High Intensity Strength Training & Bone Mineral Density in Young Women

NCT01482130 | Completed

• 1 other identifier: REK-2011/2039
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

The current guidelines emphasize the prevention of bone loss, by building up bone mass in young age, as one of the most important measures to reduce the incidence of osteoporosis. Strength training and "explosive" exercises have been shown to have beneficial effects on bone mass and bone metabolism in both young and postmenopausal women. However, meta-analysis concludes that it is still unclear what type of exercises, intensity and execution that is most effective for skeletal adaptations. The following study will examine the effect of 12 weeks of heavy, explosive strength training on bone mineral density and bone metabolism in young, healthy girls aged 18-30 years.

Conditions

Osteoporosis

Keywords

Exercise; osteoporosis; prevention

Outcome Measures

Primary Outcomes (1)

• Bone mineral density

  (Dual X-ray Absorptiometry)

  Baseline and 12 weeks

Secondary Outcomes (4)

• Serum markers of bone metabolism

  Baseline and 12 weeks

• Body composition

  Baseline and 12 weeks

• Maximal muscle strength

  Baseline and 12 weeks

• Rate of force development

  Baseline and 12 weeks

Study Arms (2)

Training group

EXPERIMENTAL

All participants in the training group will pursue a 12 weeks of strength training.

Behavioral: Heavy, explosive strength training

Controls

OTHER

The control group will be encouraged to follow a training program according to recommended exercise guidelines

Behavioral: recommendations

Interventions

Heavy, explosive strength training BEHAVIORAL

All participants of the training group will pursue a 12 weeks of heavy, explosive strength training, 3 sessions a week for a total of 36 sessions. The training session will include one squat exercise only, which allows muscle contraction of the quadriceps from a 90° bend at the knees to straight legs.

Training group

recommendations BEHAVIORAL

The control group will be encouraged to follow a training program according to recommended exercise guidelines: * Weight bearing activities (walking, jogging or strength training) * 30 - 60 minutes, 3 - 5 times each week * A total of 2 - 3 hours each week should be achieved

Controls

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Participants include young and healthy women between the ages of 18-30, who have not engaged in strength training for the last 6 months.

You may not qualify if:

• Subjects will be excluded from the study if they have any condition that preclude them from taking part in the exercise testing procedures or the 24 week exercise program or if they fail to obtain the required amount of training sessions.

Sponsors & Collaborators

• Norwegian University of Science and Technology: lead

Study Sites (1)

Norwegian University of Science and Technology

Trondheim, Sor.tronderlag, 7030, Norway

Location

Related Publications (1)

• Mosti MP, Carlsen T, Aas E, Hoff J, Stunes AK, Syversen U. Maximal strength training improves bone mineral density and neuromuscular performance in young adult women. J Strength Cond Res. 2014 Oct;28(10):2935-45. doi: 10.1519/JSC.0000000000000493.

  PMID: 24736773 RESULT

MeSH Terms

Conditions

Osteoporosis; Motor Activity

Interventions

Health Planning Guidelines

Condition Hierarchy (Ancestors)

Bone Diseases, Metabolic; Bone Diseases; Musculoskeletal Diseases; Metabolic Diseases; Nutritional and Metabolic Diseases; Behavior

Intervention Hierarchy (Ancestors)

Health Planning; Health Care Economics and Organizations

Study Officials

• Unni Syversen, MD, PhD

  Norwegian University of Science and Technology

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 16, 2011
• First Posted: November 30, 2011
• Study Start: November 1, 2011
• Primary Completion: April 1, 2012
• Study Completion: June 1, 2012
• Last Updated: August 1, 2016

Record last verified: 2016-07

Locations

NO (1)