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Psychobiologic Responses to 4 Days of Increased Training and Recovery in Cyclists
Abstract The psychobiologic status of cyclists after 4 days of training and the kinetics of recovery were assessed by measuring the sympatho-adrenal level, the central noradrenergic activity and the cortisol/testosterone status by non-invasive methods. For this purpose, urinary excretion of methoxya...
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Published in: | International journal of sports medicine 2002-11, Vol.23 (8), p.588-594 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | Abstract
The psychobiologic status of cyclists after 4 days of training and
the kinetics of recovery were assessed by measuring the sympatho-adrenal level,
the central noradrenergic activity and the cortisol/testosterone status by
non-invasive methods. For this purpose, urinary excretion of methoxyamines
(metanephrine [MN], normetanephrine [NMN]), which are
metabolites of circulating catecholamines, 3-methoxy-4-hydroxyphenyl glycol
sulfate (MHPG-S), a metabolite of brain norepinephrine, and salivary output of
cortisol and testosterone were measured in twelve national cyclists (aged
19.5 ± 4.5 years), just before (T
1
) and at the
end of the training (T
2
), and during the three following recovery
days (R
1
, R
2
, R
3
). Urinary and salivary
samples were also collected during a period of relative rest, in order to get
reference values (T
0
). At T
0
, T
1
and
T
2
, mood states, as measured by the Profile of Mood States, and
rating of perceived muscle soreness were assessed. The overall mood and muscle
soreness levels were not affected by the training. The load increased by
187 % as an average between the first and the fourth day of
training. A significant increase in NMN levels and a decrease in T:F ratio were
observed at T
2
, while MHPG-S excretion remained unchanged.
Persistent high urinary output of NMN and MN were observed during the
post-training recovery period for 24 h (R
1
) and 48 h
(R
2
), respectively. After 72 h of recovery (R
3
),
MN levels had returned to baseline while NMN output was lower than the control
level. T:F values returned to their control levels within 48 h of
recovery. The strenuous training seems to induce an alteration in peripheral
neuro-endocrine parameters without modifications of central factors. The
hormonal status remained altered for at least 1 day of post-training recovery
and seemed to be achieved within 3 days. |
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ISSN: | 0172-4622 1439-3964 |
DOI: | 10.1055/s-2002-35531 |