Sunday, May 12, 2013

Maintaining better posture while sitting at your desk at work


Maintaining better posture while sitting at your desk at work
By AMY SCHOENFELD, the New York Times

MATT DRUDGE recently noted an anniversary of his aggregator news site with a Twitter post: “18 years of DRUDGE REPORT in February! And STILL sitting ;).”
Mr. Drudge, 46, hasn’t just been sitting for two decades. Like so many workers chained to their technology, he has been hunched over desktops, laptops, smartphones and tablets, and it’s all taken a toll on his body. He tries to limit the time he spends sitting to four or five hours a day, but sometimes he sits for up to 17 hours.
To ease his back, neck and shoulder pain, Mr. Drudge says he has learned how to adjust his posture. Whether he’s typing in the car, from the wooden folding chair in his Miami home office, or from a boardwalk bench at the beach on cloudy days, he makes sure to tilt the top of his pelvis forward, roll his shoulders back, elongate his spine and straighten his craned neck.
Mr. Drudge is one of thousands of people who have trained with Esther Gokhale, a posture guru in Silicon Valley. She believes that people suffer from pain and dysfunction because they have forgotten how to use their bodies. It’s not the act of sitting for long periods that causes us pain, she says, it’s the way we position ourselves.
Ms. Gokhale (pronounced go-CLAY) is not helping aching office workers with high-tech gadgets and medical therapies. Rather, she says she is reintroducing her clients to what she calls “primal posture” — a way of holding themselves that is shared by older babies and toddlers, and that she says was common among our ancestors before slouching became a way of life. It is also a posture that Ms. Gokhale observed during research she conducted in a dozen other countries, as well as in India, where she was raised.
For a method based not on technology but primarily on observations of people, it has beenembraced by an unlikely crowd: executives, board members and staff members at some of Silicon Valley’s biggest companies, including Google and Oracle; and heavy users of technology like Mr. Drudge.
“I need to do things that make sense and that I can see results from. Esther’s work is like that,” said Susan Wojcicki, 44, one of Google’s senior vice presidents, who has suffered from back and neck pain that she attributes to doing too much work at her desk.
Ms. Gokhale is not the first to suggest that changing posture is the key to a healthy spine. Practitioners of the Alexander Technique and the creators of the Aplomb Institute in Paris similarly help clients find more natural and comfortable ways to position themselves. Pilates and physical therapy can improve posture and bring awareness to it. A handful of companies, like Lumo BodyTech, now sell personal posture monitors, offering smartphone users constant feedback about the way they hold their bodies.
Ms. Gokhale’s methods have not been tested scientifically, though a doctor at the Palo Alto Medical Foundation is planning on conducting clinical trials by the end of the year.
But Ms. Gokhale, who was trained as a biochemist at Princeton University and studied at Stanford’s medical school, has some influence among medical professionals, particularly in Silicon Valley. Over 100 have referred patients to her, and a similar number have taken her course, she says.
FOR many office workers in the United States, sitting at a desk all day goes hand in hand with back, neck and shoulder discomfort. Stress and poor positioning can bring on aches or exacerbate injuries among workers faced with heavy computing, constant travel and long meetings. Regardless of occupation or lifestyle, backaches affect most Americans — about 8 in 10 deal with the pain at some point in their lifetimes, according to Dr. Richard Deyo, a professor of family medicine at Oregon Health and Science University.
The expenses are huge as well. By one estimate that appeared in The Journal of the American Medical Association, the national cost of treating people with back and neck pain was $86 billion in 2005. And with back pain one of the top reasons for worker disability, missed work because of these aches may cost employers close to $7 billion a year, according to one study.
For the majority of people with back pain, the aches are short-lived and relief comes with rest and time, according to Dr. Deyo. But methods to help those with chronic pain are diverse. Using a standing desk at work has become a popular way to ease discomfort. Exercise, yogaacupuncture and chiropractic have also been shown to reduce pain. Medical treatments like surgery and steroids continue to be important options, doctors say, even amid concerns that these have been overused.
Dr. Haleh Agdassi, a rehabilitation doctor with the Palo Alto Medical Foundation in California, sees back and neck pain so frequently among heavy users of computers that she calls it the “Silicon Valley syndrome.” She encourages clients to try a mix of nonsurgical strategies, but finds it frustrating that treatments for such a common problem are only modestly effective.
“There’s no magic bullet out there for back pain,” she says. “That can be overwhelming for patients. It’s an anxious, vulnerable crowd — they’re looking for solutions.”
Ms. Gokhale, 52, can relate to the anxiety of searching for an answer. She previously dealt with pain in her lower back, first as a college student practicing yoga, then as a young mother with sciatica. She eventually had surgery for a herniated disk, but it failed, she said.
When doctors suggested she try a second time, Ms. Gokhale began a search for other answers. Many of her own clients come to her similarly exasperated, she said.
Mr. Drudge read Ms. Gokhale’s book, “8 Steps to a Pain-Free Back,” before training with her in person. “I needed her touch, her observations and her humanity,” he said.
Donna Dubinsky, co-founder and former chief executive of Palm, worked with Ms. Gokhale two years ago after trying chiropractic, cortisone shots and physical therapy to minimize the pain of herniated disks in her back.
“All of these other things were about symptom relief. The question for me became: what could I do to address the root cause?” said Ms. Dubinsky, 57, who now stands during many meetings to practice Ms. Gokhale’s posture lessons. “Not that it’s a miracle cure, but of all the things I’ve tried, what Esther taught me was the most effective,” she added.
IN Ms. Gokhale’s courses, offered in her Palo Alto, Calif., studio and in cities across the country, students relearn how to sit, stand, sleep and walk. While some clients take private classes, many enroll in group workshops with eight to 10 people who meet for six 90-minute sessions. While the students are often strangers, the classes are casual and intimate: most clients wear yoga clothes or sweat pants, and they giggle awkwardly as Ms. Gokhale adjusts their bodies.
Ms. Gokhale says that most Americans tend to be relaxed and slumped (think of a C-shaped spine), or arched up and tense (an S shape), the stand-up-straight style of posture that some parents demand of their children. She helps her students return their bodies to the stance that she says nature intended: upright and relaxed (a tall J spine).
With the care of a kindergarten teacher, Ms. Gokhale adjusts clients’ bodies from bottom to top. She helps clients relax the front of the pelvis downward, so the belt line slants forward and the butt angles back, so “your behind is behind you, not under you” (a contrast to the neutral pelvis recommended in Pilates and some physical therapy).
Ms. Gokhale guides students’ rib cages that sway too far back, so they are flush with the stomach. She takes their hunched shoulders, rolls them up and brings them gently back and down. And she helps students release tension in their necks by re-centering their heads over their spines and pulling upward slightly at the hairline on the neck. The result is an elongated and well-stacked spine that many students say they can maintain comfortably because their muscles are not strained.
Ray Bingham, 67, the presiding director of Oracle’s board, was referred to Ms. Gokhale last fall for his lower back pain. Mr. Bingham says he has found relief after using her methods and he diligently practices his newfound ways of sitting, walking and standing. “This is not an approach like physical therapy with a beginning and an end; this is a new way of being from now on,” Mr. Bingham said.

