The phrase "heading to the gym" is correct and usable in written English. You can use it when you are describing what you plan on doing in the near future. For example, "I'm heading to the gym after work today."
Heading to the gym for a workout.
NOT long ago, working out generally meant donning stylish exercise garb and heading to the gym.
In the afternoon he will be heading to the gym for a couple of hours of lifting weights.
Thanks to all this advice, I feel pretty comfortable about heading to the gym again this weekend, and in the weeks to come.
As soon as you put your sneakers on and start heading to the gym, your mind will give up arguing with you.
Earlier this year, that meant a routine of three hours spent strengthening his shoulder, elbow and core; taking a break for lunch; then heading to the gym for two hours and sometimes throwing.
Then they headed to the gym.
With the clock approaching 7 30 p.m., he grabbed his black backpack and headed to the gym.
I head to the gym, which is six minutes from my house in South Portland, Maine.
On a cold Saturday, Mr. Cohen was headed to the gym when he saw Ms. Molochkovsky in Union Square.
Every week she headed to the gym, where she pounded the treadmill like a paratrooper, often three times a week.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union