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Table 1 Demographics, health status and exercise characteristics of volunteers

From: Changes in peripheral immune cell numbers and functions in octogenarian walkers – an acute exercise study

  Men (n = 11) Women (n = 9)
Demographic characteristics
 Age (yr) 81.0 ± 1.2 81.6 ± 2.7
 Height (cm) 174 ± 5.2 159 ± 6.7
 Weight (kg) 75.8 ± 6.6 55.5 ± 6.6
 Body-mass index (kg/m2) 25.0 ± 1.6 21.8 ± 1.9
 Lean body mass (kg) 57.2 ± 4.7 37.8 ± 5.2
Health status
 Physical activity (hrs/week) 8.5 ± 8.0 5.8 ± 5.9
  ≥ 5 times/week ≥30 min exercise (%) 73 56
 Blood pressure   
  Systolic (mmHg) 140 ± 18 146 ± 17
  Diastolic (mmHg) 81 ± 11 82 ± 10
 Resting heart rate (bpm) 64 ± 20 63 ± 14
 Gait speed (km/h) 4.8 ± 0.7 4.5 ± 0.7
 Grip strength (kg) 41 ± 8.0 25 ± 4.5
 CMV seropositive 6 (55%) 7 (78%)
Use of prescribed medicine
  Anti-hypertensive drugs 2 (18%) 3 (33%)
  Statins 2 (18%) 1 (11%)
  Analgesics 3 (27%) 0 (0%)
  Anti-diabetics 0 (0%) 0 (0%)
  Othera 2 (18%) 1 (11%)
 Pathology
  Hypertension 2 (18%) 3 (33%)
  Cardiovascular disease 2 (18%) 0 (0%)
  Hypercholestorolemiab 2 (18%) 1 (11%)
  Diabetes 0 (0%) 0 (0%)
  Cancer (not further differentiated) 2 (18%) 1 (11%)
  Othera 1 (9%) 2 (22%)
Exercise characteristics
 Exercise duration per day (hh:mm) 7:28 ± 1:10 8:07 ± 0:52
 Speed (km/h) 4.2 ± 0.1 3.7 ± 0.1
 Average heart rate day 1 (bpm) 99.5 ± 11.9 113.6 ± 14.3
 Peak heart rate day 1 (bpm) 112.5 ± 13.1 125.0 ± 14.1
 Exercise intensity day 1 (% of age-adjusted max. heart rate) 65.7 ± 7.7 75.4 ± 9.6
 Fluid balance
  Fluid intake (L)c 1.88 ± 0.8 1.98 ± 0.8
  Change in body mass (absolute kg)c -0.80 ± 0.9 -0.19 ± 0.6
  Change in body mass (relative %)c -1.04 ± 1.1 -0.38 ± 1.0
  Change in plasma volume (relative %)d +3.1 ± 3.2 +4.5 ± 3.5
  1. aVolunteers who were diagnosed and treated for cancer, rheumatoid arthritis, allergy and glaucoma. bHypercholesterolemia is defined as total cholesterol levels of >6.5 mmol, as previously diagnosed by a physician. cDaily fluid intake and changes in body mass during walking. dChanges in plasma volume during walking estimated according to Dill and Costill [27]. Data are presented as mean ± standard deviation