Biomedical subjects

D M Plank

Publications and source records attributed to D M Plank.

5 recordsLinked to original sources

PubMed2004

Running performance in middle-school runners.

AIM: This study examined the relationship of 3-km run time to indices of aerobic and anaerobic ability in 9 male runners (13.4+/-0.6 years, mean+/-SD). METHODS: Anthropometric measurements were made, and an exercise test to determine running economy at 187 m x min(-1) and (.-)VO(2max) were assessed on a treadmill. On a separate day, 2 55-m sprints followed by a 3-km run were performed on a 200-m indoor track. Capillary blood samples were obtained from a finger tip immediately after the run to determine blood lactate level. Fractional utilization (%(.-)VO(2max) used during the 3-km run) was calculated. Correlations were used to examine the relationship between run time and the physiological measurements. RESULTS: Mean values for (.-)VO(2), HR and RER at maximal exercise were 61.7+/-4.4 ml x kg(-1)xmin(-1), 198.9+/-6.7 b x min(-1), and 1.16+/-0.04, respectively. The average time to run 3 km was 13.27+/-0.97 min (90.1+/-7.2% of (.-)VO(2max)). Post-run blood lactate level was 8.3+/-3.2 mmol x L(-1) and was significantly related (r=-0.73, p=0.02) to 3-km time. Fractional utilization tended to be related (r=-0.56, p=0.12) to time. CONCLUSIONS: In this age group the ability to run at a high percentage of (.-)VO(2max) and tolerate a high blood lactate appear to be important determinants of running performance in young male runners.

Adolescent↗

PubMed2002

Attainment of maximal exercise criteria in boys and men.

BACKGROUND: This study tested the hypothesis that the occurrence of a VO(2) plateau at maximal exercise would be greater in men versus boys. Secondary indicators of maximal effort also were examined. METHODS: Sixteen boys (10.7+/-0.6 yrs) and 21 men (22.5+/-2.0 yrs) performed a graded exercise test on a treadmill at a constant speed of 8.04 km x hr(-1) with 2.5% increments in elevation. The men also performed a second test at 11.26 km x hr(-1) with similar increases in slope. RESULTS: At 8.04 km x hr(-1) , VO(2) max was 52.3+/-6.0 and 52.5+/-5.1 ml x kg(-1) x min(-1) in boys and men, respectively (p>0.05). In the men, VO(2) max (53.3+/-5.4 ml x kg(-1) x min(-1) ) was higher (p<0.05) in the faster protocol. The percentage of men achieving the criterion was nearly double the percentage of boys (23.8 vs 12.5%), although the difference was not significant. Age-specific criteria heart rate (HR) and respiratory exchange ratio (RER) were achieved in a similar manner; however, more men (100%) than boys (86.7%) achieved an age-specific blood lactate (BLa) criterion (p<0.05). Plateau achievement increased to 33.0% in the 11.26 km x hr(-1) protocol, but was not significantly different from 8.04 km x hr(-1). HR, RER and BLa criteria achievement were comparable. CONCLUSIONS: Maturation may influence the achievement of a plateau and BLa criteria, but not age-specific criteria for RER or HR.

Adult↗

PubMed2000

The research nurse role in a clinic-based oncology research setting.

Public demand and government support for evaluating new cancer drugs and methods in a more timely manner have significantly affected clinical research programs. To meet these demands, it is critical to have research personnel with an appropriate skill mix to ensure that clinical trials are conducted safely and effectively, while scientific integrity is maintained. This article describes the development and integration of the research nurse role within an oncology research program in a large outpatient oncology clinic. Methods for evaluating the research nurse role included literature review, analysis of job descriptions, and dialogue with research staff, oncology staff, and a clinical nurse specialist. A Review of the Nurse Practice Act of Wisconsin and the Oncology Nursing Society standards provided license and practice standards. Similarities and differences between the roles of the research nurse and the chemotherapy nurse are analyzed. Complementary roles and functions are identified, and areas of role overlap are defined. This report expands the limited current literature regarding this subject. The findings provide the reader with a framework for evaluating the roles of registered nurse personnel in a clinical setting. Although each institution has unique characteristics or research needs, the method used to address the reported program is transferable.

Clinical Nursing Research↗

PubMed1994

Framing treatment options: a method to enhance informed consent.

Advanced practice nurses are challenged with counseling and providing information to clients about treatment options during the informed consent process. In the clinical area of oncology, clients are faced with choosing treatment options that are undesirable or affect quality and quantity of life directly. Framing as a nursing intervention to assist advanced practice nurses during the informed consent process is explored in this article. Framing provides a method to present information from different vantage points and perspectives with a focus on the client's values and perceptions of quality of life. Parse's man-living-health theory is used to guide nursing practice. Quality of life is addressed with an assessment tool by Ferrans. The use of framing to present treatment options from the client's perspective of health and quality of life, as well as from the biomedical and nursing perspectives, can result in a consent that is truly informed.

Disclosure↗

PubMed1981

Evaluation of speech following prosthetic obturation of surgically acquired maxillary defects.

The speech intelligibility of patients who have undergone partial surgical resection of the maxilla was investigated. The intelligibility characteristics of connected discourse in each patient were compared under three experimental conditions: presurgical, postsurgical with immediate prosthetic obturation, and postsurgical with definitive prosthetic obturation. The ability of untrained listeners to differentiate between presurgical speech and postsurgical speech following definitive prosthetic treatment was also studied. Each subject recorded a standard passage of connected discourse, the Rainbow Passage, under the three conditions stated above. Each of the 24 recordings was then segmented into 23 phrases and presented over earphones to listeners. A group of 10 listeners evaluated each recording, or a total of 240 listeners was used. The recordings were graded by the number of words correctly written. Analysis of variance showed no significant loss in intelligibility across the three conditions. A group of 50 listeners than evaluated sentence pairs containing samples of presurgical speech and speech produced following surgery and definitive prosthetic obturation. Their task was to judge whether there was a difference between the two speech samples. This was done in a classroom over loudspeakers. Sign-test procedures revealed that listeners could differentiate presurgical speech samples from postsurgical speech with definitive prosthetic obturation in four of the eight patients studied.

Adult↗