Hi all,
I've had an issue lately when training with a weighted backpack, and I'm not sure why. When I jump on a stairmaster with my 25L pack (loaded between 45 and 60 pounds) I experience rapid fatigue and painful cramping in my hip flexor complex and lower back, and especially in my right gluteus minimus.
I have always had some hip flexor imbalances and recently had some glute/hamstring atrophy due to injury, but it's so bad I can only stomach 25-30 minutes at a time.
Is it possible that a poorly loaded pack is contributing to the issue? If so, is the weight likely sitting too high/too low/not close enough to spine? I've been using Kettlebells in my pack that may not sit as well as bags of rice or beans.
Any input is appreciated. Thank you!