The Fitbit has just been launched. It accurately tracks calories burned, steps taken, distance traveled and even sleep quality. The Fitbit contains a 3D motion sensor similar to the one found in the Nintendo Wii. It works by tracking your movement in three dimensions and converts this data into useful information about your daily activities.

The main improvement over the Nike + Ipod sensor is its wireless capacity. Anytime you walk past the included wireless base station, data from your Fitbit is automatically uploaded to Fitbit.com. The Web site's detailed data includes a food budget, calories burned, steps taken, and daily trends.

Read more: The Fitbit Tracks All Your Activities

Electrical muscle stimulation or EMS, is the elicitation of muscle contraction using electric impulses generated by a device and delivered through electrodes on the skin in direct proximity to the muscles to be stimulated.

EMS causes muscle fibers to become 'trained' without having to exercise with weights. Different types of muscle fibers can be activated by different types of EMS. Patterns, referred to as protocols or programs, will cause a different response from different muscle fiber types. Some programs will improve fatigue resistance and improve endurance, others will increase strength. EMS can be used both as a training and a therapeutic tool.

Read more: Difference Between Electrical Muscle Stimulation and TENS

I've been riding my bike a lot lately and finally decided to get a computer for it. I ended up choosing the cateye velo 8. On the CatEye website it says the Velo 8 is CatEye's entry level leader complete with calorie consumption counter. There was a slightly cheaper model but I thought the calorie counter would be a good option to have. CatEye have more expensive models as well with heart rate monitors built in, but for the price, this will do me for now.

Installation was easier than I thought. It came with the computer, the sensor, a small magnet that attaches to the spokes of the front wheel and a bunch of cable ties. The computer and sensor are attached by a wire but by using the cable ties and twisting the wire around the brake cable it looks neat enough.

Read more: CatEye Cycle Computer Review - Velo 8

Here's a novel way to help employees loose weight in the office. Its called the walkstation. By replacing the office chair with a slow moving treadmill, workers will naturally burn more calories. The work station is elevated so you can work away while taking a stroll. The idea is not to work up a sweat but just to keep you slowly moving so you can still use the computer, read email, have meetings, and make phone calls.

Researchers have found that compared to sitting and working, working while walking can burn an extra 100 to 130 calories an hour. And that's at just 1 mile an hour.

Read more: The Walkstation - For Loosing Weight At Work

The world record for a person holding their breath underwater is currently 17 minutes and 19 seconds. This type of competition is called static apnea and is usually attempted in a pool. Apnea is the scientific term for breath-holding, literally meaning 'without air'. Competitors can breathe pure oxygen for up to 30 minutes before the attempt. Although these records are recognized by Guinness, they are not recognized by the free diving community which do not allow the breathing of pure oxygen.

In 2007, German engineering student Tom Sietas set a world record by holding his breath for 15 minutes and 2 seconds. He beat his previous time by 37 seconds. His secret is to fast for 5 hours before the attempt to get his metabolism down. He then breathed bottled oxygen for 20 minutes before plunging into a tank in New York City. He also holds the record for holding his breath without bottled oxygen at 9 minutes and 8 seconds. Thirty-year-old Sietas apparently has lungs 20 percent larger than the norm for someone his size.

Read more: World Record Breath Holding - Static Apnea

The Ski-Mojo is a device from UK-based Kinetic Innovations Ltd which uses springs strapped to the side of the legs to boost thigh power. The user can then keep their legs in a squatting position for longer, alleviating aches and pains after a long day of skiing.The idea was dreamt up by Owen Eastwood, a British engineer who began skiing aged 55 but found that his legs were holding him back. The solution, in development for 11 years and launched last week, is the Ski-Mojo, which its makers claim reduces fatigue, and improves stability and control for skiers of all standards. 'It's the equivalent of adding power steering to a car,' they say.

The skier wears a strap around the buttocks, connected to the spring-loaded arms running down to the knee, which in turn are connected by carbon fibre rods to the back of the boots. The springs hold you in a knees-bent position, and you can hold a tuck without your thighs burning. After you bend down, you are 'automatically' popped back upright without effort and far faster than usual, ready for the next turn.

Read more: Ski-Mojo for Assisted Skiing

For 20 years or more it has been known that a persons lung capacity is an indicator of longevity. The "Framingham Heart Study" found that "The bigger that your lungs are the longer your life will be". Lung capacity provides information about the general health of the lungs.

Until recently the capacity for the lungs couldn't be physically increased, however stem cell treatments are beginning to emerge that may offer hope to those with damaged lungs or even give an edge to athletes. There are also ways to improve the efficiency of your lungs and prevent volume loss as you age.

The average human lungs hold about 5 liters of air. It was recently revealed that Grant Hacket, an Australian swimmer and one of the supreme athletes of world sport, has a whopping 13 liter lung capacity. Lung capacity can vary with height and age, sex, weight and degree of physical activity. Females tend to have 20-25% lower capacity than males and tall people tend to have more lung capacity then shorter people.

Read more: How To Increase Lung Capacity