The efficiency of these workouts allows for a greater focus on quality over quantity ... to achieve significant fitness benefits in a short timeframe. A 20-minute HIIT session can incorporate ...

According to Olympian Jenny Stoute, 59, and 67-year-old PT Monika Akabusi, who specialises in fitness for women over 50, this cardio ... can be done in just 5-10 minutes. Repeat each exercise ...