I’ve begun having problems with light strains, and I would like some advice on how to avoid them. For the last three months I’ve been doing sprint training three times a week, and up until two weeks ago I didn’t have any problems, except sometimes needle-like pain across the quads during the last few sprints.
I assumed this was just lactic acid and finished those sessions. However, perhaps two weeks ago I pulled my left quad, quite lightly I think, since there wasn’t much pain after the first day. I applied RICE and avoided sprinting for two weeks. So, today I start sprinting again and right off the start in my first sprint I feel cramping in my left biceps femoris tendon and of course it’s pulled. I’ve applied RICE methodology here as well, and I only feel a light stretch so the strain is probably light, but I’m becoming afraid of doing more sprints. Funnily, I feel that my running technique has become better and that I take longer strides, and that this could be the reason for these strains.
I always warm up with jogging, plyometrics, hurdle jumping and several rounds of stretching (in total perhaps 30 minutes) before a sprinting session, and since I’ve pulled both sides of my leg I suppose that I don’t have a muscle imbalance between quads and hamstrings. I also do romanian deadlifts as part of my strength training routine, so the problem is probably not muscle weakness. I understand how to recover from the strains, but I would like advice on how to avoid them in the first place - is there anything I can do except avoiding sprints?