Can anyone direct me to simple 10/15 minute routine I can do at home either on a rest day or after a run? I'm in the early stages of a half/marathon (TBD!) training programme running 3x a week and swimming once and have done a long run in the past with similar training but a host of injuries and niggles tells me I need to add some muscle and core strength.
I have a should injury so struggle with kettlebell or upper body strength type exercises other than. That open to ideas.