Featured Research

from universities, journals, and other organizations

Low muscle strength in adolescence linked to increased risk of early death

Date:
November 20, 2012
Source:
BMJ-British Medical Journal
Summary:
Low muscle strength in adolescence is strongly associated with a greater risk of early death from several major causes, suggests a large study.

Low muscle strength in adolescence is strongly associated with a greater risk of early death from several major causes, suggests a large study published on the British Medical Journal website.

The effect is similar to well established risk factors for early death like being overweight or having high blood pressure, leading the authors to call for young people, particularly those with very low strength, to engage in regular physical activity to boost their muscular fitness.

High body mass index (BMI) and high blood pressure at a young age are known risk factors for premature death, but whether muscular strength in childhood or adolescence can predict mortality is unclear.

So a team of researchers, led by Professor Finn Rasmussen at the Karolinska Institutet in Sweden, tracked more than one million Swedish male adolescents aged 16 to 19 years over a period of 24 years.

Participants underwent three reliable muscular strength tests at the start of the study (knee extension strength, handgrip strength and elbow flexion strength). BMI and blood pressure were also measured. Premature death was defined as death before age 55 years.

During the follow-up period, 26,145 participants (2.3% of the group) died. Suicide was the most common cause of death (22.3%) compared with cardiovascular diseases (7.8%) or cancer (14.9%).

High muscular strength was associated with a 20-35% lower risk of early death from any cause and also from cardiovascular diseases, independently of BMI or blood pressure. No association was seen with cancer deaths.

Stronger adolescents also had a 20-30% lower risk of early death from suicide and were up to 65% less likely to have any psychiatric diagnosis, such as schizophrenia and mood disorders. These results suggest that physically weaker individuals might be more mentally vulnerable, say the authors.

In contrast, male adolescents with the lowest level of muscular strength showed the greatest all-cause mortality and also the greatest mortality in cardiovascular disease and suicide before age 55 years.

Death rates from any cause (per 100,000 person years) ranged between 122.3 and 86.9 for weakest and strongest adolescents respectively. Rates for cardiovascular diseases were 9.5 and 5.6 and for suicide were 24.6 and 16.9.

The authors say that low muscular strength in adolescents "is an emerging risk factor for major causes of death in young adulthood, such as suicide and cardiovascular diseases." The effect sizes of these associations "are similar to classic risk factors such as body mass index and blood pressure," they add.

They suggest that muscular strength tests, in particular handgrip strength, could be assessed with good reliability in almost any place, including clinical settings, schools and workplaces.

They also support the need for regular physical activity in childhood and adolescence, saying: "People at increased risk of long term mortality, because of lower muscular strength, should be encouraged to engage in exercise programmes and other forms of physical activity."


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. F. B. Ortega, K. Silventoinen, P. Tynelius, F. Rasmussen. Muscular strength in male adolescents and premature death: cohort study of one million participants. BMJ, 2012; 345 (nov20 3): e7279 DOI: 10.1136/bmj.e7279

Cite This Page:

BMJ-British Medical Journal. "Low muscle strength in adolescence linked to increased risk of early death." ScienceDaily. ScienceDaily, 20 November 2012. <www.sciencedaily.com/releases/2012/11/121120193519.htm>.
BMJ-British Medical Journal. (2012, November 20). Low muscle strength in adolescence linked to increased risk of early death. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2012/11/121120193519.htm
BMJ-British Medical Journal. "Low muscle strength in adolescence linked to increased risk of early death." ScienceDaily. www.sciencedaily.com/releases/2012/11/121120193519.htm (accessed July 25, 2014).

Share This




More Health & Medicine News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
Can Watching TV Make You Feel Like A Failure?

Can Watching TV Make You Feel Like A Failure?

Newsy (July 24, 2014) A study by German researchers claims watching TV while you're stressed out can make you feel guilty and like a failure. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

    Health News

      Environment News

        Technology News



          Save/Print:
          Share:

          Free Subscriptions


          Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

          Get Social & Mobile


          Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

          Have Feedback?


          Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
          Mobile: iPhone Android Web
          Follow: Facebook Twitter Google+
          Subscribe: RSS Feeds Email Newsletters
          Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins