PMID- 23959208
OWN - NLM
STAT- MEDLINE
DCOM- 20140415
LR  - 20161125
IS  - 1932-751X (Electronic)
IS  - 1932-7501 (Linking)
VI  - 33
IP  - 5
DP  - 2013 Sep-Oct
TI  - Age-specific normal values for the incremental shuttle walk test in a healthy 
      British population.
PG  - 309-13
LID - 10.1097/HCR.0b013e3182a0297e [doi]
AB  - PURPOSE: The Incremental Shuttle Walk Test (ISWT) is an important functional and 
      prognostic marker in chronic disease. Aging has a detrimental effect on exercise 
      performance. The objective of this study was to produce normal age-specific 
      values for the ISWT in a healthy British population and to explore whether 
      additional variables improve the accuracy of a predictive equation. METHODS: 
      Healthy subjects (N = 152), aged 40 to 90 years, were recruited. Data collection 
      occurred over 2 study visits. Anthropometric and demographic data were collected, 
      and lung function and quadriceps maximal voluntary contraction were measured. An 
      accelerometer was worn for 2 consecutive days at home. The Duke Activity Status 
      Index was completed, and the greatest distance from 2 ISWTs was recorded. 
      RESULTS: One hundred forty subjects (56 men) with mean age (SD) of 59.4 (11.0) 
      years completed 2 ISWTs. Forced expiratory volume in 1 second (FEV(1)) was 109.1% 
      (14.56%) predicted and ISWT distance was 737 m (183 m). Age-specific normal 
      values for the ISWT were observed: mean (lower limit of normal)--40 to 49 years, 
      824 m (765 m); 50 to 59 years, 788 m (730 m); 60 to 69 years, 699 m (649 m); and 
      70 years and older, 633 m (562 m). A predictive equation was developed from 114 
      subjects. Age, body mass index, FEV(1), quadriceps maximal voluntary contraction, 
      and Duke Activity Status Index contributed to ISWT distance predicting 50.4% of 
      the variation in performance. CONCLUSION: We have developed age-specific normal 
      values for performance on the ISWT in a healthy British population. However, even 
      using practical, clinically relevant variables, it is not possible to accurately 
      predict exercise capacity from a regression equation.
FAU - Harrison, Samantha Louise
AU  - Harrison SL
AD  - Pulmonary Rehabilitation Research Group, University Hospitals of Leicester 
      National Health Service Trust, Glenfield Hospital, Leicester, United Kingdom. 
      samantha.harrison@uhl-tr.nhs.uk
FAU - Greening, Neil J
AU  - Greening NJ
FAU - Houchen-Wolloff, Linzy
AU  - Houchen-Wolloff L
FAU - Bankart, John
AU  - Bankart J
FAU - Morgan, Mike D L
AU  - Morgan MD
FAU - Steiner, Michael C
AU  - Steiner MC
FAU - Singh, Sally J
AU  - Singh SJ
LA  - eng
PT  - Clinical Trial
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Cardiopulm Rehabil Prev
JT  - Journal of cardiopulmonary rehabilitation and prevention
JID - 101291247
SB  - IM
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Aging/*physiology
MH  - Exercise Test
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Motor Activity/*physiology
MH  - Muscle Strength/*physiology
MH  - Reference Values
MH  - Spirometry
MH  - United Kingdom
MH  - Walking/*physiology
EDAT- 2013/08/21 06:00
MHDA- 2014/04/16 06:00
CRDT- 2013/08/21 06:00
PHST- 2013/08/21 06:00 [entrez]
PHST- 2013/08/21 06:00 [pubmed]
PHST- 2014/04/16 06:00 [medline]
AID - 10.1097/HCR.0b013e3182a0297e [doi]
PST - ppublish
SO  - J Cardiopulm Rehabil Prev. 2013 Sep-Oct;33(5):309-13. doi: 
      10.1097/HCR.0b013e3182a0297e.