Spontaneous activity responses to exercise in males and females

R.R. McLaughlin, D. Malkova, M.A. Nimmo

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

This study examines the impact of a short-term exercise programme, prescribed on the basis of current exercise recommendations, on energy balance in males and females to assess whether this type of exercise induces compensatory changes in spontaneous activity energy expenditure (SAEE) and energy intake (EI).

Individuals were monitored for 16 days, 8 days of habitual physical activity (C) and 8 days when exercise was imposed (E). Total energy expenditure (TEE) was calculated from individual relationships of O2 and CO2 to heart rate (HR) records of HR and physical activity obtained during waking hours of the C and E periods and basal metabolic rate (BMR) measurements (Deltatrac System, Datex Instrumentation). Changes in nude body mass (BM) were estimated by using a digital scale (Sartorius AG, Gottigen, Germany).

Laboratory and free-living.

Eight lean females (body fat: 17.54.5%) and eight males of similar percentage body fat participated in this study. All subjects were Caucasian and aged between 20 and 25 years.

During the E period, a supervised exercise session was conducted every second day, each consisting of a total net energy expenditure of 2092 kJ+BMR at 90% lactate threshold.

During the E period, TEE was higher than C in males and females (exercise: 95.213.9, 78.315.9 MJ; control: 82.410.4, 68.816.7 MJ, respectively; P<0.00; P=0.02). SAEE, calculated as TEE minus the energy expended during exercise, was not significantly different between C (males: 82.44.8 MJ; females: 68.87.6 MJ) and E (males: 86.86.3 MJ; females: 70.07.2 MJ) periods in either gender. Males showed no change in BM over the C (pre-intervention: 83.47.2 kg; post-intervention: 83.16.8 kg) or E (pre-intervention: 83.46.8 kg; post-intervention: 83.46.8 kg) periods. Females' BM over the C period did not alter (pre-intervention: 63.32.8 kg; post-intervention 63.73.1 kg); however, there was a significant decrease (P<0.00) in BM over the E period (pre-intervention: 63.02.7 kg; post-intervention: 62.42.7 kg).

The exercise programme was achieved in males and females without any impact on SAEE. Therefore, differences between genders in relation to BM reduction can be explained by differences in the EI response to exercise.
LanguageEnglish
Pages1055-1061
Number of pages7
JournalEuropean Journal of Clinical Nutrition
Volume2006
Issue number60
Early online date11 Feb 2006
DOIs
Publication statusPublished - 2006

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Energy Metabolism
Basal Metabolism
Energy Intake
Adipose Tissue
Heart Rate
Interpersonal Relations
Germany
Lactic Acid

Keywords

  • energy balance
  • exercise
  • compensation
  • gender differences

Cite this

McLaughlin, R.R. ; Malkova, D. ; Nimmo, M.A. / Spontaneous activity responses to exercise in males and females. In: European Journal of Clinical Nutrition. 2006 ; Vol. 2006, No. 60. pp. 1055-1061.
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abstract = "This study examines the impact of a short-term exercise programme, prescribed on the basis of current exercise recommendations, on energy balance in males and females to assess whether this type of exercise induces compensatory changes in spontaneous activity energy expenditure (SAEE) and energy intake (EI). Individuals were monitored for 16 days, 8 days of habitual physical activity (C) and 8 days when exercise was imposed (E). Total energy expenditure (TEE) was calculated from individual relationships of O2 and CO2 to heart rate (HR) records of HR and physical activity obtained during waking hours of the C and E periods and basal metabolic rate (BMR) measurements (Deltatrac System, Datex Instrumentation). Changes in nude body mass (BM) were estimated by using a digital scale (Sartorius AG, Gottigen, Germany). Laboratory and free-living. Eight lean females (body fat: 17.54.5{\%}) and eight males of similar percentage body fat participated in this study. All subjects were Caucasian and aged between 20 and 25 years. During the E period, a supervised exercise session was conducted every second day, each consisting of a total net energy expenditure of 2092 kJ+BMR at 90{\%} lactate threshold. During the E period, TEE was higher than C in males and females (exercise: 95.213.9, 78.315.9 MJ; control: 82.410.4, 68.816.7 MJ, respectively; P<0.00; P=0.02). SAEE, calculated as TEE minus the energy expended during exercise, was not significantly different between C (males: 82.44.8 MJ; females: 68.87.6 MJ) and E (males: 86.86.3 MJ; females: 70.07.2 MJ) periods in either gender. Males showed no change in BM over the C (pre-intervention: 83.47.2 kg; post-intervention: 83.16.8 kg) or E (pre-intervention: 83.46.8 kg; post-intervention: 83.46.8 kg) periods. Females' BM over the C period did not alter (pre-intervention: 63.32.8 kg; post-intervention 63.73.1 kg); however, there was a significant decrease (P<0.00) in BM over the E period (pre-intervention: 63.02.7 kg; post-intervention: 62.42.7 kg). The exercise programme was achieved in males and females without any impact on SAEE. Therefore, differences between genders in relation to BM reduction can be explained by differences in the EI response to exercise.",
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Spontaneous activity responses to exercise in males and females. / McLaughlin, R.R.; Malkova, D.; Nimmo, M.A.

In: European Journal of Clinical Nutrition, Vol. 2006, No. 60, 2006, p. 1055-1061.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Spontaneous activity responses to exercise in males and females

AU - McLaughlin, R.R.

AU - Malkova, D.

AU - Nimmo, M.A.

PY - 2006

Y1 - 2006

N2 - This study examines the impact of a short-term exercise programme, prescribed on the basis of current exercise recommendations, on energy balance in males and females to assess whether this type of exercise induces compensatory changes in spontaneous activity energy expenditure (SAEE) and energy intake (EI). Individuals were monitored for 16 days, 8 days of habitual physical activity (C) and 8 days when exercise was imposed (E). Total energy expenditure (TEE) was calculated from individual relationships of O2 and CO2 to heart rate (HR) records of HR and physical activity obtained during waking hours of the C and E periods and basal metabolic rate (BMR) measurements (Deltatrac System, Datex Instrumentation). Changes in nude body mass (BM) were estimated by using a digital scale (Sartorius AG, Gottigen, Germany). Laboratory and free-living. Eight lean females (body fat: 17.54.5%) and eight males of similar percentage body fat participated in this study. All subjects were Caucasian and aged between 20 and 25 years. During the E period, a supervised exercise session was conducted every second day, each consisting of a total net energy expenditure of 2092 kJ+BMR at 90% lactate threshold. During the E period, TEE was higher than C in males and females (exercise: 95.213.9, 78.315.9 MJ; control: 82.410.4, 68.816.7 MJ, respectively; P<0.00; P=0.02). SAEE, calculated as TEE minus the energy expended during exercise, was not significantly different between C (males: 82.44.8 MJ; females: 68.87.6 MJ) and E (males: 86.86.3 MJ; females: 70.07.2 MJ) periods in either gender. Males showed no change in BM over the C (pre-intervention: 83.47.2 kg; post-intervention: 83.16.8 kg) or E (pre-intervention: 83.46.8 kg; post-intervention: 83.46.8 kg) periods. Females' BM over the C period did not alter (pre-intervention: 63.32.8 kg; post-intervention 63.73.1 kg); however, there was a significant decrease (P<0.00) in BM over the E period (pre-intervention: 63.02.7 kg; post-intervention: 62.42.7 kg). The exercise programme was achieved in males and females without any impact on SAEE. Therefore, differences between genders in relation to BM reduction can be explained by differences in the EI response to exercise.

AB - This study examines the impact of a short-term exercise programme, prescribed on the basis of current exercise recommendations, on energy balance in males and females to assess whether this type of exercise induces compensatory changes in spontaneous activity energy expenditure (SAEE) and energy intake (EI). Individuals were monitored for 16 days, 8 days of habitual physical activity (C) and 8 days when exercise was imposed (E). Total energy expenditure (TEE) was calculated from individual relationships of O2 and CO2 to heart rate (HR) records of HR and physical activity obtained during waking hours of the C and E periods and basal metabolic rate (BMR) measurements (Deltatrac System, Datex Instrumentation). Changes in nude body mass (BM) were estimated by using a digital scale (Sartorius AG, Gottigen, Germany). Laboratory and free-living. Eight lean females (body fat: 17.54.5%) and eight males of similar percentage body fat participated in this study. All subjects were Caucasian and aged between 20 and 25 years. During the E period, a supervised exercise session was conducted every second day, each consisting of a total net energy expenditure of 2092 kJ+BMR at 90% lactate threshold. During the E period, TEE was higher than C in males and females (exercise: 95.213.9, 78.315.9 MJ; control: 82.410.4, 68.816.7 MJ, respectively; P<0.00; P=0.02). SAEE, calculated as TEE minus the energy expended during exercise, was not significantly different between C (males: 82.44.8 MJ; females: 68.87.6 MJ) and E (males: 86.86.3 MJ; females: 70.07.2 MJ) periods in either gender. Males showed no change in BM over the C (pre-intervention: 83.47.2 kg; post-intervention: 83.16.8 kg) or E (pre-intervention: 83.46.8 kg; post-intervention: 83.46.8 kg) periods. Females' BM over the C period did not alter (pre-intervention: 63.32.8 kg; post-intervention 63.73.1 kg); however, there was a significant decrease (P<0.00) in BM over the E period (pre-intervention: 63.02.7 kg; post-intervention: 62.42.7 kg). The exercise programme was achieved in males and females without any impact on SAEE. Therefore, differences between genders in relation to BM reduction can be explained by differences in the EI response to exercise.

KW - energy balance

KW - exercise

KW - compensation

KW - gender differences

U2 - 10.1038/sj.ejcn.1602417

DO - 10.1038/sj.ejcn.1602417

M3 - Article

VL - 2006

SP - 1055

EP - 1061

JO - European Journal of Clinical Nutrition

T2 - European Journal of Clinical Nutrition

JF - European Journal of Clinical Nutrition

SN - 0954-3007

IS - 60

ER -