Effects of Betaine Supplementation on Strength and Muscle Creatine Content

Effects of Betaine Supplementation Combined or Not With Creatine Supplementation on Muscle Creatine Content and Strength

It has been suggested that betaine supplementation may improve muscle strength by increasing muscle creatine content. However, there is no data supporting this assumption. The investigators speculate that betaine supplementation could enhance intramuscular creatine content, which would result in strength improvements.

Inclusion Criteria:

• physically inactive
• non-obese

Exclusion Criteria:

• skeletal muscle disturbance
• cardiovascular disturbance
• use of dietary supplements