Cardiovascular Risk in Sedentary Elderly During Prolonged Sitting Time Versus Intermittent Sitting Time
Blood Glucose, Insulin Response and Inflammatory Markers in Sedentary Elderly During Prolonged Sitting Time Versus Intermittent Sitting Time
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Voraussichtlich)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Fernanda PA Pessanha, Master
- Telefonnummer: +5516981135032
- E-Mail: fernandapessanha@usp.br
Studieren Sie die Kontaktsicherung
- Name: Priscila G Fassini, PhD
- Telefonnummer: +551633153370
- E-Mail: priscilafassini@usp.br
Studienorte
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São Paulo
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Ribeirão Preto, São Paulo, Brasilien, 14048-900
- Rekrutierung
- Clinics Hospital of the Ribeirao Preto Medical School
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Sedentary older women according World Health Organization, defined as not performing moderate to vigorous physical activity and vigorous for 150 min / week for at least 3 months;
- BMI <to 35.00 kg / m2;
- Sign the Informed Consent.
Exclusion Criteria:
- Previous diagnosis of Diabetes Mellitus;
- Use of any medication for glycemic control;
- Orthopedic problems that impair walking or use of orthoses for walking.
- Relative or absolute contraindications to perform physical activity.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Experimental: Prolonged Sitting Time (PST)
Uninterrupted sitting time of 5 hours
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Volunteers will be continuously sitting on a chair for 5 hours and should move the least possible.
If the participant needs to stand from the chair, the stage will be invalidated.
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Experimental: PST+Light intensity Short bouts PA
Sitting prolonged interrupted with breaks of 2 minutes of light physical activity
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Volunteers will have their time sitting interrupted every 20 minutes for 2 minutes of physical activity of low intensity.
In the active period, participants will be encouraged to walk in the hallway and reach a training heart rate between 50-60% HR max predicted for the age and measured by heart rate monitor.
The Borg scale will be used at the beginning and the end of each active period in order to measure the subjective effort of the participants.
In the end the volunteers will be sitting 5 hours and have 30 minutes (15 bouts of 2 minutes) of light intensity physical activity.
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Experimental: PST+Moderate intensity Short bouts PA
Sitting prolonged interrupted with breaks of 2 minutes of moderate physical activity
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Volunteers will have their time sitting interrupted every 20 minutes for 2 minutes of physical activity of moderate intensity.
In the active period, participants will be encouraged to walk in the hallway and reach a training heart rate between 65 a 75% HR max predicted for the age and measured by heart rate monitor.
The Borg scale will be used at the beginning and the end of each active period in order to measure the subjective effort of the participants.
In the end the volunteers will be sitting 5 hours and have 30 minutes (15 bouts of 2 minutes)of moderate intensity physical activity.
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Experimental: PST+Moderate intensity Long bouts PA
Sitting prolonged interrupted with breaks of 10 minutes of moderate physical activity
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Volunteers will have their time sitting interrupted every 75 minutes for 10 minutes of physical activity of moderate intensity.
In the active period, participants will be encouraged to walk in the hallway and reach a training heart rate between 65 a 75% HR max predicted for the age and measured by heart rate monitor.
The Borg scale will be used at the beginning and the end of each active period in order to measure the subjective effort of the participants.
In the end the volunteers will be sitting 5 hours and have 30 minutes (3 bouts of 10 minutes) of moderate intensity physical activity.
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Change in blood glucose area under curve during 5 hours in four different phases of intervention
Zeitfenster: 4 weeks
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Assessed by serial blood sampling.The first blood sampling is performed 30 minutes before ingestion of a standard meal mixed solution composed of carbohydrate, fat and protein.
The collection of serial blood will be collected in time (-30min, Baseline, 30min, 1h, 2h, 3h, 4h and 5h after the meal).
The results will be expressed in mg.dl.
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4 weeks
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Change in insulin area under curve during 5 hours in four different phases of intervention
Zeitfenster: 4 weeks
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Assessed by serial blood sampling.
The first blood sampling is performed 30 minutes before ingestion of a standard meal mixed solution composed of carbohydrate, fat and protein.
The collection of serial blood will be collected in time (-30min, Baseline, 30min, 1h, 2h, 3h, 4h and 5h after the meal).The results will be expressed in µIU/ml.
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4 weeks
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Assessment of physical performance
Zeitfenster: 1 day
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The physical performance will be evaluated by the Short Physical Performance Battery test.
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1 day
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Assessment of handgrip strength
Zeitfenster: 1 day
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Measure of handgrip strength with a manual dynamometer (Saehan)
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1 day
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Assessment of muscle strength of knee extensors
Zeitfenster: 1 day
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Measure of muscle strength of the lower limbs (knee extension) with a isokinetic dynamometer (Biodex 4 Pro)
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1 day
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Physical Activity behaviour
Zeitfenster: 7 days
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use of a tri-axial accelerometer to measure profile of spontaneous physical activity
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7 days
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Change in Inflammatory Cytokines area under curve during 5 hours in four different phases of intervention
Zeitfenster: 4 weeks
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Assessed by serial blood sampling.
The first sampling is performed 30 minutes before ingestion of a standard meal mixed solution composed of carbohydrate, fat and protein.
The collection of serial blood will be collected in time (-30min, Baseline, 30min, 1h, 2h, 3h, 4h and 5h after the meal).
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4 weeks
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Eduardo Ferriolli, PhD, USao Paulo
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- Dunstan DW, Kingwell BA, Larsen R, Healy GN, Cerin E, Hamilton MT, Shaw JE, Bertovic DA, Zimmet PZ, Salmon J, Owen N. Breaking up prolonged sitting reduces postprandial glucose and insulin responses. Diabetes Care. 2012 May;35(5):976-83. doi: 10.2337/dc11-1931. Epub 2012 Feb 28.
- Chastin SF, Egerton T, Leask C, Stamatakis E. Meta-analysis of the relationship between breaks in sedentary behavior and cardiometabolic health. Obesity (Silver Spring). 2015 Sep;23(9):1800-10. doi: 10.1002/oby.21180.
- Benatti FB, Ried-Larsen M. The Effects of Breaking up Prolonged Sitting Time: A Review of Experimental Studies. Med Sci Sports Exerc. 2015 Oct;47(10):2053-61. doi: 10.1249/MSS.0000000000000654.
- Bailey DP, Locke CD. Breaking up prolonged sitting with light-intensity walking improves postprandial glycemia, but breaking up sitting with standing does not. J Sci Med Sport. 2015 May;18(3):294-8. doi: 10.1016/j.jsams.2014.03.008. Epub 2014 Mar 20.
- Bailey DP, Broom DR, Chrismas BC, Taylor L, Flynn E, Hough J. Breaking up prolonged sitting time with walking does not affect appetite or gut hormone concentrations but does induce an energy deficit and suppresses postprandial glycaemia in sedentary adults. Appl Physiol Nutr Metab. 2016 Mar;41(3):324-31. doi: 10.1139/apnm-2015-0462. Epub 2015 Dec 14.
- Dunstan DW, Wiesner G, Eakin EG, Neuhaus M, Owen N, LaMontagne AD, Moodie M, Winkler EA, Fjeldsoe BS, Lawler S, Healy GN. Reducing office workers' sitting time: rationale and study design for the Stand Up Victoria cluster randomized trial. BMC Public Health. 2013 Nov 9;13:1057. doi: 10.1186/1471-2458-13-1057.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Studienbeginn
Primärer Abschluss (Voraussichtlich)
Primärer Abschluss
Studienabschluss (Voraussichtlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 1563/2015
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