31. Costly signalling can be applied to situations involving physical strain and risk of physical injury or death. 32. Further, it was not expected that this would cause an excessive psychological and physical strain on the pilot. 33. The next phase, however, is a one-day, 36-hole challenge, for which the physical strain obviously will be great. 34. "Our knees were the worst, " said Geiger, of the physical strains of biking up to 85 miles nonstop. 35. The numbing pain of self-evaluation was coupled with the physical strain of walking 20 to 30 miles a day. 36. Most injuries in the state were related to physical strain while shoveling, snow blower accidents or slips and falls. 37. The distributions were consolidated so as to reduce the physical strain of the ceremony on the Queen as she aged. 38. Many women experience the laws rigidity and their obligation to adhere to them as causing both emotional and physical strain . 39. This type of attack was extremely successful as attested to by the damage assessment reports and the lessened physical strain 40. Still, I was exhausted from the physical strain of the repeated seizures and often angry that this was happening to me.