We 
asked exercise physiologist Michele Olson to design a plan that would 
offer the biggest metabolic boost in the shortest time. Oh, and it had 
to feel good, too. Enter METabata
Mary
 Lee Yelverton is quickly realizing that working out in an 
exercise-science lab is nothing like working out at a gym. For one 
thing, there's no music. The metallic tick of a metronome keeping her on
 track -- tick, squat down, tick, rise up -- is the only sound she can 
make out above the whoosh of her own breathing. Instead of windows and a
 watercooler, anatomy posters line the walls, and Yelverton is being 
monitored by a grad student crunching data at a nearby computer. 
Finally, there's the hazmat-like mask over her nose and mouth, connected
 via yards of white tubing to an apparatus that looks like a crash cart 
you'd see in a hospital. It would have drawn more than a few stares at 
boot camp, but at the Auburn Montgomery Human Performance Lab in 
Montgomery, AL, the Breaking Bad-with-hand-weights look is as normal as 
Lulu leggings at yoga.
"It's
 a metabolic cart, and it measures your intake of oxygen and output of 
carbon dioxide to determine how many calories you're actually burning," 
explained Michele Olson, PhD, an exercise physiologist and lead 
researcher at the lab, when Yelverton, 46, arrived that morning. 
Yelverton knew that Dr. Olson often conducts unique fitness experiments 
in her lab -- like pitting exercises against each other to see which one
 is truly tops for sculpting a strong core -- so she knew the routine 
could be groundbreaking. Still, she wasn't quite sure what to expect. 
When she agreed to be one of Olson's first guinea pigs, all the 
researcher had told her about the new routine was that it would be 
enticingly short, intense enough to spark a powerful metabolism burst, 
and yet enjoyable enough to want to do again. What could go wrong?
Inside
 the lab, things had started off normally enough. Olson had her fill out
 a questionnaire about her mood (tense, after a crazy morning getting 
her two teenage girls off to school). Then, while monitoring Yelverton's
 resting metabolic rate, the fit, 53-year-old researcher chatted about 
afterburn as casually as if it were the weather. "It's this supercool 
state that causes your body to continue burning calories at a higher 
rate for minutes to hours after your workout," Olson said. "But you 
really have to push to reach it."
Thanks
 to Olson, Yelverton is in the best shape of her life. (The back pain 
she struggled with in her 30s disappeared soon after she joined Olson's 
classes at a local gym.) But this routine feels different, and not just 
because of the strange mask. After just 6 minutes, Yelverton is pretty 
sure all the calories from her breakfast have been torched.
"You're almost there," Olson coaches. "Focus on your form."
Yelverton
 nods, widening her stance for a lunge. Two minutes from now, you'll be 
done for the day, she tells herself. You can do this.
As
 fitness fads go, tough, brief workouts can be a tricky sell. Yet 
CrossFit has built its brand on quick but killer workouts of the day, 
and any trainer or gym worth your cash teaches a version of 
high-intensity interval training (HIIT). By now, the shorter the 
workout, the more buzz it generates. The Scientific 7-Minute Workout 
took off last year after its appearance in the American College of 
Sports Medicine's Health & Fitness Journal caught the attention of 
the New York Times, while the Tabata Protocol (a 4-minute HIIT regimen 
named after Japanese professor Izumi Tabata, PhD, who helped develop it 
in the late '90s) is now an international phenomenon.
The
 problem is that Tabata and many of its ilk are far from a walk in the 
park. While a single Tabata session -- alternating between 20 seconds of
 max effort and 10 seconds of rest for 8 cycles -- can double your 
metabolic rate, it can be so unpleasant that it hardly seems worth the 
work. When Olson compared HIIT with continuous cardio, she found that 
HIIT lifted moods better than continuous cardio only up to a point. "If a
 workout is too extreme, it can actually create anxiety, leaving you 
feeling worse than before," she says. "When participants performed a 
bout of intense exercise to exhaustion, their mood states dipped."
Olson's
 idea of creating a routine with a killer burn but not the kill-me-now 
feeling began to form when she taught Tabata; many moderately fit 
students, she noticed, weren't getting through the 4 minutes. After the 
Scientific 7-Minute Workout landed, her vision for METabata -- a hybrid 
routine that combines metabolic resistance training and Tabata-style 
cardio bursts into a single workout -- started to gel. "The Scientific 
7-Minute Workout is a great metabolic resistance training routine, but 
it didn't include enough cardio bursts to really fan the flames of 
metabolism," she says. "Plus, it was based on applied science. It was 
never actually tested in a lab."
