Prediction of peak oxygen uptake from age and power output at RPE 15 in obese women

2010 ◽  
Vol 110 (3) ◽  
pp. 645-649 ◽  
Author(s):  
Jérémy B. J. Coquart ◽  
Roger G. Eston ◽  
Jean-Marie Grosbois ◽  
Christine Lemaire ◽  
Alain-Eric Dubart ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Power Output ◽  
Peak Oxygen Uptake ◽  
Obese Women

A low-calorie diet with or without interval exercise training improves adiposopathy in obese women

2019 ◽  
Vol 44 (10) ◽  
pp. 1057-1064 ◽  
Author(s):  
Nicole M. Gilbertson ◽  
Natalie Z.M. Eichner ◽  
Emily M. Heiston ◽  
Julian M. Gaitán ◽  
Monique E. Francois ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Composition ◽  
Insulin Sensitivity ◽  
Oxygen Uptake ◽  
Peak Oxygen Uptake ◽  
Energy Deficit ◽  
Obese Women ◽  
Interval Exercise ◽  
Low Calorie Diet ◽  
Calorie Diet

The objective of this study was to test if a low-calorie diet plus interval exercise (LCD+INT) improves adiposopathy, an endocrine dysfunction, when compared with an energy-deficit–matched LCD in obese women. Subjects (age: 48.2 ± 2.4 years, body mass index: 37.8 ± 1.3 kg/m2) were randomized to a 13-day LCD (n = 12; mixed meals of ∼1200 kcal/day) or LCD+INT (n = 12; 12 sessions of 60 min/day alternating 3 min at 50% and 90% peak heart rate). Exercise was estimated to expend 350 kcal per oxygen uptake–heart rate regression analysis and individuals were refed calories expended to match energy availability between groups. Absolute (post – pre caloric intake) and relative (total daily and exercise energy expenditure relative to calorie intake) energy deficits were calculated. Fitness (peak oxygen uptake) and body composition (BodPod; Cosmed USA Inc.) were measured and a 120-min, 75g oral glucose tolerance test was performed at pre- and post-intervention to assess adiposopathy (i.e., ratio of high molecular weight–adiponectin to leptin) and estimate insulin sensitivity. LCD and LCD+INT had similar absolute (P = 0.55) and relative (P = 0.76) energy deficits. LCD and LCD+INT had similar reductions in fat mass (both P < 0.001), despite LCD inducing greater weight loss (P = 0.02) than LCD+INT. Both treatments improved adiposopathy (P = 0.003) and peripheral insulin sensitivity (P = 0.02). Absolute energy deficit correlated to improved adiposopathy (r = –0.41, P = 0.05), and absolute and relative energy deficits were associated with increased insulin sensitivity (r = –0.47, P = 0.02; and r = –0.40, P = 0.05, respectively), independent of body composition changes and increased peak oxygen uptake. Taken together, LCD, with or without INT, improves adiposopathy in relation to insulin sensitivity in obese women, suggesting that a short-term energy deficit is key for reducing risk of type 2 diabetes.

Prediction of peak oxygen uptake from sub-maximal ratings of perceived exertion elicited during a graded exercise test in obese women

2009 ◽  
Vol 46 (6) ◽  
pp. 1150-1153 ◽  
Author(s):  
Jeremy B. J. Coquart ◽  
Christine Lemaire ◽  
Alain-Eric Dubart ◽  
Claire Douillard ◽  
David-Pol Luttenbacher ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Peak Oxygen Uptake ◽  
Obese Women ◽  
Ratings Of Perceived Exertion ◽  
Graded Exercise Test ◽  
Graded Exercise

Peak oxygen uptake and maximal power output of Olympic wheelchair-dependent athletes

1991 ◽  
Vol 23 (10) ◽  
pp. 1201???1209 ◽  
Author(s):  
H. E. J. VEEGER ◽  
M. HADJ YAHMED ◽  
L. H. V. VAN DER WOUDE ◽  
P. CHARPENTIER
Keyword(s):  
Oxygen Uptake ◽  
Power Output ◽  
Peak Oxygen Uptake ◽  
Maximal Power ◽  
Maximal Power Output

Shuttle walking test in obese women: test-retest reliability and concurrent validity with peak oxygen uptake

2014 ◽  
Vol 35 (2) ◽  
pp. 120-126 ◽  
Author(s):  
Soraia P. Jürgensen ◽  
Renata Trimer ◽  
Victor Z. Dourado ◽  
Luciana Di Thommazo-Luporini ◽  
José C. Bonjorno-Junior ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Concurrent Validity ◽  
Peak Oxygen Uptake ◽  
Obese Women ◽  
Walking Test ◽  
Retest Reliability ◽  
Test Retest Reliability

scholarly journals Warming Up Before a 20-Minute Endurance Effort: Is It Really Worth It?

2020 ◽  
Vol 15 (7) ◽  
pp. 964-970
Author(s):  
David Barranco-Gil ◽  
Lidia B. Alejo ◽  
Pedro L. Valenzuela ◽  
Jaime Gil-Cabrera ◽  
Almudena Montalvo-Pérez ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Oxygen Uptake ◽  
Power Output ◽  
Perceived Exertion ◽  
Time Trial ◽  
Peak Oxygen Uptake ◽  
Rating Of Perceived Exertion ◽  
Mean Power ◽  
Warm Up

Purpose: To analyze the effects of different warm-up protocols on endurance-cycling performance from an integrative perspective (by assessing perceptual, neuromuscular, physiological, and metabolic variables). Methods: Following a randomized crossover design, 15 male cyclists (35 [9] y; peak oxygen uptake [VO2peak] 66.4 [6.8] mL·kg−1·min−1) performed a 20-minute cycling time trial (TT) preceded by no warm-up, a standard warm-up (10 min at 60% of VO2peak), or a warm-up that was intended to induce potentiation postactivation (PAP warm-up; 5 min at 60% of VO2peak followed by three 10-s all-out sprints). Study outcomes were jumping ability and heart-rate variability (both assessed at baseline and before the TT), TT performance (mean power output), and perceptual (rating of perceived exertion) and physiological (oxygen uptake, muscle oxygenation, heart-rate variability, blood lactate, and thigh skin temperature) responses during and after the TT. Results: Both standard and PAP warm-up (9.7% [4.7%] and 12.9% [6.5%], respectively, P < .001), but not no warm-up (−0.9% [4.8%], P = .074), increased jumping ability and decreased heart-rate variability (−7.9% [14.2%], P = .027; −20.3% [24.7%], P = .006; and −1.7% [10.5%], P = .366). Participants started the TT (minutes 0–3) at a higher power output and oxygen uptake after PAP warm-up compared with the other 2 protocols (P < .05), but no between-conditions differences were found overall for the remainder of outcomes (P > .05). Conclusions: Compared with no warm-up, warming up enhanced jumping performance and sympathetic modulation before the TT, and the inclusion of brief sprints resulted in a higher initial power output during the TT. However, no warm-up benefits were found for overall TT performance or for perceptual or physiological responses during the TT.

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