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BodyPump and Personal Training - Changes in Muscle Strength and Body Composition

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ClinicalTrials.gov Identifier: NCT01993953
Recruitment Status : Completed
First Posted : November 25, 2013
Last Update Posted : November 25, 2013
Sponsor:
Information provided by (Responsible Party):
Anne Mette Rustaden, Norwegian School of Sport Sciences

Brief Summary:

This study is a four armed randomized controlled trial (RCT) where the main purpose is to investigate the effect on muscle strength and changes in body composition in overweight (BMI ˂ 25) "not regularly exercising" women aged 18-65, after 12 weeks of Body Pump (BP), compared with an inactive control group. The study will also measure energy expenditure during one session of BP. At the same time, the project will investigate the effect on muscle strength and changes in body composition in group training with, respective without, a personal trainer (PT).

H0: There`s no different between the groups after 12 weeks of Body Pump and traditional strength training with and without a personal trainer on muscle strength and muscle mass in adult overweight females.

H1: There is a different between the groups after 12 weeks of Body Pump and traditional strength training with and without a personal trainer on muscle strength and muscle mass in adult overweight females.


Condition or disease Intervention/treatment Phase
Overweight Other: BodyPump Other: Personal training Other: Resistance training with instructor Not Applicable

  Show Detailed Description

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 144 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: BodyPump and Personal Training - Changes in Muscle Strength and Body Composition
Study Start Date : February 2011
Actual Primary Completion Date : April 2013
Actual Study Completion Date : April 2013

Arm Intervention/treatment
Active Comparator: BodyPump
Resistance training in group, with one instructor. This pre-choreographed class contains 10 to 12 exercises with a barbell, weights and a step. Number of repetitions throughout the class varies between muscle groups, but is generally high (20-100).
Other: BodyPump
Participants will be offered BP sessions at fitness centers in Oslo/Akershus. They will exercise three times a week. The instructors at all centers have a BP license from Les Mills, and the same program will be conducted at all centers at all times. The project manager has been in contact with Les Mills Scandinavia and has been given permission to use the training concept for research.

Active Comparator: Personal training
The PT will instruct proper technique to their clients, correct the training and technique, control the intensity and serve as a motivator at each training session.
Other: Personal training
Participants in this group will be offered training with a PT at the Norwegian School of Sports Sciences. They will exercise with their PT three times per week. The training program for this group will be based on the exercises in the BP class, but repetitions will vary between 3-15, and series between 2-4.

Active Comparator: Resistance training with instructor
Participants in this group are aimed to perform resistance training individually, based on two sessions with an instructor and a standarized training program given prior to the intervention. After six weeks, all participants in this group received a second instruction, as well as evaluation of the training protocol.
Other: Resistance training with instructor
Participants in this group will be invited to train on their own, three times a week, at the Norwegian School of Sports Science. Prior to the intervention period they will receive a training manual, instructions of the exercises and advice about progression during the intervention period. They will also have a follow-up with the same instructor after six weeks. The training program for this group will be the same as for group B. The PT`s from group B will also serve as training instructors.

No Intervention: Controlgroup
Control group - This group will be instructed to continue their activity and diet patterns. After the intervention period, they will be offered free exercise with BP at a fitness centre (12 weeks) and resistance training with a instructor at the Norwegian School of Sport Science.



Primary Outcome Measures :
  1. Muscle strength [ Time Frame: 12 weeks ]

    One repetition maximum (1RM) test and submaximal strength tests (60 % load of 1RM) in squats (lower body) and bench press (upper body):

    Implementation: After warming-up, which consists of three series of gradually increasing load (40-75-85% of predicted 1RM) and reduction of repetitions (12-7-3), the subjects conduct the first attempt with a load around 5% below the expected 1RM. As approved trials increases the demand of 2-5%, until the subject fails. Resting periods between attempts are 3 to 5 minutes. The coefficient of variation is <5.4% in all the 1RM tests (Paulsen et al 2003). Submaximal tests are done after 1RM, based on the results from 1RM. The testing will be conducted by masterstudents included in the project, as well as an external personal trainer who takes care of spotting during squat.



Secondary Outcome Measures :
  1. Body composition [ Time Frame: 12 weeks ]
    Changes in body composition will be measured with Inbody. Inbody separates adipose tissue and bonemass from other tissues in the body, leaving "lean body mass"(LBM). Any changes in LBM will primarily be due to changes in muscle mass.

  2. Blood-lipids, blood-sugar and cholesterol [ Time Frame: 12 weeks ]
    Capillary blood samples of the subjects is taken in fasting state, and will be used to analyze blood count (cholesterol (HDL, LDL), triglycerides, and glucose).


Other Outcome Measures:
  1. Questionnaire [ Time Frame: 12 weeks ]
    A questionnaire is included regarding different health perspectives, like subjective experiences from physical activities, motivation for exercise, attitudes toward physical activity and prevalence of musculoskeletal disorders.



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion criteria:

  • Women between 18 and 65 with BMI ≤ 25.0
  • Inactive the past six months; not been regularly physically active more than one hour each 14th.day
  • Able to transport themselves to training and testing
  • Able to understand Norwegian language written and oral
  • Healthy in the sense that they can conduct training and testing

Exclusion criteria:

  • Diseases or injuries being contraindicated for participation
  • Scheduled extended vacation or absence from training during the intervention period prior to enrollment (>2 weeks)
  • Pregnant
  • Obesity surgery
  • Psycological diseases

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01993953


Locations
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Norway
Norwegian School of Sports Sciences
Oslo, Norway, 0806
Sponsors and Collaborators
Norwegian School of Sport Sciences
Investigators
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Principal Investigator: Anne Mette Rustaden, MsC Norwegian School of Sports Sciences

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Anne Mette Rustaden, PhD student, Physiotherapist, Norwegian School of Sport Sciences
ClinicalTrials.gov Identifier: NCT01993953     History of Changes
Other Study ID Numbers: Boppet
First Posted: November 25, 2013    Key Record Dates
Last Update Posted: November 25, 2013
Last Verified: November 2013

Keywords provided by Anne Mette Rustaden, Norwegian School of Sport Sciences:
Muscle strength
Body composition
Body weight
Resistance training
Personal training
BodyPump

Additional relevant MeSH terms:
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Overweight
Body Weight
Signs and Symptoms