Re-evaluation of exercise prescription for Japanese type 2 diabetic patients by ventilatory threshold

Mie Kunitomi, Kayo Takahashi, Jun Wada, Hisao Suzuki, Nobuyuki Miyatake, Saeko Ogawa, Sachiko Ohta, Hikaru Sugimoto, Kenichi Shikata, Hirofumi Makino


33 被引用数 (Scopus)


Prescription of aerobic exercise for Type 2 diabetes mellitus (Type 2 DM) in clinical practice is frequently based on exercise intensity at maximum heart rate (60 < HR(max) < 79%), heart rate reserve (50 < HR(reserve) < 74%), and rating of perceived exertion (12 < RPE < 13). We examined these parameters in Japanese males with Type 2 DM at ventilatory threshold (VT) to investigate the exercise capacity of Type 2 DM patients and re-evaluate the exercise prescription. Fifty-six Japanese Type 2 DM males without autonomic neuropathy [age, 53.5 ± 7.7 years; body mass index (BMI), 23.7 ± 3.6 kg/m2] were enrolled and compared with 56 age- and BMI-matched healthy Japanese males. VT was determined breath by breath during exercise test using a ramp protocol and rates of oxygen consumption (VO2), work rate (WR), HR, ΔHR, %HR(max), %HR(reserve), and RPE were measured at VT. Type 2 DM patients had significantly lower VO2 (3.6 ± 0.4 metabolic equivalents (METs)) and WR (62 ± 14 W) than controls (VO2, 3.9 ± 0.6 METs; WR, 74 ± 13 W). %HR(reserve), (32.6 ± 7.7%) was also significantly lower compared with controls (37.6 ± 8.3%), while %HR(max), was not different. RPE was also similar in diabetics (12.4 ± 1.5) and controls (12.9 ± 1.2), however, it was significantly lower in diabetic patients aged 60-69 years (11.8 ± 2.0) and those with distal symmetric sensory neuropathy (12.2 ± 1.0). Our results indicate reduced exercise capacity in Japanese Type 2 DM males and the exercise intensity of 60%HR(max), 30%HR(reserve), and RPE 12 is recommended in elderly diabetics and those with diabetic sensory neuropathy. (C) 2000 Elsevier Science Ireland Ltd.

ジャーナルDiabetes Research and Clinical Practice
出版ステータスPublished - 10月 1 2000

ASJC Scopus subject areas

  • 内科学
  • 内分泌学、糖尿病および代謝内科学
  • 内分泌学


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