Effects of digital home exercise programs on physical and mental well-being during the COVID-19 pandemic: a multi-center trial

INTERVENTION: Intervention 1: Home‐based exercise training Participants in the intervention group receive a 4‐week, digital (video livestream) home exercise program. In each country various course with different durations and contents (e.g. strength or endurance training, balance training or relaxation exercises) will be offered. They can be freely used. After the 4 weeks, the participants have another 4‐week access to a digital archive containing pre‐recorded exercise sesisons. Intervention 2: inactive wait‐control group The members of the wait‐control group do not exercise during the initial 4 weeks. After the 4 weeks, the participants have a 4‐week access to a digital archive containing pre‐recorded exercise sesisons. CONDITION: Fitness training in healthy individuals PRIMARY OUTCOME: Physical and mental well‐being assessed with questionnaire battery; ; ‐ Nordic Physical Activity Questionnaire, short‐form; ‐ WHO5‐questionniare; ‐ Graded Chronic Pain Scale; ‐ MOS sleep scale; ‐ Generalized Anxiety Scale 7 SECONDARY OUTCOME: Frequency of use of digital training interventions INCLUSION CRITERIA: ‐ Age of 18 or older ‐ voluntary consent for study participation ‐ unrestricted sporting ability (Physical Activity Readiness Questionnaire)