The cardiovascular stress of 60% partialweight-bearing gait was studied in 9 normal male subjects aged from 23 to 34. Double crutch (DC), single crutch (SC) and single Lofstland crutch (SLC) were used for the walking device. Walking modalities were 3 point gait for DC walking, and 2 point gait for SC and SLC walking. First, the subjects ambulated for 5 minutes without crutches (control walking), then ambulated for the same time with various crutches at 50 m・min^-1 and on a 0% grade on the treadmill. So 4 tasks were given to the each subject. In determining the order of crutch using, the Latin square design was used to avoid the effect of sequence.
Heart rates (HR) and oxygen consumption (VO₂) were measured at sitting, standing and every minute during 5 minutes walking. Systolic blood pressure (SBP) was measured at sitting, standing and 1st, 3rd and 5th minute, and Borg's rated perceived exersion (RPE) at 1st, 3rd and 5th minute during walking. Rate pressure product (RPP) was determined by a product of HR and SBP.
The results were summarized as follows:
1: There were no significant differences of VO₂ among 3 crutch walkings. VO₂ of the 5th minute were 14.6 ± 2.6, 15.1 ± 2.9 and 15.4 ± 2.3 ml・kg^-1・min^-1 for DC, SLC and SC walking, respectively. Those values were approximately 1.5 times to the control walking.
2: There were also no significant differences of HR but were obvious differences of SBP among 3crutch walkings (P < 0.01). The mean HR of 5th minute for each crutch walking increased by 12, 14 and 19 bpm over the mean HR that obtained for control walking and the mean SBP increased by 10, 20 and 30 mmHg for DC, SLC and SC walking, respectively.
3: RPP response was similar to SBP's one. So, cardiovascular stress was clearly demonstrated greater in order of DC, SLC, and SC walking.
4: RPE showed similar tendency to SBP or RPP, and significant correlations with SBP, VO₂ and RPP were observed for SC (r = 0.58, P < 0.01 for SBP and VO₂, r = 0.39, P < 0.05 for RPP) and for SLC walking (r = 0.50, P < 0.01 for SBP, r = 0.48, P < 0.05 for VO₂).
5: These results suggest that the observed differences among 3 crutch walking are a function of the degree of isometric contraction of the push up muscles in the upper extremities. And indicating crutch walking to cardiac or cardiac prone patients, DC walking should be prescribed up to the time when at least more than 80% partialweight-bearing is permitted.

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『親と子の喘息教室』は小児科医，看護婦，理学療法士，その他の職員が協力して昭和57年以来春秋に一回づつ国立療養所医王病院で開かれている。この教室の効果を確かめるために参加者にアンケート調査を行った。それによれば参加した大多数の患者に於いて喘息発作の頻度が低くなり，運動―特に体育の授業や水泳―にも積極的に参加し，これにより精神的にも自信がつき，親も気管支喘息の対処法を活用できるようになった。理学療法士の役割，即ち呼吸コントロール，発作時にとる姿勢，体位排痰法，鼻をよくかむこと等の指導がこの教室の重要な一部であることもこの調査結果が示している。理学療法士はこのような教室へ『教育者』としても参加し，喘息管理の一部を担うのである。加えて，運動誘発性喘息の恐れ，過保護，その他による低体力の患児に対しては病院の理学療法部で運動耐容能増大訓練を計画し，定期的に実施することが望ましい。このようにして初めて気管支喘息の治療・管理が『包括的』だと言えよう。

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