If
 METabata could serve as a happier Tabata -- providing a really great 
metabolic bang without pushing you so hard that you'd feel worn out the 
rest of the day -- Olson knew it would have a lot of potential. Research
 continues to show that HIIT offers extraordinary benefits: It's as 
effective as more moderate (and time-consuming) exercise when it comes 
to trimming fat and improving insulin resistance, all while delivering a
 bigger metabolic lift.
And
 when a routine is smart, people will keep it up. According to a 2012 
study published in the journal Sports Medicine, heart disease patients 
who were put on a HIIT routine were more likely to stick with it than 
patients told to do continuous cardio. "You get short breaks during 
HIIT, which may give you that extra spunk to get through the next 
interval, creating an amped-up sense of accomplishment and making the 
overall workout feel more satisfying," says Olson.
Wanting
 her METabata workout to stay near the 7-minute mark, Olson experimented
 with different moves until she found a combination she liked, requiring
 6 minutes 40 seconds of hard effort, with 10 seconds after each move to
 quickly set up for the next exercise. Then she rounded up Yelverton and
 19 other women with a mean age of 42 (the oldest was 61; the youngest, 
25). For 2 months, Olson ran them through the same protocol, gauging 
their preworkout moods and resting metabolic rates, having them do the 
workout, testing their metabolic rates for 30 more minutes, and then 
asking them about their postworkout moods.
The
 results, given that the whole workout lasts 480 seconds, are 
astounding. Her testers burned an average of 85 calories during the 
workout and another 65 in afterburn, for a total of 150. (To put that in
 perspective: You'd have to walk for half an hour to hit that number.) 
They also increased their metabolic rates by 85% for 30 minutes 
following the workout -- almost the same boost as after a Tabata 
routine. Most important, says Olson: "Our participants experienced a 
significant decrease in negative mood factors and felt a greater sense 
of total well-being."
The
 workout over, Yelverton lies down so Olson can measure her metabolic 
rate. Yelverton's legs are burning. Her heart is hammering against her 
chest. But, she says, she feels pretty good.
Inside
 her body, meanwhile, Olson's METabata workout has initiated a powerful 
chain reaction. Its intensity triggered the release of extra adrenaline,
 a sort of espresso shot for her heart, which allowed her muscles to 
demand more of the oxygen-rich blood they need to convert food energy 
into ATP (adenosine triphosphate), their cellular bonfire. Even though 
she's at rest, her body continues to use oxygen at a higher rate, and it
 will take her metabolism another few hours to return to baseline.
"Basically,"
 Olson explains, "you've turned your body into an oxygen-, fat-, and 
carb-incinerating machine, which makes up for the fact that you 
exercised for only a few minutes."
A short time later, as her breathing slowly returns to normal, Yelverton feels her mood and energy lift.
"So, what did you think?" Olson asks her.
Yelverton
 smiles and shakes her head, wiping a bit of sweat from her forehead. 
"It was tough, but it's over fast," she says. "I'd definitely do it 
again. In fact, can you write it down for me?"
  8-MINUTE CALORIE BURN AT A GLANCE  
-  Weight training: 30 calories
-  Power yoga: 34 calories
-  Walking: 37 calories
-  Swimming: 50 calories
-  Jogging: 59 calories
-  Running: 70 calories
-  Spinning: 72 calories
-  METabata: 85 calories -- plus, you'll torch another 65 in afterburn
METabato's Powerful Effect on Metabolism
Your
 metabolism spends most of its time idling at a slow burn of roughly 1.2
 calories per minute. One session of METabata spikes it by 85% and can 
keep it elevated for the next few hours. How's that for just 8 minutes 
of effort?
 Your 8-Minute METabata Workout
 What you'll need: 
 A set of hand weights -- our test panelists used 8 to 10 pounds, but 
start low and work your way up -- and a timer. We like the Seconds Pro 
app ($4.99; iTunes App Store).
 How to do it: 
 Warm up with 2 minutes of easy walking or marching in place, then do 
the METabata circuit, quickly moving from one move to the next. (It 
should take you about 10 seconds to set up for each exercise.) "Ideally,
 you should be able to get in 30 to 32 reps during each 6o-second 
resistance move and 18 to 20 reps for the 20-second cardio bursts," says
 exercise physiologist Michele Olson, PhD. "But form comes before speed.
