The authors studied the effects of antioxidant diet supplementation with an almond-based beverage on neutrophil antioxidants, nitrite, and protein oxidative alterations after exercise. Fourteen trained male amateur runners were randomly assigned in a double-blind fashion to receive antioxidant supplementation (152 mg/d vitamin C and 50 mg/d vitamin E) or placebo using an almond-based beverage for 1 mo and participated in a half-marathon race. Blood samples were taken before and after the half-marathon and after 3 hr recovery. Supplementation significantly increased basal neutrophil vitamin C compared with placebo (p < .05). Exercise increased neutrophil vitamin E levels in the supplemented group and decreased vitamin C in both groups after recovery (p < .05). Neutrophil catalase and glutathione peroxidase gene expression and nitrite levels were significantly increased as result of exercise (p < .05). Nitrotyrosine and protein carbonyl derivates increased only in the placebo group after exercise (p < .05), and these values remained high at recovery. No significant differences were evidenced in caspase-3 activity and DNA damage. Antioxidant supplementation with vitamins C and E reduced the exercise-induced oxidation of proteins in neutrophils, without altering the antioxidant adaptive response, as evidenced by the increased catalase and glutathione peroxidase gene expression.
Antoni Sureda, Miguel D. Ferrer, Antonia Mestre, Josep A. Tur and Antoni Pons
E. Jane Watkinson and Sock Miang Koh
Moderately mentally handicapped children ages 10 to 12 and youths 13 years and older ran the endurance run of the Canada Fitness Awards Adapted Format under two testing conditions. The current test protocol is one in which subjects select a pace for the entire race and are prompted only by verbal encouragement. A second testing protocol was used in which subjects were paced by a runner at a pace just a bit faster than that displayed during their runs under the current protocol. In the pacing protocol, instructors ran in front of the subjects and verbally and visually prompted them to keep up. The objective of the pacing protocol was to reduce the degree to which the subjects had to plan their runs, and to increase motivation to continue. Completion rates improved with the pacing protocol for both groups. Completion times improved for the younger group. Heart rate responses under both testing conditions were very high and small differences were observed between the two conditions in this dependent variable. Heart rates of subjects in both conditions were at vigorous to severe intensity levels throughout the runs, indicating that subjects were lacking in fitness and were performing at or near maximal capacities.
Marquell J. Johnson
Daniela Mirandola, Guido Miccinesi, Maria Grazia Muraca, Eleonora Sgambati, Marco Monaci and Mirca Marini
Physical activity interventions are known to be effective in improving the physical and psychological complaints of breast cancer survivors.
To investigate the impact of a specific exercise training program on upper limb mobility and quality of life in breast cancer survivors.
The study included 55 women recruited at the Cancer Rehabilitation Centre in Florence after the completion of breast cancer treatment and rehabilitative physiotherapy. All participants underwent an 8-week specific exercise training to improve upper limb mobility function and quality of life. Anthropometric parameters were measured, and each subject underwent a battery of fitness tests to assess shoulder-arm mobility, range of motion, and back flexibility before and after specific exercise program. All participants filled out the Short Form-12 and numerical rating scale questionnaires to assess the quality of life and to quantify back and shoulder pain intensity.
The evaluation of shoulder-arm mobility and self-reported questionnaire data revealed a statistically significant improvement after completion of our specific exercise program.
An organized specific program of adapted physical activity can be effective in reducing the main adverse effects of surgery and oncological therapy, and may significantly improve shoulder-arm mobility and quality of life in breast cancer survivors.