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The purpose of the present study was to examine the effects of exercise on maternal glycogen storage patterns and fetal outcome in mature (approximately 12 months of age) Sprague–Dawley rats. The exercise consisted of treadmill running at 30 m∙min−1, on a 10° incline, for 60 min, 5 days per week, for 4 weeks prior to pregnancy, which continued until day 19 of gestation. In mature animals, chronic exercise increased (p

Forty-five Sprague-Dawley rats (60–80 days old) were randomly placed into one of three groups: sedentary pregnant control (PC); prepregnancy trained animals that exercised throughout pregnancy (PR); and nonpregnant trained animals (NPR). Each exercising animal ran at approximately 60–70% aerobic capacity (V̇O2max) for 1 hour/day up to and including day 18 of gestation (term = 21 days). On day 20 of gestation, fetuses were excised from each pregnant animal and scrutinized for gross abnormalities. In 3 randomly chosen fetuses from each litter, brain, heart, kidney, hind limb, and placental tissues were removed to assess the accumulation of the inducible isoform of the 70-kilodalton heat shock protein (Hsp 72i). No significant differences were detected between fetal hearts, hind limbs, or placental tissues of PC or PR groups. No Hsp 72i signal could be detected in fetal kidney or brain tissues from either pregnant group. Results indicate that maternal core temperature did not reach the threshold that would induce either gross fetal abnormalities or a fetal heat shock protein response. However, fetal and placental growth was reduced by the exercise protocol.

Fibromyalgia (FMS) is a syndrome expressed by chronic widespread body pain which leads to reduced physical function and frequent use of health care services. Exercise training is commonly recommended as a treatment.The objective of this systematic review was to examine the efficacy of exercise training as an treatment for FMS.We searched 6 electronic bibliographies for studies of exercise training in FMS: MEDLINE (1966-12/2000), CINAHL (1982-12/2000), HealthSTAR (1990-12/2000), Sports Discus (1975-05/2000), EMBASE (1974-05/2000) and the Cochrane Controlled Trials Register (2000, issue 4). We also reviewed the reference lists from identified articles including reviews and meta-analyses of treatment studies.Randomized trials focused on cardiorespiratory endurance, muscle strength and/or flexibility as treatment for FMS were selected.Two reviewers independently identified trials meeting inclusion criteria, rated the methodologic quality using 2 standardized validated instruments, evaluated the adequacy of the exercise training stimulus using the American College of Sports Medicine (ACSM) criteria and evaluated the results. Disagreements were resolved through active discussion and consensus. High quality training studies had scores of 50% or greater on van Tulder methodologic criteria and met the minimum training standards of ACSM. Outcome variables were grouped into 7 constructs: pain, tender points, physical function, global well being, self efficacy, fatiguesleep, and psychological function. Two reviewers independently extracted data on study characteristics, results and point estimates for selected variables, and used consensus to address discrepancies.Sixteen trials involving a total of 724 participants were assigned at random to: exercise intervention groups (n=379), control groups (n=277), or groups receiving an alternate treatment (n=68). Seven studies were high quality training studies: 4 aerobic training, 1 a mixture of aerobic, strength and flexibility training, 1 strength training and 2 with exercise training as part of a composite treatment. Flexibility protocols were never described in sufficient detail to allow evaluation. The four high quality aerobic training studies reported significantly greater improvements in the exercise groups versus control groups in aerobic performance (17.1% increase in aerobic performance with exercise versus 0.5% increase in the control groups), tender point pain pressure threshold (28.1% increase versus 7.0% decrease) and improvements in pain (11.4% decrease in pain versus 1.6% increase). Poor description of exercise protocols was common, with insufficient information on intensity, duration, frequency and mode of exercise. Adverse events were also poorly reported.Supervised aerobic exercise training has beneficial effects on physical capacity and FMS symptoms. Strength training may also have benefits on some FMS symptoms. Further studies on muscle strengthening and flexibility are needed. Research on the long-term benefit of exercise for FMS is needed.

