Aerobic fitness and running performance of male and female recreational runners

Ramsbottom, Roger; Williams, Clyde; Boobis, L.; Freeman, W.

doi:10.1080/02640418908729818

Cited by 16 publications

(7 citation statements)

References 42 publications

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“…However for both studies, all the athletes satisfied the peak testing criteria by reaching a peak HR 95 percent of age-predicted maximum (200 BPM -1 -chronological age; [9]). In fact, the female WA group mean (± SD) peak HR of 183.0 ± 9.0 BPM -1 would suggest that HR was not impaired by abnormal autonomic cardiac regulation secondary to the nature of the disability [14], and that the peak HRs were comparable to those of AB runners at exhaustion [15], this was also evident for their male WR counterparts [3].…”

Section: Discussionmentioning

confidence: 94%

The oxygen uptake-heart rate relationship in trained female wheelchair athletes

Goosey‐Tolfrey¹,

Tolfrey²

2004

JRRD

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We examined the relationship between the percentage of peak heart rate (HR) and the percentage of peak oxygen uptake during steady-rate incremental wheelchair propulsion in 10 trained female wheelchair athletes (WAs) to determine the appropriateness of using American College of Sports Medicine (ACSM) target HRs for training prescription. Oxygen uptake was calculated during each submaximal exercise stage, and HR was monitored continuously. Peak was determined with the use of a separate protocol. Linear regression equations of percentage of peak HR versus percentage of peak were measured for each participant. Subsequently, we calculated the percentage of peak HR values corresponding with 40%, 60%, 80%, and 85% peak. The linear regression formula (derived as the group mean of the slope and intercept terms determined from each individual participant) was % peak HR = 0.652 × % peak + 35.2 (standard error of the estimate [SEE] 3.41). The group mean of the individual correlation coefficients for the-HR relationship was r = 0.973. The percentage peaks of HRs for the WAs were slightly, though not significantly, greater than those suggested by the ACSM across the exercise intensity continuum. These findings suggest that training programs prescribed on the basis of ACSM target HR guidelines need not be altered for trained female WAs with lesions of T6 and below. Notably, the discrepancy between the WA values and the population norm (ACSM) decreased from 6% at 40% peak (i.e., 61% vs. 55%) to <1% at 85% peak (i.e., 90.6% vs. 90.0%). This discrepancy indicates a tendency for the use of percentage of HR peak at the lower exercise intensities to slightly underestimate the relative exercise intensity (i.e., percentage of peak) in the WA population.

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Section: Discussionmentioning

confidence: 94%

The oxygen uptake-heart rate relationship in trained female wheelchair athletes

Goosey‐Tolfrey¹,

Tolfrey²

2004

JRRD

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“…That is, all the WR reached a HR peak of 95% or more of the age-predicted maximum 200 beatsámin ±1 minus chronological age in years; Lockette and Keyes (1994), thus satisfying the _ V O 2peak test criteria. Therefore, the group's mean (SD) HR peak of 192 (10) beatsámin ±1 would suggest that HR was not impaired by abnormal autonomic cardiac regulation secondary to the nature of the disability (Kerk et al 1995), and that the HR peak were comparable to those of AB runners at exhaustion (Ramsbottom et al 1987). Furthermore, the mean _ V O 2peak value of 2.45 lámin ±1 demonstrated that these athletes were well-conditioned (Kerk et al 1995;Goosey and Campbell 1998) and that standards of performance have improved when compared to previously reported physiological responses of athletes in the UK (Lakomy et al 1987;Campbell 1992).…”

