- Title
- Improving health-related fitness in adolescents: the CrossFit TeensTM randomised controlled trial
- Creator
- Eather, Narelle; Morgan, Philip James; Lubans, David Revalds
- Relation
- Journal of Sports Sciences Vol. 34, Issue 3, p. 209-223
- Publisher Link
- http://dx.doi.org/10.1080/02640414.2015.1045925
- Publisher
- Routledge
- Resource Type
- journal article
- Date
- 2016
- Description
- The aim of this study was to evaluate the preliminary efficacy and feasibility of the CrossFit TeensTM resistance training programme for improving health-related fitness and resistance training skill competency in adolescents. This assessor-blinded randomised controlled trial was conducted in one secondary school in the Hunter Region, Australia, from July to September 2013. Ninety-six (96) students (age = 15.4 (.5) years, 51.5% female) were randomised into intervention (n = 51) or control (n = 45) conditions for 8-weeks (60 min twice per week). Waist circumference, body mass index (BMI), BMI-Z score (primary outcomes), cardiorespiratory fitness (shuttle run test), muscular fitness (standing jump, push-up, handgrip, curl-up test), flexibility (sit and reach) and resistance training skill competency were measured at baseline and immediate post-intervention. Feasibility measures of recruitment, retention, adherence and satisfaction were assessed. Significant group-by-time intervention effects were found for waist circumference [-3.1 cm, P < 0.001], BMI [-1.38 kg · m-2, P < 0.001], BMI-Z [-0.5 z-scores, P < 0.001], sit and reach [+3.0 cm, P < 0.001], standing jump [+0.1 m, P = 0.021] and shuttle run [+10.3 laps, P = 0.019]. Retention rate was 82.3%. All programme sessions were delivered and participants' mean satisfaction scores ranged from 4.2 to 4.6 out of 5. The findings demonstrate that CrossFit TeensTM is a feasible and efficacious programme for improving health-related fitness in adolescents.
- Subject
- physical fitness; physical education; body composition; resistance training; adolescents
- Identifier
- http://hdl.handle.net/1959.13/1319696
- Identifier
- uon:23939
- Identifier
- ISSN:0264-0414
- Rights
- This is an Accepted Manuscript of an article published by Taylor & Francis in journal of Sports Science on 14/05/15, available online: http://www.tandfonline.com/10.1080/02640414.2015.1045925
- Language
- eng
- Full Text
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