Physical work capacity after 7 wk of wheelchair training: effect of intensity in able-bodied subjects

Woude, L.H.V. van der; Croonenborg, J.J. van; Wolff, Ingmar; Dallmeijer, Annet J.; Hollander, A. P.

doi:10.1097/00005768-199902000-00018

Cited by 48 publications

(91 citation statements)

References 23 publications

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“…In addition, a trend towards a greater increase in PO Max was found for the HI group (159 versus 124%). These findings in our fairly recently injured SCI individuals are in line with previous studies assessing the effect of arm training intensity on physical capacity in able-bodied subjects 21 and long-term spinal cord-injured individuals. 22 Lipid profile Evidence suggests that cardiovascular diseases, particularly coronary heart disease (CHD), are the leading Figure 2 Correlation between VO 2Peak and insulin sensitivity.…”

Section: Physical Capacitysupporting

confidence: 92%

Effect of training intensity on physical capacity, lipid profile and insulin sensitivity in early rehabilitation of spinal cord injured individuals

et al. 2003

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Study design: Pre-post training intervention. Objectives: To evaluate the effect of training intensity on physical capacity, lipid profile and insulin sensitivity in early rehabilitation of spinal cord injured (SCI) patients, and to assess the correlation between peak aerobic capacity (VO 2Peak ) and insulin sensitivity. Setting: Spinal Cord Rehabilitation Unit, Sunnaas Hospital, Nesoddtangen, Norway. Method: Six recently injured SCI individuals participated in the arm training intervention and were randomly admitted to a high-intensity (HI; 70-80% heart rate reserve (HRR)) and lowintensity (LI; 40-50% HRR) group. The 1 h interval training consisted of 3 min exercise bouts interspersed with 2 min of rest, three times a week for 8 weeks. In addition, a correlation coefficient was obtained between VO 2Peak and insulin sensitivity in 11 SCI patients. Results: The 8-week training program resulted in a significant increase in VO 2Peak and maximal power output (PO Max ) for the group as a whole (Po0.05). VO 2Peak increased significantly more and total cholesterol/high-density lipoprotein cholesterol (TC/HDL-C) ratio and triglycerids decreased significantly more in the HI group than in the LI group (P ¼ 0.05). Training-induced changes in insulin sensitivity were significantly different between the groups (P ¼ 0.05), which was due to a nonsignificant decline in insulin sensitivity in the HI group and a nonsignificant improvement in the LI group. A significant positive correlation was found between VO 2peak and insulin sensitivity (r ¼ 0.68, P ¼ 0.02). Conclusion:The interval arm training protocol as used in the present study enables recently injured SCI patients to do substantial work at a relatively high intensity. Results indicate that improvements in physical capacity and lipid profile were more pronounced in response to highintensity training. The significant correlation between maximal oxygen consumption and insulin sensitivity indicates that, as in the able-bodied population, peak aerobic capacity is a predictive value with regard to insulin sensitivity in SCI. Future studies with larger groups assessing the role of exercise intensity on insulin sensitivity in SCI are suggested.

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Section: Physical Capacitysupporting

confidence: 92%

Effect of training intensity on physical capacity, lipid profile and insulin sensitivity in early rehabilitation of spinal cord injured individuals

et al. 2003

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“…Although the propulsion frequency did not affect the relative phase directly, participants elected a higher propulsion frequency for higher velocities. This effect was demonstrated previously for both wheelchair sportsmen and nonwheelchair users (van der Woude et al, 1988(van der Woude et al, , 1989. It is possible that propelling the wheelchair more quickly caused the propulsion cycle to start a bit later and, therefore, closer to the onset of the respiratory cycle.…”

Section: Resultssupporting

confidence: 70%

“…Only partial support has been given to this latter argument in animal experiments (Eldridge, Millhorn, Kiley, & Waldrop, 1985;Iscoe & Polosa, 1976;Viala, 1986;Viala & Freton, 1983;Viala, Vidal, & Freton, 1979). The argument for some form of parallel control is made stronger, however, in the absence of alterations to LRC as a result of direct changes in the movement pattern, as should have occurred during velocity and rolling resistance manipulations (e.g., van der Woude et al, 1988). Instead, the only systematic changes in LRC appeared to have come from experience, a hypothesis that we tested explicitly in Experiment 2.…”

Section: Discussionmentioning

confidence: 99%

“…Challenge may be operationalized as the participant's energy expenditure or power output, which is the product of velocity and any resistance (e.g., air and friction) that the participant encounters during the task. MacDonald et al (1992) tested the impact of velocity only on LRC, but other experiments on wheelchair propulsion have varied the rolling resistance of the wheels to control for resistance and, therefore, to influence power output (e.g., van der Woude et al, 1988). Therefore, a second alteration to MacDonald et al's methodology that we introduced was the manipulation of both velocity and rolling resistance in Experiment 1, to determine both their individual effects and their joint influence (through power output) on LRC.…”

Section: Goals Of the Present Studymentioning

confidence: 99%

See 1 more Smart Citation

Coupling of breathing and movement during manual wheelchair propulsion.

