title: A comparison of 3 different rest intervals on the exercise volume completed during a workout.
abstract: The purpose of this research was to compare differences between 3 different rest intervals on the squat and bench press volume completed during a workout. Fifteen college-aged men volunteered to participate in this study (age 20.73 +/- 2.60 years; body mass 80.73 +/- 10.80 kg). All subjects performed 3 testing sessions, during which 4 sets of the squat and bench press were performed with an 8 repetition maximum (8RM) load. During each testing session, the squat and bench press were performed with a 1, 2, or 5-minute rest interval between sets. Volume was defined as the total number of repetitions completed over 4 sets for each rest condition. Statistical analysis was conducted separately for the squat and bench press. One-way repeated analyses of variance with Bonferroni post hocs demonstrated significant differences between each rest condition for both exercises tested (p < 0.05). The 5-minute rest condition resulted in the highest volume completed, followed in descending order by the 2- and 1-minute rest conditions. The ability to perform a higher volume of training with a given load may stimulate greater strength adaptations.
authors.affiliation: Department of Exercise and Wellness, Arizona State University, Mesa, Arizona 85212, USA. Jeffrey.Willardson@asu.edu
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Willardson
authors.forename: Lee N
authors.initials: LN
authors.lastname: Burkett
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology; D010807:Physical Endurance / Q000502:physiology; D012146:Rest / Q000502:physiology*; D013997:Time Factors; D014891:Weight Lifting / Q000502:physiology*