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Pre-surgery aerobic and resistance exercise for rectal cancer patients.

ABSTRACT: Interventions: This study was a 16-week exercise intervention programme done prior to surgery with assessments undertaken at three time-points: (1) baseline, (2) immediately pre-surgery and (3) 8-week post-surgery follow-up. This is a 16 weeks exercise programme that commenced prior to the schedule surgery. Patients undertook an exercise programme that consisted of two supervised clinic sessions per week. Each supervised exercise session took approximately 60 minutes to complete. Sessions commenced with a 5-minute warm-up consisting of moderate level of aerobic exercise (~60% heart rate maximum (HRmax)), as well as stretching exercises of the major muscle groups: chest, shoulder, biceps, triceps, quadriceps, hamstrings and calf muscles. This was followed by a resistance-training regime that included a series of six exercises targeting the major muscles of the upper- and lower-body. Upper-limb exercises included chest press, seated row and lat pull-down. Lower-limb exercises were leg extension, leg curl and leg press. All exercises were performed through the full range of motion adhering to correct techniques. To ensure the progressive nature of the training programme, patients were encouraged to work past the repetition maximum (RM) prescribed, with resistance increased by 5 – 10% for the subsequent set/training sessions if they were able to exceed the number specified. Progression of resistance followed guidelines previously outlined by Galvao and Newton (2005). The training phases were as follows: week 1 – 2 (two sets 12 RM), week 3 – 5 (three sets of 10 RM), week 6 – 8 (three sets of 8 RM), and week 9 – 10 (four sets of 6 RM). After week 10, the training phases set in week 1 – 2 were resumed to implement a periodised exercise model. A further 20 minutes of aerobic exercise was unde Primary outcome(s): The primary objective of this feasibility study was to determine the efficacy of a supervised, pre-surgical exercise programme consisting of targeted resistance and aerobic training for rectal cancer patients scheduled to received rectal resection surgery. Specifically, we aimed to investigate the effects of a pre-surgical exercise intervention on neuromuscular strength using the one-repetition maximum chest press, leg press, seated row and leg extension exercise protocol[Baseline, pre-surgery and 8-weeks post-surgery] Study Design: Purpose: Prevention; Allocation: Non-randomised trial

DISEASE(S): Cancer-bowel-back Passage (rectum) Or Large Bowel (colon),Surgical Treatment For Rectal Cancer

PROVIDER: 2463629 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:The study has been described in the following paper: Gianni Parise, Stuart M. Phillips, Jan J. Kaczor and Mark A. Tarnopolsky (2005). Antioxidant enzyme activity is up-regulated after unilateral resistance exercise training in older adults. Free Radical Biology and Medicine, Volume 39, Issue 2, 15 July 2005, Pages 289-295 We cite the following three paragraphs from this paper: "MATERIALS AND METHODS Subjects Twelve men (71.2 ± 6.5 y) volunteered to participate in a 12 week uni-lateral leg resistance training program (Table 1). All subjects underwent a thorough screening process before being admitted into the study. Subjects were first screened by telephone, and were then subject to a medical evaluation. Consent from their family physician was required, and then all potential subjects underwent a resting electrocardiogram, and a sub-maximal graded exercise test on a bicycle ergometer witih a 12-lead ECG. Exclusion criteria included: evidence of coronary hear disease; congestive heart failure; uncontrolled hypertension; chronic obstructive pulmonary disease; diabetes mellitus; renal failure; major orthopaedic disability; and smoking. None of the subjects had ever participated in a structured exercise program. After subjects were advised of the benefits and risks of participation, subjects gave their written informed consent. The study was approved by the McMaster University and Hamilton Health Sciences Research Ethics Board and conferred to the principles of the declaration of Helsinki. Exercise Training Resistance training was performed three times weekly on non-consecutive days (Monday, Wednesday, and Friday) for 12 weeks, under strict supervision. Prior to and after each training session subjects were required to perform passive stretching. Resistance exercise for each session consisted of 3 sets of 10 repetitions for each of leg press and leg extension. Training progressed from one set of each exercise at 50% of the initial 1 repetition maximum (1RM) to 3 sets at 80% of 1RM over the training period. Training logs were kept to record the volume and intensity of each session. The 1RM was re-evaluated every 2 weeks, and the training load was adjusted accordingly. All exercises were performed on universal strength training equipment (Universal Gym Equipment, Inc., Cedar Rapids, Iowa). Muscle Biopsy A muscle biopsy was taken from the vastus lateralis muscle of both legs before as well as after the training period, 20 cm proximal to the knee joint using a modified Bergström needle (5 mm diameter) with suction modification. The biopsy specimen was dissected of fat and connective tissue and immediately frozen in liquid nitrogen. All samples were stored at -80 °C for subsequent analysis. All subjects were required to abstain from strenuous physical activity for 48 hours prior to the testing session. The non-trained leg performed an acute bout of exercise at the same relative intensity of the training leg to allow for the determination of the effect of training and the effect of acute resistance exercise." Additional Notes: 1) The samples of 8 out 12 were used in the gene expression study. 2) The 2 factors in this study are: 2.1) Leg - Left or Right 2.2) Training - Baseline: samples taken on each leg before exercise - Resistance Training: one of the legs was subject to resistance training followed by acute exercise - Acute Exercise: the other leg had only the acute exercise 3) The baseline samples will be used for right versus left leg comparison to see variance between legs for human experimentation technical issues. The samples from Resistance or Acute Exercise will be compared to corresponding baseline samples to evaluate the effect of both exercise programs on gene expression.

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Pre-surgery aerobic and resistance exercise for rectal cancer patients.

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