Amazeen¹,

Amazeen²,

Beek³

2001

Journal of Experimental Psychology: Human Perception and Perfor

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The hypothesis of this study was that stable coordination patterns may be found both within and between physiological subsystems. Many studies have been conducted on both monofrequency and multifrequency coordination, with a focus on both the frequency and phase relations among the limbs. In the present study, locomotor-respiratory coupling was observed in the maintenance of small-integer frequency ratios (2:1, 3:1, and 4:1) and in the consistent placement of the inspiratory phase just after the onset of the movement cycle during wheelchair propulsion. Level of experience and various motor and respiratory parameters were manipulated. Coupling was observed across levels of experience. Increases in movement frequency were accompanied by a shift to larger-integer ratios, suggesting that a single modeling strategy (e.g., the Farey tree; D. L. Gonzalez & O. Piro, 1985) may be used for coordination both within the motor subsystem and between it and other physiological subsystems.Humans and animals alike demonstrate a discrete number of stable coordination patterns. Patterns of locomotion, called gaits, are limited in number and easily recognizable. For quadrupeds, the three most common gaits are the walk, trot, and gallop, although more complex subdivisions of gait are possible (for an overview, see Collins & Stewart, 1993;Schoner, Jiang, & Kelso, 1990). In bipedal locomotion, spontaneously produced patterns are limited to the walk or run (antiphase) and the jump (inphase) patterns. In all of these patterns, the limbs move at the same frequency, so that the different patterns may be characterized by different phase relations between the limbs. When the constraint of postural stability is removed, observed motor patterns become more complex and different phase relations (e.g., 90°, Zanone & Kelso, 1992) can be acquired. The HKB model, a dynamical model first developed by Haken, Kelso, and Bunz (1985), accommodates the different monofrequency coordination patterns observed including the effects of learning, handedness, and attention (see summary in Amazeen, Amazeen, & Turvey, 1998). Multifrequency coordination patterns-in which the limbs move at different frequencies, as in drumming (e.g.,

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“…Because the physical strain can be very high during wheelchair-related activities of daily living [1], upper-body strength and cardiovascular endurance are extremely importent for the independence of individuals who use manual wheelchairs [2]. The physical capacity of wheelchair-dependent individuals which is often low as a result of the disability and sedentary lifestyle [3], however, can be improved by training [2].…”

Section: Introductionmentioning

confidence: 99%

Hand rim wheelchair training: Effects of intensity and duration on physical capacity

Groot¹,

Scheer²,

Windt³

et al. 2013

Health

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The purpose of this study was to compare the effects of intensity and duration of training on physical capacity in a 7 weeks hand rim wheelchair training in able-bodied men. Thirty-six able-bodied men participated in three groups: a 30% heart rate reserve (HRR) 70 min training group (N = 14), a 70% HRR 30 minutes training group (N = 13) and a 30% HRR 30 minutes training group (N = 9). All groups trained 3 times per week for 7 weeks on a treadmill. Pre and post tests on a wheelchair ergometer comprised a submaximal test at 20% and 40% of the estimated peak power output , in which submaximal heart rate, oxygen uptake and mechanical efficiency were determined. In maximal exercise tests, maximal isometric strength, sprint power, peak power output and peak oxygen uptake were measured. No significant differences were found between the training groups on submaximal and maximal parameters. It can be concluded that, in persons new to wheelchair use, seven weeks of wheelchair endurance training at an intensity of 30% HRR for 30 minutes is as effective as a training at a higher intensity (70% HRR) or with a longer duration (70 min).

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Physical work capacity after 7 wk of wheelchair training: effect of intensity in able-bodied subjects

Cited by 48 publications

References 23 publications

Effect of training intensity on physical capacity, lipid profile and insulin sensitivity in early rehabilitation of spinal cord injured individuals

Effect of training intensity on physical capacity, lipid profile and insulin sensitivity in early rehabilitation of spinal cord injured individuals

Coupling of breathing and movement during manual wheelchair propulsion.

Hand rim wheelchair training: Effects of intensity and duration on physical capacity

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