Isometric strength, sprint power, and aerobic power in individuals with a spinal cord injury

Janssen, Thomas W J; Oers, C. A. J. M. Van; Hollander, A. P.; Veeger, H.E.J.; Woude, L.H.V. van der

doi:10.1249/00005768-199307000-00016

Cited by 79 publications

(84 citation statements)

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“…Although a recent study demonstrated that relation ships among Fi s o, P30, V0 2 peak and POmax were strong in wheelchair users with SCI, 16 POmax and V02peak seem to be the most important determinants of physical strain during ADL. In addition to POmax and V0 2 peak, Fiso was entered secondly into five of the 12 equations, indicating that subjects with an equal POmax or V0 2 peak but with more isometric strength will have less strain during the transfers and the curb ascent.…”

Section: Physical Strainmentioning

confidence: 85%

Relationship between physical strain during standardised ADL tasks and physical capacity in men with spinal cord injuries

et al. 1994

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To describe physical strain during activities of daily living (ADL) , 44 men with spinal cord injuries (C4-L5) performed a set of standardised tasks. The physical strain was defined as the highest heart rate response expressed as a percentage of the individual heart rate reserve (% HRR). The physical strain averaged over the subjects who performed all tasks ( n = 24) was (mean ± SD): 20.2 ± 7.2 %HRR (washing hands), 20.4 ± 7.3 %HRR (passing a side-hung door), 28.8 ± 10.8 %HRR (transfer to a toilet), 31.2 ± 13.1 %HRR (ascending an 8 cm curb), 33.9 ± 12.0 %HRR (transfer to a shower seat), 35.1 ± 10.5 %HRR (transfer to bed), 36.4 ± 13.3 %HRR (preparing lunch), 37.1 ± 12.0 %HRR (washing up), 38.7 ± 14.9 %HRR (ascending a ramp), 39.8 ± 15.6 %HRR (transfer to a shower wheelchair), 41.4 ± 12.1 %HRR (chan ging sheets), and 45.9 ± 10.4 %HRR (entering a car). Physical strain could be notably high, but large variations among subjects were present. During all tasks, subjects with tetraplegia had significantly higher levels of strain than subjects with low (T6-L5) lesions. Physical strain was inversely related to parameters of physical capacity: isometric strength (r: -0.34 to -0.72), sprint power (r: -0.34 to -0.69), peak oxygen uptake (r: -0.41 to -0.81) and maximal power output (r: -0.52 to -0.82). Parameters of physical capacity were better predictors of physical strain than was the lesion level, and explained 37-71% of the variance in strain during ADL. It was also concluded that the method used in this study provides a quantitative and objective estimation of physical strain and may therefore be a useful tool to identify task difficulty during rehabilitation and to evaluate the results of task and physical training on the physical strain during ADL.

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Section: Physical Strainmentioning

confidence: 85%

Relationship between physical strain during standardised ADL tasks and physical capacity in men with spinal cord injuries

et al. 1994

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“…The lower values for the maximal power output and oxygen uptake in the motor complete tetraplegia groups are in accordance with several previous studies, which reported that endurance capacity is strongly determined by the primary impairment (ie the level of the lesion). 4,26,27 The variability within lesion groups was considerable for all investigated SIP68 dimensions. Next to the in¯uence of other personal characteristics, this large variability seems to be the consequence of the heterogeneity in lesion level within the lesion groups.…”

Section: Sip68 and Endurance Capacity In Relation To Lesion Levelmentioning

confidence: 94%

Health related functional status in men with spinal cord injury: relationship with lesion level and endurance capacity

