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H Pekkarinen

Publications and source records attributed to H Pekkarinen.

23 records · Page 2Linked to original sources
PubMed1989

On-line determination of anaerobic threshold with rms-EMG.

1. On-line monitoring of surface rms-EMG for detecting the anaerobic threshold during a cycle ergometer test was evaluated and compared with blood lactate and ventilatory parameters in 12 healthy icehockey players. 2. Dislinearity of increase in blood lactate level, ventilatory parameters and myoelectrical activity was observed at the mean work level of 300 (range 270-330) watts in each case. 3. The linearity disappeared at the same time in the rms-EMG-load ratio in working quadriceps and gastrocnemius muscles while also in nonworking frontalis muscle a change in EMG level was noticed. 4. The break point in rms-EMG did not correlate with the changes in skin humidity and temperature. No change was observed in spectral properties of the myoelectrical signals. 5. The rms-EMG follow-up is easier to perform than measurements of blood lactate and ventilatory parameters in the determination of anaerobic threshold.

Adolescent↗
PubMed1982

Results of long-term ECG monitoring in patients submitting to tonsillectomy under local anaesthesia.

Sixteen patients submitted to tonsillectomy under local anaesthesia in a sitting position were studied electrocardiographically. Continuous ECG monitoring was used to discover whether there were any electrocardiographic changes, especially ventricular extrasystolies, during the operation. During the entire registration time, which varied from 4.5-22.5 hours, ventricular extrasystolies were found in seven of the sixteen patients. During the operation only a single VES was seen, in one patient. We conclude that tonsillectomy done under local anaesthesia is safe from the cardiovascular point of view.

Adolescent↗
PubMedDate not supplied

Relation between commuting, leisure time physical activity and serum lipids in a Chinese urban population.

PRIMARY OBJECTIVE: To analyse the association between both commuting and leisure time physical activity and serum lipids in a Chinese population. POPULATION: A total of 1786 males and 1922 females aged 20-49 years. METHODS: A cross-sectional survey was carried out in 1989 in urban area of the city of Tianjin, China. Commuting and leisure time physical activity, total cholesterol, high density lipoprotein cholesterol, low density lipoprotein cholesterol and triglycerides were determined. RESULTS: Daily walking or cycling to and from work was inversely associated with serum total cholesterol, low-density lipoprotein cholesterol and triglyceride concentrations among men and positively associated with high-density lipoprotein cholesterol concentrations among women as compared to travelling to and from work by bus. CONCLUSIONS: The present study showed a significant association between serum lipids and commuting physical activity, but no relation with leisure time sports.

Adult↗