on the trot, some hard, some easy, then do a day at the gym. Sometimes when at the gym I blast my upper body and give my lower body a complete rest, which it doesn't half need. – Little LizardPlans some peaks and troughsYou can avoid this problem in future
in the same week.– Red Haired Girl Down UnderDon't overdo itIf you are that pooped from the run, you are probably overdoing it. Train carefully and slowly, then build intensity, speed and distance gradually. That way you will avoid injury and stay motivated