title: Effects of Rest Interval on Strength Recovery in Breast Cancer Survivors.
abstract: The purpose of this study was to compare the acute effect of 2 different resting intervals (RI) between sets of isokinetic knee extension exercise on peak torque (PT) and total work (TW) in breast cancer survivors (BCS) and control group (CNT). 16 BCS (52±4 years) and 14 CNT (53±6 years) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°.s(- 1) on 2 separate days with 2 different RI between sets (1 and 2 min). There was a significant interaction between groups vs. exercise sets (p=0.03) and RI vs. exercise sets (p<0.001) for PT. PT was greater in CNT at 1(st) and 2(nd) sets compared to BCS group (CNT, 133.4±20.8 and BCS 107.6±19.9 Nm, p=0.012 and CNT, 118.9±19.6 and BCS, 97.1±15.9  Nm, p=0.045, respectively). The TW of the knee extensor was significant greater in CNT than BCS group for all 3 knee extension exercise sets. In conclusion, the present study suggests that Breast Cancer Survivors women may need a longer rest interval (longer than 2 min) to be able to fully recover during a 3 sets of isokinetic knee extension exercise training session.
authors.affiliation: College of Physical Education, Federal University of Goias, Goiania, Brazil.
authors.forename: C A
authors.initials: CA
authors.lastname: Vieira
authors.affiliation: Department of Exercise and Sport Science and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, United States.
authors.forename: C L
authors.initials: CL
authors.lastname: Battaglini
authors.affiliation: College of Physical Education, University of Brasilia, Brasilia, Brazil.
authors.forename: J B
authors.initials: JB
authors.lastname: Ferreira-Junior
authors.affiliation: Medical College Federal University of Brasilia, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Vieira
authors.affiliation: College of Physical Education, University of Brasilia, Brasilia, Brazil.
authors.forename: M F
authors.initials: MF
authors.lastname: Brito Vogt
authors.affiliation: Medical College, Federal University of Goias, Goiania, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Freitas-Junior
authors.affiliation: College of Physical Education, University of Brasilia, Brasilia, Brazil.
authors.forename: R J
authors.initials: RJ
authors.lastname: Oliveira
authors.affiliation: College of Physical Education, University of Brasilia, Brasilia, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Bottaro
mesh_terms: D001943:Breast Neoplasms / Q000534:rehabilitation*; D016022:Case-Control Studies; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D008875:Middle Aged; D053580:Muscle Strength / Q000502:physiology; D055070:Resistance Training; D012146:Rest / Q000502:physiology*; D017741:Survivors; D013997:Time Factors; D019415:Torque