Featured Research

from universities, journals, and other organizations

Teenagers urged to exercise to ward off bone disease

Date:
November 16, 2012
Source:
University of Exeter
Summary:
Playing soccer or running for at least three hours a week could help teenagers counteract the potential damage to their bone health caused by prolonged spells of sitting.

An international team, including an expert from the University of Exeter, has found evidence that adolescents who spend long periods engaged in certain sedentary activities are more likely to have low bone mineral content in parts of the body where it can be an indicator of the risk of developing osteoporosis.

In newly published research, the team found that studying put girls at particular risk, while for boys leisure internet use posed the greatest threat. Scientists found that participating in at least three hours of certain sports could significantly reduce the threat in girls. The study found evidence of the benefits of high-intensity sports where the participant is on their feet, such as football, basketball, netball or running.

Scientists have previously studied the impact of an inactive lifestyle on problems such as obesity or heart defects, but this is one of the first studies analysing the effects of different sedentary behaviours on bone health in the critical development period of adolescence.

Dr Luis Gracia Marco of the University of Exeter, who led the research, said: "Clearly we are not telling girls not to study. It is a fact of modern life that teenagers spend more time engaged in deskbound or sitting activities, but our research is one of the first to identify a connection between this behaviour in adolescents and low levels of bone mass in key regions of the body. It is already well-known that an inactive lifestyle has implications for young people, such as obesity and heart diseases. Combined with that, our findings emphasise the need for exercise, and we hope it will give some focus for young people and their parents to ward off any health problems later in life."

The research was carried out in collaboration with scientists from the University of Zaragoza, the University of Granada, the Spanish National Research Council (CSIC), and the University of São Paulo, Brazil. It was supported by the European community Sixth RTD Framework Program, as well as with a grant from Fundación Cuenca Villoro.

The research assessed the lifestyles of 359 Spanish adolescents participating in the Healthy Lifestyle in Europe by Nutrition in Adolescence Study. It examined bone mineral content in the femoral neck region of the hip, which is a critical area for diagnosing osteoporosis.

The research team looked at the impact of different types of sitting activity, including watching television and playing computer games. The strongest connection between deskbound behaviour and low bone mineral content was found in girls' hips, which is where most fractures occur. It was linked to study time, but regardless of how much time they spent studying, the risk was significantly reduced if they spent at least three hours each week participating in high-intensity upright sport.

Internet leisure use was found to negatively affect whole body bone mineral content in boys.

Dr Gracia Marco said: "More research is needed to establish exactly why there are differences between the two genders, and why these types of activity are particularly damaging to teenage boys and girls, but we can speculate that it is linked to how long they remain in the same position. Our findings indicate that activities such as studying, where you spend a long time sitting down without getting to your feet, could be detrimental to bone health. Although development of osteoporosis is particularly linked to adolescence, this may also have implications for other groups of people, such as office workers."


Story Source:

The above story is based on materials provided by University of Exeter. Note: Materials may be edited for content and length.


Journal Reference:

  1. Luis Gracia-Marco, Juan P Rey-López, Alba M Santaliestra-Pasías, David Jiménez-Pavón, Ligia E Díaz, Luis A Moreno, German Vicente-Rodríguez. Sedentary behaviours and its association with bone mass in adolescents: the HELENA cross-sectional study. BMC Public Health, 2012; 12 (1): 971 DOI: 10.1186/1471-2458-12-971

Cite This Page:

University of Exeter. "Teenagers urged to exercise to ward off bone disease." ScienceDaily. ScienceDaily, 16 November 2012. <www.sciencedaily.com/releases/2012/11/121116124555.htm>.
University of Exeter. (2012, November 16). Teenagers urged to exercise to ward off bone disease. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2012/11/121116124555.htm
University of Exeter. "Teenagers urged to exercise to ward off bone disease." ScienceDaily. www.sciencedaily.com/releases/2012/11/121116124555.htm (accessed July 30, 2014).

Share This




More Health & Medicine News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) — Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) — Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) — At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Generics Eat Into Pfizer's Sales

Generics Eat Into Pfizer's Sales

Reuters - Business Video Online (July 29, 2014) — Pfizer, the world's largest drug maker, cut full-year revenue forecasts because generics could cut into sales of its anti-arthritis drug, Celebrex. Fred Katayama reports. Video provided by Reuters
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