Comment on Rogers et al. “Acute response of plasma markers of bone turnover to a single bout of resistance training or plyometrics”

2012 ◽  
Vol 112 (2) ◽  
pp. 328-329 ◽  
Author(s):  
Jonathan P. R. Scott ◽  
Craig Sale ◽  
Julie P. Greeves ◽  
William D. Fraser
Keyword(s):  
Resistance Training ◽  
Bone Turnover ◽  
Acute Response ◽  
Markers Of Bone Turnover ◽  
Single Bout ◽  
Plasma Markers

Effects of a Single Bout of Low Intensity KAATSU Resistance Training on Markers of Bone Turnover in Men

2006 ◽  
Vol 38 (Supplement) ◽  
pp. S531
Author(s):  
Debra Bemben ◽  
Ian Palmer ◽  
Takeshi Abe ◽  
Yoshiaki Sato ◽  
Joel Cramer ◽  
...  
Keyword(s):  
Resistance Training ◽  
Bone Turnover ◽  
Low Intensity ◽  
Markers Of Bone Turnover ◽  
Single Bout

Acute response of plasma markers of bone turnover to a single bout of resistance training or plyometrics

2011 ◽  
Vol 111 (5) ◽  
pp. 1353-1360 ◽  
Author(s):  
Robert S. Rogers ◽  
Andrew W. Dawson ◽  
Ze Wang ◽  
John P. Thyfault ◽  
Pamela S. Hinton
Keyword(s):  
Parathyroid Hormone ◽  
Resistance Training ◽  
Bone Turnover ◽  
Bone Turnover Markers ◽  
Time Of Day ◽  
Tartrate Resistant Acid Phosphatase ◽  
Type I ◽  
Acute Response ◽  
Single Bout ◽  
Turnover Markers

The time course of changes in plasma bone turnover markers following an acute bout of resistance training (RT) or plyometrics (PLY) has not been well characterized. This study is the first to compare the acute response of bone formation and resorption markers to a single bout of RT or PLY. Using a partially randomized, cross-over study design, 12 recreationally active men, aged 43 ± 5 yr, each completed four exercise trials: RT (Fed/Fasted) and PLY (Fed/Fasted). In addition to the RT and PLY trials, 5 of the original 12 participants also completed a fasted, no-exercise control trial to examine time-of-day variation. For each trial, blood was drawn immediately before exercise (PRE), immediately following exercise, and 15 min, 30 min, 1 h, 2 h, and 24 h following PRE for determination of plasma bone-specific alkaline phosphatase (BAP), osteocalcin (OC), tartrate-resistant acid phosphatase 5b (TRAP5b), COOH-terminal telopeptide of type I collagen (CTX), testosterone, parathyroid hormone, and cortisol. A one-factor repeated-measures ANOVA was performed for each trial to detect changes in bone markers during the 2 h following RT or PLY. TRAP5b transiently decreased during the 2 h following all exercise trials (main effect for time, P < 0.05), but returned to PRE concentrations 2 h postexercise. BAP, CTX, and OC remained unchanged, except for reductions in BAP and CTX following PLY-Fasted and PLY-Fed, respectively. During the control trial, BAP decreased, while TRAP5b, CTX, and OC remained unchanged. In general, plasma hormone concentrations decreased during the 2 h following PLY or RT, and cumulative decreases in TRAP5b during the 2 h following exercise were positively correlated with cumulative decreases in parathyroid hormone. The results of the present study suggest that the timing of the measurement of bone turnover markers relative to the last exercise bout is important for detection of exercise-associated changes in bone turnover markers, as the markers returned to preexercise values within 2 h of RT or PLY.

Time-course response in serum markers of bone turnover to a single-bout of electrical stimulation in patients with recent spinal cord injury

2012 ◽  
Vol 113 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Alfredo Arija-Blázquez ◽  
Silvia Ceruelo-Abajo ◽  
María S. Díaz-Merino ◽  
Juan Antonio Godino-Durán ◽  
Luís Martínez-Dhier ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Electrical Stimulation ◽  
Bone Turnover ◽  
Time Course ◽  
Serum Markers ◽  
Markers Of Bone Turnover ◽  
Cord Injury ◽  
Single Bout

The effects of a 6-month resistance training and dried plum consumption intervention on strength, body composition, blood markers of bone turnover, and inflammation in breast cancer survivors

2014 ◽  
Vol 39 (6) ◽  
pp. 730-739 ◽  
Author(s):  
Emily Simonavice ◽  
Pei-Yang Liu ◽  
Jasminka Z. Ilich ◽  
Jeong-Su Kim ◽  
Bahram Arjmandi ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Body Composition ◽  
Resistance Training ◽  
Bone Turnover ◽  
Cancer Survivors ◽  
Biochemical Markers ◽  
Muscular Strength ◽  
Breast Cancer Survivors ◽  
Markers Of Bone Turnover ◽  
Trap 5B

The purpose of this study was to examine the effects of resistance training (RT) and dried plum (DP) consumption on strength, body composition, blood markers of bone, and inflammation in breast cancer survivors (BCS). Twenty-three BCS (RT, n = 12; RT+DP, n = 11), aged 64 ± 7 years, were evaluated at baseline and after 6 months of intervention on the following: muscular strength (chest press and leg extension) via 1-repetition maximums (1RMs); body composition, specifically bone mineral density (BMD) by dual energy X-ray absorptiometry; biochemical markers of bone turnover (bone-specific alkaline phosphatase (BAP), tartrate resistant acid phosphatase (TRAP-5b)); and inflammation (C-reactive protein (CRP)). Target RT prescription was 2 days/week of 10 exercises, including 2 sets of 8–12 repetitions at ∼60%–80% of 1RM. RT+DP also consumed 90 g of DP daily. There were no baseline differences between groups or any group-by-time interactions for any of the variables. BCS increased upper (p < 0.05) (RT: 64 ± 14 to 80 ± 17 kg; RT+DP: 72 ± 23 to 91 ± 20 kg) and lower (p < 0.05) (RT: 69 ± 20 to 87 ± 28 kg; RT+DP: 78 ± 19 to 100 ± 21 kg) body strength. Body composition and BMD improvements were not observed. TRAP-5b decreased in the RT group (p < 0.05) (4.55 ± 1.57 to 4.04 ± 1.63 U/L) and the RT+DP group (p = 0.07) (5.10 ± 2.75 to 4.27 ± 2.03 U/L). Changes in BAP and CRP were not observed. RT was effective for improving biochemical markers of bone turnover and muscular strength in BCS. A longer and higher intensity intervention may be needed to reveal the true effects of RT and DP on body composition and biochemical markers of inflammation.

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