Table 1 Methodology used to prepare the German recommendations for physical activity

Phase 1

January–June 2015

1A: Systematic literature review of existing PA recommendations

1B: Survey of experts to establish quality criteria

Phase 2

May–August 2015

2A: Assessment of the identified PA recommendations using quality criteria

2B: Selection of high-quality PA recommendations as source recommendations

2C: Content analysis of the source recommendations

Phase 3

September–December 2015

3A: Synthesis of content analyses and derivation of the recommendations for health-effective PA