Creatine or Vitamin D Supplementation in Persons With Spinal Cord Injury Undergoing Resistance Training

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02099357

Enrollment

Registered

2014-03-28

Start date

2014-09-30

Completion date

2015-07-31

Last updated

2015-08-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Spinal Cord Injuries

Brief summary

The purpose of this study is to determine the effects of creatine monohydrate or vitamin D supplementation on strength gains following a traditional resistance training program for adults with spinal cord injury.

Interventions

DIETARY_SUPPLEMENTCreatine

Daily supplementation with 3g of monohydrate creatine during 8 weeks

DIETARY_SUPPLEMENTPlacebo

DIETARY_SUPPLEMENTVitamin D

Vitamin D supplementation with 25000 IU each two weeks during eight weeks

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

SUPPORTIVE_CARE

Masking

TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Spinal cord injury * Minimum time since injury: 3 months

Exclusion criteria

* Participation in resistance training programmes in the previous 6 months * Creatine or vitamin D supplementation in the previous 6 months

Design outcomes

Primary

Measure	Time frame	Description
Body Mass Index	8 weeks	—
Sum of 4 skinfold	8 weeks	Triceps, Biceps, Subscapular and Iliac crest
Corrected Arm Muscle Area	8 weeks	—
Seated Medicinal Ball Throw	8 weeks	—
Handgrip Strength with Hand Dynamometer	8 weeks	—
Manual Wheelchair Slalom Test	8 weeks	—

Countries

Portugal

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026