• Home
  • Politics
  • Health
  • World
  • Business
  • Finance
  • Tech
  • More
    • Sports
    • Entertainment
    • Lifestyle
What's Hot

EXCLUSIVE: ‘The Man She Is Today’: European Companies Accused Of ‘Importing’ Woke Ideology

May 29, 2025

‘The Economy Is On Fire!’: Kevin O’Leary Drops Fact Check On CNN Panelists Railing Against Trump’s Economy

May 29, 2025

DeSantis Signs Bill Making Gold And Silver Legal Tender

May 28, 2025
Facebook Twitter Instagram
  • Contact
  • Privacy Policy
  • Terms & Conditions
Saturday, May 31
Patriot Now NewsPatriot Now News
  • Home
  • Politics

    Security video shows brazen sexual assault of California woman by homeless man

    October 24, 2023

    Woman makes disturbing discovery after her boyfriend chases away home intruder who stabbed him

    October 24, 2023

    Poll finds Americans overwhelmingly support Israel’s war on Hamas, but younger Americans defend Hamas

    October 24, 2023

    Off-duty pilot charged with 83 counts of attempted murder after allegedly trying to shut off engines midflight on Alaska Airlines

    October 23, 2023

    Leaked audio of Shelia Jackson Lee abusively cursing staffer

    October 22, 2023
  • Health

    Disparities In Cataract Care Are A Sorry Sight

    October 16, 2023

    Vaccine Stocks—Including Pfizer, Moderna, BioNTech And Novavax—Slide Amid Plummeting Demand

    October 16, 2023

    Long-term steroid use should be a last resort

    October 16, 2023

    Rite Aid Files For Bankruptcy With More ‘Underperforming Stores’ To Close

    October 16, 2023

    Who’s Still Dying From Complications Related To Covid-19?

    October 16, 2023
  • World

    New York Democrat Dan Goldman Accuses ‘Conservatives in the South’ of Holding Rallies with ‘Swastikas’

    October 13, 2023

    IDF Ret. Major General Describes Rushing to Save Son, Granddaughter During Hamas Invasion

    October 13, 2023

    Black Lives Matter Group Deletes Tweet Showing Support for Hamas 

    October 13, 2023

    AOC Denounces NYC Rally Cheering Hamas Terrorism: ‘Unacceptable’

    October 13, 2023

    L.A. Prosecutors Call Out Soros-Backed Gascón for Silence on Israel

    October 13, 2023
  • Business

    EXCLUSIVE: ‘The Man She Is Today’: European Companies Accused Of ‘Importing’ Woke Ideology

    May 29, 2025

    ‘The Economy Is On Fire!’: Kevin O’Leary Drops Fact Check On CNN Panelists Railing Against Trump’s Economy

    May 29, 2025

    DeSantis Signs Bill Making Gold And Silver Legal Tender

    May 28, 2025

    John Deere Announces $20 Billion Plan To Build Up American Manufacturing

    May 28, 2025

    EV Startup Promised To Cut China Ties — Then Reportedly Shared US Data Anyway

    May 27, 2025
  • Finance

    Ending China’s De Minimis Exception Brings 3 Benefits for Americans

    April 17, 2025

    The Trump Tariff Shock Should Push Indonesia to Reform Its Economy

    April 17, 2025

    Tariff Talks an Opportunity to Reinvigorate the Japan-US Alliance

    April 17, 2025

    How China’s Companies Are Responding to the US Trade War

    April 16, 2025

    The US Flip-flop Over H20 Chip Restrictions 

    April 16, 2025
  • Tech

    Cruz Confronts Zuckerberg on Pointless Warning for Child Porn Searches

    February 2, 2024

    FTX Abandons Plans to Relaunch Crypto Exchange, Commits to Full Repayment of Customers and Creditors

    February 2, 2024

    Elon Musk Proposes Tesla Reincorporates in Texas After Delaware Judge Voids Pay Package

    February 2, 2024

    Tesla’s Elon Musk Tops Disney’s Bob Iger as Most Overrated Chief Executive

    February 2, 2024

    Mark Zuckerberg’s Wealth Grew $84 Billion in 2023 as Pedophiles Target Children on Facebook, Instagram

    February 2, 2024
  • More
    • Sports
    • Entertainment
    • Lifestyle
Patriot Now NewsPatriot Now News
Home»Health»Exercise can preserve astronauts’ heart health on long space flights
Health

Exercise can preserve astronauts’ heart health on long space flights

October 2, 2023No Comments3 Mins Read
Facebook Twitter Pinterest LinkedIn Tumblr Email
Exercise can preserve astronauts' heart health on long space flights
Share
Facebook Twitter LinkedIn Pinterest Email

Extensive exercise regimens are keeping astronauts healthy and protecting their hearts during extended space missions, new research finds.

A study from scientists at UT Southwestern Medical Center in Dallas found no loss of heart mass or output, and no loss of function in the heart’s ventricles, during flights that can last up to six months.

The findings could have implications for treating diseases in which gravity plays a role. They also could help in planning longer missions, such as to Mars.

“Our study shows that, remarkably, what we are doing in space to preserve heart function and morphology is pretty effective,” said senior study author Dr. Benjamin Levine. He is a professor of internal medicine in the division of cardiology at UT Southwestern.

It has been known that when astronauts return to Earth, they typically experience a dramatic loss in blood pressure. A key cause is remodeling that the heart experiences because of space’s microgravity conditions.

