Effects of weigh-bearing and non-weight bearing exercise on markers of bone turnover during short-term weigh loss in overweight premenopausal women

2008 ◽  
Author(s):  
Joanne V. Loethen
Keyword(s):  
Bone Turnover ◽  
Weight Bearing ◽  
Premenopausal Women ◽  
Short Term ◽  
Markers Of Bone Turnover

Effect of calcium fortified milk supplementation with or without vitamin K on biochemical markers of bone turnover in premenopausal women

Nutrition ◽  
2006 ◽  
Vol 22 (11-12) ◽  
pp. 1120-1128 ◽  
Author(s):  
Marlena C. Kruger ◽  
Christine L. Booth ◽  
Jane Coad ◽  
Linda M. Schollum ◽  
Barbara Kuhn-Sherlock ◽  
...  
Keyword(s):  
Bone Turnover ◽  
Vitamin K ◽  
Biochemical Markers ◽  
Premenopausal Women ◽  
Fortified Milk ◽  
Markers Of Bone Turnover

The Effect of Yoga on Markers of Bone Turnover in Osteopenic Women: a Pilot Study

2009 ◽  
Vol 19 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Judith Balk ◽  
Melissa Gluck ◽  
Lisa Bernardo ◽  
Janet Catov
Keyword(s):  
Pilot Study ◽  
Bone Turnover ◽  
Postmenopausal Women ◽  
Bone Turnover Markers ◽  
Weight Bearing ◽  
Hatha Yoga ◽  
Yoga Practice ◽  
Beneficial Effects ◽  
Markers Of Bone Turnover ◽  
Turnover Markers

Weight-bearing exercise is recommended to improve bone density. Hatha Yoga is a popular form of weight-bearing exercise that includes physical postures, stretching, breathing, and relaxation. We hypothesized that Hatha Yoga would have beneficial effects on bone turnover markers. We conducted a small feasibility pilot study with a prospective, pre-post design comparing markers of bone turnover before and after Yoga training in sedentary osteopenic postmenopausal women. Markers of bone formation were measured with serum bone-specific alkaline phosphatase (BAP). Measures of bone resorption were measured with urinary type I collagen cross-linked N-telopeptide (uNTX). Seven participants completed a 12-week series of one hour per week Yoga classes, in addition to home Yoga practice. We analyzed the correlation between time spent on Yoga and time spent on other weight-bearing exercise and change in bone turnover markers. The amount of Yoga practice was significantly correlated with BAP levels (r = 0.68, p = 0.09). A weaker, non-significant correlation was found between the amount of Yoga practice and uNTX levels (r = -.54, p = .21). Compared to Yoga, other physical activities were less correlated with BAP and uNTX levels. Yoga may have beneficial effects on bone turnover in osteopenic postmenopausal women.

Weight-bearing exercise and markers of bone turnover in female athletes

2001 ◽  
Vol 90 (2) ◽  
pp. 565-570 ◽  
Author(s):  
Dana L. Creighton ◽  
Amy L. Morgan ◽  
Debra Boardley ◽  
P. Gunnar Brolinson
Keyword(s):  
Bone Resorption ◽  
Bone Formation ◽  
Bone Turnover ◽  
Female Athletes ◽  
Weight Bearing ◽  
Calorie Intake ◽  
Mineral Density ◽  
High Group ◽  
Markers Of Bone Turnover ◽  
Total Body