Dallmeijer

Woude

2001

Spinal Cord

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Study design: Cross-sectional study. Objectives: To determine the relationship of health related functional status with lesion level and endurance capacity in persons with spinal cord injury (SCI). Methods: Thirty-seven men with SCI were divided in four lesion groups: high tetraplegia (motor complete; C5 ± C6, n=10), low tetraplegia (motor complete, C6/7 ± C8, n=9), motor incomplete tetraplegia (n=7), and paraplegia (n=11). Health related functional status was measured with the short version of the Sickness Impact Pro®le (SIP68), including a physical (SOM), psychological (PSY) and social subscore (SOC). Endurance capacity, de®ned as maximal power output (PO max ) and peak oxygen uptake (VO 2peak ), was measured in a maximal exercise test on a wheelchair ergometer. Results: Total SIP68-score and SOM were signi®cantly di erent between lesion groups, showing higher values in the high-and low-tetraplegia group. There were no di erences between lesion groups for PSY and SOC subscores. VO 2peak and PO max were signi®cantly higher in the paraplegia group, compared to the high and low tetraplegia groups. VO 2peak was also higher in the motor incomplete versus other tetraplegia groups. Signi®cant Spearman correlation coe cients were found for VO 2peak and PO max with SIP68 and SOM (ranging from 70.68 to 70.79) and SOC (ranging from 70.39 to 70.51). No signi®cant relationship was found with PSY. Hierarchical regression analysis showed that after correction for lesion level, 22% of the variance of SIP68, 8% of the variance of SOM, and 30% of the variance of SOC was explained by PO max or VO 2peak . Conclusions: Results indicate that there is an evident relationship between the physical dimensions of health related functional status and lesion level, but not for the psychological and social dimensions. After controlling for lesion level a signi®cant amount of the variance of health related functional status can be explained by endurance capacity parameters. Although no causal relationships can be established in this cross-sectional study, these results suggest that functional status may be improved by increasing the endurance capacity.

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“…Several studies have described both aerobic and anaerobic performance variables of individuals with spinal cord lesion on a wheelchair ergometer, 13,14 but only a few studies were conducted to date with armcranking ergometers in order to assess anaerobic performance of individuals with lower limb impairments. 14 ± 17 This seems particularly justi®ed, taking into account the short duration and relatively high stress of many daily and sport related activities conducted by individuals with lower limb impairments.…”

Section: Introductionmentioning

confidence: 99%

Aerobic and anaerobic arm-cranking power outputs of males with lower limb impairments: Relationship with sport participation intensity, age, impairment and functional classification

et al. 1998

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Fifty individuals with lower limb impairments including spinal cord injury, polio and amputations underwent aerobic and anaerobic arm-cranking tests in a standardized laboratory setting. Based on linear regression models applied with age as dependent variable aerobic performance variable including HRmax (R=0.395, P=0.004), and POaer (R=0.31, P=0.021) were subjected to ANCOVA adjusting for age in order to determine the signi®cance of participation intensity (competitive vs leisure) and type of physical impairment. Anaerobic performance variables were not in¯uenced by age and thereby subjected to 1-Way ANOVA with the same independent variables. Participation intensity and type of impairment signi®cantly discriminated (P50.001) between athletes in all power variables. Linear regression models have shown moderate but signi®cant (P50.001) relationship with functional ability (bases on International Wheelchair Basketball Federation classi®cation system). In anaerobic mean power (MP) classi®cation accounted for 42% of the variance, while in anaerobic peak power (PP) and aerobic Power (POaer) for 38% and 30% respectively. By means of a post hoc Tukey analysis signi®cant dierences were observed between athletes with a high level paraplegia (class 1) and those with one leg aected by polio or amputations (classes 4, 4.5). Athletes with low level paraplegia and two legs aected by polio (classes 2 ± 3.5) had values in-between. Based on the descriptive evaluation, a three group scheme was conceptualized and resubjected to ANOVA. Signi®cant intergroup dierences were thus obtained only for PP. Descriptive PP data for each group were transformed into a ®ve category table in order to provide reference values for ®tness estimation in males with lower limb impairments of various etiologies.

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Isometric strength, sprint power, and aerobic power in individuals with a spinal cord injury

Cited by 79 publications

References 0 publications

Relationship between physical strain during standardised ADL tasks and physical capacity in men with spinal cord injuries

Relationship between physical strain during standardised ADL tasks and physical capacity in men with spinal cord injuries

Health related functional status in men with spinal cord injury: relationship with lesion level and endurance capacity

Aerobic and anaerobic arm-cranking power outputs of males with lower limb impairments: Relationship with sport participation intensity, age, impairment and functional classification

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