Think the Best Way to Work Is All Speed, All the Time? Not So Fast, Actually

When given a task, who hasn't set about it with great gusto and panache, hoping to get it done quickly?

Well now a new study is saying that's not the way to do it.

According to newswise.com, real productivity comes when we have an initial push, yes, but then lie back a little.

Researchers at the Chinese Academy of Sciences in Beijing (figures, right?) developed a model to gain insight into how workers’ efforts are best distributed over a single workday. The ideal profiles of effort follow one of two patterns, depending on the nature of the work:

  • A high-low-high effort pattern, they found, is the best way to manage fatigue when the rate at which the employee works can be modulated. The idea is to begin and end the day with maximum intensity, but take it easier in the middle.
  • But in some jobs, effort cannot be modulated. Workers operating a machine, or attending to customers at a retail store or restaurant, or performing mental tasks that require constant concentration must be either working 100 percent or taking a break, but they cannot work at 25 percent. In the All or None case, Baucells and Zhao showed that the best distribution of effort is for workers to begin and end the day with On periods, but take breaks during the day.
The high-low-high profile of effort mirrors what researchers saw in Olympic athlete competition, which they used to calibrate their model. In an energy-speed model they developed for athletes in a time trial competition, they were able to show why the best swimmers don’t swim their fastest (just as runners don’t run their fastest) continuously in a race; if they try, the energy buffer will be exhausted too soon, and they’ll slow down much more (yielding a longer overall time) than if they “pace themselves” throughout the race.

Now I'm a runner (not very fast, I admit) and I'm not sure this works for me.  I basically end the jog the way I started, medium speed (about an 11-minute mile).  Would this help me?  Maybe.  Maybe not.

The ideal pacing includes a strong initial start, followed by an intentional lowering of the “burn rate,” precisely calculated so that there is some energy left in the reserve for the final sprint. This pattern minimizes total time, even if each athlete competes in a solo lane, as is the case in swimming. If an athlete doesn’t learn when to transition from the high pace at the beginning to the lower pace mid-race, or the set right the mid-pace, then he or she will either run out of energy too soon or have “too much” energy for the end, which could have been more efficiently spread out during the race, the web site reports.
The workplace parallel is an employer who insists on employees keeping a high pace all the time. When this occurs, managers aren’t only fatiguing their workers, they’re also harming their own productivity and profits. This is because wage costs will in one form or another increase, be it through high turnover, absenteeism, low morale and productivity, or higher worker demands due to fatigue.
Because fatigue can be difficult to recognize until it’s extreme (and has already damaged the company), this research suggests that managers would help themselves — and their workers — by taking preemptive action against fatigue. They can do so, in part, by allowing workers the flexibility of choosing when to take breaks. Perhaps contrary to intuition, Baucells and Zhao’s model is not necessarily against long hours, as long as more breaks are allowed during work. Google seems to have learned this lesson and makes the work environment pleasant, promoting fun distractions, while at the same time encouraging long work hours.
At the other extreme, we have the short but intense schedule. Here, the model recommends maximum intensity, except for one break — or a period of low intensity — in the middle.
And for the growing sector of self-employed, a lot of self-management is needed: avoiding the temptation to push hard all day long, for instance, and disciplining themselves to take true breaks, just as they would if they were working in an office. 
At-home workers (I'm one) should draw clear home/work boundaries in their schedules (and workspaces) to better facilitate a high-low-high effort, rather than putting in long hours that wind up yielding equivalent (or lower) outputs. They may even consider starting work immediately upon rising in the morning, to take advantage of showering and breakfast as times to rest and reduce accumulated fatigue. Otherwise, these early-day activities are like “wasted” breaks, from the standpoint of work fatigue.
The bottom line is, when it comes to rest and managing fatigue, the incentives of companies and workers are perfectly aligned: Reducing fatigue increases productivity, lowers the cost of providing effort, increasing work satisfaction, lowering turnover and absenteeism, and ultimately increasing profits.

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