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A brief pre-exercise nap may alleviate physical performance impairments induced by short-term sustained operations with partial sleep deprivation - A field-based study
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Swedish Aerospace Physiology Centre, SAPC.ORCID iD: 0000-0002-7440-2171
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Swedish Aerospace Physiology Centre, SAPC.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Swedish Aerospace Physiology Centre, SAPC.ORCID iD: 0000-0003-3470-5175
Mil Acad Karlberg, Stockholm, Sweden..
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2018 (English)In: Chronobiology International, ISSN 0742-0528, E-ISSN 1525-6073, Vol. 35, no 10, p. 1464-1470Article in journal (Refereed) Published
Abstract [en]

The purpose of the study was to evaluate the recuperative efficacy of pre-exercise napping on physical capacity after military sustained operations (SUSOPS) with partial sleep deprivation. Before and after a 2-day SUSOPS, 61 cadets completed a battery of questionnaires, and performed a 2-min lunges trial and a 3,000-m running time-trial. After the completion of SUSOPS, subjects were randomized to either a control [without pre-exercise nap (CON); n = 32] or a nap [with a 30-min pre-exercise nap (NAP); n = 29] group. SUSOPS enhanced perceived sleepiness and degraded mood in both groups. Following SUSOPS, the repetitions of lunges, in the CON group, were reduced by similar to 2.3%, albeit the difference was not statistically significant (p = 0.62). In the NAP group, however, the repetitions of lunges were increased by similar to 7.1% (p = 0.01). SUSOPS impaired the 3,000-m running performance in the CON group (similar to 2.3%; p = 0.02), but not in the NAP group (0.3%; p = 0.71). Present results indicate, therefore, that a relatively brief pre-exercise nap may mitigate physical performance impairments ensued by short-term SUSOPS.

Place, publisher, year, edition, pages
TAYLOR & FRANCIS INC , 2018. Vol. 35, no 10, p. 1464-1470
Keywords [en]
Endurance, fatigue, military performance, operational stress, psychological strain, sleep inertia
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:kth:diva-239833DOI: 10.1080/07420528.2018.1490316ISI: 000450441500014PubMedID: 29985669Scopus ID: 2-s2.0-85049646321OAI: oai:DiVA.org:kth-239833DiVA, id: diva2:1272151
Note

QC 20181217

Available from: 2018-12-18 Created: 2018-12-18 Last updated: 2018-12-18Bibliographically approved

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Keramidas, Michail E.Siebenmann, ChristophNorrbrand, LenaEiken, Ola

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