Physical inactivity is a global challenge and there is an urgent need to find strategies to increases people's activity levels. Strength training is one of the activities that is recommended to engage in regularly by both the American College of Sports Medicine and the World Health Organization. Understanding how strength training can be done effectively without spending much time could potentially increase people's involvement in strength training, as lack of time often is reported as barrier to training. Superset strength training can potentially be a time-efficient way of strength training, as this training method has been found to take half the time of the traditional ways of training.

The aim of the present study is therefore to compare the effects of superset strength training and traditional strength training on muscular strength, body composition and fatigue.

Inclusion Criteria:

• living in Trøndelag
• did not perform weekly strength training during the past 6 months.

Exclusion Criteria:

• any known severe somatic condition (e.g., autoimmune and systemic inflammatory diseases, cancer, severe osteoporosis)
• any known severe psychiatric condition
• other contraindications for heavy resistance training (e.g. shoulder pain).