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

Can resistance training change the strength, body composition and self-concept of overweight and obese adolescent males? A randomised controlled trial.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12609001078246
Enrollment
34
Registered
2009-12-16
Start date
2010-03-08
Completion date
2011-05-02
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

The primary purpose of this study is to determine whether participating in a 6-month strength training program can improve the strength, body shape and self-esteem of teenage boys. It is anticipated that at completion of the 6-month strength training program participants who took part in the intervention will show greater improvements in their self-esteem, strength and body shape relative to those participants who did not take part in the intervention.

Interventions

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.

Sponsors

University of South Australia
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Outcomes Assessor)

Eligibility

Sex/Gender
Male
Age
13 Years to 17 Years
Healthy volunteers
Yes

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).

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026