Weight-bearing activity provides an osteogenic stimulus, while effects of swimming on bone are unclear. We evaluated bone mineral density (BMD) and markers of bone turnover in female athletes ( n = 41, age 20.7 yr) comparing three impact groups, high impact (High, basketball and volleyball, n= 14), medium impact (Med, soccer and track, n = 13), and nonimpact (Non, swimming, n = 7), with sedentary age-matched controls (Con, n = 7). BMD was assessed by dual-energy X-ray absorptiometry at the lumbar spine, femoral neck (FN), Ward's triangle, and trochanter (TR); bone resorption estimated from urinary cross-linked N-telopeptides (NTx); and bone formation determined from serum osteocalcin. Adjusted BMD (g/cm; covariates: body mass index, weight, and calcium and calorie intake) was greater at the FN and TR in the High group (1.27 ± 0.03 and 1.05 ± 0.03) than in the Non (1.05 ± 0.04 and 0.86 ± 0.04) and Con (1.03 ± 0.05 and 0.85 ± 0.05) groups and greater at the TR in the Med group (1.01 ± 0.03) than in the Non (0.86 ± 0.04) and Con (0.85 ± 0.05) groups. Total body BMD was higher in the High group (4.9 ± 0.12) than in the Med (4.5 ± 0.12), Non (4.2 ± 0.14), and Con (4.1 ± 0.17) groups and greater in the Med group than in the Non and Con groups. Bone formation was lower in the Non group (19.8 ± 2.6) than in the High (30.6 ± 3.0) and Med (32.9 ± 1.9, P ≤ 0.05) groups. No differences in a marker of bone resorption (NTx) were noted. This indicates that women who participate in impact sports such as volleyball and basketball had higher BMDs and bone formation values than female swimmers.

Short-term high dietary calcium intake during bedrest has no effect on markers of bone turnover in healthy men

Nutrition ◽  
2010 ◽  
Vol 26 (5) ◽  
pp. 522-527 ◽  
Author(s):  
Natalie Baecker ◽  
Petra Frings-Meuthen ◽  
Scott M. Smith ◽  
Martina Heer
Keyword(s):  
Bone Turnover ◽  
Calcium Intake ◽  
Dietary Calcium ◽  
Dietary Calcium Intake ◽  
Short Term ◽  
Healthy Men ◽  
Markers Of Bone Turnover

scholarly journals The Effect of Bed Rest on Bone Turnover in Young Women Hospitalized for Anorexia Nervosa: A Pilot Study

2009 ◽  
Vol 94 (5) ◽  
pp. 1650-1655 ◽  
Author(s):  
Amy D. DiVasta ◽  
Henry A. Feldman ◽  
Ashley E. Quach ◽  
Maria Balestrino ◽  
Catherine M. Gordon
Keyword(s):  
Alkaline Phosphatase ◽  
Anorexia Nervosa ◽  
Bone Formation ◽  
Bone Turnover ◽  
Weight Bearing ◽  
Tertiary Care ◽  
Bed Rest ◽  
Short Term ◽  
Specific Alkaline Phosphatase ◽  
Bone Specific Alkaline Phosphatase

Abstract Context: Malnourished adolescents with anorexia nervosa (AN) requiring medical hospitalization are at high risk for skeletal insults. Even short-term bed rest may further disrupt normal patterns of bone turnover. Objective: The objective of the study was to determine the effect of relative immobilization on bone turnover in adolescents hospitalized for AN. Design: This was a short-term observational study. Setting: The study was conducted at a tertiary care pediatric hospital. Study Participants: Twenty-eight adolescents with AN, aged 13–21 yr with a mean body mass index of 15.9 ± 1.8 kg/m2, were enrolled prospectively on admission. Intervention: As per standard care, all subjects were placed on bed rest and graded nutritional therapy. Main Outcome Measure: Markers of bone formation (bone specific alkaline phosphatase), turnover (osteocalcin), and bone resorption (urinary N-telopeptides NTx) were measured. Results: During the 5 d of hospitalization, serum osteocalcin increased by 0.24 ± 0.1 ng/ml · d (P = 0.02). Urine N-telopeptides reached a nadir on d 3, declining −6.9 ± 2.8 nm bone collagen equivalent per millimole creatinine (P = 0.01) but returned to baseline by d 5 (P > 0.05). Bone-specific alkaline phosphatase exhibited a decline that was strongly age dependent, being highly significant for younger subjects only [age 14 yr: −0.42 ± 0.11 (P = 0.0002); age 18 yr: −0.03 ± 0.08 (P = 0.68)]. Age had no effect on other outcome measures. Conclusion: Limitation of physical activity during hospitalization for patients with AN is associated with suppressed bone formation and resorption and an imbalance of bone turnover. Future interventional studies involving mechanical stimulation and/or weight-bearing activity are needed to determine whether medical protocols prescribing strict bed rest are appropriate.

Sign in / Sign up

Export Citation Format

Share Document