WASHINGTON (AP) -- The U.S. economy sank at a 5.7 percent pace in the first quarter as the brute force of the recession carried over into this year. However, many analysts believe activity isn't shrinking nearly as much now as the downturn flashes signs of letting up.

The Commerce Department's updated reading on gross domestic product, released Friday, showed the economy's contraction from January to March was slightly less deep than the 6.1 percent annualized decline first estimated last month. But the new reading was a tad worse than the 5.5 percent annualized drop economists were forecasting.

It was a grim first-quarter performance despite the small upgrade. It marked the second straight quarter where the economy took a huge tumble. At the end of last year, the economy shrank at a staggering 6.3 percent pace, the most in a quarter-century.

The economy's performance over the last two quarters underscored the grim toll the recession, which started in December 2007 and is now the longest since World War II, has had on the country. Businesses have ratcheted back spending and slashed 5.7 million jobs to survive the fallout. Financial firms have taken huge losses on soured mortgage investments. Banks and other companies have been forced out of business. Home foreclosures have soared.

Weakness in the first quarter mostly reflected massive cuts in spending by businesses on home building, equipment and software and many other things. U.S. exports plunged, so did spending on commercial construction and inventories. But some of those drops -- while huge -- were a bit less than first estimated, contributing to the tiny upgrade in overall first quarter GDP.

All of those reductions -- as well cutbacks in government spending -- more than swamped a rebound in consumer spending. However, consumers weren't nearly as energetic as the government first estimated. They boosted spending at a 1.5 percent pace, according to the revised figures. That was less than the 2.2 percent growth rate estimated a month ago.

The government makes three estimates of the economy's performance for any given quarter. Each estimate of gross domestic product is based on more complete information. The third one will be released in late June. GDP, which measures the value of all goods and services produced in the United States, is the best gauge of the nation's economic health.

Economists are hopeful that the economy isn't shrinking nearly as much in the April-to-June quarter as the recession eases its grip. Forecasters at the National Association for Business Economics, or NABE, predict the economy will contract at a 1.8 percent pace.

Other analysts think the economic decline could be steeper -- around a 3 percent pace. Some think it could be less -- about a 1 percent pace.

Less dramatic cuts by businesses factor into the expected improvement. Consumers, however, are likely to be cautious. There's been encouraging signs recently with gains in orders for big-ticket manufactured goods, some firming in home sales and a slowing in the pace of layoffs.

Federal Reserve Chairman Ben Bernanke and NABE forecasters say the recession will end later this year, barring any fresh shocks to the economy. NABE forecasters predict the economy could start growing again in the third or fourth quarter.

President Barack Obama's stimulus package of increased government spending and tax cuts, along with aggressive action by the Fed to spur lending, should help revive the economy.

Still, both the Fed and private economists caution that any recovery will be lethargic and that unemployment -- now at 8.9 percent, the highest in 25 years -- will continue to march upward in the months ahead.

Many economists say the jobless rate will hit 10 percent by the end of this year. Some say it could rise as high as 10.7 percent in the second quarter of next year before making a slow descent.

One of the forces that plunged the country into a recession was the financial crisis that struck with force last fall and was the worst since the 1930s. Economists say recoveries after financial crises tend to be slower.

In the first quarter, businesses slashed spending on home building by 38.7 percent on an annualized basis. That was slightly deeper than initially thought and was the biggest cut since the first quarter of 1980.

Spending by businesses on "nonresidential" investment, including commercial construction and equipment and software fell at an annualized rate of 36.9 percent in the first quarter. That was a bit less than the 37.9 percent annualized cut first estimated but still marked the biggest decrease on records going back to 1947.

Businesses also cut spending on inventories but not as much as the government initially thought. That shaved 2.34 percentage points off GDP, versus 2.79 percentage points first estimated. With inventories so lean, economists are hopeful that factories will have to bump up production so that businesses can replenish them. If so, that would aid economic activity.

Exports of goods and services dropped at an annualized rate of 28.7 percent in the first quarter. That was a huge drop but was a little less steep than the 30 percent annualized decline first estimated. Overseas demand for U.S. exports has been crimped as economic troubles in other countries force foreign buyers to cut back.

Cutbacks in auto production, meanwhile, shaved 1.36 percentage points off first-quarter GDP, underscoring the troubles of this struggling industry.