News Video | Policy | GPs | Hospitals | Medical | Mental Health | Welfare | Search

 


Women exercisers face health risk if not eating enough

Tuesday 10 January 2017

Women exercisers face health risk if not keeping up energy intake

Many New Zealand women who exercise recreationally could be risking their health by not eating enough to match the energy they expend, new University of Otago research suggests.

Department of Human Nutrition researchers surveyed 109 women recreational athletes and found that 49 (44 per cent) may be in a state of low energy availability (LEA) or at increased risk of becoming so over time.

Study lead author Dr Katherine Black says that when insufficient energy intake is combined with exercise, the body acts to conserve energy through a range of hormonal adaptations, which ends up harming health.

“Physical activity, sport and exercise are undoubtedly an important part of a healthy lifestyle. However, when energy expenditureduring exercise significantly exceeds energy intake this can cause problems, particularly for bone health and reproductive function,” Dr Black says.

To be eligible for the survey, women had be non-elite athletes who did at least 150 minutes of moderate intensity physical activity per week or 75 minutes of vigorous intensity physical activity, or an equivalent combination of both moderate and vigorous activities.

The research team found that for every one hour increase in exercise per week by a female exerciser there was a significant increase in the likelihood of being at risk of LEA.

There was also a significant association between the number of days off training due to injury and the risk of LEA, suggesting that injuries are linked with LEA risk.

“Given the high proportion of recreational athletes at risk of LEA, the links we have seen with injury, and previous research showing the negative long term health consequences, we believe is important to raise awareness of LEA and its potential serious health consequences.

“However, we also need to encourage New Zealand recreational exercisers to continue taking part in physical activity as the health benefits are well established. It is about finding the correct balance between physical activity, energy intake and well-being.”

The findings appear in the most recent issue of the International Journal of Sport Nutrition and Exercise Metabolism.


ends

© Scoop Media

 
 
 
 
 
Culture Headlines | Health Headlines | Education Headlines

 
Sheep: Shearing Record Smashed In Hawke’s Bay

Three shearers gathered from around New Zealand have smashed a World record by 264 sheep despite the heat, the pumiced sheep of inland Hawke’s Bay and a year’s wool weighing an average of over 3.5kg a sheep. More>>

ALSO:

Carrie Fisher: Hollywood In-Breeding & The Velocity Of Being - Binoy Kampmark

There was always going to be a good deal of thick drama around Carrie Fisher, by her own confession, a product of Hollywood in-breeding. Her parents, Debbie Reynolds and the crooner Eddie Fisher, provided ample material for the gossip columns in a marriage breakup after Eddie sped away with Elizabeth Taylor. More>>

  • Image: Tracey Nearmy / EPA
  • Gordon Campbell: On The Best Albums Of 2016

    OK, I’m not even going to try and rationalise this surrender to a ‘best of’ listicle. Still…maybe there is an argument for making some semblance of narrative order out of a year that brought us Trump, Brexit and the deaths of Prince, David Bowie, Leonard Cohen and Alan Vega, who I missed just as much as the Big Three. So without further ado….oh, but first a word from the sponsor More>>

    Emojis: World’s First Māori Emoji App Launched

    It’s here - the world’s first Māori emoji app Emotiki has landed just in time for summer roadtrips and santa stockings, with 200 Māori and Kiwi cultural icons for people to share their kiwiana moments with each other and the world. More>>

    ALSO:

    Howard Davis: Album Of The Year - Van Morrison's 'Keep Me Singing'

    2016 was a grand year for Van The Man - The Belfast Cowboy turned 71, received a knighthood, and reissued an expanded set of soul-fired live recordings from 1973 ('It's Too Late to Stop Now'). In the game for 53 years now, Morrison's albums consistently open new windows into the heart and soul of one of the most enigmatic figures in modern music. More>>

    Review: The NZSO Performs Handel's Messiah

    Max Rashbrooke: Saturday night's performance took the piece back to something like the way it would have originally been performed when premiered in 1742, with an orchestra of 20-30 players and only a few more singers. More>>

    Culture: Rare Hundertwasser Conservation Posters Found After 40 Years

    When Jan and Arnold Heine put a roll of conservation posters into storage in 1974 they had no idea that 42 years later they would be collectors items. More>>

    Get More From Scoop

     
     

    LATEST HEADLINES

     
     
     
     
    Health
    Search Scoop  
     
     
    Powered by Vodafone
    NZ independent news