Ms. Gokhale encourages people to take the class with co-workers and family members, so that students can help remind each other to adjust their bodies. But even those who work alone find ways to remember their posture.
After doing a group workshop with Ms. Gokhale this year, Mr. Drudge says many things now remind him to make adjustments — seeing others with poor posture at Starbucks or the gym, passing by his reflection in a window, or sitting down in a chair to work.
“But I don’t beat myself up about it. When I’m aware of my posture, I fix it,” Mr. Drudge said. “And eventually, I think, it becomes who you are.”
A version of this article appeared in print on May 12, 2013, on page BU3 of the New York edition with the headline: The Posture Guru of Silicon Valley.

Read more here >>>

Saturday, May 11, 2013

Canon PowerShot SX280 HS



PROS
Sharp lens. 20x zoom range. Speedy performer. GPS. Wi-Fi. 1080p60 video capture
CONS
Narrow aperture. Smudged details at high ISOs. Not the sharpest LCD.

The Canon PowerShot SX280 HS puts 20x zoom in your pocket, along with Wi-Fi, GPS, and 1080p60 video capture. It's an ideal travel camera, and earns our Editors' Choice award.

The Canon PowerShot SX280 HS ($329.99 direct)  is a pocket-size camera with a long 20x zoom lens. It packs a wealth of features into its svelte frame, including Wi-Fi and GPS. Images from the 12-megapixel CMOS sensor are sharp, although some details are smudged away at very high ISO settings. The camera doesn't have a fast lens like higher-end compacts with shorter zoom ratios, and while it's a bit on the pricey side, it isn't out of line with the competition. The SX280's combination of zoom, image quality, and extra features make for an attractive package, one that is good enough to oust the older, more expensive Sony Cyber-shot HX30V as our Editors' Choice compact superzoom.

Design and Features
It's not the smallest point-and-shoot that we've seen come through our testing lab, but the SX280 HS, available in red or black, squeezes an impressive 20x zoom lens into its frame. It measures 2.5 by 4.2 by 1.3 inches (HWD) and weighs about 8.2 ounces. It's smaller than theSamsung WB800F$267.99 at BuyDig.com (2.6 by 4.2 by 1.5 inches, 8.3 ounces), but the Samsung packs a slightly more ambitious 21x zoom lens that's about a half-stop brighter and a teeny bit wider. The SX280's lens covers a 25-500mm (35mm equivalent) field of view with an aperture that starts at f/3.5 and narrows to f/6.8 when zoomed all the way in.

Controls are good for a point-and-shoot. The Power button, zoom rocker, and shutter release are on the top plate, just where you expect them to be. On the rear you'll find the mode dial and a spinning control ring. The ring doubles as a four-way controller, with button presses that give you access to exposure compensation, flash control, the self-timer, and macro focusing. Other shooting controls are accessed via the Function/Set button, located in the center of the control ring. This brings up an overlay menu from which you can enable the GPS, adjust the metering pattern, change the white balance, set the ISO, enable continuous drive shooting, adjust the flash power, and control image quality and color options.

