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>Google "Karvonen Formula" and you will get a really good >method of calculating your target heart rate. > >Speaking of heart rates, I was reading about competitive >cyclists online last night, and the legendary cyclist Miguel >Indurain's resting heart rate is between 30 and 32 bpm. Mine's...

My resting HR is barely 60BPM. I know most peoples HR is twice that. How do I determine where my HR should be during exercise? Would my target HR still be the same? I need to get batteries for my heart rate monitor. I have one of those watch HR monitors. Also what HR monitor do you recommend...

Where would I begin? I have been going to college for nursing but haven't earned any degrees yet. I have taken some Anatomy classes, physhology, chemisrty, and biology. Would I be able to go online and get certified to work at a gym? My question is do I just need to be certified or do I need...

Hi! I was wondering if jumping on the trampoline counts as cardio? I do cardio 3 days a week and lift the other days. I don't have much time to work out around my kids so I thought I could jump on the trampoline and spend time with them while I workout. I would be doing this on the days I lift...

Just curious what size do you use on the video? They look so big.LOL

I am not really tall I am 5"2 but I just bought a stability ball 65cm and it doesn't look as big as the ones on the Cathe videos. Does anyone know what size they are? I tried to see if I could purchase one from Cathe.com but couldn't find any.

I was just curious as to the temp. in the room you are working out in when you wear pants? I get extremely hot when working out. I have to wear shorts & a sports bra, even if it's winter.

Thanks for answering my question, I think you look amazing. I don't know how long I plan on breastfeeding but I know that I am still improving my fitness level. So maybe my abs are "there" just under the layer of fat needed for breastmilk.

I was reading on your website that you breastfed. I was just wondering if you was able to gain any muscle or just maintain while breastfeeding. If you don't mind my asking, how long did you breastfeed? My son is 8 weeks and I have been breastfeeding exclusively. I do your workouts 6 days a...

When you injured your knee how much time did you take off from lifting and cardio? Did you modify any at all or did you stay away from exercise completely? I injured my knee a couple weeks ago and have still been doing you step videos and light lower body work but my knee never seems to get...

My knee doesn't usually hurt when doing lunges but last week I used heavier weight and incorrect form. I can't wait till it gets better. I miss my "jumps" and step videos.

I hurt my knee 2 weeks ago doing lunges. For the past 2 weeks I have continued to do cardio but I have modified and haven't done any of Cathe's step workouts mostly KPC & Kickmax. I have only lifted weights for my upper body except yesterday I did PourHour but did not do the lunges. My knee...

Cathe you are such an inspiration to me and it would be really motivating if I had a Cathe Friedrich poster on my bedroom wall. I have searched everywhere and cannot find one. Just a suggestion;) love your workouts and looking forward to my NEW collection that is being shipped!

I am 32 weeks and I still use protein powders. I drink a protein shake after I lift weights, which is 3 shakes a week. I haven't had any problems.:D

Does anyone know how many inches the step is used in the Pyramid Lower Body workout? I don't have the high step but I use the firm fanny lifter. I was wondering if it was the same height.

I ordered all of the new Cathe workouts. I am due to have baby #3 in Dec. (I'm 31 weeks) and still enjoying Cathe's workouts. I have almost all of her workouts but some (that have alot of jumping) I have to modify but I give it my all. I have had to lower my weight for lunges though. I feel...

My CTX DVD has just arrived the complete (2 disk set)and for those of you who have it, I was wondering what order to do this series?

I am not new to your workouts but I have recently purchased the terminator. So far I have done it twice with no problems and my pregnancy is going great so far. In you opinion, is the terminator too much with all the jumping or would you modify it? Thanks, I enjoy your workouts!

Can someone tell me how long each workout is? I just got it in the mail today and very excited to do this workout tomorrow. Just wanted to start out with the shortest or easiest.:D If ya know what I mean. Thanks.

Can someone tell me what hsta is? is it the high step challenge?