ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

SURVEY: Cognitive Impairment II

Top 3 Nutrients to Detox the Liver and Soothe Digestion

Natural Bladder Control, Go Less and Live More

Top Vitamin and Mineral Deficiencies — Are You at Risk?

Vital Molecule Increases Cellular Energy and Improves Cognitive Function

Omega Fix for Obesity: How the Right Fats Fight Fat

How Pomegranate May Protect Against Cancer

Trimming the spare tire: Canola oil may cut belly fat

The Onion: Cancer Fighter and Food Preserver

Safely Reduce a Common Cause of Stomach Distress

 
Print Page
Email Article

Study Shows Moderate Physical Activity as Effective as Intense Exercise for Weight Loss

  [ 43 votes ]   [ Discuss This Article ]
www.ProHealth.com • September 15, 2003


Women trying to lose weight can benefit as much from a moderate physical activity as from an intense workout, according to a new study supported by the National Heart, Lung, and Blood Institute (NHLBI), part of the National Institutes of Health in Bethesda, MD.

Prior studies had focused on short-term weight loss. Data were lacking about the optimal degree and amount of physical activity for long-term weight loss.

The study -- "Effect of Exercise Dose and Intensity on Weight Loss in Overweight, Sedentary Women: A Randomized Trial" -- appears in the September 10, 2003, issue of The Journal of the American Medical Association (JAMA). [Editor’s note: the study abstract appears at the end of this article.]

The same issue of JAMA also includes an article on recreational physical activity and breast cancer risk. The study, based on data from the Women's Health Initiative's Observational Study, found that increased physical activity was associated with a reduced risk for breast cancer in postmenopausal women. Longer duration physical activity gave the most benefit but the physical activity did not need to be strenuous to reduce breast cancer risk.

The exercise dose and intensity trial involved 201 overweight but otherwise healthy women ages 21-45. All received reduced calorie meals in addition to being randomly assigned to one of four physical activity regimens, which varied by intensity and duration.

The regimens consisted of either a moderate- or vigorous-intensity physical activity performed for either a shorter (2½ to 3½ hours per week) or longer (3½ to 5 hours per week) duration. The physical activity consisted primarily of brisk walking, and the regimens used about 1,000 or 2,000 kcal per week.

Women in all four groups lost a significant amount of weight -- about 13 to 20 pounds -- and maintained their weight loss for a year. They also improved their cardiorespiratory fitness. However, the amount of weight lost or fitness improvement was not different among the four groups.

STUDY ABSTRACT:

Effect of Exercise Duration and Intensity on Weight Loss in Overweight, Sedentary Women

A Randomized Trial

John M. Jakicic, PhD; Bess H. Marcus, PhD; Kara I. Gallagher, PhD; Melissa Napolitano, PhD; Wei Lang, PhD

JAMA. 2003;290:1323-1330.

Context: A higher duration and intensity of exercise may improve long-term weight loss.

Objective: To compare the effects of different durations and intensities of exercise on 12-month weight loss and cardiorespiratory fitness.

Design, Setting, and Participants: Randomized trial conducted from January 2000 through December 2001 involving 201 sedentary women (mean [SD] age, 37.0 [5.7] years; mean [SD] body mass index, 32.6 [4.2]) in a university-based weight control program.

Intervention: Participants were randomly assigned to 1 of 4 exercise groups (vigorous intensity/high duration; moderate intensity/high duration; moderate intensity/moderate duration; or vigorous intensity/moderate duration) based on estimated energy expenditure (1000 kcal/wk vs 2000 kcal/wk) and exercise intensity (moderate vs vigorous). All women were instructed to reduce intake of energy to between 1200 and 1500 kcal/d and dietary fat to between 20% and 30% of total energy intake.

Main Outcome Measures: Body weight, cardiorespiratory fitness, and exercise participation.

Results: After exclusions, 184 of 196 randomized participants completed 12 months of treatment (94%). In intention-to-treat analysis, mean (SD) weight loss following 12 months of treatment was statistically significant (P <.001) in all exercise groups (vigorous intensity/high duration = 8.9 [7.3] kg; moderate intensity/high duration = 8.2 [7.6] kg; moderate intensity/moderate duration = 6.3 [5.6] kg; vigorous intensity/moderate duration = 7.0 [6.4] kg), with no significant difference between groups.

Mean (SD) cardiorespiratory fitness levels also increased significantly (P = .04) in all groups (vigorous intensity/high duration = 22.0% [19.9%]; moderate intensity/high duration = 14.9% [18.6%]; moderate intensity/moderate duration = 13.5% [16.9%]; vigorous intensity/moderate duration = 18.9% [16.9%]), with no difference between groups. Post hoc analysis revealed that percentage weight loss at 12 months was associated with the level of physical activity performed at 6 and 12 months.

Women reporting less than 150 min/wk had a mean (SD) weight loss of 4.7% [6.0%]; inconsistent (other) pattern of physical activity, 7.0% [6.9%]; 150 min/wk or more, 9.5% [7.9%]; and 200 min/wk or more of exercise, 13.6% [7.8%].

Conclusions: Significant weight loss and improved cardiorespiratory fitness were achieved through the combination of exercise and diet during 12 months, although no differences were found based on different exercise durations and intensities in this group of sedentary, overweight women.



Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ FibroSleep™ Ultra EPA  - Fish Oil


Article Comments



Be the first to comment on this article!

Post a Comment


 
Natural Pain Relief Supplements

Featured Products

Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength

Natural Remedies

Coenzyme Q10 - The Energy Maker Coenzyme Q10 - The Energy Maker
Safely Burn Away Body Fat Safely Burn Away Body Fat
Optimize Your Immune System Naturally: Thymic Protein A Optimize Your Immune System Naturally: Thymic Protein A
Itching to Find Dry Skin Relief? Itching to Find Dry Skin Relief?
Dreaming of a Good Night's Sleep? Dreaming of a Good Night's Sleep?

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map