=+5.10 ● Peak heart rate (beats per minute) was determined both during a shuttle run and during a 300-yard run for a sample of n 5 10 individuals with Down syndrome

(“Heart Rate Responses to Two Field Exercise Tests by Adolescents and Young Adults with Down Syndrome,”

Adapted Physical Activity Quarterly [1995]: 43–51), resulting in the following data:

Shuttle 168 168 188 172 184 176 192 300-yd 184 192 200 192 188 180 182 Shuttle 172 188 180 300-yd 188 196 196