You've almost surely experienced that feeling when you hear your favorite song or a really great beat and you feel like moving. Whether it's dancing, running, weight training, using the machines, or just about any physical activity, adding music to a workout almost instantly kicks it up to high gear. Though you're probably familiar with the feeling, you might not know why exactly music has that effect. It all has to do with the beats per minute (BPM) of the song and your heart rate. Working out raises your heart rate (the number of times it beats per minute... starting to see the connection?), and just how much depends on the activity. In choosing your workout playlist, you'll notice that songs with BPM that correspond to your heart rate will have the best effect. Twenty minutes of cardio will raise your heart rate to about 120. Songs whose BPM correspond include "Umbrella" by Rihanna and "Run Like Hell" by Pink Floyd among others. A more rigorous activity like running or playing a sport can raise the heart rate to anything from 147 to 160 and higher. The Speed Racer theme "Go, Speed Go" by Alpha Team has a BPM of 150, and Andrew W.K.'s "We Want Fun" has a BPM of 182; both are sure to keep you going during your most intense workouts.

With the iMuffs, you can ride your music high without worry about snagging or untangling the wires.
The best way to structure your playlist is to start with songs around 120 BPM to correspond with your warm-up and increase the BPM to carry you through your peak, then bring it back down for a cool down. Check out this New York Times article to read more about the effects of music on your workout: NY Times

Who knows better than a personal trainer what works and doesn't work when it comes to exercise? Here's what they've been saying about the iMuffs:

"I just had the most amazing workout EVER! The IMUFFS are the best! I've used every brand out there and the IMUFFS are second to none! I was amazed at the sound quality, especially when I placed my ipod 10ft away to do heavy deadlifts. I told everyone I saw in the gym about the IMUFFS."
-Tom Armenta, Armenta Fitness, Diakadi Body, San Francisco

"I worked out more that week with [iMuffs] than I ever have!"
-Tom Armenta, Armenta Fitenss, Diakadi Body, San Francisco

"Incredibly Intuitive and easy to use!"
-Lynne Anderson, Diakadi Body, San Francisco

Now, we didn't invent Bluetooth or even wireless headphones, but the iMuffs were specifically designed to be the best sounding product when paired with the iPod. Other products on the market incorporate Bluetooth technology, but the iMuffs, together with their adapter, operate at the highest quality level of Bluetooth around. You'll be hard-pressed to find a product on the market that delivers better sound quality from the iPod; we certainly don't know of one. From the technological components to the physical design, every aspect of the iMuffs contributes to superior sound. That is exactly why we (along with tons of customers and reviewers) can confidently say the music you'll hear from your iPod is comparable to CD quality.

How many times have you been working out with your iPod and suddenly snagged your hand or elbow on your wires, ripping the bud from your ear or hurling your iPod in the air? How did that feel? That's what we thought. Kick your wires to the curb and release your workout with the Bluetooth technology of the iMuffs.

"...ideal for getting rid of those short ear buds that come with the iPod (or just the messiness of wires with any other headphones). Best of all, the iMuffs provide quality stereo sound in addition to convenience."
-Michael Lee, Campus Circle

"The iMuffs are easily the best sounding Bluetooth headphones we've ever used."
-Jason Tomaczak, Digital Trends

"Thank you, thank you, thank you, Wi-Gear."
-Gundeep Hora, Cool Tech Zone

"I've been using the iMuffs for several weeks now and can say without hesitation, it would be extremely difficult to ever wear wired ear buds again."
-Kerry Woo, Gear Diary

"The iMuffs worked flawlessly"
-Ian Bell, Digital Trends