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Behaviour of serum T3, rT3, TT4, FT4 and TSH levels after exercise on a bicycle ergometer in healthy euthyroid male young subjects.
Boll Soc Ital Biol Sper. 1984 Apr 30; 60(4):753-9.BS

Abstract

In order to know thyroid function during physical activity, just studied by several authors without univocal findings, we have submitted 10 young subjects, non athletes, aged 22-25 years (mean age 23, 6 +/- 1, 43) to a biologically maximal exercise on a bicycle ergometer. We have also examined the change of TSH serum levels during exercise. Our data show an evident increase of T4 (18, 60% at 10'), p less than 0.025, an increment of FT4 (28, 49 soon after the strain), and no relevant change of T3 and rT3 serum levels. Moreover TSH values show a reduction at 30' (-26, 15%) in comparison with the basal level. Our findings confirm the known increment of T4 and FT4 serum level after physical activity. It can be due, more than an hemoconcentration supported by others, to a real rise of thyroid incretion as in our opinion TSH levels reduction suggests. Concluding we think that the increase of T4 and decrease of TSH could be due to a direct influence of the physical activity on the system interested in their production.

Authors

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Pub Type(s)

Journal Article

Language

eng

PubMed ID

6732949

Citation

Licata, G, et al. "Behaviour of Serum T3, rT3, TT4, FT4 and TSH Levels After Exercise On a Bicycle Ergometer in Healthy Euthyroid Male Young Subjects." Bollettino Della Societa Italiana Di Biologia Sperimentale, vol. 60, no. 4, 1984, pp. 753-9.
Licata G, Scaglione R, Novo S, et al. Behaviour of serum T3, rT3, TT4, FT4 and TSH levels after exercise on a bicycle ergometer in healthy euthyroid male young subjects. Boll Soc Ital Biol Sper. 1984;60(4):753-9.
Licata, G., Scaglione, R., Novo, S., Dichiara, M. A., & Di Vincenzo, D. (1984). Behaviour of serum T3, rT3, TT4, FT4 and TSH levels after exercise on a bicycle ergometer in healthy euthyroid male young subjects. Bollettino Della Societa Italiana Di Biologia Sperimentale, 60(4), 753-9.
Licata G, et al. Behaviour of Serum T3, rT3, TT4, FT4 and TSH Levels After Exercise On a Bicycle Ergometer in Healthy Euthyroid Male Young Subjects. Boll Soc Ital Biol Sper. 1984 Apr 30;60(4):753-9. PubMed PMID: 6732949.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Behaviour of serum T3, rT3, TT4, FT4 and TSH levels after exercise on a bicycle ergometer in healthy euthyroid male young subjects. AU - Licata,G, AU - Scaglione,R, AU - Novo,S, AU - Dichiara,M A, AU - Di Vincenzo,D, PY - 1984/4/30/pubmed PY - 1984/4/30/medline PY - 1984/4/30/entrez SP - 753 EP - 9 JF - Bollettino della Societa italiana di biologia sperimentale JO - Boll. Soc. Ital. Biol. Sper. VL - 60 IS - 4 N2 - In order to know thyroid function during physical activity, just studied by several authors without univocal findings, we have submitted 10 young subjects, non athletes, aged 22-25 years (mean age 23, 6 +/- 1, 43) to a biologically maximal exercise on a bicycle ergometer. We have also examined the change of TSH serum levels during exercise. Our data show an evident increase of T4 (18, 60% at 10'), p less than 0.025, an increment of FT4 (28, 49 soon after the strain), and no relevant change of T3 and rT3 serum levels. Moreover TSH values show a reduction at 30' (-26, 15%) in comparison with the basal level. Our findings confirm the known increment of T4 and FT4 serum level after physical activity. It can be due, more than an hemoconcentration supported by others, to a real rise of thyroid incretion as in our opinion TSH levels reduction suggests. Concluding we think that the increase of T4 and decrease of TSH could be due to a direct influence of the physical activity on the system interested in their production. SN - 0037-8771 UR - https://www.unboundmedicine.com/medline/citation/6732949/Behaviour_of_serum_T3_rT3_TT4_FT4_and_TSH_levels_after_exercise_on_a_bicycle_ergometer_in_healthy_euthyroid_male_young_subjects_ DB - PRIME DP - Unbound Medicine ER -