While in space, astronauts’ bodies don’t have to counteract the effects of gravity. That means their bodies are working less hard. It’s similar to what someone would experience while on bed rest, the researchers explained.

The heart muscle mass decreases by an average of 1% per week while in space and the volume of blood that the heart holds also drops.

It was not known whether the two hours of exercise the astronauts on the International Space Station (ISS) do daily could counteract this extended time in zero gravity. The astronaut exercise programs included both strength training and aerobic activity.

See also  Higher Long Covid Risk Linked To Living In Poor Areas And These Two Occupations

So, the researchers studied this in data in 13 astronauts who had missions on the space station between 2009 and 2013. Missions lasted an average of 155 days.

Data included measurements of blood pressure, the amount of blood pumped per beat and blood flow per minute before, during and after each astronaut’s mission.

Cardiac MRI scans were used to assess heart anatomy about two months before spaceflight and then again three days after the astronauts’ return to Earth. They were scanned again three weeks later.

The researchers found that astronauts’ blood pressure decreased significantly during spaceflight compared to on Earth. Their heart performed about 12% less work.

But both left and right ventricles showed no decrease in muscle mass, and the amount of blood pumped out of the heart stayed the same.

“There’s nothing magical about space and microgravity. The heart is quite plastic and responds to changes in physical activity,” Levine said in a medical center news release. “It’s reassuring that the training astronauts are doing in space can protect their hearts from the risks inherent to spaceflight, even on extended missions.”

Previously published work had shown a dilation of the atria in these same astronauts, Levine said. This meant they could be at risk for atrial fibrillation (an irregular heartbeat) during longer duration missions, so his team is now studying this.

This study was published in the Journal of the American College of Cardiology.

More information:
Shigeki Shibata et al, Cardiac Effects of Long-Duration Space Flight, Journal of the American College of Cardiology (2023). DOI: 10.1016/j.jacc.2023.05.058

See also  The Surprising Environmental And Health Benefits of Woodworking

Copyright © 2023 HealthDay. All rights reserved.

Citation:
Exercise can preserve astronauts’ heart health on long space flights (2023, October 2)
retrieved 2 October 2023
from https://medicalxpress.com/news/2023-10-astronauts-heart-health-space-flights.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

Astronauts exercise Flights health heart Long preserve Space
Share. Facebook Twitter Pinterest LinkedIn Tumblr Email

Related Posts

Limestone Or Sandstone? Creating A Calming Outdoor Space For Your Wellbeing 

May 3, 2025

Understanding The Emotional And Physical Impact Of Elder Abuse On Senior Health

April 17, 2025

The Ancient Practice Helping Modern Women Reclaim Pelvic Health

April 17, 2025

The Surprising Mental Health Tool You Probably Haven’t Tried

April 14, 2025
Add A Comment

Leave A Reply Cancel Reply

Top Posts

‘Wait Them Out’: John Kennedy Tells Larry Kudlow One Lie He Suspects China’s Telling US

May 7, 2025

‘Embarrassed’: Ex-GOP Governor Slams Candidates Over Trump Support

August 25, 2023

India-Middle East-Europe Economic Corridor to Be Unveiled at G20

September 11, 2023

Bath & Body Works Apologizes For Offending Customers With Allegedly KKK-Resembling Candle

October 12, 2024
Don't Miss

EXCLUSIVE: ‘The Man She Is Today’: European Companies Accused Of ‘Importing’ Woke Ideology

Business May 29, 2025

Consumers’ Research issued a “Woke Alert” on Thursday warning American shoppers that three European companies…

‘The Economy Is On Fire!’: Kevin O’Leary Drops Fact Check On CNN Panelists Railing Against Trump’s Economy

May 29, 2025

DeSantis Signs Bill Making Gold And Silver Legal Tender

May 28, 2025

John Deere Announces $20 Billion Plan To Build Up American Manufacturing

May 28, 2025
About
About

This is your World, Tech, Health, Entertainment and Sports website. We provide the latest breaking news straight from the News industry.

We're social. Connect with us:

Facebook Twitter Instagram Pinterest
Categories
  • Business (4,136)
  • Entertainment (4,220)
  • Finance (3,202)
  • Health (1,938)
  • Lifestyle (1,645)
  • Politics (3,084)
  • Sports (4,036)
  • Tech (2,006)
  • Uncategorized (4)
  • World (3,944)
Our Picks

W.H.O. Chief Tedros (Again) Pleads with China for ‘Full Access’ to Determine Coronavirus Origins

September 19, 2023

Jays Announcers Suspicious of Aaron Judge Before Home Run Hit

May 18, 2023

Are German Drug Pricing Regulations Chasing Some Drug Makers Away, Causing Them To Withdraw Products From The Market?

April 6, 2023
Popular Posts

EXCLUSIVE: ‘The Man She Is Today’: European Companies Accused Of ‘Importing’ Woke Ideology

May 29, 2025

‘The Economy Is On Fire!’: Kevin O’Leary Drops Fact Check On CNN Panelists Railing Against Trump’s Economy

May 29, 2025

DeSantis Signs Bill Making Gold And Silver Legal Tender

May 28, 2025
© 2025 Patriotnownews.com - All rights reserved.
  • Contact
  • Privacy Policy
  • Terms & Conditions

Type above and press Enter to search. Press Esc to cancel.