Originally posted by: 0roo0roo
no, as long as you drink during long workouts or after.
caffine is a known performance enhancer actually.
Originally posted by: redheadednurse
Good question! From the medical research I've seen it's not the best idea to drink coffee before working out. It can cause your heart rate to increase even before you start your cardio exercise and if you work out often then you know that you should keep your HR close to your Target Heart Rate and not too much above it! Especially be conscious of this if you had a history of heart problems in your family b/c you can really damage your heart! And drinking water is key! Be safe and be healthy! 😉
The small increase you would get from any less than 1800mg (about 8 cups of coffee) is not significant... I wish it was though, then you could just drink coffee and stay in your target heart rate zone all day long...
Originally posted by: Fausto1
This is totally anecdotal, but I feel like I get a better workout in if I knock back a couple cups of coffee before heading out on a ride. The little caffeine boost makes my legs feel snappier on the hills and just generally more into what I'm doing (30-50 mile bike ride usually). I have noticed that much more than two cups and my heartrate will definitely go a bit higher than usual on climbs so two's usually the limit for me. I've never done any kind of "exeriment" to see if the glycogen-sparing effects make any real difference with endurance, but I figure it can't hurt. 😉