header.png

 

ContactOnticFitnes

 

ATS BULLETIN - 15/09/2014

 

Category: BODY COMPOSITION / HEALTH MARKERS

Application: Musculoskeletal Injuries, Rehab, Clinical Groups

 

Effect of Hypoxic Training on Inflammatory and Metabolic Risk Factors: A Crossover Study in Healthy Subjects

 

 

ATS Logo

APPLIED RESEARCH TRAINING BULLETIN

 

ATS are the global authority on Simulated Altitude Training (SAT). We offer elite trainers and coaches the resources and specific training protocols that can deliver sports specific performance outcomes. These protocols are based on real world application of the latest sports science research.

Text Box: ATS BULLETINS comprise a series of advisories generated by our relentless review of research and ongoing dialogue with globally renown leaders in sports science and elite training.
The objective of ATS Bulletins is to arm trainers & coaches with an extensive curriculum of credible Simulated Altitude Training protocols designed to enhance specific attributes that are critical to continuous improvement for a range of specific sports.
 

 
 

ATS BULLETIN 2014-09-15

 

Category             - BODY COMPOSITION / HEALTH MARKERS

Application         - Musculoskeletal Injuries, Rehab, Clinical Groups

 

Research Overview

Title

Effect of Hypoxic Training on Inflammatory and Metabolic Risk Factors: A Crossover Study in Healthy Subjects

Publish Date

January 2014

Authors

Bateer Shi, Tsuneo Wantabe et al.

Institution

Gifu University, Japan

Number / Type of Participants

14 Healthy Males; 27.4 ± 2.6 yrs; BMI 23.1 ± 1

Altitude Level

15.4% O2 / 2,500m; Temp: 22oC

 

Executive Summary

Four weeks of submaximal treadmill running in simulated altitude resulted in improvements in body composition, reduced body fat in the abdominal region, and decreased arterial stiffness. Results were accomplished with a lower power output than at sea-level. Important benefits included:

  • Significant decreases in total and abdominal body fat levels

  • A significant decrease in waist circumference measurements

  • Reduced arterial stiffness, thereby improving arterial blood flow and lowering the risk of atherosclerosis

  • Less musculoskeletal effort required during simulated altitude reduced injury risk

Overview of research programme

 

Split into 2 groups of 7; one group trained in simulated altitude, the second at sea-level for a 4-week period. Once completed, a 4 month wash-out was implemented following which both groups repeated the training protocol in the opposite environment. Participants were asked to continue with their normal diet during each training block.

Training program: 3 days / week for 4 weeks; all sessions were 50-minutes in duration

Session overview:

  • 30 min resting exposure in allocated environment (before training)

  • 5 min warm-up at an easy intensity

  • 40 min treadmill exercise at 60% VO2max (equivalent to approx. 70% HRmax)

  • 5 min cool-down at an easy intensity

  • 30 min resting exposure in allocated environment (after training)

 

Key Outcomes

 

Specific improvements following simulated altitude training were observed in both groups (combined results of altitude training blocks by both groups in counterbalanced order):

  • Decreased body fat percentage (↓ 1%) with no change in body mass. This suggests altitude training promotes fat loss, and preserves muscle mass (muscle mass data not reported).

  • Significant reductions in 2 measures of abdominal fat thickness (both ↓ 1cm); while reporting high reliability of measurement procedures.

  • Significant decrease in waist circumference (↓ 2cm)

  • Improvements in metabolic risk factors: an increase in HDL-Cholesterol levels, and a decrease in arterial stiffness measures; associated with a reduced risk of circulatory diseases

 

*N.b. results of both training groups following their 4-week simulated altitude training protocol only

 

Training Program

 

Stage

Exercise

Total Time

Interval Time

% HRmax

RPE*

Target

SA02

Submaximal Treadmill Exercise

 

 

 

 

 

Pre-acclimation

Passive exposure - rest

30.00

30.00

Rest

N/A

 

Warm Up

Low intensity walking / jogging

35.00

5.00

50%

2-3

90

Main Set

Moderate intensity treadmill exercise

75.00

40.00

70%

3-5

85

Cool Down

Low intensity walking / jogging

80.00

5.00

50%

2-3

90

Recovery

 

Passive exposure - rest

110.00

30.00

Rest

N/A

 

*During submaximal moderate intensity exercise - RPE is typically between ~3-5