Struggling to get through your workouts? The quality of your sleep may be the cause.
Shoring up your energy reserves will give your New Year's resolutions a fighting chance to succeed.
Are your body and mind adequately conditioned for the pounding they will take during athletic training?
When it comes to endurance, do you go au natural, or do supplements help you keep going?
Ignoring shortcomings only limits performance come race time. Try these exercises to help address some of the most common weaknesses in runners.
"Going anaerobic" can be a challenge for cyclists, but learning how to push yourself into oxygen debt will significantly improve time trial performance.
Building endurance isn't as difficult as it may seem. Try these three simple steps to take your workout to the next level.
You may have learned about muscles in high school biology, but things take on a whole new meaning when you dedicate these muscles to a sport.
When prepping for your next high-altitude adventure, follow these tips — and take AltitudeRx before you ascend.
Before your next important race, determine whether your weaknesses may prove to be "limiters."
What are the symptoms of altitude sickness, and what can you do to acclimate when travelling to high altitudes?
Find out which medications are used to treat altitude or elevation sickness.