An Oakland Raiders tight end chose a workout that consisted of 6 sets of 225 pound bench presses. He managed 51 reps in his first workout.
After 3 weeks of cooling between sets, his number of repetitions in a workout increased to 60 (a 17.6% improvement).
During a 4-week control period without cooling, he maintained his progress but did not improve significantly. This control period was followed by another 2-week period with cooling between sets, during which his reps per workout increased to 67 (an overall improvement of 31.4%).
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