Strength exercises during physical education classes in secondary schools improve body composition: a cluster randomized controlled trial.
Gill A Ten HoorG M RuttenG J P Van BreukelenG KokR A C RuiterK MeijerS P J KremersF J M FeronR CrutzenA M J W ScholsG PlasquiPublished in: The international journal of behavioral nutrition and physical activity (2018)
In 11-15 year olds, the combination of strength exercises plus motivational lessons contributed to an improvement in body composition and a smaller decrease in physical activity level. TRIAL REGISTRATION ID: ( NTR5676 - retrospectively registered 8 February 2016; enrolment of first participant: 2 March 2015).