The purpose was to determine the effects of exercise on fetal and placental glycogen storage patterns at 20 days gestation (term 21 days) in mature (approximately 12 months of age) Sprague-Dawley rats. The exercise protocol consisted of treadmill running at 30 m min−1, on a 10 incline, for 60 min, 5 days per week, for 4 weeks prior to conception, which continued until day 19 of pregnancy. Exercise produced a significant reduction in fetal body weight, placental weight, and fetal organ weights (heart, kidney, brain, and liver) compared to sedentary control animals (p

The high rates of prevalence of childhood sexual abuse in the United States and Canada suggest that physical therapists work, often unknowingly, with adult survivors of childhood sexual abuse. The purposes of this qualitative study were to explore the reactions of adult female survivors of childhood sexual abuse to physical therapy and to listen to their ideas about how practitioners could be more sensitive to their needs. The dynamics and long-term sequelae of childhood sexual abuse, as currently understood by mental health researchers and as described by the participants, are summarized to provide a context for the findings of this study.Twenty-seven female survivors (aged 19-62 years) participated in semistructured interviews in which they described their reactions to physical therapy.Survivors' reactions to physical therapy, termed "long-term sequelae of abuse that detract from feeling safe in physical therapy," are reported. Participant-identified suggestions that could contribute to the sense of safety are shared.Although the physical therapist cannot change the survivor's history, an appreciation of issues associated with child sexual abuse theoretically can increase clinicians' understanding of survivors' reactions during treatment. We believe that attention by the physical therapist to the client's sense of safety throughout treatment can maximize the benefits of the physical therapy experience for the client who is a survivor.

This study was designed to determine whether Exerstriding, a modified form of walking using walking sticks (Exerstriders), resulted in an augmented cardiorespiratory response and a greater energy expenditure than when walking without Exerstriders. Female subjects (23.6 +/- 4.0 yr; 58.5 +/- 5.5 kg) completed two randomly assigned trials of treadmill walking (6.7 km.h-1; 0% grade; 30 min.) with (Exerstrider (E)) and without Exerstriders (Control (C)). Mean oxygen consumption (E = 20.5 +/- 1.2 ml.min-1.kg-1; C = 18.3 +/- 2.5 ml.min-1.kg-1), heart rate (E = 132.5 +/- 19.2 beats.min-1; C = 121.5 +/- 21.2 beats.min-1) and respiratory exchange ratio (E = .82 +/- .03; C = .78 +/- .04) were significantly greater (Por = 0.05) while walking with Exerstriders. Total caloric expenditure was also significantly greater during the Exerstrider condition (E = 173.7 +/- 20.9 kcal; C = 140.7 +/- 27.2 kcal.). In contrast, the rating of perceived exertion did not differ significantly between the two conditions. These data suggest that Exerstriding provides a means to increase caloric expenditure during submaximal walking, a factor that may be of critical importance in enhancing health benefits--such as improved body composition and aerobic capacity--typically associated with walking programs.

Dave Dravecky, pitcher for the San Francisco Giants, returned to competition 10 months after surgical removal of a desmoid tumor in the deltoid muscle and cryosurgery of the humerus of his pitching arm. While delivering a pitch, Dravecky sustained a spiral fracture of his humerus. Abnormal loading and muscle balance, changes in bone geometry, stress concentration, and fatigue failure may have contributed to the fracture that halted Dave Dravecky's comeback. Exploration of these biomechanical factors may help the reader contemplate a baseball pitcher's return to high performance after musculoskeletal injury, trauma, and surgery. J Orthop Sports Phys Ther 1992;16(1):2-5.

This study was designed to determine whether Exerstriding, a modified form of walking using walking sticks (Exerstriders), resulted in an augmented cardiorespiratory response and a greater energy expenditure than when walking without Exerstriders. Female subjects (23.6 +/- 4.0 yr; 58.5 +/- 5.5 kg) completed two randomly assigned trials of treadmill walking (6.7 km.h-1; 0% grade; 30 min.) with (Exerstrider (E)) and without Exerstriders (Control (C)). Mean oxygen consumption (E = 20.5 +/- 1.2 ml.min-1.kg-1; C = 18.3 +/- 2.5 ml.min-1.kg-1), heart rate (E = 132.5 +/- 19.2 beats.min-1; C = 121.5 +/- 21.2 beats.min-1) and respiratory exchange ratio (E = .82 +/- .03; C = .78 +/- .04) were significantly greater (P < or = 0.05) while walking with Exerstriders. Total caloric expenditure was also significantly greater during the Exerstrider condition (E = 173.7 +/- 20.9 kcal; C = 140.7 +/- 27.2 kcal.). In contrast, the rating of perceived exertion did not differ significantly between the two conditions. These data suggest that Exerstriding provides a means to increase caloric expenditure during submaximal walking, a factor that may be of critical importance in enhancing health benefits--such as improved body composition and aerobic capacity--typically associated with walking programs.