bigmacbear: Me in a leather jacket and Hockey Night in Canada ball cap, on a ferry with Puget Sound in background (Default)
bigmacbear ([personal profile] bigmacbear) wrote2005-06-23 08:33 am

Working out

Somewhat belatedly, I've begun working out a bit at the fitness center at my office.
They have this model of exercise bike there that can be programmed for "random hills" and such, and keeps track of the time, distance, RPM, and heart rate as you go. After 20 minutes on that thing I really feel I've had a decent workout.
I've also tried out this cool machine called a Gravitron, which is designed to allow folks like me who haven't the strength to lift their full body weight off the ground the opportunity to do exercises such as dips and pull-ups. You punch your weight into the machine and then select a difficulty level; the machine then balances some percentage of your weight with a hydraulic cylinder.
I'm reminded of when I was in college and used to hit the gym between classes. Then as now I notice a big difference in my whole outlook on things from the usual state of minimal exercise I've been in most of my life.
I'm not sure why physical activity is so good at dispelling mental stress; perhaps it rewards the instinct to fight when threatened. Unfortunately it also means I'm feeling a little sore physically in places where I may have overdone it.

[identity profile] detailbear.livejournal.com 2005-06-23 08:55 pm (UTC)(link)
Increased circulation. Increase in liver and kidney activity, clearing out the bloodstream. Rebalancing of hormones and brain chemicals. Increased sensitivity to insulin. Increase in interferon production. Increased blood cell creation. Increase in immune response. All of the above reverse the results of the aborted fight-or-flight responses caused by stress.

Then there's the endorphins.