Welcome to Workout Diaries, a new series where we ask expert trainers to talk us through what a week of exercise looks like for them, helping you figure out how to develop and maintain an effective workout routine.

Tess Glynne-Jones is a Nike trainer and the founder of The Female Training Programme .

She's an expert in strength training, but her workouts have changed recently, as she prepares for the Copenhagen Half Marathon. You may like

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