Section: Discussionmentioning

confidence: 94%

Oxygen uptake-heart rate relationship in élite wheelchair racers

Tolfrey

Goosey-Tolfrey

Campbell

2001

European Journal of Applied Physiology

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The American College of Sports Medicine (ACSM) recommends that, as a general rule for health purposes, individuals should exercise at 40%-85% of their maximal oxygen uptakes. Moreover, it has been suggested that 55%-90% of the maximal heart rate may be used as an alternative estimate of these percentage maximal oxygen uptake values. The present study examined the relationship between percentage peak heart rate (% HRpeak) and percentage peak oxygen uptake (% VO2peak) during steady-state incremental intensity wheelchair propulsion of 16 élite, male wheelchair racers (WR). Oxygen uptake was determined during each submaximal exercise stage and heart rate (HR) was continuously monitored. The VO2peak was subsequently determined using a separate protocol. Linear regression equations of % HRpeak versus % VO2peak for each participant included % HRpeak values corresponding to 40%, 60%, 80% and 85% VO2peak. The linear regression equation, derived as the group mean of the slope and intercept terms determined for each individual, was: % peak HR = 0.681 x % peak VO2 + 33.2. The group mean of the individual correlation coefficients for the VO2-HR relationship was 0.99. The values of % HRpeak for each of the % VO2peak values below 85% were significantly greater (P<0.01) than those suggested by the ACSM. This suggests that the ACSM guidelines below 85% VO2peak, based on % HRpeak, may underestimate the relative exercise intensity (i.e. % VO2peak) in the WR population. However, in élite level WR, % HRpeak can be recommended as an alternative estimate of % VO2peak at wheelchair propulsion intensities of 85% VO2peak or more.

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“…There are also two studies that show no correlation between these parameters ( Lortie et al . 1985 , Ramsbottom et al . 1989 ).…”

Section: Discussionmentioning

confidence: 99%

Effect of training on the activity of five muscle enzymes studied on elite cross‐country skiers

Evertsen

Medbø

Jebens

et al. 1999

Acta Physiologica Scandinavica

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This study examines the effect of training intensity on the activity of enzymes in m. vastus lateralis. Elite junior cross-country skiers of both sexes trained 12-15 h weeks-1 for 5 months at either moderate (60-70% of VO2max, MIG) or high training intensity (80-90% of the VO2max, close to the lactate threshold; HIG). Muscle biopsies for enzyme analyses and fibre typing were taken before and after the training period. Histochemical analyses on single fibres were done for three enzymes (succinate dehydrogenase [SDH], hydroxybutyrate dehydrogenase [HBDH], glycerol-3-phosphate dehydrogenase [GPDH]), while the activity of citrate synthase [CS] and phosphofructokinase [PFK] was measured on whole biopsies. The activity of GPDH was low in ST fibres and high in FT fibres. The activity of SDH and HBDH was high in both ST and FTa fibres but low in the FTb fibres. The HIG increased their performance more than the MIG did during the training period as judged from scores on a 20-min run test. The SDH activity rose by 6% for the HIG (P < 0.02). No effects of training were found in the activities of CS, HBDH or GPDH, neither in the two training groups nor for the two genders (P > or = 0.16). The PFK activity fell by 10% for the HIG (P=0.02), while no change was found for the MIG. For GPDH, CS and SDH the women's activity was approximately 20% less than the value for the men (P < 0.03). For PFK and HBDH there was no sex difference (P > or = 0.27). There were positive correlations between the activity of three of the enzymes (CS, SDH and GPDH) and the performance parameters (VO2max, cross-country skiing and running performance; r > or = 0.6, P < 0.01). No correlations were found between the PFK or HBDH activities and the performance parameters (r < or = 0.16, P > 0.05). This study suggests that intensities near the lactate threshold affect biochemical and physiological parameters examined in this study as well as the performance of elite skiers, and that the rate-limiting enzymes may be more sensitive to training than non-rate-limiting enzymes.

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Aerobic fitness and running performance of male and female recreational runners

Cited by 16 publications

References 42 publications

The oxygen uptake-heart rate relationship in trained female wheelchair athletes

The oxygen uptake-heart rate relationship in trained female wheelchair athletes

Oxygen uptake-heart rate relationship in élite wheelchair racers

Effect of training on the activity of five muscle enzymes studied on elite cross‐country skiers

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