Ischemic pre conditioning and athletic performance
Sponsored Links
This presentation is the property of its rightful owner.
1 / 29

Ischemic Pre-Conditioning and Athletic Performance PowerPoint PPT Presentation


  • 205 Views
  • Uploaded on
  • Presentation posted in: General

Ischemic Pre-Conditioning and Athletic Performance. Hirofumi Tanaka, Ph.D. Cardiovascular Aging Research Laboratory Department of Kinesiology & Health Education The University of Texas at Austin. Athletes and Competitive Advantage. Ergogenic Aids. Oxygen Inhalation. Compression Sleeves.

Download Presentation

Ischemic Pre-Conditioning and Athletic Performance

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Ischemic Pre-Conditioning and Athletic Performance

Hirofumi Tanaka, Ph.D.

Cardiovascular Aging Research Laboratory

Department of Kinesiology & Health Education

The University of Texas at Austin


Athletes and Competitive Advantage


Ergogenic Aids

Oxygen Inhalation

Compression Sleeves

Eye Black

Nasal Strip


Ischemic Preconditioning

  • ↑ Endothelial function

  • ↑ Resistance to hypoxic injury

  • ↑ Ischemic tolerance


Olympic Marathon

270 yard

0.7 mile

Gold 2:06:32

Silver 2:07:16

Bronze 2:10:00

0.5%

2.7%


Usain Bolt in Beijing Olympics

Gold 9.69

Silver 9.89

Bronze 9.91

2.0%

2.3%


Treatment Effects and Measurement Variabilities


Different Perspective


Ischemic Preconditioning and VO2max

Young healthy well-trained subjects

De Groot et al. Eur J ApplPhysiol. 2010


Ischemic Preconditioning and VO2max

56.8±6.8

58.4±6.2

↑3%

De Groot et al. Eur J ApplPhysiol. 2010


Ischemic Preconditioning and Endurance

Young healthy trained men

RIP:

Ischemic preconditioning at rest

EIP:

Ischemic preconditioning after 5-min exercise

(larger metabolic load)

Crisafulli et al. J ApplPhysiol. 2011


Ischemic Preconditioning and VO2max

Crisafulli et al. J ApplPhysiol. 2011


Ischemic Preconditioning and 5 km Running Trial

⬆2.5%

Young healthy trained men

4 x 5-min 220 mmHg bilateral leg occlusion

22.6±2.4 min

22.0±1.9 min

Bailey et al. Med Sci Sports Exerc. 2012


Ischemic Preconditioning and VO2max

VO2max (ml/kg/min)

Bailey et al. Med Sci Sports Exerc. 2012


Ischemic Preconditioning and 100m Swimming Performance

Canadian national-level swimmers (13-27 years)

IPC, 40-45 min warm-up, time trial

⬆0.7 sec or 1%

66.28±21.08

66.98±21.28

Jean-St-Michel et al. Med Sci Sports Exerc. 2011


Michael Phelps vs. MiloradCavic in 100m Butterfly

Gold 50.58

Silver 50.59

0.02%

-

-

-

-

-

2.5%

8th 51.12


Michael Phelps-18 Olympic Gold Medals-


Wingate Anaerobic Power Test


Wingate Anaerobic Power Test

  • Peak power output

  • Average power output

  • (anaerobic capacity)

  • Fatigue Index = (Peak - End)

  • Peak


Remote IPC

Experimental Protocol

Rest

Wingate Tests

1

2

3

4

0

10

20

30

40

55

57.5

60

62.5

65

Time (min)


Wingate Anaerobic Power Test


Peak Power Output

*


Average Power Output


Fatigue Index


Conclusions

  • Ischemic preconditioning appears to be an effective ergogenic aid to enhance both anaerobic and aerobic athletic performance.

  • The effects of ischemic preconditioning on maximal aerobic fitness remain controversial.

  • The application of ischemic preconditioning to athletes is a promising area that requires more investigations.


Ischemic Preconditioning and 5km Running Trial

Bailey et al. Med Sci Sports Exerc. 2012


RIPC on Infarction Size in Mouse Hearts

Infarct size is expressed as a % of area at risk.

The black bar - mice perfused with dialysate from control subjects (n = 4).

The white bar -mice perfused with dialysate from elite swimmers (n = 9).

Jean-St-Michel et al. Med Sci Sports Exerc. 2011


Ischemic Preconditioning on Phosphagens

Pasdois et al. J Am Heart Assoc. 2012


  • Login