Pumping Iron for Metabolic Health


Endurance training improves metabolic health by promoting the development of new blood vessels. Resistance training builds muscle, and a study recently published in the journal Medicine & Science in Sports & Exercise suggests the effort can also leads to small vascular adaptations.

Researchers assigned 36 males in their early 20s to a 12-week resistance training program. Some received protein supplements while others got a placebo. Weight training increased muscle fibers, with greater gains seen in the protein supplementing group.

After the second week of training, the capillary to muscle fiber ratio increased significantly, suggesting blood vessel development took place along with muscle growth.

 

Males Vs Females for Muscle Endurance



A physically fit man is typically stronger than women of the same level fitness, but women have the upper hand when it comes to muscle endurance. Consider the findings of a study from the University of British Columbia conducted in collaboration with the University of Guelph and University of Oregon. 

Researchers had 8 men and 9 women matched for their levels of fitness flex their foot against an array of sensors 200 times as fast as they could. The speed, power and torque of their movements were recorded along with fatigue. Male subjects were faster and more powerful, but also fatigued more quickly than female subjects.