Fig. 1

Examples of participants completing the challenges examined in the present study. Note. A depicts the A4 Waist challenge, in which challenge success is determined by a participant’s waist being completely obscured behind a standard-size A4 sheet of paper. B depicts the Coin challenge, a participant aims to fit as many coins as possible in their collarbone, challenge success is determined by a higher number of coins. C depicts a participant completing the Spider leg challenge, adopting the pose that displays their legs to resemble a spider. Here, challenge success is determined by the ability to touch one’s elbows to the ground