most effective at doing so.

2. Establish, whether regular training can prevent muscle sarcopenia and assess if those changes are related to the concentration of the autophagy-inducing stress protein, HMGB1.

3. Establish, whether regular Nordic Walking training alters iron metabolism and evaluate its correlation with the inflammatory markers and bone-morphogenesis.

4. Establish, whether muscle-released irisin signals growth in the BDNF concentration in response to exercise and if these changes improve cognitive function.

5. Establish, whether Nordic Walking or HIIT training effectively improve the blood lipid profile and aerobic capacity, and if these effects correlate with the blood 25-OHD concentration.

6. Establish, whether concentration of vitamin D alters adaptation to training and modifies immunological response to regular training process.

Description:

The mechanism behind the anti-inflammatory effect of exercise is not fully understood. In some cases physical activity has proven almost/completely ineffective in reducing systemic inflammation. Thus, evaluating factors, which modify this response, is of particular significance. One of them may be related to iron metabolism. It is has been suggested that regular training reduces body iron stores, which can contribute to the anti-inflammatory response. Consequently, one of the anti-inflammatory effects of exercise can be related to changes in iron metabolism. Nevertheless, our preliminary data demonstrated that eight months of Nordic Walking training did not reduce body iron stores in approx. 25% of subjects, even if some of them were characterized by high blood ferritin (good indicator of body iron stores). This may be related to the effect of exercise on the concentration of hepcidin (main regulator of iron absorption, which acts as a negative regulator of iron efflux). It is well documented that a single bout of exercise induces an increase in blood hepcidin; however, data on the effect of regular training on the hepcidin concentration are limited.

Vitamin D is another factor, which could influence the anti-inflammatory effect of exercise. It has been suggested that individuals involved in physical activity have higher concentrations of 25OHD (indicator of vitamin D status). Vitamin D inhibits the expression of pro-inflammatory cytokines, which is considered the main mechanism of its anti-inflammatory action. It is worth noting that population in Poland is characterized by low status of vitamin D. Thus, it is possible that the anti-inflammatory effect of exercise will be modified by the vitamin status. Moreover, vitamin D has been shown to protect against muscle atrophy both in elderly and younger people. Its concentration has been correlated with muscle strength.

Inflammation has been observed to be associated with an increase of the autophagy-inducing stress protein, HMGB1, which mediates muscle atrophy. Measurement of plasma amino acid profile will be helpful to assess the impact of exercise on muscle proteolysis. Moreover, the link between exercise, vitamin D status and HMGB1 has not yet been established. In addition, a range of interactions induced by exercise involves the release of the newly discovered protein, irisin, form the muscle and its improving effect on the cognitive function through the synthesis of brain-derived neurotrophic factor (BDNF). Data on the effect of regular training on irisin concentration in elderly people is lacking.

Overall, our research interest focuses on the role of the factors mediating the anti-inflammatory effect of exercise and the way they stimulate or inhibit adaptive changes. The proposed project draws on our long experience in investigating the effects of exercise on iron metabolism as well as other physical methods supporting the anti-inflammatory action of physical activity. Latest published papers indicate that the concentration of vitamin D, also in training adaptation, can modulate immunological response to exercise. Therefore, verifying our hypothesis would also allow us to determine if the concentration of vitamin D can limit adaptation to physical activity.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 100
• Est. completion date: January 10, 2020
• Est. primary completion date: January 1, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 15 Years to 80 Years

Eligibility

Inclusion Criteria:

no illness medical check

Exclusion Criteria:

uncontrolled hypertension (diastolic blood pressure over 100 mmHg), a history of cardiac arrhythmia, cardio-respiratory disorders, advanced osteoporosis, clinical diagnosis of Alzheimer's Disease

Related Conditions & MeSH terms

• Vitamin D3 Deficiency

Intervention

Dietary Supplement:
• NW training
NW training
• Placebo
training with placebo
• HICT
Training and vitamin D

Locations

Country	Name	City	State
Poland	University of Physical Education and Sport	Gdansk	Pomorskie
Poland	Ziemann Ewa	Sopot	Pomorskie

Sponsors (1)

Lead Sponsor	Collaborator
Gdansk University of Physical Education and Sport

Country where clinical trial is conducted

Poland, 

References & Publications (6)

Gmiat A, Jaworska J, Micielska K, Kortas J, Prusik K, Prusik K, Lipowski M, Radulska A, Szupryczynska N, Antosiewicz J, Ziemann E. Improvement of cognitive functions in response to a regular Nordic walking training in elderly women - A change dependent on — View Citation

Gmiat A, Mieszkowski J, Prusik K, Prusik K, Kortas J, Kochanowicz A, Radulska A, Lipinski M, Tomczyk M, Jaworska J, Antosiewicz J, Ziemann E. Changes in pro-inflammatory markers and leucine concentrations in response to Nordic Walking training combined wi — View Citation

Kortas J, Kuchta A, Prusik K, Prusik K, Ziemann E, Labudda S, Cwiklinska A, Wieczorek E, Jankowski M, Antosiewicz J. Nordic walking training attenuation of oxidative stress in association with a drop in body iron stores in elderly women. Biogerontology. 2 — View Citation

Mieszkowski J, Niespodzinski B, Kochanowicz A, Gmiat A, Prusik K, Prusik K, Kortas J, Ziemann E, Antosiewicz J. The Effect of Nordic Walking Training Combined with Vitamin D Supplementation on Postural Control and Muscle Strength in Elderly People-A Rando — View Citation

Prusik K, Kortas J, Prusik K, Mieszkowski J, Jaworska J, Skrobot W, Lipinski M, Ziemann E, Antosiewicz J. Nordic Walking Training Causes a Decrease in Blood Cholesterol in Elderly Women Supplemented with Vitamin D. Front Endocrinol (Lausanne). 2018 Feb 20 — View Citation

Walentukiewicz A, Lysak-Radomska A, Jaworska J, Prusik K, Prusik K, Kortas JA, Lipinski M, Babinska A, Antosiewicz J, Ziemann E. Vitamin D Supplementation and Nordic Walking Training Decreases Serum Homocysteine and Ferritin in Elderly Women. Int J Enviro — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The influence of vitamin D on physical performance in aging people	To verify if training supported by vitamin D supplementation will bring better effects	Values at baseline will be compared to values recorded 12 weeks and 3 months after the training programme.