People exercised harder in the presence of an opposite-sex partner, particularly if the persons concerned were singles. https://www.sciencedirect.com/science/article/pii/S109051381630318X …pic.twitter.com/nmeFuH4QaK
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We didn't look at current fitness levels per se. Enrollment was open to any student who was interested and capable. Looking at BMI, 10.6% of participants would be classified as obese. Most (60.9%) would be classified as normal weight, 36.6% were overweight, 1.9% were underweight.
Thank you, that would seem to support my hypothesis. You've got me thinking. 
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