Questa pagina è stata tradotta automaticamente e l'accuratezza della traduzione non è garantita. Si prega di fare riferimento al Versione inglese per un testo di partenza.

Preventing Diabetic Osteoporosis With Exercise (DIABETICBONE)

26 aprile 2019 aggiornato da: Dr. Katarina Borer, University of Michigan

Parameters of Exercise to Prevent Type 2 Diabetic Osteoporosis in Postmenopausal Women

The two specific aims of the study were to determine whether:

  1. Greater mechanical loading of downhill exercise will increase the osteogenic index (ratio between CICP, the marker of bone formation (c-terminal propeptide of type I collagen, and CTX, the marker of bone resorption (c terminal telopeptide of type I collagen)) to a greater extent than uphill exercise that provides lower ground-reaction force;
  2. Exercise after the meals will induce greater osteogenic response than exercise pefore the meals as it is known that meal eating during daytime inhibits bvone resorption markers.

Panoramica dello studio

Stato

Completato

Condizioni

Descrizione dettagliata

The study addresses the problem that postmenopausal women with type 2 diabetes have a higher incidence of bone breaks despite their often normal bone mineral density (BMD).

The investigators pursued two hypotheses, that:

  1. 40-minute bout of downhill exercise will increase the CICP/CTX osteogenic index to a greater extent than the same amount of uphill exercise; and
  2. Performing exercise one hour after the meals will be more osteogenic than exercise before the meals.

Subjects were 15 postmenopausal women with type 2 diabetes, age 57.7 years, BMI 27.2 kg/m2 who were randomly assigned to two out of 5 trials:

Uphill exercise before the meals (UBM), Uphill exercise after the meals (UAM), Downhill exercise before the meals (DBM), Downhill exercise after the meals (DAM), and Sedentary, no-exercise, trial (SED). All subjects signed an informed consent approved by the University of Michigan Medical School Institutional Review Board. Subjects had their BMD measured with DXA at the outset.

Weight-maintenance meals contained 50% carbohydrate, 15% protein, and 25% fat and were provided at 10 h and 17 h. Exercise (40 minutes at 50% of maximal effort) on either uphill (+6o slope) or downhill treadmill (-6o slope) was performed either before the two meals, at 9 h and 16 h, respectively, or after the meals. at 11 h and 18 h, respectively.

Blood was drawn through an intravenous catheter from ante-cubital vein at hourly intervals between 8 and 20 h with two additional blood draws at 0 h and 6 h the next morning. Blood was treated with protease inhibitors, and plasma, frozen at -80o C, was used to measure bone markers, CICP, CTX, osteocalcin , and bone-specific alkaline phosphatase using Millipore chemoluminescen reagents, glucose by glucose oxidase, and hormones insulin, cortisol, parathyroid hormone (PTH) , and growth hormone (GH) by radio-immunoassays..

Mixed-model ANOVA was used for analysis of outcome measures where the trial procedures served as fixed variable and individual subjects as intercept variables.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

15

Fase

  • Non applicabile

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 50 anni a 65 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Femmina

Descrizione

Inclusion Criteria:

postmenopausal type-2 diabetes melllitus age between 50 and 65 exercise less than 20 minutes three times a week

Exclusion Criteria:

metabolic disease other than type-2 diabetes and hormonally-corrected hypothyroidism musculo-skeletal disability that would preclude exercise smoker do not meet inclusion criteria

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Scienza basilare
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione fattoriale
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Uphill exercise before the meals
40 minutes of uphill treadmill exercise at +6o slope completed 1 hour before eating the meal
40 minutes of uphill exercise
40 minutes of uphill exercise completed 1 h before the meal
40 minutes of downhill exercise completed 1 hour before the meal
Sperimentale: Uphill exercise after the meals
40 minutes of uphill treadmill exercise at +6o slope started 1 hour after eating the meal
40 minutes of uphill exercise
40 minutes of uphill exercise started 1 hour after gthe meal
40 minutes of downhill exercise started 1 hour after the meal
Sperimentale: Downhill exercise before the meals
40 minutes of downhill treadmill exercise at -6o slope completed 1 hour before eating the meal
40 minutes of uphill exercise completed 1 h before the meal
40 minutes of downhill exercise completed 1 hour before the meal
40 minutes of downhill exercise
Sperimentale: Downhill exercise after the meals
40 minutes of downhill treadmill exercise at -6o slope started 1 hour after eating the meal
40 minutes of uphill exercise started 1 hour after gthe meal
40 minutes of downhill exercise started 1 hour after the meal
40 minutes of downhill exercise
Comparatore fittizio: Sedentary trial
A trial with no exercise
Sedentary no-exercise trial
Meals eaten at 10 and 17 h during a sedentary trial

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
C-terminal propeptide of type I collagen
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of c-terminal propeptde of type 1 collagen (ng/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
C-terminal telopeptide of type 1 collagen
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of c-terminal telopeptide of type 1 collagen (ng/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Osteocalcin
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of osteocalcin (ng/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Bone-specific alkaline phosphatase
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of bone-specific alkaline phosphatase (ng/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Insulin
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of insulin (µU/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Parathyroid hormone
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of parathyroid hormone (ng/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Cortisol
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of cortisol (m/L)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Growth hormone
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of growth hormone (ng/ml)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Glucose
Lasso di tempo: Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Change over time in plasma concentration of glucose (mg/dl)
Hourly over 12 hours from the start of the trial, then at 16 hours, and at 22 hours, after the start of the trial
Dual-energy X-ray radiography
Lasso di tempo: A week prior to the study baseline
Whole-body dual-energy X-ray radiography scan
A week prior to the study baseline
Novel Pedar
Lasso di tempo: During two one-hour bouts of the exercise intervention
Mechanosensitive shoe inserts for measurement of ground reaction force
During two one-hour bouts of the exercise intervention

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Investigatori

  • Investigatore principale: Katarina T Borer, Professor Emerita

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

8 ottobre 2009

Completamento primario (Effettivo)

5 dicembre 2012

Completamento dello studio (Effettivo)

20 dicembre 2012

Date di iscrizione allo studio

Primo inviato

19 aprile 2019

Primo inviato che soddisfa i criteri di controllo qualità

26 aprile 2019

Primo Inserito (Effettivo)

29 aprile 2019

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

29 aprile 2019

Ultimo aggiornamento inviato che soddisfa i criteri QC

26 aprile 2019

Ultimo verificato

1 aprile 2019

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • HUM32227/ HUM32700
  • R15DK082800 (Sovvenzione/contratto NIH degli Stati Uniti)
  • M01RR024986 (Altro numero di sovvenzione/finanziamento: Michigan Institute of Clinical and Health Research)

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .