Circulatory and thermal adjustments to prolonged exercise in paraplegic women

Fitzgerald, Patricia; Sedlock, Darlene A.; Knowlton, R. G.

doi:10.1249/00005768-199010000-00014

Cited by 37 publications

(27 citation statements)

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“…Also, SCI experienced higher mean skin temperature in both the upper and lower body than did the AB. This is in accordance with Fitzgerald et al,17 who noted that volunteers with SCI who performed prolonged exercise at 24 -25˚C experienced an increase of ~0.7˚C (in core temperature). It was suggested that the increase in Msk was due to heat being generated from the working muscles, which was then transferred to the skin.…”

Section: Discussionsupporting

confidence: 92%

H eat storage in upper and lower body during high-intensity exercise in athletes with spinal cord injuries

Pritchett¹,

Green²,

Pritchett³

et al. 2011

S. Afr. j. sports med.

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Background: The thermophysiology of athletes with spinal cord injuries (SCI) is not well understood. Spinal cord lesions impact muscle mass, thermoregulatory neural signals and circulatory function. Understanding SCI thermoregulation physiology would benefit exercise function. Therefore, this study was designed to describe heat storage in the upper and lower bodies of SCI and able-bodied (AB) athletes. Procedure: Seven SCI and 8 AB athletes (matched for arm-crank VO2 peak) performed a ramp protocol in an environment similar to an indoor competitive environment (21˚C±1.5˚C, 55±3% relative humidity).Results: SCI athletes experienced similar upper-body heat storage of 0.82±0.59 J.g-1 and lower-body heat storage of 0.47±0.33 J.g-1 compared with that of AB athletes at 0.80±0.61 J.g-1 and 0.27±0.22 J.g-1 for upper and lower body, respectively. There were no significant differences between groups for rectal temperature (Trec) or oesophageal temperature (Tes). However, mean skin temperature (Msk) was significantly higher for SCI throughout the exercise bout (p=0.006). Conclusions: The results of this study suggest that SCI and AB athletes appear to thermoregulate in a similar manner, though SCI tend to store slightly more heat.

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Section: Discussionsupporting

confidence: 92%

H eat storage in upper and lower body during high-intensity exercise in athletes with spinal cord injuries

Pritchett¹,

Green²,

Pritchett³

et al. 2011

S. Afr. j. sports med.

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“…A direct comparison of the core temperature response between SCI and AB individuals during upper body exercise has been reported in relatively few studies (Fitzgerald et al 1990;Hopman et al 1993). Hopman et al (1993) measured rectal temperature (T r ) in low-lesioned (T10-T12) SCI men and in a non-lesioned control group.…”

Section: Discussionmentioning

confidence: 99%

“…However, this type of physical disability need not preclude individuals from being physically active as evidenced by the large number of sport and recreational opportunities available for those who rely on the use of a wheelchair for locomotion. In fact, there is an abundance of information related to exercise responses of individuals with paraplegia (Davis and Shephard 1988;Fitzgerald et al 1990; Camp 1979, 1985;Gass et al 1981;Glaser 1985;Hoffman 1986;Hopman et al 1993;Huonker et al 1998;Sawka 1986;Wells and Hooker 1990). Although much is known about the exercise response and training adaptations of persons with paraplegia, little information is known about recovery from exercise in these individuals.…”

Section: Introductionmentioning

confidence: 99%

Excess post-exercise oxygen consumption in spinal cord-injured men

et al. 2004

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This study examined excess post-exercise oxygen consumption (EPOC) following arm cranking in men who had a traumatic spinal cord injury (SCI). Six physically active SCI men with a lesion level between T10 and T12 and six able-bodied (AB) men who were matched according to upper body peak VO(2) performed 30 min of arm-cranking at 65-70% peak VO(2). Baseline measurements were recorded during the last 10 min of a 40-min seated rest. Subjects remained seated during recovery for 40 min or until VO(2) returned to baseline, whichever was longer. Plasma lactate concentration was measured at rest, at the end of exercise, and at 10, 20 and 40 min of recovery. EPOC duration was not significantly different ( P>0.05) between SCI [23.2 (7.9) min; mean (SE)] and AB [35.0 (15.4) min] men, nor was there a significant group difference in EPOC magnitude [36.8 (7.8) kJ for SCI and 53.0 (22.8) kJ for AB]. There was no significant difference in recovery heart rate (HR) or respiratory exchange ratio (RER) between SCI and AB. However, HR measured at the end of the EPOC period was significantly elevated ( P<0.001) and RER significantly lower ( P<0.03) for both groups when compared to baseline. Lactate concentration was not significantly different between the groups at any sampling period. The findings suggest that physically active SCI men have a similar energy expenditure and time frame for recovery from arm crank exercise as their AB counterparts. Similar to what has been reported following lower body exercise, arm crank exercise elicits a higher HR and lower RER at end-EPOC when compared to pre-exercise values.

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“…In general, the core temperature of paraplegics due to spinal cord injury (SCI) increases significantly more than that of able-bodied persons during exercise and heat exposure (Attia and Engel, 1983;Downey et al, 1973Downey et al, , 1976Fitzgerald et al, 1990;Gass and Camp, 1984;Gass et al, 1988;Guttmann, 1976;Sawka et al, 1989;Yamasaki et al, 2000). The increase in core temperature of a paraplegic is approximately dependent upon the level of the SCI (Gerner et al, 1992;Muraki et al, 1995;Petrofsky, 1992;Yamasaki et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Body Heat Balance of Paraplegics during Exercise in a Hot Environment.

Yamasaki

Kim

Choi

et al. 2001

J. Physiol. Anthropol.

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The purpose of this investigation was to clarify the characteristics of body temperature regulation in paraplegics due to spinal cord injury (SCI) during an arm cranking exercise in a hot environment. Twelve paraplegics with lesions located between Th3 and L1,2 and seven able-bodied subjects (AB) participated in this study. The subjects were exposed to a hot (33°C) or a moderate temperature (25°C) environment for one hour and during the last 10 min of the exposure, the subjects performed arm cranking exercises at an exercise intensity of 40 W. The skin temperatures at the chest, the upper arm, the thigh and the calf, the tympanic membrane temperature (Tty), and the skin blood flow of the thigh (SBFT) were continuously monitored during the experiment. Although no systematical variation was found in the Tty at 25°C, the Tty at 33°C in paraplegics during exercise was significantly greater than that at rest (P<0.01), which indicated a pronounced heat stress for paraplegics at 33°C. SBFT of paraplegics with high lesions of the SCI remained unchanged during the experiment at 25°C and 33°C, while paraplegics with low lesions in this study showed consecutive increases in SBFT during exercise in both environmental conditions similar to AB. The increased core temperature in paraplegics with high lesions was considered to be due to a lack of sweat response and vasomotor activity in the paralyzed area. On the basis of the findings in this study, it can be suggested that high core temperature without any increment of SBFT may be characterized as body heat balance of paraplegics with high lesions during exercise in a hot environment. J Physiol A n t h r o p o l 2 0 ( 4 ) : 2 2 7 -2 3 2 , 2 0 0 1 h t t p : / / www.jstage.jst.go.jp/en/

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Circulatory and thermal adjustments to prolonged exercise in paraplegic women

Cited by 37 publications

References 0 publications

H eat storage in upper and lower body during high-intensity exercise in athletes with spinal cord injuries

H eat storage in upper and lower body during high-intensity exercise in athletes with spinal cord injuries

Excess post-exercise oxygen consumption in spinal cord-injured men

Characteristics of Body Heat Balance of Paraplegics during Exercise in a Hot Environment.

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