Part of my duty as a fitness writer with a background in personal training is to try workouts and interrogate fitness fads so you, dear reader, don’t have to. At the start of the year, I undertook the 300 kettlebell swings a day challenge, which involved, you guessed it, doing 300 daily kettlebell swings every day for 30 consecutive days. Before going any further, I want to highlight that this is an advanced challenge and not one I’d recommend a beginner or even intermediate-level exerciser embark on. Article continues below You may like Even with my background I approached the challenge cautiously, starting with an extra light weight, breaking up the 300 swings with lots of rest, stretching thoroughly before and after, and resting and refuelling adequately when not performing kettlebell swings. Caveats aside, after 30 days, I was pleasantly surprised with the results. Performing daily hip hinges, the movement pattern that underpins the kettlebell swing, strengthened my glutes and loosened my hip flexors, helping reinforce my slightly weak and injury-prone lower back, while offsetting …