For Central Cross Country’s Jennie Bender, summer is for both building strength and taking time out for unstructured workouts.
The winner of the classic race at last year’s Birkie tries to balance the exact focus of specific strength training with free form over distance. By losing track of time on a long run or canoe paddle, she gets inspired to challenge herself with a grueling intensity session.
Her go-to intervals, usually done on classic skis, are broken into three sets of six to eight uphill repeats of 30 to 60 seconds each. For each set, she works on double poling, single stick, double pole kick or striding.

For the University of Vermont alum, the best part about these intervals is being able to shift the focus of a particular session by tweaking certain aspects of the same basic workout. For more strength, she finds a steeper hill.
To focus on technique, she slows it down and concentrates on proper form. For higher intensity, she’ll increase the interval length or speed.
Bender will do this workout or a double pole-only one just like it at least once a week.
“Specific strength is one of those workouts where I always finish feeling like I just became a better athlete,” she said.
