Tuesday January 21, 2020

Exercise May Help You Counter Effects of Jet Lag

For the study, the team examined body clocks following exercise in 101 participants for up to five-and-a-half days

0
//
Representational image.
representational image. Pixabay

Finding it hard to cope with jet lag, shift-based work? Doing some excercise can shift the human body clock and help you adjust to the shifted schedules, suggests new research.

The study, from the Arizona State University, showed that exercise can shift the human body clock with the direction and amount of this effect depending on the time of day or night in which people exercise.

Exercising at 7 a.m. or between 1 and 4 p.m. advanced the body clock to an earlier time, and exercising between 7 and 10 p.m. delayed the body clock to a later time.

Exercising between 1 and 4 a.m. and at 10 a.m., however, had little effect on the body clock, and the phase-shifting effects of exercise did not differ based on age or gender, the researchers explained.

“Exercise has been known to cause changes to our body clock. We were able to clearly show in this study when exercise delays the body clock and when it advances it,” said lead author Shawn Youngstedt, from the varsity.

Lemon
Exercise can help you counter effects of jet lag, shift-based work. Pixabay.

“This is the first study to compare exercise’s effects on the body clock, and could open up the possibility of using exercise to help counter the negative effects of jet lag and shift work.”

The findings, published in The Journal of Physiology, suggest exercise could counter the effects of jet lag, shift work, and other disruptions to the body’s internal clock (e.g., military deployments) helping individuals adjust to shifted schedules.

Also Read- Billion-Dollar Business Goes To The Dog Walkers

For the study, the team examined body clocks following exercise in 101 participants for up to five-and-a-half days.

The baseline timing of each participant’s body clock was determined from urine samples collected every 90 minutes to measure the time of the evening rise in melatonin and the peak of melatonin several hours later. (IANS)

Next Story

Lazy Infants More Likely to Suffer From Obesity

Less active babies have higher obesity risk

0
Infant obesity
Less active infants may accumulate more fat, which in turn may put them at risk for obesity later in life. Pixabay

Parents, please take note. Researchers have revealed that less active infants may accumulate more fat, which in turn may put them at risk for obesity later in life.

For the study, published in the journal Obesity, researchers tracked the physical activity levels of 506 infants using small ankle-worn accelerometers for four days per tracking period at ages 3, 6, 9, and 12 months.

For each tracking period after 3, average physical activity increased by about four per cent, in line with infants becoming generally more mobile and active over the course of their first year.

Among infants, higher physical activity measured by the accelerometer was associated with lower central adiposity, a measure of lower-torso fat accumulation, the study said.

Infant obesity
These days, infants are spending more and more sedentary time in car seats, high chairs, strollers and it may lead to obesity. Pixabay

“This is the first study to demonstrate an association over time between higher levels of objectively measured physical activity and lower central adiposity in infancy,” said study lead author Sara Benjamin-Neelon from Johns Hopkins University in US.

The study was part of a larger study of infant growth and obesity, called the Nurture study, which covered 666 mothers and their infants from the greater Durham, North Carolina, area during 2013 to 2016.

Of this group, the research team were able to get adequate accelerometer data for 506 infants.

“Some evidence suggests that the earlier you can get infants crawling and walking, and providing them with opportunities to move freely throughout the day, the more you can help protect them against later obesity,” Benjamin-Neelon said.

The study found that among the infants in the study, an increase in recorded activity by one “standard deviation”–essentially a standard proportion of the range of the data–was associated with a small but significant decrease in central adiposity.

Also Read- Males Have Higher Risk of Suffering from Cancer: Study

The researcher noted that larger, longer-term studies will be necessary to determine the sustained effect of infant physical activity, but that preventing extended periods of inactivity for infants will almost certainly be good for them.

“These days, infants are spending more and more sedentary time in car seats, high chairs, strollers–and perhaps we haven’t thought enough about the developmental ramifications of these types of restrictive devices,” Benjamin-Neelon concluded. (IANS)