Can strength training change the strength, body shape and self esteem of overweight teenage boys?

• Register: ANZCTR
• Last refreshed on: 13 January 2020
• Main ID: ACTRN12609001078246
• Date of registration: 16/12/2009
• Prospective Registration: Yes
• Primary sponsor: University of South Australia
• Public title: Can strength training change the strength, body shape and self esteem of overweight teenage boys?
• Scientific title: Can resistance training change the strength, body composition and self-concept of overweight and obese adolescent males? A randomised controlled trial.
• Date of first enrolment: 08/03/2010
• Target sample size: 34
• Recruitment status: Completed
• URL: https://anzctr.org.au/ACTRN12609001078246.aspx
• Study type: Interventional
• Study design: Purpose: Treatment; Allocation: Randomised controlled trial; Masking: Blinded (masking used);Assignment: Parallel;

Countries of recruitment

Australia

Contacts

• Name: Mrs Natasha Schranz

• Name: Mrs Natasha Schranz

Key inclusion & exclusion criteria

Inclusion criteria: The participants Body Mass Index (BMI) must be equal to or greater than the 85th percentile according to age-sex specific data collected in the 2007 National Children’s Nutrition and Physical Activity Survey.
Exclusion criteria: Participants are classed as < Tanner stage 2.
Participants are categorised as a high risk by the Sports Medicine Australia pre-exercise screening questionnaire and do not obtain a medical clearance.
Participants have current or have had previous injuries which would prevent them from participating in resistance training (e.g. knee reconstruction).
Participants exhibit musculoskeletal conditions which would place them ‘at risk’ as a result resistance training (e.g. severe scoliosis).

Age minimum: 13 Years
Age maximum: 17 Years
Gender: Males

Health Condition(s) or Problem(s) studied

Public Health - Other public health

Mental Health - Other mental health disorders

obesity 'adolescent males';
obesity 'adolescent males'

Intervention(s)

A 6-month resistance training program that will consist of three 1-hour sessions every week. Ten multi-joint exercises will performed at each session and and a trainer to particiant ratio of 1:2 will be maintained. This will ensure that the particiants lifting technique is correct and the appropriate feedback and encouragement is received.

Primary Outcome(s)

To improve self-concept.
This will be measured via questionnaires.[3-months into intervention, after the intervention (6-months) and at follow-up (12-months)]

Secondary Outcome(s)

To improve strength.
This will be assessed using one-repetition maximum testing for bench and leg press.[3-months into intervention, after the intervention (6-months) and at follow-up (12-months)]

To improve body composition.
This will be assessed via Dual Energy X-Ray Absorptiometry (DEXA) scans and also anthropometric measures such as skinfolds and girths. This will allow percent body fat and lean body mass to be assessed.[3-months into intervention, after the intervention (6-months) and at follow-up (12-months)]

Secondary ID(s)

None

Source(s) of Monetary Support

Natasha Schranz

Ethics review

Status: Approved
Approval date:
Contact:

University of South Australia Human Research Ethics Committee