 To get the calorie burn and benefit of this workout, you need to 
perform a complete range of motion for each exercise." If you have a few
 extra minutes, end with some easy stretching. Your muscles will be 
warm, so it's the perfect time to work on flexibility.
 1. Squat with Overhead Pass 
 Targets: legs, butt, and shoulders  
Stand
 with feet slightly more than hip-width apart, holding 1 weight in right
 hand directly in front of right shoulder, elbow bent. Lower into a 
squat, keeping knees behind toes and chest lifted, right elbow hovering a
 few inches above right knee (a). Straighten legs and extend arms 
overhead, passing dumbbell to left hand (b), and immediately lower into 
another squat, lowering weight and bringing left elbow a few inches 
above left knee (c). Continue alternating sides for 60 seconds.
 2. Tabata Burst: Squat Jack 
 Targets: legs, butt, and shoulders  
Stand
 with feet together and arms extended overhead, holding 1 weight 
horizontally with both hands (a). Jump feet out and lower into a squat, 
bending elbows and lowering weight to chest height (b). Straighten legs 
and jump feet back together, extending arms and weight overhead. 
Continue for 20 seconds.
 3. Push-Up 
 Targets: arms, shoulders, and core  
Start
 in push-up position, feet hip-width apart and hands slightly outside of
 shoulders (a). (Modify by keeping knees on floor.) Bend elbows, 
lowering body until chest nearly touches floor (b). Pause, then 
straighten arms to push body back to starting position. Continue for 60 
seconds.
 4. Tabata Burst: Row Jump 
 Targets: thighs, butt, and upper back  
Stand
 with feet together, holding 1 weight vertically at chest height, both 
hands grasping top end and elbows bent out to sides (a). Jump feet out 
and lower into a squat, straightening arms and lowering weight toward 
floor (b). Straighten legs and jump feet back together, raising weight 
to chest height, elbows bent out to sides. Continue for 20 seconds.
 5. Back Row with Leg Tap 
 Targets: butt, back, and shoulders  
Stand
 with left leg 1 to 2 feet in front of right leg, left knee slightly 
bent and right heel lifted. Lean forward slightly, keeping spine long, 
holding a weight in each hand beside left knee, with arms straight (a). 
Keeping core engaged, tap ball of right foot next to left foot, bending 
elbows straight back and pinching shoulder blades together while pulling
 weights up alongside torso (b). Tap right foot back and lower arms, 
returning to starting position. Continue for 30 seconds. Immediately 
repeat on opposite side for another 30 seconds, tapping left foot next 
to right foot.
 6. Tabata Burst: Squat Jack
 Repeat move 2 (p. 101) for 20 seconds. 
 7. Chop Lunge 
 Targets: thighs, butt, shoulders, and core  
Stand
 with right foot about 3 feet in front of left foot, holding 1 weight 
with both hands beside right inner thigh (a). Lower into a lunge, 
keeping right knee over ankle and left knee pointing straight down, 
while sweeping weight up and across body, ending with arms extended and 
weight over right shoulder (b). Straighten legs and lower weight to 
starting position. Continue for 30 seconds. Immediately repeat on 
opposite side for another 30 seconds.
 8. Tabata Burst: Row Jump
 Repeat move 4 (opposite) for 20 seconds. 
 9. Pilates Double-Leg Stretch 
 Targets: core  
Lie
 on back, hugging knees to chest, hands resting lightly on shins. Curl 
head, neck, and shoulders off floor (a). Keeping core engaged, 
straighten and lift legs about 45 degrees from floor while extending 
arms overhead next to ears (b). Pause, then pull knees back to chest 
while sweeping arms out to sides to return hands to shins. Continue for 
6o seconds.
 10. Tabata Burst: Squat Jack 
 Repeat move 2 (p. 101) for 20 seconds.  
That's it! You just burned some serious calories.
The
 20-second Tabata-style bursts in this workout incinerate belly fat. 
They can also lower triglycerides and improve blood sugar, reducing your
 risks of diabetes and heart disease.
Bone
 loss accelerates rapidly as you near and reach menopause, but the light
 hopping in this workout places vertical stress on your skeleton, which 
can improve bone density.
-----------------------------------
More sources of 
exercise equipment, if you want to know more on it!