The rear display is a big 3 inches, and with a 460k-dot resolution, it's fairly sharp. But it's no match for the huge 4.8-inch, 920k-dot display on the Android-powered, connected Samsung Galaxy Camera$420.23 at Amazon. The SX280 also integrates Wi-Fi so you can transfer images to you smartphone, post directly to the Web when connected to a hotspot, transfer photos to your PC or another Canon camera, and print wirelessly to a compatible printer. Setup isn't quite as easy as with the Galaxy Camera; if you want to share photos via Facebook and Twitter directly from the camera, you'll first need to connect the SX280 to your computer via USB in order to set up Canon Image Gateway and transfer your login information to the camera. It's a painless step, but still an extra one.
A built-in GPS adds geographic coordinates to your photos. When this feature is enabled you'll be able to view the location from which you shot each photo in a map when using Picasa, Lightroom, and other image-editing applications. The GPS did take about 40 seconds to lock onto a signal the first time it was enabled, but reacquisition was much speedier. It does put a drain on the camera's battery, so it's best to turn the feature off when you're not using it.

Performance and Conclusions
The SX280 HS is fast. It starts and shoots in 1.6 seconds, focuses quickly for a 0.1-second shutter lag, and can shoot continuously at 3 frames per second. This is in stark contrast to the 21x Galaxy Camera, which is slowed by its Android operating system. It requires 2.9 seconds to wake from standby and take a photo and its shutter lag is 0.4-second. The Galaxy does shoot a bit faster in drive mode, 3.8 frames per second, but is limited to a 20-shot burst at that rate; the SX280 HS can go as long as you'd like without slowing down.
I use Imatest to check the image sharpness. We consider an image to be sharp if it scores better than 1,800 lines per picture height using a center-weighted metric on our SFR Plus test chart. The SX280 managed 1,957 lines, which is an impressive score. Samsung's similar 21x WB800F is also no slouch in this department; it scored 1,992 lines on the same test. The scores are close enough to call it a draw between the two superzooms.
Imatest also checks for noise, which is another important component in image quality. As you increase sensitivity to light, measured in ISO, noise is introduced. At its best it makes images appear a bit grainy, at its worst it wipes away image information and kills fine detail. Imatest tells us that the SX280 HS keeps noise below 1.5 percent through ISO 1600, which is impressive for a compact. The Samsung WB800F does better, keeping noise under control through ISO 3200.
But the simple score doesn't tell the whole story. We take a close look at test shots at every ISO setting on a calibrated NEC MultiSync PA271W display, checking the parts of our test scene nearest to our color test chart for signs of noise reduction. The SX280 shows some evidence of smudging at ISO 1600, but less than the WB800F. Noise is visible on the test squares is in a tight pattern, where the WB800F is a bit bigger and blockier. Either camera will do fine for online sharing at these settings, but if you want to print an image or crop heavily, you'll get better results from the SX280. Neither does as well as our Editors' Choice compact digital camera, the 10x zooming Canon PowerShot Elph 330 HS Its images at ISO 1600 are as good as the SX280 is at ISO 800. It's worth considering if you don't require the ambitious zoom ratio of the SX280, as it also packs Wi-Fi—but not GPS.
We've criticized Canon point-and-shoots in the past for lackluster video options; the imaging processor that Canon used in the previous version of this camera, the PowerShot SX260 HS limited capture to 1080p24. The SX280 steps up the game, giving you the option to record MP4 footage in 1080p60, 1080p30, 720p30, 480p30, or 240p240 quality. The last one isn't a typo—it's an ultra-fast capture mode that slows down footage to a 30fps file, resulting in very, very slow motion. The 1080p60 footage is extremely smooth, to the point where it's almost hyper-realistic; the 1080p30 looks more like traditional video, and is also sharp with accurate colors. The camera is quick to focus during recording, and if you're not recording in slow motion you can adjust the focal length without stopping your video. The sound of the lens is audible, though, so keep that in mind when zooming. There's a standard mini HDMI port to connect to an HDTV, as well as a mini USB port for PC connectivity. SD, SDHC, and SDXC memory cards are supported, and a dedicated battery charger is included.
The Canon PowerShot SX280 HS is one of the best compact superzooms that we've seen recently, thus it earns it our Editors' Choice award. Its image quality is a bit better than the similar Samsung WB800F at high ISO settings, and it packs a bunch of features including Wi-Fi, GPS, and 1080p60 video capture. The 20x zoom lens is sharp, and the camera is speedy in every regard. It's not perfect; images aren't quite as good as those from our Editors' Choice compact, the 10x-zooming Canon PowerShot Elph 330 HS, and it doesn't have always-on 4G connectivity like the Samsung Galaxy Camera. But if you're looking for a pocket-size superzoom that takes great pictures, and comes with travel-friendly Wi-Fi and GPS, the SX280 HS should be at the top of your list.
More info  here >>>