摘要:

Dr. Balke received the Award of Excellence for his contributions to the field of exercise physiology and cardiac rehabilitation from the American Association of Cardiovascular and Pulmonary Rehabilitation, November 9, 1990, in Dallas, Texas. These are his remarks on acceptance of this award.

ISSN:0883-9212    

出版商:OVID    

年代:1990

数据来源: OVID

摘要:

The use of volleyball in cardiac rehabilitation and the incidence (event/patient hours) of cardiovascular events and musculoskeletal injuries during volleyball were surveyed in 270 community-based/maintenance cardiac rehabilitation programs around the United States. Only 56 (21%) of the programs surveyed incorporated volleyball. Approximately 70% of the patients participated in volleyball. Four events of cardiac arrest were reported while engaging in volleyball. Although not statistically significant (P < 0.05), this rate of cardiac arrest in volleyball is more than three-fold greater than that associated with the regular exercise session (without volleyball). However, the incidence of combined cardiovascular events was significantly (P < 0.05) greater during the regular exercise session than volleyball. The incidence of the musculoskeletal injuries was significantly greater during the volleyball session (P < 0.05). No significant relationship was found between the combined cardiovascular-musculoskeletal incidence rate and each of the following: 1) modified/unmodified volleyball, 2) intensity monitored by perceived exertion or heart rate, or 3) volleyball, whether played as a cool-down or as an aerobic stimulus. A significant negative relationship was found between the cardiovascular incidence and the inclusion/exclusion criteria (> 5 or 8 METs) for volleyball (P < 0.05). Because the inclusion/exclusion criteria could not be associated with the musculoskeletal incidence, the authors assume that the musculoskeletal incidence may be related to the nature of the game. Therefore, their main recommendation is to further modify the characteristics of the game and prepare the patient specifically for its musculoskeletal demands.

ISSN:0883-9212    

出版商:OVID    

年代:1990

数据来源: OVID

摘要:

Maximal inspiratory pressure often has been used to evaluate the strength or fatigue of the inspiratory muscles. Increased lung volume has been shown to effect maximal inspiratory pressure. If the measurements are taken from different lung volumes, some inferences drawn from changes in maximal inspiratory pressure may be mistaken. The authors quantitatively examine the effects of changing lung volumes on the development of maximal inspiratory pressure. Fifty-nine healthy subjects performed maximal inspiratory pressure maneuvers at lung volumes ranging from residual volume to 2.5 L above residual volume. At each lung volume, the subjects inhaled maximally against a closed-end tube and the inspiratory pressure was measured. The results of the study indicate that maximal inspiratory pressure decreased with increased lung volume, and that the decrease began with lung volumes as little as 0.5 L above residual volume. Further 0.5 L increases in lung volume each led to significant additional decreases in maximal inspiratory pressure. Therefore, the authors conclude that the response of decreased maximal inspiratory pressure with increased lung volume is a continuous one, which begins at very low lung volumes. The authors argue that it is very important to standardize the lung volume at which the pressure is measured when performing maximal inspiratory pressure tests. With the fluctuations inherent in functional residual capacity (particularly while the person is concentrating on breathing) residual volume may be a better position from which to make maximal inspiratory pressure measurements.

ISSN:0883-9212    

出版商:OVID    

年代:1990

数据来源: OVID

摘要:

To meet the need for a graded exercise test (GXT) suitable for the elderly, a protocol was devised at Lidcombe Hospital, which was evaluated in terms of feasibility, exercise time, safety, and reproducibility. The protocol was characterized by a 2-minute warm-up (1.6 kpm, 0% grade), followed by 10 stages of increasing speeds and grades, each stage lasting for 3 minutes. This was applied on 304 volunteers aged 65 years and older (&OV0335; = 70.3 ± 4.7 years) with different cardiovascular states who had no absolute contraindications to exercise. Two hundred eighty-nine subjects (95%) completed the GXT, achieving maximal symptom-limited cardiopulmonary endpoints. The mean exercise time was 13.6 ± 4.3 minutes. There were no serious or life-threatening complications during the GXT or within 24 hours after GXT. Reproducibility (test-retest reliability for exercise time) based on 14 control subjects was significant (r = 0.90, p < 0.01). A significant and very good correlation between exercise time and VO2was found (r = 0.89, p < 0.001) based on measuring the VO2at various times during GXT in 7 subjects.

ISSN:0883-9212    

出版商:OVID    

年代:1990

数据来源: OVID

ISSN:0883-9212    

出版商:OVID    

年代:1990

数据来源: OVID

ISSN:0883-9212    

出版商:OVID    

年代:1990

数据来源: OVID