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Reduced high-intens...
Reduced high-intensity training distance in growing horses had no effect on IGF-1 concentrations, but training onset interrupted time-dependent IGF-1 decline
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- Johansson, Lisa (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för anatomi, fysiologi och biokemi,Department of Anatomy, Physiology and Biochemistry (AFB),Swedish Univ Agr Sci, Dept Anat Physiol & Biochem, Ulls Vag 26, S-75007 Uppsala, Sweden.
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- Ringmark, Sara (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjurens utfodring och vård (HUV),Department of Animal Nutrition and Management,Swedish Univ Agr Sci, Dept Anat Physiol & Biochem, Ulls Vag 26, S-75007 Uppsala, Sweden.
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- Skiöldebrand, Eva (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Inst för biomedicin och veterinär folkhälsovetenskap,Department of Biomedical Science and Veterinary Public Health,Swedish Univ Agr Sci, Dept Biomed Sci & Vet Publ Hlth, Ulls Vag 26, S-75007 Uppsala, Sweden.
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- Bergquist, Jonas (författare)
- Uppsala universitet,Analytisk kemi,Science for Life Laboratory, SciLifeLab
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- Jansson, Anna (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för anatomi, fysiologi och biokemi,Department of Anatomy, Physiology and Biochemistry (AFB),Swedish Univ Agr Sci, Dept Anat Physiol & Biochem, Ulls Vag 26, S-75007 Uppsala, Sweden.
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(creator_code:org_t)
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- Wageningen Academic Publishers, 2022
- 2022
- Engelska.
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Ingår i: Comparative Exercise Physiology. - : Wageningen Academic Publishers. - 1755-2540 .- 1755-2559. ; 18:3, s. 201-209
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- This study investigated plasma insulin like growth factor (IGF)-1 concentrations in 16 young Standardbred horses introduced to systematic high-intensity training at two different levels of intensity. Growth and locomotion asymmetry and correlations between these and plasma IGF-1 concentrations were also examined. From September as 1-year olds to March as 2-year olds (Period 1), all horses were subjected to the same submaximal training program. In March (start of Period 2), the horses were divided into two groups (n=8) and one group was introduced to regular high-intensity training. The other group was introduced to a program where the high-intensity exercise distances were reduced by 30%. These two training programs were maintained for the remaining 21 months of the study (Periods 2, 3, and 4). There was no effect of training group on plasma IGF-1 concentrations. A continuous decline in IGF-1 levels was observed throughout the study (P<0.0001), with one notable interruption in Period 2 when the IGF-1 concentration remained at the level seen at the start of Period 1. Growth rate of body length was equally high in Periods 1 and 2 (P>0.05). Front and hind limb asymmetry was elevated in Period 2 compared with Period 1. There were positive correlations between IGF-1 concentrations and changes in body condition score, and a negative correlation between IGF-1 concentration and weight. These results indicate that introduction to high-intensity training induces IGF-1 release in horses, but that a 30% difference in the distances used in high-intensity training does not affect IGF-1 levels. The temporary interruption in decline in IGF-1 release with the onset of high-intensity training may influence growth pattern and locomotion asymmetry, but further studies are needed to assess causality.
Ämnesord
- LANTBRUKSVETENSKAPER -- Veterinärmedicin -- Klinisk vetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Veterinary Science -- Clinical Science (hsv//eng)
- LANTBRUKSVETENSKAPER -- Veterinärmedicin -- Medicinsk biovetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Veterinary Science -- Medical Bioscience (hsv//eng)
Nyckelord
- locomotion symmetry
- growth
- body length
- exercise
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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